| 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:CommonStockValue | ▄▄▄ | 0.002 | 0.002 | 0.002 | NA | NA | NA | NA | NA | NA | NA | NA | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.001 | 0.001 | 0.001 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | NA | NA | NA |
| us-gaap:SharesOutstanding us-gaap:StatementClassOfStock,us-gaap:StatementEquityComponents pwr:CommonStockClassUndefined,us-gaap:CommonStock | ▆█▁ | 139.197724 | 139.446849 | 138.300191 | NA | 137.711812 | 137.645986 | 142.324318 | 142.273922 | 142.166965 | 142.081375 | 141.1039 | 148.720481 | 149.088134 | 149.600337 | 153.342326 | NA | NA | NA | 144.710773 | NA | NA | NA | 152.907166 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:CommonStockSharesIssued | ▄ | 164.880628 | NA | 162.710792 | NA | NA | NA | NA | NA | NA | NA | NA | 157.280496 | 156.93402 | 156.828701 | 155.219154 | 151.690321 | 148.964532 | 148.560886 | 144.710773 | 229.319565 | 228.951159 | 228.901046 | 227.898509 | 227.855948 | 226.928063 | 226.885163 | 226.194656 | 226.160641 | 225.920534 | 225.801098 | 224.968797 | 222.251194 | 221.497238 | 221.384192 | 220.91705 | 220.820903 | 220.77524 | 220.009156 | 217.479462 | 216.905049 | 215.358737 | 214.850437 | 213.981415 | NA | NA | NA |
| us-gaap:CommonStockSharesAuthorized | ▄ | 600.0 | NA | 600.0 | NA | NA | NA | NA | NA | NA | NA | NA | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 600.0 | 300.0 | 300.0 | NA | NA | NA |
| us-gaap:CommonStockSharesOutstanding | ▄ | 139.197724 | NA | 138.300191 | NA | NA | NA | NA | NA | NA | NA | NA | 148.720481 | 149.088134 | 149.600337 | 153.342326 | 151.206729 | 148.490467 | 148.109496 | 144.710773 | 144.552571 | 144.194115 | 153.563738 | 152.907166 | 156.457392 | 198.674187 | 204.495383 | 210.81979 | 212.462599 | 212.225153 | 213.450109 | 212.942767 | 210.230028 | 209.478759 | 209.440854 | 209.270586 | 209.255389 | 209.211829 | 208.449333 | 206.203005 | 205.648831 | 207.322265 | 211.735631 | 211.138091 | NA | NA | NA |
| us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding | █▁ | 144.607 | 144.447 | NA | 144.363 | 143.521 | 146.787 | NA | 147.438 | 147.241 | 146.458 | NA | 153.687 | 154.595 | 157.556 | NA | 158.62 | 156.165 | 155.168 | NA | 155.024 | 156.13 | 162.806 | NA | 188.961 | 213.059 | 215.49 | NA | 219.517 | 219.642 | 219.075 | NA | 214.916 | 214.368 | 213.512 | NA | 213.242 | 213.087 | 211.592 | NA | 210.692 | 215.023 | 214.167 | NA | 211.096 | 211.082 | 210.342 |
| us-gaap:WeightedAverageNumberOfSharesOutstandingBasic | █▁ | 140.276 | 140.121 | NA | 140.542 | 139.856 | 144.454 | NA | 145.913 | 145.935 | 145.11 | NA | 152.562 | 153.325 | 156.546 | NA | 157.484 | 155.09 | 155.168 | NA | 155.024 | 156.128 | 162.803 | NA | 188.951 | 213.047 | 215.473 | NA | 219.492 | 219.612 | 219.033 | NA | 214.866 | 214.314 | 213.453 | NA | 213.15 | 212.987 | 211.481 | NA | 210.583 | 214.827 | 214.167 | NA | 209.428 | 209.399 | 208.673 |
| us-gaap:EarningsPerShareBasic | ▅▄██▃▂▅▆▁▅▂▅▃▁▅▄▃ | 0.83 | 0.64 | 1.2 | 1.16 | 0.53 | 0.27 | 0.8099999999999998 | 0.93 | 0.19 | 0.83 | 0.3799999999999999 | 0.82 | 0.49 | 0.24 | 0.73 | 0.57 | 0.41 | NA | 0.56 | 0.48 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | 0.45999999999999996 | 0.45 | 0.31 | 0.22 | 0.32 | 0.25 | 0.15 | -0.08 | 0.16 | 0.3 | 0.16 | 0.11 |
| us-gaap:EarningsPerShareDiluted | ▅▄██▃▂▅▆▁▅▂▅▃▁▅▄▃ | 0.81 | 0.62 | 1.17 | 1.13 | 0.52 | 0.26 | 0.8 | 0.92 | 0.19 | 0.82 | 0.3799999999999999 | 0.81 | 0.48 | 0.24 | 0.72 | 0.56 | 0.41 | NA | 0.56 | 0.48 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | 0.45999999999999996 | 0.45 | 0.31 | 0.22 | 0.32 | 0.25 | 0.15 | -0.08 | 0.16 | 0.3 | 0.16 | 0.11 |
| 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,pwr:ElectricPowerInfrastructureServices | █▇▇█▄▃▄▅▃▂▂▂▁▁ | 2147.775 | 2060.12 | 2105.777 | 2107.621 | 1792.918 | 1767.027 | 1847.381 | 1876.097 | 1734.336 | 1664.023 | 1659.146 | 1617.736 | 1570.173 | 1568.507 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,pwr:PipelineAndIndustrialInfrastructureServices | NA | NA | NA | 912.54 | 713.313 | 997.068 | 1265.419 | 1476.798 | 1104.863 | 1143.236 | 1453.072 | 1367.545 | 1086.175 | 849.069 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,pwr:UndergroundUtilityAndInfrastructureSolutionsDivision | █▁ | 852.041 | 643.461 | NA | NA | 713.313 | 997.068 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
|---|
| 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType pwr:RestrictedStockUnitsToBeSettledInCash | ▆█▇▄▃▂▃▂▂▄▂▂▃▂▃▄▂▅▄▃▃▃▂▁▂▂▁▃▂▁▃▁▁▁▁▁▁▁ | 3.5 | 4.9 | 4.1 | 2.6 | 1.6 | 1.1 | 1.4 | 0.8 | 1.1 | 2.6 | 1.0 | 1.2 | 1.5 | 1.3 | 1.9 | 2.3 | 1.2 | 2.7 | 2.1 | 2.0 | 1.4 | 1.5 | 0.8 | 0.7 | 1.2 | 1.3 | 0.7 | 1.6 | 0.9 | 0.7 | 1.4 | 0.6 | 0.5 | 0.6 | 0.7 | 0.5 | 0.5 | 0.4 | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:ComprehensiveIncomeNetOfTax | ▆▅█▇▅▁▆▆▃▆▂▆▄▃▅▆▅▄▄▄▃▄▁▆▄▁▃▃▅▃▆▅▃▄▅▅▄▄▄▃▃▂▃▄▃ | 124.928 | 98.3 | 211.396 | 178.62 | 108.683 | -44.282 | 140.439 | 123.284 | 43.216 | 139.335 | 8.462 | 135.389 | 54.242 | 12.6 | 102.353 | 128.293 | 90.522 | 62.088 | 58.735 | 61.937 | 19.645 | 81.082 | -34.918 | 148.882 | 61.014 | -35.47 | 17.23 | 44.579 | 112.426 | 36.425 | 140.78 | 106.026 | 45.088 | 58.338 | 93.668 | 118.691 | 50.983 | 57.03 | 72.55 | 23.351 | 29.618 | -6.416 | 42.013 | 64.743 | 30.174 | NA |
| us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest | ▃▃▃▂▂▄▄▂▂▁▂▁▁▂▃▁▁▁▂▁▁▁▁▄▅▇▇█▇▆▇█▇▇▅▇▆▆▇▆▄▂▂▂▁ | 1.938 | 1.558 | 1.91 | 0.787 | 0.849 | 2.817 | 2.155 | 0.954 | 1.115 | 0.547 | 0.975 | 0.348 | 0.341 | 0.997 | 2.015 | 0.536 | 0.523 | 0.173 | 0.775 | 0.41 | 0.167 | 0.363 | 0.192 | 2.568 | 3.456 | 4.701 | 4.399 | 5.367 | 4.362 | 4.24 | 4.62 | 5.503 | 4.489 | 4.776 | 3.023 | 4.458 | 4.259 | 4.287 | 4.494 | 3.606 | 2.512 | 1.289 | 0.768 | 0.92 | 0.337 | NA |
| us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest | ▆▅█▇▅▁▆▆▃▆▂▆▄▃▅▆▅▄▄▄▃▄▁▆▄▁▃▄▅▃▆▅▄▄▅▆▄▄▄▃▃▂▃▄▃ | 126.866 | 99.858 | 213.306 | 179.407 | 109.532 | -41.465 | 142.594 | 124.238 | 44.331 | 139.882 | 9.437 | 135.737 | 54.583 | 13.597 | 104.368 | 128.829 | 91.045 | 62.261 | 59.51 | 62.347 | 19.812 | 81.445 | -34.726 | 151.45 | 64.47 | -30.769 | 21.629 | 49.946 | 116.788 | 40.665 | 145.4 | 111.529 | 49.577 | 63.114 | 96.691 | 123.149 | 55.242 | 61.317 | 77.044 | 26.957 | 32.13 | -5.127 | 42.781 | 65.663 | 30.511 | NA |
| us-gaap:CostOfGoodsAndServicesSold | ▅▃▄▅▁▄▆█▅▄▆▅▃▁▁▂ | 2552.105 | 2330.691 | 2446.312 | 2512.647 | 2150.967 | 2431.899 | 2669.479 | 2879.45 | 2519.694 | 2443.278 | 2692.503 | 2559.451 | 2322.977 | 2116.528 | 2155.751 | 2258.676 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:GrossProfit | ▇▆▇█▆▅▇▇▅▆▇▇▅▅▅▅▅▄▅▅▃▃▃▄▄▄▅▆▄▄▅▄▄▄▄▄▄▃▃▃▂▁▂▃▂▂ | 447.711 | 372.89 | 465.873 | 507.514 | 355.264 | 332.196 | 443.321 | 473.445 | 319.505 | 363.981 | 419.715 | 425.83 | 333.371 | 301.048 | 322.876 | 350.631 | 302.165 | 266.188 | 307.688 | 302.582 | 200.217 | 203.313 | 223.039 | 235.215 | 227.505 | 252.661 | 327.03 | 352.971 | 281.448 | 272.071 | 302.843 | 273.053 | 241.284 | 238.273 | 286.739 | 280.434 | 235.407 | 195.515 | 200.928 | 194.69 | 154.09 | 70.891 | 159.25 | 189.994 | 156.037 | 129.142 |
| us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | ▅▄▆▇▄▃▅▆▃▅▄▅▄▂▂▅▄▃▄▄▂▂▁▃▃▃▄▅▅▃█▅▄▄▄▅▄▃▃▃ | 159.922 | 105.043 | 171.722 | 234.177 | 107.784 | 57.663 | 145.933 | 191.928 | 69.547 | 164.879 | 128.791 | 168.166 | 104.095 | 56.614 | 45.925 | 132.195 | 104.605 | 71.032 | 113.897 | 128.063 | 31.424 | 34.302 | 0.504 | 78.133 | 67.047 | 92.56 | 107.67 | 142.115 | 131.631 | 91.701 | 262.646 | 140.918 | 116.887 | 118.798 | 128.642 | 146.209 | 97.448 | 78.754 | 69.594 | 92.941 | NA | NA | NA | NA | NA | NA |
| us-gaap:IncomeTaxExpenseBenefit | ▆▅▄▇▅▅▅▆▆▆▇▆▅▅▁▆▆▅▅▆▅▅▄▅▅▆▆▆▆▅█▆▆▆▆▆▆▅▅▆▅▄▅▅▅▅ | 40.951 | 13.724 | -0.239 | 70.477 | 32.989 | 16.16 | 25.634 | 54.906 | 41.088 | 43.844 | 71.0 | 43.267 | 29.389 | 18.003 | -69.651 | 42.346 | 40.245 | 22.592 | 24.592 | 54.516 | 14.695 | 13.443 | 2.898 | 32.389 | 31.584 | 34.375 | 36.068 | 42.1 | 46.187 | 33.053 | 91.329 | 42.509 | 42.161 | 41.941 | 43.568 | 45.353 | 40.468 | 29.47 | 21.648 | 37.341 | 23.61 | -10.645 | 20.375 | 31.489 | 22.768 | 16.066 |
| us-gaap:IncomeTaxesPaid | ▆▁▇▇▁▅▁▄▅▁▂▄▃▂▁▁█▁ | 62.883 | 4.602 | 81.496 | 86.077 | 9.392 | 54.221 | 7.196 | 40.745 | 60.333 | 8.193 | 21.895 | 38.445 | 34.598 | 17.957 | 7.223 | 3.616 | 93.279 | 8.217 | NA | 21.799 | 27.038 | 6.486 | 24.379 | 56.057 | 37.876 | 12.609 | 52.336 | 15.805 | 73.334 | 87.712 | 59.228 | 36.557 | 65.809 | 91.581 | 266.673 | -40.255 | 23.33 | 47.594 | 6.416 | 0.88 | 3.235 | -2.775 | -198.993 | 24.617 | 31.273 | -34.403 |
| us-gaap:InterestExpense | ▆▆▅▅▄▆██▇▆▅▄▄▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂ | 13.109 | 12.475 | 11.304 | 11.049 | 8.654 | 14.006 | 18.824 | 18.369 | 15.821 | 13.876 | 11.77 | 9.219 | 9.178 | 6.778 | 6.652 | 6.058 | 4.271 | 3.965 | 3.989 | 3.726 | 3.583 | 3.589 | 2.928 | 2.021 | 1.675 | 1.4 | 1.334 | 1.321 | 1.128 | 0.982 | 1.188 | 0.475 | 0.503 | 0.502 | 1.236 | 0.967 | 0.959 | 0.584 | 0.573 | 0.738 | 0.255 | 0.255 | 0.253 | 0.269 | 1.527 | 2.864 |
| us-gaap:InterestPaidNet | █▂▁▄▄▆█▇▇▆▅▄▄▃▃▃ | 18.894 | 4.039 | 1.438 | 8.443 | 8.989 | 13.272 | 19.336 | 16.312 | 15.725 | 13.432 | 10.924 | 9.279 | 8.772 | 5.96 | 6.059 | 5.808 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:NetIncomeLoss | ▅▄██▃▂▅▆▁▆▂▆ | 117.033 | 89.761 | 170.051 | 162.913 | 73.946 | 38.686 | 118.144 | 136.068 | 27.344 | 120.488 | 56.816 | 124.551 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:NetIncomeLossAttributableToNoncontrollingInterest | ▃▃▃▂▂▄▄▂▂▁▂▁▁▂▃▁▁▁▂▁▁▁▁▄▅▇▇█▇▆▇█▇▇▅▇▆▆▇▆▄▂▂▂▁▁ | 1.938 | 1.558 | 1.91 | 0.787 | 0.849 | 2.817 | 2.155 | 0.954 | 1.115 | 0.547 | 0.975 | 0.348 | 0.3 | 1.0 | 2.015 | 0.5 | 0.5 | 0.173 | 0.775 | 0.41 | 0.167 | 0.363 | 0.192 | 2.568 | 3.456 | 4.701 | 4.399 | 5.367 | 4.362 | 4.24 | 4.62 | 5.503 | 4.489 | 4.776 | 3.023 | 4.458 | 4.259 | 4.287 | 4.494 | 3.606 | 2.512 | 1.289 | 0.768 | 0.92 | 0.337 | 0.356 |
| us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic | ▅▄▇▆▄▃▅▆▂▅▃▅▄▃▅▄▃▃▄▄▂▂▁█▃▃▄▄▄▃▇▄▄▄▄▄▃▃▄▃▂▁▃▃▃▂ | 117.033 | 89.761 | 170.051 | 162.913 | 73.946 | 38.686 | 118.144 | 136.068 | 27.344 | 120.488 | 56.816 | 124.551 | 74.365 | 37.614 | 113.561 | 89.313 | 63.837 | 48.267 | 87.583 | 73.742 | 16.562 | 20.496 | -5.074 | 216.388 | 46.109 | 53.484 | 66.576 | 94.648 | 81.082 | 54.408 | 166.697 | 92.906 | 70.237 | 72.081 | 98.986 | 96.398 | 65.538 | 45.707 | 66.314 | 51.994 | 31.801 | -17.594 | 33.666 | 62.78 | 32.986 | 23.744 |
| us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted | ▄ | 117.033 | NA | NA | NA | 73.946 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | 66.314 | 51.994 | 31.801 | NA | 33.666 | 62.78 | 32.986 | NA |
| us-gaap:OperatingIncomeLoss | ▆▅▆█▅▄▆▇▄▅▆▇▅▄▃▅▅▄▅▅▃▃▂▄▃▄▅▅▅▄▆▅▅▅▅▅▅▄▄▄▃▁▃▄▃▃ | 161.651 | 113.729 | 175.503 | 242.215 | 112.916 | 80.737 | 147.413 | 209.394 | 78.58 | 119.487 | 149.448 | 192.561 | 123.039 | 75.221 | 53.556 | 140.428 | 109.791 | 75.074 | 117.887 | 130.163 | 35.469 | 37.294 | 3.624 | 80.878 | 68.851 | 93.717 | 108.775 | 142.912 | 133.393 | 90.495 | 149.385 | 141.078 | 117.174 | 119.291 | 128.846 | 145.654 | 111.147 | 79.475 | 92.888 | 93.981 | 57.73 | -26.916 | 54.507 | 94.561 | 64.825 | 42.29 |
| us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax | ▆▆▇▆▇▁▆▅▆▆▃▆▄▄▅▇▆▆▄▅▅█▄▂▆▁▃▃▇▄▄▆▄▅▅▆▄▆▆▄▅ | 7.888 | 8.532 | 43.963 | 15.707 | 34.737 | -82.968 | 21.559 | -12.778 | 15.891 | 18.863 | -50.185 | 10.838 | -20.123 | -25.014 | -12.082 | 38.98 | 26.685 | 13.821 | -28.727 | -11.805 | 3.083 | 60.586 | -29.909 | -67.497 | 14.897 | -88.949 | -47.849 | -50.053 | 31.362 | -17.965 | -28.781 | 13.12 | -25.149 | -13.743 | -5.098 | 22.289 | -14.56 | 11.318 | 7.413 | -28.643 | -2.183 | NA | NA | NA | NA | NA |
| us-gaap:OtherComprehensiveIncomeLossNetOfTax | ▆▆▇▆▇▁▆▅▆▆▃▆▄▄▅▇▆▆▄▅▅█▄▂▆▁▃▃▇▄▄▆▄▅▅▆▄▆▅▄▅ | 7.895 | 8.539 | 41.345 | 15.707 | 34.737 | -82.968 | 22.295 | -12.784 | 15.872 | 18.847 | -48.354 | 10.838 | -20.123 | -25.014 | -11.208 | 38.98 | 26.685 | 13.821 | -28.848 | -11.805 | 3.083 | 60.586 | -29.844 | -67.506 | 14.905 | -88.954 | -49.346 | -50.069 | 31.344 | -17.983 | -25.917 | 13.12 | -25.149 | -13.743 | -5.318 | 22.293 | -14.555 | 11.323 | 6.236 | -28.643 | -2.183 | NA | NA | NA | NA | NA |
| us-gaap:OtherNonoperatingIncomeExpense | ▃▃▃▃▃▂▄▃▃█▂▁▁▁▂▂▂▂▂▃▂▂▂▂▂▂▂▂▂▃▃▂▂▂▂▃▂▂▂▂▂▂▂▃▂▂ | 8.471 | 3.672 | 6.188 | 2.931 | 3.247 | -9.827 | 17.179 | 0.717 | 6.521 | 58.959 | -9.314 | -15.498 | -10.426 | -11.975 | -1.164 | -2.371 | -1.079 | 0.239 | -0.062 | 0.841 | -0.725 | 0.262 | -0.415 | -1.07 | -0.134 | -0.212 | -0.134 | -0.378 | -1.233 | 0.643 | 0.555 | -0.824 | -0.353 | -0.513 | -1.344 | 1.138 | -0.31 | 0.165 | -0.164 | -0.528 | 0.199 | -0.065 | 0.304 | 0.479 | -0.479 | 0.371 |
| us-gaap:ProfitLoss | ▅▄▇▆▄▃▅▆▂▅▃▅▄▃▅▄▃▃▄▄▂▂▁█▃▃▄▄▄▃▇▄▄▄▅▄▄▃▄▃▃▁▃▃▂▂ | 118.971 | 91.319 | 171.961 | 163.7 | 74.795 | 41.503 | 120.299 | 137.022 | 28.459 | 121.035 | 57.791 | 124.899 | 74.706 | 38.611 | 115.576 | 89.849 | 64.36 | 48.44 | 88.358 | 74.152 | 16.729 | 20.859 | -4.882 | 218.956 | 49.565 | 58.185 | 70.975 | 100.015 | 85.444 | 58.648 | 171.317 | 98.409 | 74.726 | 76.857 | 102.009 | 100.856 | 69.797 | 49.994 | 70.808 | 55.6 | 34.313 | -16.305 | 34.434 | 63.7 | 33.323 | 24.1 |
| us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax | ▇▆▇▇▆▆▇█▇▇▇▇▆▅▆▆▅▅▅▄▄▄▄▄▄▄▅▅▄▄▄▃▃▃▃▄▃▃▃▂▂▁▂▂▁▁ | 2999.816 | 2703.581 | 2912.185 | 3020.161 | 2506.231 | 2764.095 | 3112.8 | 3352.895 | 2839.199 | 2807.259 | 3112.218 | 2985.281 | 2656.348 | 2417.576 | 2478.627 | 2609.307 | 2200.374 | 2178.17 | 2102.966 | 2042.186 | 1792.43 | 1713.737 | 1899.272 | 1939.438 | 1872.34 | 1886.956 | 2052.982 | 2171.144 | 1864.55 | 1762.574 | 1817.623 | 1645.132 | 1474.377 | 1585.71 | 1673.342 | 1685.201 | 1516.696 | 1425.177 | 1513.137 | 1250.819 | 1010.914 | 848.959 | 1106.426 | 1206.007 | 870.502 | 748.283 |
| us-gaap:SellingGeneralAndAdministrativeExpense | █▇█▇▆▇▇▇▆▇▆▆▆▆▆▅▅▅▄▄▄▄▄▃▄▄▆▅▃▄▃▃▂▂▁▃▂▂▂▁▁▁▁▁▁▁ | 270.11 | 243.352 | 265.775 | 250.654 | 227.852 | 230.793 | 255.129 | 245.01 | 223.944 | 231.908 | 212.008 | 224.04 | 206.104 | 215.422 | 206.264 | 201.224 | 185.88 | 184.552 | 173.882 | 164.325 | 156.607 | 158.524 | 151.79 | 145.687 | 149.923 | 150.238 | 208.746 | 200.521 | 139.44 | 173.331 | 143.349 | 124.949 | 119.031 | 113.681 | 89.261 | 124.276 | 114.711 | 106.646 | 99.519 | 92.414 | 89.489 | 91.541 | 94.509 | 82.037 | 82.122 | 81.004 |
| 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
|---|
| 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:Assets | ██▇▇▇▇▇█▇▆▅▅▅▅▄▅▃▃▃▃▃▃▂▃▄▄▄▄▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁ | 8720.596 | 8557.414 | 8398.272 | 8325.487 | 8089.63 | 8228.944 | 8331.682 | 8865.093 | 8021.817 | 7652.516 | 7075.787 | 7191.174 | 6790.382 | 6653.402 | 6480.154 | 6640.246 | 5753.344 | 5543.053 | 5354.059 | 5476.468 | 5297.101 | 5295.519 | 5213.543 | 5373.424 | 6130.51 | 6140.834 | 6312.024 | 6229.289 | 5909.059 | 5826.62 | 5793.245 | 5494.968 | 5187.931 | 5154.818 | 5140.757 | 5255.27 | 4897.303 | 4755.334 | 4699.114 | 4463.955 | 4292.855 | 4324.562 | 4341.212 | NA | NA | NA |
| us-gaap:Liabilities | ▇▇▆▇▇▇▇█▇▆▅▅▅▅▄▄▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁ | 4230.802 | 4177.251 | 4049.3 | 4169.921 | 4171.628 | 4433.766 | 4277.851 | 4955.886 | 4245.558 | 3927.459 | 3470.334 | 3366.94 | 3096.917 | 3006.437 | 2684.525 | 2910.015 | 2244.013 | 2144.242 | 2011.357 | 2199.883 | 2093.927 | 2122.29 | 2125.728 | 2169.51 | 1920.792 | 1830.081 | 1786.484 | 1740.658 | 1507.972 | 1509.944 | 1551.926 | 1470.714 | 1300.092 | 1323.997 | 1368.841 | 1585.026 | 1351.149 | 1284.62 | 1309.851 | 1160.958 | 989.574 | 964.784 | 974.293 | NA | NA | NA |
| us-gaap:LiabilitiesAndStockholdersEquity | ██▇▇▇▇▇█▇▆▅▅▅▅▄▅▃▃▃▃▃▃▂▃▄▄▄▄▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁ | 8720.596 | 8557.414 | 8398.272 | 8325.487 | 8089.63 | 8228.944 | 8331.682 | 8865.093 | 8021.817 | 7652.516 | 7075.787 | 7191.174 | 6790.382 | 6653.402 | 6480.154 | 6640.246 | 5753.344 | 5543.053 | 5354.059 | 5476.468 | 5297.101 | 5295.519 | 5213.543 | 5373.424 | 6130.51 | 6140.834 | 6312.024 | 6229.289 | 5909.059 | 5826.62 | 5793.245 | 5494.968 | 5187.931 | 5154.818 | 5140.757 | 5255.27 | 4897.303 | 4755.334 | 4699.114 | 4463.955 | 4292.855 | 4324.562 | 4341.212 | NA | NA | NA |
| us-gaap:StockholdersEquity | █▇▇▆▅▄▆▅▄▄▄▅▄▄▄▄▃▃▂▂▂▁▁▂▆▇██▇▇▇▆▅▅▄▄▃▃▂▂▂▂▂ | 4486.732 | 4374.943 | 4344.181 | 4151.95 | 3914.429 | 3790.492 | 4050.292 | 3907.406 | 3774.923 | 3723.744 | 3604.159 | 3822.818 | 3690.66 | 3643.352 | 3791.571 | 3727.53 | 3506.723 | 3396.343 | 3339.427 | 3273.936 | 3200.323 | 3170.545 | 3085.494 | 3189.372 | 4196.244 | 4297.488 | 4514.473 | 4471.037 | 4385.86 | 4305.805 | 4234.188 | 4015.933 | 3882.518 | 3826.131 | 3766.548 | 3662.899 | 3536.534 | 3461.606 | 3381.952 | 3294.697 | 3298.587 | 3357.125 | 3365.555 | NA | NA | NA |
| 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:AssetsCurrent | ▇▆▆▆▆▇▇█▇▆▆▆▅▅▄▅▄▃▃▃▃▃▃▃▃▃▄▄▃▃▃▃▃▃▃▃▂▂▂▁▁▁▁ | 3733.935 | 3605.571 | 3588.389 | 3677.008 | 3644.755 | 3758.6 | 3830.986 | 4301.927 | 3751.932 | 3554.544 | 3326.104 | 3378.122 | 3074.836 | 2957.069 | 2869.907 | 2948.239 | 2617.199 | 2474.913 | 2288.745 | 2405.351 | 2244.387 | 2248.374 | 2277.519 | 2362.664 | 2315.567 | 2387.64 | 2553.976 | 2536.467 | 2242.928 | 2214.457 | 2313.318 | 2137.387 | 2176.827 | 2185.665 | 2201.727 | 2136.427 | 1824.501 | 1770.113 | 1765.154 | 1576.877 | 1476.58 | 1562.324 | 1596.364 | NA | NA | NA |
| us-gaap:CashAndCashEquivalentsAtCarryingValue | ▃▃▃▃▇▅▂▁▁▁▁▂▂▂▂▁▂▂▂▂▂▂▂▁▁▂▃▂▃▄▆▄▅▅▅▂▂▂▄▃▅▆▇▅▆█ | 212.473 | 200.218 | 184.62 | 216.935 | 530.67 | 377.205 | 164.798 | 80.044 | 73.356 | 85.423 | 78.687 | 113.524 | 120.357 | 101.7 | 138.285 | 91.532 | 99.565 | 106.514 | 112.183 | 117.366 | 162.344 | 155.315 | 128.771 | 49.194 | 65.427 | 135.534 | 190.515 | 144.159 | 188.948 | 273.34 | 488.777 | 309.153 | 363.113 | 366.619 | 394.701 | 128.21 | 172.868 | 177.367 | 315.349 | 257.838 | 380.382 | 503.019 | 539.221 | 441.247 | 519.818 | 659.824 |
| us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents | ▃▃▃▃█▆▂▁▁▁▁▂▂▁▂▁▁▁▂ | 214.715 | 202.615 | 186.808 | 219.102 | 532.853 | 381.638 | 169.745 | 84.511 | 78.117 | 89.492 | 83.256 | 118.174 | 124.737 | 105.28 | 143.775 | 95.234 | 102.608 | 107.532 | 114.41 | NA | NA | NA | 128.771 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:AccountsReceivableNetCurrent | ▆▆▇▇▆▆▇█▆▆▆▅▅▅▅▅▃▃▃▃▃▃▃▄▃▄▄▄▃▃▃▃▂▂▃▃▂▂▂▂▁▁▁ | 2570.457 | 2666.983 | 2716.083 | 2750.268 | 2370.286 | 2593.285 | 2747.911 | 3188.328 | 2632.003 | 2580.665 | 2354.737 | 2291.608 | 2108.317 | 2088.682 | 1985.077 | 1980.245 | 1614.113 | 1589.257 | 1500.115 | 1565.08 | 1384.554 | 1493.255 | 1621.133 | 1700.314 | 1626.833 | 1642.675 | 1812.539 | 1873.241 | 1589.927 | 1501.857 | 1439.115 | 1434.701 | 1282.949 | 1283.739 | 1328.081 | 1441.021 | 1138.72 | 1114.246 | 1066.273 | 1008.936 | 813.057 | 767.126 | 766.387 | NA | NA | NA |
| us-gaap:InventoryNet | ▄▃▃▂▃▃▃▄▄▆█▇▆▇▆▆▇▆▆▆▅▅▅▄▃▂▂▂▂▁▁▁▂▂▂▃▃▅▅▅▄▃▃ | 62.154 | 51.009 | 50.472 | 39.821 | 48.274 | 50.365 | 55.719 | 67.039 | 68.4 | 81.117 | 107.732 | 94.67 | 85.859 | 94.548 | 80.89 | 86.391 | 94.152 | 89.973 | 88.548 | 89.109 | 74.976 | 72.643 | 75.285 | 64.69 | 55.815 | 45.824 | 38.921 | 39.411 | 40.772 | 35.604 | 31.877 | 35.59 | 40.852 | 37.666 | 38.261 | 55.916 | 57.649 | 72.263 | 71.416 | 74.024 | 62.216 | 53.091 | 51.754 | NA | NA | NA |
| us-gaap:PrepaidExpenseAndOtherAssetsCurrent | ▅▃▃▄▄▃▆█▇▅▄▄▄▃▃▂▃▂▁▂▂▂▂ | 219.538 | 169.105 | 183.382 | 191.501 | 205.722 | 168.565 | 261.29 | 313.601 | 294.508 | 234.091 | 208.057 | 198.314 | 208.798 | 173.913 | 168.363 | 147.295 | 178.489 | 132.642 | 114.591 | 135.95 | 156.037 | 143.943 | 134.585 | NA | NA | NA | 161.024 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType pwr:BuildingsAndLeaseholdImprovements | NA | NA | 249.106 | NA | NA | NA | 231.92 | NA | NA | NA | 208.974 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType pwr:OfficeEquipmentFurnitureAndFixturesAndInformationTechnologySystems | NA | NA | 244.113 | NA | NA | NA | 228.329 | NA | NA | NA | 212.769 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType pwr:OperatingEquipmentAndVehicles | NA | NA | 2297.12 | NA | NA | NA | 2068.644 | NA | NA | NA | 1865.917 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:ConstructionInProgress | NA | NA | 20.9 | NA | NA | NA | 26.236 | NA | NA | NA | 19.507 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:Land | NA | NA | 69.389 | NA | NA | NA | 67.56 | NA | NA | NA | 61.305 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment | NA | NA | 1372.132 | NA | NA | NA | 1250.197 | 1203.887 | 1163.496 | 1137.165 | 1092.44 | 1086.424 | 1042.815 | 1011.535 | 981.275 | 966.387 | 929.318 | 894.093 | 862.825 | 852.073 | 824.108 | 791.11 | 755.272 | 733.234 | 707.892 | 770.798 | 739.545 | 716.89 | 688.754 | 657.326 | 631.939 | 627.839 | 590.265 | 569.821 | 555.03 | 582.959 | 563.86 | 545.525 | 519.808 | 501.235 | 481.69 | 451.889 | 428.025 | NA | NA | NA | |
| us-gaap:AmortizationOfIntangibleAssets | ███▇▆▆█▅▄▄▄▃▃▃▃▃▂▂▂▂▂▂▃▃▃▃▃▃▃▂▃▂▁▁▂▃▃▃▂▂▂▂▃▅▃▁ | 21.291 | 21.355 | 21.33 | 19.687 | 17.779 | 17.908 | 21.547 | 15.264 | 12.61 | 12.67 | 12.459 | 10.623 | 10.507 | 10.4 | 10.2 | 9.0 | 6.494 | 6.562 | 7.955 | 8.094 | 8.141 | 7.495 | 9.174 | 8.65 | 8.731 | 8.706 | 9.509 | 9.538 | 8.615 | 8.245 | 10.109 | 7.026 | 5.079 | 5.301 | 8.244 | 10.504 | 9.549 | 9.394 | 8.521 | 8.295 | 6.871 | 6.266 | 10.234 | 13.396 | 9.09 | 5.848 |
| us-gaap:PropertyPlantAndEquipmentNet us-gaap:StatementGeographical us-gaap:NonUs | ▇▇█▄▂▁▅ | 331.6 | 329.9 | 336.4 | 307.5 | 297.4 | 291.4 | 314.1 | NA | NA | NA | 304.0 | NA | NA | NA | 330.4 | NA | NA | NA | 320.7 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:Goodwill | ████▇▇▇▆▆▆▅▅▅▅▅▆▂▂▂▂▂▂▁▂▂▆▆▅▅▄▄▂▁▁▁▃▃▂▂▂▁▁▁ | 2136.133 | 2124.089 | 2121.014 | 2097.645 | 2022.995 | 2006.465 | 2022.675 | 2002.909 | 1932.3 | 1927.028 | 1899.879 | 1912.139 | 1897.664 | 1902.871 | 1868.6 | 1937.045 | 1616.317 | 1608.384 | 1603.169 | 1612.238 | 1595.555 | 1595.4 | 1552.658 | 1596.931 | 1598.654 | 1922.485 | 1931.485 | 1880.09 | 1842.989 | 1832.047 | 1780.717 | 1650.012 | 1530.138 | 1535.795 | 1537.645 | 1670.816 | 1664.962 | 1646.623 | 1601.21 | 1586.253 | 1563.871 | 1564.393 | 1561.155 | NA | NA | NA |
| us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass us-gaap:LicensingAgreements | NA | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | NA | 0.0 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:IntangibleAssetsNetExcludingGoodwill | ▇▇██▇▇▇█▃▄▄▄▃▄▃▄▁▁▁▂▂▂▂▂▃▃▃▃▂▂▂▂▁▁▁▂▂▂▂▂▁▁▂ | 403.931 | 415.122 | 435.655 | 434.922 | 380.309 | 395.638 | 413.734 | 431.563 | 264.284 | 276.07 | 280.18 | 284.411 | 261.82 | 270.826 | 263.179 | 275.018 | 184.375 | 181.934 | 187.023 | 197.556 | 203.256 | 211.303 | 205.074 | 225.413 | 234.303 | 252.055 | 260.593 | 229.46 | 214.039 | 219.573 | 207.877 | 190.749 | 171.871 | 178.515 | 183.836 | 199.085 | 206.019 | 209.14 | 207.224 | 199.583 | 186.477 | 189.086 | 194.067 | NA | NA | NA |
| us-gaap:FiniteLivedIntangibleAssetsNet | NA | 412.122 | 432.655 | 431.922 | 377.309 | 392.638 | 410.734 | 428.563 | 261.284 | 273.07 | 277.18 | 281.411 | 258.82 | 270.826 | 263.179 | 275.018 | 184.375 | 181.934 | 187.023 | 197.556 | 203.256 | 211.303 | 205.074 | 225.413 | 234.303 | 247.555 | 256.093 | 224.96 | 209.539 | 215.073 | 203.377 | 186.249 | 167.371 | 174.015 | 179.336 | 194.585 | 201.519 | 204.64 | 202.724 | 195.083 | 181.977 | NA | NA | NA | NA | NA | |
| us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass pwr:Curriculum | NA | 8.804 | 9.12 | 8.907 | 9.202 | 9.498 | 9.016 | 9.607 | 8.1 | 8.339 | 8.576 | 8.376 | 8.601 | 8.826 | 0.0 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:CustomerRelationships | NA | 322.335 | 339.228 | 336.413 | 291.245 | 303.692 | 318.893 | 334.167 | 181.6 | 185.649 | 194.252 | 195.957 | 175.504 | 184.291 | 190.001 | 199.087 | 133.697 | 130.155 | 133.689 | 140.666 | 145.454 | 150.513 | 145.891 | 161.442 | 167.561 | 177.933 | 183.091 | 159.869 | 146.118 | 147.483 | 139.807 | 127.127 | 115.679 | 119.64 | 122.688 | 131.417 | 132.862 | 134.315 | 133.735 | 130.64 | 120.77 | NA | NA | NA | NA | NA | |
| us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:DevelopedTechnologyRights | NA | 0.556 | 0.592 | 0.896 | 1.267 | 1.627 | 2.037 | 2.214 | 2.593 | 7.42 | 3.307 | 3.678 | 4.08 | 4.495 | 4.918 | 5.366 | 5.787 | 6.213 | 6.649 | 7.143 | 7.641 | 8.139 | 8.599 | 9.161 | 9.747 | 10.068 | 10.378 | 10.658 | 11.196 | 11.701 | 11.823 | 11.744 | 12.273 | 12.851 | 13.414 | 13.936 | 12.894 | 13.377 | 10.555 | 10.871 | 11.188 | NA | NA | NA | NA | NA | |
| us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:NoncompeteAgreements | NA | 9.432 | 10.36 | 11.417 | 9.272 | 10.225 | 10.413 | 11.403 | 10.0 | 10.892 | 10.56 | 10.576 | 8.758 | 9.52 | 10.101 | 10.939 | 3.488 | 3.351 | 3.666 | 4.134 | 4.39 | 4.921 | 5.053 | 5.95 | 5.951 | 5.938 | 6.294 | 6.657 | 5.468 | 5.999 | 6.035 | 5.152 | 5.372 | 6.088 | 6.7 | 7.962 | 8.79 | 9.369 | 9.81 | 10.58 | 8.755 | NA | NA | NA | NA | NA | |
| us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:OrderOrProductionBacklog | NA | 3.244 | 4.293 | 5.391 | 2.403 | 2.814 | 3.124 | 3.53 | 0.823 | 1.432 | 0.986 | 1.581 | 0.887 | 1.206 | 0.419 | 0.722 | 0.672 | 0.925 | 1.151 | 2.497 | 2.537 | 3.662 | 3.864 | 5.902 | 7.721 | 10.692 | 12.944 | 7.159 | 9.384 | 12.279 | 9.598 | 9.604 | 5.36 | 6.264 | 6.989 | 11.387 | 17.036 | 19.037 | 20.626 | 15.446 | 15.391 | NA | NA | NA | NA | NA | |
| us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass us-gaap:TradeNames | NA | 67.751 | 69.062 | 68.898 | 63.92 | 64.782 | 67.251 | 67.642 | 58.168 | 59.338 | 59.499 | 61.243 | 60.99 | 62.488 | 57.74 | 58.904 | 40.731 | 41.29 | 41.868 | 43.116 | 43.234 | 44.068 | 41.667 | 42.958 | 43.323 | 42.924 | 43.386 | 40.617 | 37.373 | 37.611 | 36.114 | 32.622 | 28.687 | 29.172 | 29.545 | 29.883 | 29.937 | 28.542 | 27.713 | 27.546 | 25.873 | NA | NA | NA | NA | NA | |
| us-gaap:OperatingLeaseRightOfUseAsset | ▁▃▃▅▆█▇█▇█ | 239.721 | 252.206 | 256.845 | 266.487 | 275.816 | 287.157 | 284.369 | 289.267 | 284.962 | 285.768 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:OtherAssetsNoncurrent | ██▆▆▅▅▅▆▆▄▄▄▃▃▃▃▂▂▁▁▁▁▁▁▁▁▁▃▄▄▄▅▃▃▂▃▃▂▂▂▂▁▁ | 600.819 | 576.975 | 435.713 | 412.49 | 386.068 | 392.648 | 393.264 | 449.218 | 433.872 | 292.092 | 293.592 | 265.608 | 230.934 | 221.091 | 189.866 | 223.486 | 145.12 | 116.219 | 101.028 | 95.636 | 93.033 | 86.558 | 76.333 | 62.915 | 99.79 | 98.557 | 85.842 | 195.138 | 297.244 | 290.887 | 285.725 | 363.191 | 205.883 | 182.871 | 171.566 | 191.896 | 185.084 | 143.786 | 153.83 | 144.638 | 127.36 | 98.229 | 88.858 | NA | NA | NA |
| 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent | ▇▇▇▇▆▆▇█▆▆▆▆▅▅▅▆▄▄▄▄▃▃▃▄▄▄▄▄▃▃▃▃▂▃▃▃▂▂▂▂▁▁▁ | 1535.334 | 1506.025 | 1509.794 | 1543.842 | 1317.976 | 1360.007 | 1489.559 | 1648.079 | 1289.393 | 1238.727 | 1314.52 | 1340.882 | 1178.983 | 1040.661 | 1057.46 | 1214.745 | 969.654 | 995.914 | 922.819 | 928.487 | 811.521 | 791.214 | 782.134 | 938.535 | 875.152 | 874.627 | 877.336 | 884.168 | 734.596 | 772.185 | 802.18 | 757.267 | 611.997 | 666.65 | 707.285 | 771.506 | 635.469 | 580.834 | 618.925 | 527.94 | 410.262 | 394.849 | 415.947 | NA | NA | NA |
| us-gaap:AccruedIncomeTaxesCurrent | NA | NA | 32.315 | NA | NA | NA | 58.353 | NA | NA | NA | 13.094 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:ContractWithCustomerLiabilityCurrent | ▄▄▅▅█▇█▆▃▁▂ | 503.219 | 499.527 | 528.864 | 537.048 | 613.188 | 591.087 | 606.146 | 540.187 | 471.214 | 403.372 | 425.961 | NA | NA | NA | 433.387 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:DebtCurrent | ▂▂▂▂████▆▅▇▃▂▁▁▁▁▁▂▁▁▁▂▁▁▂▂ | 11.176 | 10.709 | 14.764 | 9.221 | 71.837 | 73.426 | 74.869 | 75.751 | 52.861 | 44.345 | 65.646 | 22.811 | 15.499 | 2.775 | 1.22 | 2.804 | 1.375 | 3.99 | 7.563 | 5.061 | 5.603 | 4.154 | 7.067 | 2.35 | 2.638 | 9.44 | 8.876 | NA | NA | NA | 1.181 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LiabilitiesCurrent | ▇▇▇▇▇▇██▆▆▆▆▆▅▅▅▄▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▃▂▂▂▂▁▁▁ | 2131.133 | 2100.06 | 2138.556 | 2178.273 | 2093.359 | 2115.909 | 2263.049 | 2357.523 | 1906.233 | 1778.737 | 1806.127 | 1816.184 | 1690.565 | 1549.639 | 1492.067 | 1592.492 | 1286.016 | 1264.738 | 1205.228 | 1245.908 | 1208.089 | 1235.911 | 1203.744 | 1340.538 | 1179.148 | 1124.31 | 1137.325 | 1128.127 | 967.196 | 982.475 | 1043.52 | 964.787 | 800.415 | 829.886 | 881.179 | 925.352 | 783.971 | 762.656 | 781.076 | 651.708 | 503.96 | 482.711 | 500.395 | NA | NA | NA |
| us-gaap:LongTermDebtCurrent | ▂▂▂▂████▄▄▄▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁ | 11.176 | 10.709 | 10.531 | 6.334 | 70.076 | 70.048 | 68.327 | 68.129 | 34.047 | 33.081 | 32.224 | 2.467 | 2.577 | 2.775 | 1.22 | 2.804 | 1.375 | 3.99 | 4.828 | 5.061 | 5.603 | 4.154 | 2.238 | 2.35 | 2.638 | 5.306 | 3.82 | NA | NA | NA | 1.181 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:OperatingLeaseLiabilityCurrent | ▁▂▃▅▆▇▇██▇ | 81.404 | 83.799 | 85.134 | 88.162 | 90.358 | 91.389 | 92.475 | 93.506 | 92.765 | 92.293 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:OtherAccruedLiabilitiesCurrent | ▆█▁ | 255.723 | 310.524 | 132.913 | NA | NA | NA | 107.413 | NA | NA | NA | 139.138 | NA | NA | NA | 99.622 | NA | NA | NA | 81.998 | NA | NA | NA | 97.534 | NA | NA | NA | 100.637 | NA | NA | NA | 81.902 | NA | NA | NA | 64.215 | NA | NA | NA | 45.854 | NA | NA | NA | 37.529 | NA | NA | NA |
| 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:LongTermDebtAndCapitalLeaseObligations | ▄▄▁▁▃█▃ | 1353.542 | 1347.56 | 1174.294 | 1202.425 | 1315.556 | 1589.318 | 1292.195 | NA | NA | NA | 1040.532 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | 0.0 | NA | NA | NA | 0.0 | NA | NA | NA |
| us-gaap:DeferredIncomeTaxLiabilitiesNet | ▂▁▁▃▄▄▄██▆▄▄▃▃▂▄ | 187.582 | 170.059 | 166.407 | 206.28 | 220.689 | 217.778 | 214.779 | 279.858 | 276.574 | 253.164 | 219.115 | 209.475 | 196.521 | 196.892 | 179.381 | 211.983 | NA | NA | 192.834 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:MinorityInterest | ▂▃▃▂▂▂▂▁▁▁▁▁▂▂▂▂▂▂▂▂▂▂▁▇▆▆▅█▇▅▄▄▃▂▃▄▅▄▄▄▂▂▁ | 3.062 | 5.22 | 4.791 | 3.616 | 3.573 | 4.686 | 3.539 | 1.801 | 1.336 | 1.313 | 1.294 | 1.416 | 2.8 | 3.6 | 4.058 | 2.701 | 2.608 | 2.468 | 3.275 | 2.649 | 2.851 | 2.684 | 2.321 | 14.542 | 13.474 | 13.265 | 11.067 | 17.594 | 15.227 | 10.871 | 7.131 | 8.321 | 5.321 | 4.69 | 5.368 | 7.345 | 9.62 | 9.108 | 7.311 | 8.3 | 4.694 | 2.653 | 1.364 | NA | NA | NA |
| us-gaap:OtherLiabilitiesNoncurrent | ▇▇▇█▆▄▄▄▆▆█▇▆▇▅▅▂▂▁▃▃▂▁▁▁▃▂▂▃▂▂▂▂▂▂▃▃▃▃▂▂▂▂ | 392.265 | 383.564 | 391.221 | 397.94 | 349.724 | 309.944 | 311.307 | 310.129 | 353.282 | 357.084 | 404.56 | 388.395 | 369.089 | 377.111 | 342.356 | 345.332 | 267.491 | 262.482 | 259.733 | 287.235 | 284.036 | 276.376 | 260.129 | 254.685 | 249.906 | 290.96 | 276.154 | 278.194 | 283.235 | 273.196 | 264.15 | 265.533 | 266.21 | 266.419 | 262.612 | 284.323 | 285.952 | 290.1 | 295.131 | 277.588 | 274.544 | 267.886 | 261.698 | NA | NA | NA |
| us-gaap:OperatingLeaseLiabilityNoncurrent | ▁▃▄▅▆█▇▇▆▇ | 166.28 | 176.008 | 178.822 | 185.003 | 192.3 | 200.817 | 196.521 | 197.896 | 192.197 | 193.475 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo | ▂▁█▇ | 55.09 | 52.368 | 68.284 | 65.176 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree | ▂▁█▇ | 34.195 | 32.349 | 47.872 | 44.619 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour | ▂▁█▆ | 22.64 | 21.287 | 29.362 | 27.344 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive | NA | NA | 18.685 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive | NA | NA | 30.311 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:StockholdersEquity | █▇▇▆▅▄▆▅▄▄▄▅▄▄▄▄▃▃▂▂▂▁▁▂▆▇██▇▇▇▆▅▅▄▄▃▃▂▂▂▂▂ | 4486.732 | 4374.943 | 4344.181 | 4151.95 | 3914.429 | 3790.492 | 4050.292 | 3907.406 | 3774.923 | 3723.744 | 3604.159 | 3822.818 | 3690.66 | 3643.352 | 3791.571 | 3727.53 | 3506.723 | 3396.343 | 3339.427 | 3273.936 | 3200.323 | 3170.545 | 3085.494 | 3189.372 | 4196.244 | 4297.488 | 4514.473 | 4471.037 | 4385.86 | 4305.805 | 4234.188 | 4015.933 | 3882.518 | 3826.131 | 3766.548 | 3662.899 | 3536.534 | 3461.606 | 3381.952 | 3294.697 | 3298.587 | 3357.125 | 3365.555 | NA | NA | NA |
| us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | █▇▇▆▅▄▆▅▄▄▄▅▄▄▄▄▃▃▂▂▂▁▁▂▆▇██▇▇▇▆▅▅▄▄▃▃▂▂▂▂▂ | 4489.794 | 4380.163 | 4348.972 | 4155.566 | 3918.002 | 3795.178 | 4053.831 | 3909.207 | 3776.259 | 3725.057 | 3605.453 | 3824.234 | 3693.465 | 3646.965 | 3795.629 | 3730.231 | 3509.331 | 3398.811 | 3342.702 | 3276.585 | 3203.174 | 3173.229 | 3087.815 | 3203.914 | 4209.718 | 4310.753 | 4525.54 | 4488.631 | 4401.087 | 4316.676 | 4241.319 | 4024.254 | 3887.839 | 3830.821 | 3771.916 | 3670.244 | 3546.154 | 3470.714 | 3389.263 | 3302.997 | 3303.281 | 3359.778 | 3366.919 | NA | NA | NA |
| us-gaap:CommonStockValue | ▄▄▄ | 0.002 | 0.002 | 0.002 | NA | NA | NA | NA | NA | NA | NA | NA | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.001 | 0.001 | 0.001 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | NA | NA | NA |
| us-gaap:AdditionalPaidInCapitalCommonStock | ▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁██▇▇▇███▇▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆ | 2208.905 | 2183.728 | 2170.026 | 2130.057 | 2063.1 | 2040.383 | 2024.61 | 2014.838 | 1999.462 | 1984.505 | 1967.354 | 1955.801 | 1934.826 | 1920.897 | 1889.356 | 1878.04 | 1785.194 | 1764.374 | 1749.306 | 3689.171 | 3676.91 | 3516.239 | 3497.74 | 3489.627 | 3619.922 | 3609.574 | 3592.906 | 3517.769 | 3477.074 | 3463.181 | 3416.585 | 3338.978 | 3311.517 | 3298.026 | 3287.086 | 3276.642 | 3268.915 | 3244.875 | 3216.206 | 3201.121 | 3173.25 | 3166.813 | 3162.779 | NA | NA | NA |
| us-gaap:RetainedEarningsAccumulatedDeficit | ███▇▇▇▇▆▆▆▆▆▆▅▅▅▅▅▅▄▄▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁ | 3454.682 | 3346.299 | 3264.967 | 3103.849 | 2948.18 | 2881.416 | 2854.271 | 2743.498 | 2612.994 | 2591.883 | 2477.291 | 2425.832 | 2301.281 | 2226.916 | 2191.059 | 2077.498 | 1988.185 | 1924.348 | 1876.081 | 1788.498 | 1714.756 | 1698.194 | 1677.698 | 1682.772 | 1466.384 | 1420.275 | 1366.791 | 1300.215 | 1205.567 | 1124.485 | 1070.077 | 903.38 | 810.474 | 740.237 | 668.156 | 569.17 | 472.772 | 407.234 | 361.527 | 295.213 | 243.219 | 211.418 | 229.012 | NA | NA | NA |
| us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax | ▃▃▃▂▂▁▃▂▂▂▂▃▃▃▃▄▃▂▂▃▃▃▂▂▄▃▅▆▇▆▇▇▇███▇██▇███ | -216.563 | -224.458 | -232.997 | -274.342 | -290.049 | -324.786 | -241.818 | -264.113 | -251.329 | -267.201 | -286.048 | -237.694 | -248.532 | -228.409 | -203.395 | -192.187 | -231.167 | -257.852 | -271.673 | -242.825 | -231.02 | -234.103 | -294.689 | -264.844 | -197.339 | -212.244 | -123.29 | -73.944 | -23.875 | -55.219 | -37.236 | -11.319 | -24.439 | 0.71 | 14.453 | 19.771 | -2.522 | 12.033 | 0.71 | -5.528 | 23.117 | 25.3 | 14.122 | NA | NA | NA |
| us-gaap:TreasuryStockValue | ▄▄▄▄▄▄▃▃▃▃▃▂▂▂▁▁▁▁▁██▇▇▇▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁ | 960.294 | 930.628 | 857.817 | 807.616 | 806.804 | 806.523 | 586.773 | 586.819 | 586.206 | 585.445 | 554.44 | 321.123 | 296.917 | 276.054 | 85.451 | 35.823 | 35.49 | 34.528 | 14.288 | 1960.91 | 1960.325 | 1809.787 | 1795.257 | 1718.185 | 692.725 | 520.119 | 321.936 | 273.005 | 272.908 | 226.644 | 215.24 | 215.108 | 215.036 | 212.844 | 203.149 | 202.686 | 202.633 | 202.538 | 196.493 | 196.111 | 141.001 | 46.408 | 40.36 | NA | NA | NA |
| us-gaap:MinorityInterest | ▂▃▃▂▂▂▂▁▁▁▁▁▂▂▂▂▂▂▂▂▂▂▁▇▆▆▅█▇▅▄▄▃▂▃▄▅▄▄▄▂▂▁ | 3.062 | 5.22 | 4.791 | 3.616 | 3.573 | 4.686 | 3.539 | 1.801 | 1.336 | 1.313 | 1.294 | 1.416 | 2.8 | 3.6 | 4.058 | 2.701 | 2.608 | 2.468 | 3.275 | 2.649 | 2.851 | 2.684 | 2.321 | 14.542 | 13.474 | 13.265 | 11.067 | 17.594 | 15.227 | 10.871 | 7.131 | 8.321 | 5.321 | 4.69 | 5.368 | 7.345 | 9.62 | 9.108 | 7.311 | 8.3 | 4.694 | 2.653 | 1.364 | NA | NA | NA |
| us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders | ▄▃▃▃▄▄▃▃▃▃▄▄▃▃▃▃▃▃▃▃▃▃█▄▄▄▇▄▃▃▅▄▄▅▅▅▄▄▁▃▃ | 4.121 | 1.129 | 0.704 | 0.744 | 1.962 | 1.963 | 0.426 | 0.489 | 1.092 | 0.528 | 1.138 | 1.3 | 0.7 | 1.0 | 0.2 | 0.4 | 0.4 | 1.0 | 0.161 | 0.6 | 0.0 | 0.0 | 14.728 | 1.5 | 2.5 | 2.5 | 10.932 | 3.0 | 0.0 | 0.5 | 5.825 | 2.5 | 3.9 | 5.5 | 5.0 | 6.733 | 3.7 | 3.7 | -6.425 | 0.0 | -0.471 | NA | NA | NA | NA | NA |
| 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:NetCashProvidedByUsedInOperatingActivities | ▄▃▅▃▇▄█▃▁▁▃▂▄▂▄▄ | 188.948 | 125.613 | 276.09 | 114.859 | 497.479 | 227.549 | 626.798 | 91.167 | -108.664 | -82.75 | 137.172 | 39.104 | 156.52 | 25.993 | 197.195 | 173.567 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | -59.77 | 86.299 | -60.218 | 125.275 | 40.785 | 56.158 | -4.188 | 261.59 | -54.707 | 28.539 | 3.626 |
| us-gaap:NetCashProvidedByUsedInInvestingActivities | ▇▅▆▄█▇█▂▇▆▇▆▇▇█▁ | -96.371 | -222.806 | -143.021 | -230.555 | -36.614 | -89.133 | -10.472 | -391.797 | -68.171 | -147.156 | -80.987 | -136.431 | -93.354 | -91.898 | -6.52 | -451.549 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | -70.271 | -119.386 | -80.955 | -64.44 | -96.668 | -85.814 | -34.295 | -161.463 | -24.527 | -24.186 | -42.867 |
| us-gaap:NetCashProvidedByUsedInFinancingActivities | ▅▆▄▄▃▆▁█▇▇▅▆▅▆▄█ | -81.753 | 112.989 | -166.151 | -198.504 | -310.636 | 73.926 | -531.062 | 307.111 | 165.378 | 236.26 | -89.43 | 90.963 | -44.822 | 26.719 | -142.27 | 270.133 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | 79.836 | 32.797 | 0.899 | -5.189 | -60.481 | -95.387 | 2.324 | -0.984 | -0.022 | -143.564 | -1.135 |
| us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect | ▅▅▅▁▇█▆▅▅▅▅▅▅▅▆▅▅▅ | 12.1 | 15.807 | -32.294 | -313.751 | 151.215 | 211.893 | 85.234 | 6.394 | -11.375 | 6.236 | -34.918 | -6.563 | 19.457 | -38.495 | 48.541 | -7.374 | -4.924 | -6.878 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:DeferredIncomeTaxExpenseBenefit | ▅▅▂▃▄▅▁▅▆▆█▄▄▆▂▄▅▅▅▃▄▅▄▄▅▅▇▄▄▅▄▄▅▄▅▅▅▅▄▅▄▅▅▆▄▅ | 14.253 | 2.494 | -40.79 | -17.443 | -5.993 | 4.21 | -56.217 | 4.167 | 19.573 | 24.558 | 55.86 | -7.391 | -2.872 | 16.377 | -33.78 | -1.98 | 3.666 | -0.036 | 6.543 | -17.096 | -7.858 | 2.716 | -12.851 | -7.544 | 0.28 | 3.495 | 38.529 | -10.613 | -2.338 | 8.086 | -5.963 | -15.481 | 6.096 | -1.122 | 10.496 | 9.118 | 1.298 | 1.621 | -14.758 | 11.683 | -1.391 | 11.483 | 9.378 | 21.129 | -6.007 | 11.93 |
| us-gaap:IncreaseDecreaseInInventories | ▇▆▅▄▅▆▄▅▄▁█▇▄█▅▄▆▆▆█▆▅▇▇▇▆▅▆▆▆▅▅▆▆▄▅▃▅▅▇▇▆▆▇▇▆ | 5.709 | 0.435 | -3.073 | -8.655 | -2.5 | 4.368 | -8.57 | -1.511 | -13.091 | -28.996 | 14.29 | 8.436 | -8.277 | 13.682 | -5.383 | -13.525 | 3.529 | 1.269 | -0.219 | 12.405 | 2.256 | -4.537 | 10.928 | 9.605 | 9.869 | 3.122 | -1.698 | -1.058 | 4.858 | 1.923 | -3.486 | -5.396 | 3.393 | -0.497 | -8.632 | -2.003 | -14.435 | -1.365 | -2.916 | 11.15 | 9.15 | 1.145 | 4.199 | 5.693 | 7.583 | -0.348 |
| us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet | ▂▂▂▂▂▂▂▂█▂▂▂▂▁▁▂▁▁ | 0.978 | 8.2 | 2.032 | 7.813 | 6.591 | 5.662 | 0.945 | 4.957 | 123.795 | 5.553 | 3.062 | 2.291 | 8.642 | -2.663 | -5.045 | 6.621 | -12.388 | -7.046 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:NetCashProvidedByUsedInOperatingActivities | ▄▃▅▃▇▄█▃▁▁▃▂▄▂▄▄ | 188.948 | 125.613 | 276.09 | 114.859 | 497.479 | 227.549 | 626.798 | 91.167 | -108.664 | -82.75 | 137.172 | 39.104 | 156.52 | 25.993 | 197.195 | 173.567 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | -59.77 | 86.299 | -60.218 | 125.275 | 40.785 | 56.158 | -4.188 | 261.59 | -54.707 | 28.539 | 3.626 |
| us-gaap:NetIncomeLoss | ▅▄██▃▂▅▆▁▆▂▆ | 117.033 | 89.761 | 170.051 | 162.913 | 73.946 | 38.686 | 118.144 | 136.068 | 27.344 | 120.488 | 56.816 | 124.551 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:ProfitLoss | ▅▄▇▆▄▃▅▆▂▅▃▅▄▃▅▄▃▃▄▄▂▂▁█▃▃▄▄▄▃▇▄▄▄▅▄▄▃▄▃▃▁▃▃▂▂ | 118.971 | 91.319 | 171.961 | 163.7 | 74.795 | 41.503 | 120.299 | 137.022 | 28.459 | 121.035 | 57.791 | 124.899 | 74.706 | 38.611 | 115.576 | 89.849 | 64.36 | 48.44 | 88.358 | 74.152 | 16.729 | 20.859 | -4.882 | 218.956 | 49.565 | 58.185 | 70.975 | 100.015 | 85.444 | 58.648 | 171.317 | 98.409 | 74.726 | 76.857 | 102.009 | 100.856 | 69.797 | 49.994 | 70.808 | 55.6 | 34.313 | -16.305 | 34.434 | 63.7 | 33.323 | 24.1 |
| us-gaap:ShareBasedCompensation | ▆▄█▅▅▄▃▃▃▃▃▃▃▄▃▃▃▃▂▂▂▃▂▂▂▂▃▂▂▂▂▂▃▂▁▂▂▂▁▁▁▁▁▁▁▁ | 23.923 | 18.687 | 33.318 | 21.431 | 21.98 | 14.912 | 10.933 | 13.584 | 14.484 | 13.012 | 12.681 | 11.631 | 13.485 | 14.687 | 12.096 | 10.929 | 11.557 | 11.866 | 9.875 | 9.746 | 9.503 | 13.719 | 8.231 | 9.523 | 9.714 | 9.96 | 10.576 | 7.772 | 10.384 | 10.298 | 8.129 | 7.669 | 12.042 | 8.036 | 4.277 | 7.138 | 8.094 | 6.481 | 5.408 | 4.716 | 5.953 | 5.541 | 5.583 | 5.703 | 5.76 | 6.002 |
| 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:NetCashProvidedByUsedInInvestingActivities | ▇▅▆▄█▇█▂▇▆▇▆▇▇█▁ | -96.371 | -222.806 | -143.021 | -230.555 | -36.614 | -89.133 | -10.472 | -391.797 | -68.171 | -147.156 | -80.987 | -136.431 | -93.354 | -91.898 | -6.52 | -451.549 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | -70.271 | -119.386 | -80.955 | -64.44 | -96.668 | -85.814 | -34.295 | -161.463 | -24.527 | -24.186 | -42.867 |
| us-gaap:PaymentsToAcquirePropertyPlantAndEquipment | ▆▇█▃▃▅▄▅▆▅▅▆▇▅▆▅▄▃▅▁▄▃▂▃▅▅▆▆▆▆▃▃▇▄▃▅▃▁▂▂▃▂▁▁▂▂ | 74.898 | 83.486 | 93.015 | 50.78 | 48.148 | 68.109 | 54.117 | 66.244 | 72.775 | 68.626 | 70.86 | 74.144 | 81.784 | 66.807 | 76.373 | 62.997 | 58.257 | 47.024 | 68.131 | 35.874 | 60.855 | 47.695 | 41.001 | 47.97 | 62.493 | 66.168 | 74.797 | 79.857 | 75.404 | 71.418 | 50.318 | 51.074 | 81.743 | 57.637 | 49.09 | 71.056 | 49.975 | 35.344 | 39.236 | 43.077 | 52.204 | 37.488 | 35.609 | 31.674 | 37.361 | 43.799 |
| us-gaap:PaymentsToAcquireInvestments | ▁█▁▁▁▁▁▁▁▃▃▁▁▁▁▃ | 0.342 | 113.982 | 5.318 | 0.778 | 3.068 | 5.692 | 8.061 | 1.065 | 0.127 | 37.803 | 34.459 | 0.881 | 0.731 | 0.838 | 3.017 | 40.557 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | 36.112 | NA | NA | NA | NA | NA | NA | 4.0 | NA | NA | NA | NA | NA | NA |
| 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:NetCashProvidedByUsedInFinancingActivities | ▅▆▄▄▃▆▁█▇▇▅▆▅▆▄█ | -81.753 | 112.989 | -166.151 | -198.504 | -310.636 | 73.926 | -531.062 | 307.111 | 165.378 | 236.26 | -89.43 | 90.963 | -44.822 | 26.719 | -142.27 | 270.133 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | 79.836 | 32.797 | 0.899 | -5.189 | -60.481 | -95.387 | 2.324 | -0.984 | -0.022 | -143.564 | -1.135 |
| us-gaap:PaymentsOfDividendsCommonStock | ▇█▅▄▄▅▁▁▁▁ | 8.415 | 8.798 | 7.346 | 7.001 | 7.16 | 7.384 | 5.851 | 5.803 | 5.83 | 5.752 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:PaymentsForRepurchaseOfCommonStock | ▂▂▂▁▁▇▁▁▁▂█▂▁▆▃▁▁▁ | 29.449 | 19.474 | 47.249 | 0.0 | 0.0 | 200.0 | 0.0 | 0.0 | 0.159 | 19.933 | 226.491 | 26.755 | 15.993 | 173.913 | 50.0 | 0.0 | 0.0 | 0.0 | NA | NA | NA | NA | 76.789 | 1175.293 | 172.279 | 182.0 | 48.461 | 0.0 | 45.021 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | 55.081 | 94.466 | NA | NA | NA | NA | NA |
| 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType pwr:SeniorNotesDue2030,us-gaap:SeniorNotes | ▄ | 2.8999999999999998e-06 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 1000.0 | 1000.0 | 1000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 |
| Percentage of CommonStockValue | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 |
| Value | 139 | 139 | 138 | 137 | 137 | 142 | 142 | 142 | 142 | 141 | 148 | 149 | 149 | 153 | 144 | 152 |
| Percentage of SharesOutstanding | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2020-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 164 | 162 | 157 | 156 | 156 | 155 | 151 | 148 | 148 | 144 | 229 | 228 | 228 | 227 | 227 | 226 | 226 | 226 | 226 | 225 | 225 | 224 | 222 | 221 | 221 | 220 | 220 | 220 | 220 | 217 | 216 | 215 | 214 | 213 | 211 |
| Percentage of CommonStockSharesIssued | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2020-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 300 | 300 | 300 |
| Percentage of CommonStockSharesAuthorized | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2020-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 139 | 138 | 148 | 149 | 149 | 153 | 151 | 148 | 148 | 144 | 144 | 144 | 153 | 152 | 156 | 198 | 204 | 210 | 212 | 212 | 213 | 212 | 210 | 209 | 209 | 209 | 209 | 209 | 208 | 206 | 205 | 207 | 211 | 211 | 209 |
| Percentage of CommonStockSharesOutstanding | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 144 | 144 | 144 | 143 | 146 | 147 | 147 | 146 | 153 | 154 | 157 | 158 | 156 | 155 | 155 | 156 | 162 | 188 | 213 | 215 | 219 | 219 | 219 | 214 | 214 | 213 | 213 | 213 | 211 | 210 | 215 | 214 | 211 | 211 | 210 |
| Percentage of WeightedAverageNumberOfDilutedSharesOutstanding | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 140 | 140 | 140 | 139 | 144 | 145 | 145 | 145 | 152 | 153 | 156 | 157 | 155 | 155 | 155 | 156 | 162 | 188 | 213 | 215 | 219 | 219 | 219 | 214 | 214 | 213 | 213 | 212 | 211 | 210 | 214 | 214 | 209 | 209 | 208 |
| Percentage of WeightedAverageNumberOfSharesOutstandingBasic | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2016-12-31 | 2016-09-30 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 0.83 | 0.64 | 1.2 | 1.16 | 0.53 | 0.27 | 0.81 | 0.93 | 0.19 | 0.83 | 0.38 | 0.82 | 0.49 | 0.24 | 0.73 | 0.57 | 0.41 | 0.56 | 0.48 | 0.46 | 0.45 | 0.31 | 0.22 | 0.32 | 0.25 | 0.15 | -0.08 | 0.16 | 0.3 | 0.16 | 0.11 |
| Percentage of EarningsPerShareBasic | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2016-12-31 | 2016-09-30 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 0.81 | 0.62 | 1.17 | 1.13 | 0.52 | 0.26 | 0.8 | 0.92 | 0.19 | 0.82 | 0.38 | 0.81 | 0.48 | 0.24 | 0.72 | 0.56 | 0.41 | 0.56 | 0.48 | 0.46 | 0.45 | 0.31 | 0.22 | 0.32 | 0.25 | 0.15 | -0.08 | 0.16 | 0.3 | 0.16 | 0.11 |
| Percentage of EarningsPerShareDiluted | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 |
| Value | 3500000.0 | 4900000.0 | 4100000.0 | 2600000.0 | 1600000.0 | 1100000.0 | 1400000.0 | 800000.0 | 1100000.0 | 2600000.0 | 1000000.0 | 1200000.0 | 1500000.0 | 1300000.0 | 1900000.0 | 2300000.0 | 1200000.0 | 2700000.0 | 2100000.0 | 2000000.0 | 1400000.0 | 1500000.0 | 800000.0 | 700000.0 | 1200000.0 | 1300000.0 | 700000.0 | 1600000.0 | 900000.0 | 700000.0 | 1400000.0 | 600000.0 | 500000.0 | 600000.0 | 700000.0 | 500000.0 | 500000.0 | 400000.0 |
| Percentage of AllocatedShareBasedCompensationExpense | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 0.1 | 0.2 | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.1 | 0.1 | 0.0 | 0.1 | 0.0 | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pwr:RestrictedStockUnitsToBeSettledInCash | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 |
| Value | 124 | 98 | 211 | 178 | 108 | -44.282 | 140 | 123 | 43 | 139 | 8.462 | 135 | 54 | 12 | 102 | 128 | 90 | 62 | 58 | 61 | 19 | 81 | -34.918 | 148 | 61 | -35.47 | 17 | 44 | 112 | 36 | 140 | 106 | 45 | 58 | 93 | 118 | 50 | 57 | 72 | 23 | 29 | -6.416 | 42 | 64 | 30 |
| Percentage of ComprehensiveIncomeNetOfTax | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 4.2 | 3.6 | 7.3 | 5.9 | 4.3 | -1.6 | 4.5 | 3.7 | 1.5 | 5.0 | 0.3 | 4.5 | 2.0 | 0.5 | 4.1 | 4.9 | 4.1 | 2.9 | 2.8 | 3.0 | 1.1 | 4.7 | -1.8 | 7.7 | 3.3 | -1.9 | 0.8 | 2.1 | 6.0 | 2.1 | 7.7 | 6.4 | 3.1 | 3.7 | 5.6 | 7.0 | 3.4 | 4.0 | 4.8 | 1.9 | 2.9 | -0.8 | 3.8 | 5.4 | 3.5 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 |
| Value | 1.938 | 1.558 | 1.91 | 0.787 | 0.849 | 2.817 | 2.155 | 0.954 | 1.115 | 0.547 | 0.975 | 0.348 | 0.341 | 0.997 | 2.015 | 0.536 | 0.523 | 0.173 | 0.775 | 0.41 | 0.167 | 0.363 | 0.192 | 2.568 | 3.456 | 4.701 | 4.399 | 5.367 | 4.362 | 4.24 | 4.62 | 5.503 | 4.489 | 4.776 | 3.023 | 4.458 | 4.259 | 4.287 | 4.494 | 3.606 | 2.512 | 1.289 | 0.768 | 0.92 | 0.337 |
| Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.2 | 0.2 | 0.1 | 0.1 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 |
| Value | 126 | 99 | 213 | 179 | 109 | -41.465 | 142 | 124 | 44 | 139 | 9.437 | 135 | 54 | 13 | 104 | 128 | 91 | 62 | 59 | 62 | 19 | 81 | -34.726 | 151 | 64 | -30.769 | 21 | 49 | 116 | 40 | 145 | 111 | 49 | 63 | 96 | 123 | 55 | 61 | 77 | 26 | 32 | -5.127 | 42 | 65 | 30 |
| Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 4.2 | 3.7 | 7.3 | 5.9 | 4.4 | -1.5 | 4.6 | 3.7 | 1.6 | 5.0 | 0.3 | 4.5 | 2.1 | 0.6 | 4.2 | 4.9 | 4.1 | 2.9 | 2.8 | 3.1 | 1.1 | 4.8 | -1.8 | 7.8 | 3.4 | -1.6 | 1.1 | 2.3 | 6.3 | 2.3 | 8.0 | 6.8 | 3.4 | 4.0 | 5.8 | 7.3 | 3.6 | 4.3 | 5.1 | 2.2 | 3.2 | -0.6 | 3.9 | 5.4 | 3.5 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 |
| Value | 2552 | 2330 | 2446 | 2512 | 2150 | 2431 | 2669 | 2879 | 2519 | 2443 | 2692 | 2559 | 2322 | 2116 | 2155 | 2258 |
| Percentage of CostOfGoodsAndServicesSold | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 85.1 | 86.2 | 84.0 | 83.2 | 85.8 | 88.0 | 85.8 | 85.9 | 88.7 | 87.0 | 86.5 | 85.7 | 87.5 | 87.5 | 87.0 | 86.6 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 447 | 372 | 465 | 507 | 355 | 332 | 443 | 473 | 319 | 363 | 419 | 425 | 333 | 301 | 322 | 350 | 302 | 266 | 307 | 302 | 200 | 203 | 223 | 235 | 227 | 252 | 327 | 352 | 281 | 272 | 302 | 273 | 241 | 238 | 286 | 280 | 235 | 195 | 200 | 194 | 154 | 70 | 159 | 189 | 156 | 129 |
| Percentage of GrossProfit | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 14.9 | 13.8 | 16.0 | 16.8 | 14.2 | 12.0 | 14.2 | 14.1 | 11.3 | 13.0 | 13.5 | 14.3 | 12.5 | 12.5 | 13.0 | 13.4 | 13.7 | 12.2 | 14.6 | 14.8 | 11.2 | 11.9 | 11.7 | 12.1 | 12.2 | 13.4 | 15.9 | 16.3 | 15.1 | 15.4 | 16.7 | 16.6 | 16.4 | 15.0 | 17.1 | 16.6 | 15.5 | 13.7 | 13.3 | 15.6 | 15.2 | 8.4 | 14.4 | 15.8 | 17.9 | 17.3 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 |
| Value | 159 | 105 | 171 | 234 | 107 | 57 | 145 | 191 | 69 | 164 | 128 | 168 | 104 | 56 | 45 | 132 | 104 | 71 | 113 | 128 | 31 | 34 | 0.504 | 78 | 67 | 92 | 107 | 142 | 131 | 91 | 262 | 140 | 116 | 118 | 128 | 146 | 97 | 78 | 69 | 92 |
| Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 5.3 | 3.9 | 5.9 | 7.8 | 4.3 | 2.1 | 4.7 | 5.7 | 2.4 | 5.9 | 4.1 | 5.6 | 3.9 | 2.3 | 1.9 | 5.1 | 4.8 | 3.3 | 5.4 | 6.3 | 1.8 | 2.0 | 0.0 | 4.0 | 3.6 | 4.9 | 5.2 | 6.5 | 7.1 | 5.2 | 14.4 | 8.6 | 7.9 | 7.5 | 7.7 | 8.7 | 6.4 | 5.5 | 4.6 | 7.4 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 40 | 13 | -0.239 | 70 | 32 | 16 | 25 | 54 | 41 | 43 | 71 | 43 | 29 | 18 | -69.651 | 42 | 40 | 22 | 24 | 54 | 14 | 13 | 2.898 | 32 | 31 | 34 | 36 | 42 | 46 | 33 | 91 | 42 | 42 | 41 | 43 | 45 | 40 | 29 | 21 | 37 | 23 | -10.645 | 20 | 31 | 22 | 16 |
| Percentage of IncomeTaxExpenseBenefit | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 1.4 | 0.5 | -0.0 | 2.3 | 1.3 | 0.6 | 0.8 | 1.6 | 1.4 | 1.6 | 2.3 | 1.4 | 1.1 | 0.7 | -2.8 | 1.6 | 1.8 | 1.0 | 1.2 | 2.7 | 0.8 | 0.8 | 0.2 | 1.7 | 1.7 | 1.8 | 1.8 | 1.9 | 2.5 | 1.9 | 5.0 | 2.6 | 2.9 | 2.6 | 2.6 | 2.7 | 2.7 | 2.1 | 1.4 | 3.0 | 2.3 | -1.3 | 1.8 | 2.6 | 2.6 | 2.1 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 62 | 4.602 | 81 | 86 | 9.392 | 54 | 7.196 | 40 | 60 | 8.193 | 21 | 38 | 34 | 17 | 7.223 | 3.616 | 93 | 8.217 | 21 | 27 | 6.486 | 24 | 56 | 37 | 12 | 52 | 15 | 73 | 87 | 59 | 36 | 65 | 91 | 266 | -40.255 | 23 | 47 | 6.416 | 0.88 | 3.235 | -2.775 | -198.993 | 24 | 31 | -34.403 |
| Percentage of IncomeTaxesPaid | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 2.1 | 0.2 | 2.8 | 2.9 | 0.4 | 2.0 | 0.2 | 1.2 | 2.1 | 0.3 | 0.7 | 1.3 | 1.3 | 0.7 | 0.3 | 0.1 | 4.2 | 0.4 | 1.1 | 1.5 | 0.4 | 1.3 | 2.9 | 2.0 | 0.7 | 2.5 | 0.7 | 3.9 | 5.0 | 3.3 | 2.2 | 4.5 | 5.8 | 15.9 | -2.4 | 1.5 | 3.3 | 0.4 | 0.1 | 0.3 | -0.3 | -18.0 | 2.0 | 3.6 | -4.6 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 13 | 12 | 11 | 11 | 8.654 | 14 | 18 | 18 | 15 | 13 | 11 | 9.219 | 9.178 | 6.778 | 6.652 | 6.058 | 4.271 | 3.965 | 3.989 | 3.726 | 3.583 | 3.589 | 2.928 | 2.021 | 1.675 | 1.4 | 1.334 | 1.321 | 1.128 | 0.982 | 1.188 | 0.475 | 0.503 | 0.502 | 1.236 | 0.967 | 0.959 | 0.584 | 0.573 | 0.738 | 0.255 | 0.255 | 0.253 | 0.269 | 1.527 | 2.864 |
| Percentage of InterestExpense | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 0.4 | 0.5 | 0.4 | 0.4 | 0.3 | 0.5 | 0.6 | 0.5 | 0.6 | 0.5 | 0.4 | 0.3 | 0.3 | 0.3 | 0.3 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 0.4 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 |
| Value | 18 | 4.039 | 1.438 | 8.443 | 8.989 | 13 | 19 | 16 | 15 | 13 | 10 | 9.279 | 8.772 | 5.96 | 6.059 | 5.808 |
| Percentage of InterestPaidNet | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 0.6 | 0.1 | 0.0 | 0.3 | 0.4 | 0.5 | 0.6 | 0.5 | 0.6 | 0.5 | 0.4 | 0.3 | 0.3 | 0.2 | 0.2 | 0.2 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 |
| Value | 117 | 89 | 170 | 162 | 73 | 38 | 118 | 136 | 27 | 120 | 56 | 124 |
| Percentage of NetIncomeLoss | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 3.9 | 3.3 | 5.8 | 5.4 | 3.0 | 1.4 | 3.8 | 4.1 | 1.0 | 4.3 | 1.8 | 4.2 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 1.938 | 1.558 | 1.91 | 0.787 | 0.849 | 2.817 | 2.155 | 0.954 | 1.115 | 0.547 | 0.975 | 0.348 | 0.3 | 1.0 | 2.015 | 0.5 | 0.5 | 0.173 | 0.775 | 0.41 | 0.167 | 0.363 | 0.192 | 2.568 | 3.456 | 4.701 | 4.399 | 5.367 | 4.362 | 4.24 | 4.62 | 5.503 | 4.489 | 4.776 | 3.023 | 4.458 | 4.259 | 4.287 | 4.494 | 3.606 | 2.512 | 1.289 | 0.768 | 0.92 | 0.337 | 0.356 |
| Percentage of NetIncomeLossAttributableToNoncontrollingInterest | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.2 | 0.2 | 0.1 | 0.1 | 0.0 | 0.0 |
| Period End | 2021-03-31 | 2020-03-31 |
| Value | 1.6 | 2.8 |
| Percentage of NetIncomeLossAttributableToNoncontrollingInterest | 102.7 | 99.4 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 0.1 | 0.1 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 117 | 89 | 170 | 162 | 73 | 38 | 118 | 136 | 27 | 120 | 56 | 124 | 74 | 37 | 113 | 89 | 63 | 48 | 87 | 73 | 16 | 20 | -5.074 | 216 | 46 | 53 | 66 | 94 | 81 | 54 | 166 | 92 | 70 | 72 | 98 | 96 | 65 | 45 | 66 | 51 | 31 | -17.594 | 33 | 62 | 32 | 23 |
| Percentage of NetIncomeLossAvailableToCommonStockholdersBasic | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 3.9 | 3.3 | 5.8 | 5.4 | 3.0 | 1.4 | 3.8 | 4.1 | 1.0 | 4.3 | 1.8 | 4.2 | 2.8 | 1.6 | 4.6 | 3.4 | 2.9 | 2.2 | 4.2 | 3.6 | 0.9 | 1.2 | -0.3 | 11.2 | 2.5 | 2.8 | 3.2 | 4.4 | 4.3 | 3.1 | 9.2 | 5.6 | 4.8 | 4.5 | 5.9 | 5.7 | 4.3 | 3.2 | 4.4 | 4.2 | 3.1 | -2.1 | 3.0 | 5.2 | 3.8 | 3.2 |
| Period End | 2021-06-30 | 2020-06-30 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2010-12-31 | 2010-09-30 | 2010-06-30 |
| Value | 117 | 73 | 66 | 51 | 31 | 33 | 62 | 32 |
| Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 3.9 | 3.0 | 4.4 | 4.2 | 3.1 | 3.0 | 5.2 | 3.8 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 161 | 113 | 175 | 242 | 112 | 80 | 147 | 209 | 78 | 119 | 149 | 192 | 123 | 75 | 53 | 140 | 109 | 75 | 117 | 130 | 35 | 37 | 3.624 | 80 | 68 | 93 | 108 | 142 | 133 | 90 | 149 | 141 | 117 | 119 | 128 | 145 | 111 | 79 | 92 | 93 | 57 | -26.916 | 54 | 94 | 64 | 42 |
| Percentage of OperatingIncomeLoss | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 5.4 | 4.2 | 6.0 | 8.0 | 4.5 | 2.9 | 4.7 | 6.2 | 2.8 | 4.3 | 4.8 | 6.5 | 4.6 | 3.1 | 2.2 | 5.4 | 5.0 | 3.4 | 5.6 | 6.4 | 2.0 | 2.2 | 0.2 | 4.2 | 3.7 | 5.0 | 5.3 | 6.6 | 7.2 | 5.1 | 8.2 | 8.6 | 7.9 | 7.5 | 7.7 | 8.6 | 7.3 | 5.6 | 6.1 | 7.5 | 5.7 | -3.2 | 4.9 | 7.8 | 7.4 | 5.7 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 |
| Value | -99.185 | -94.119 | -111.119 | -102.381 | -92.23 | -79.298 | -102.465 | -98.722 | -84.298 | -82.829 | -66.976 | -82.687 | -66.801 | -75.731 | -120.812 | -68.134 |
| Percentage of OperatingIncomeLoss | -61.4 | -82.8 | -63.3 | -42.3 | -81.7 | -98.2 | -69.5 | -47.1 | -107.3 | -69.3 | -44.8 | -42.9 | -54.3 | -100.7 | -225.6 | -48.5 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | -3.3 | -3.5 | -3.8 | -3.4 | -3.7 | -2.9 | -3.3 | -2.9 | -3.0 | -3.0 | -2.2 | -2.8 | -2.5 | -3.1 | -4.9 | -2.6 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateNonSegment | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 236 | 199 | 245 | 268 | 183 | 128 | 160 | 175 | 92 | 161 | 162 | 179 | 146 | 140 |
| Percentage of OperatingIncomeLoss | 146.5 | 175.0 | 139.8 | 110.8 | 162.9 | 159.5 | 109.2 | 83.9 | 118.3 | 135.3 | 108.5 | 93.1 | 118.7 | 187.3 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 7.9 | 7.4 | 8.4 | 8.9 | 7.3 | 4.7 | 5.2 | 5.2 | 3.3 | 5.8 | 5.2 | 6.0 | 5.5 | 5.8 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments pwr:ElectricPowerInfrastructureServices | 11.0 | 9.7 | 0.0 | 12.7 | 10.3 | 7.3 | 0.0 | 9.4 | 5.4 | 9.7 | 0.0 | 11.1 | 9.3 | 9.0 |
| Period End | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 76 | 21 | 31 | 88 | 132 | 69 | 40 | 54 | 96 | 43 | 10 |
| Percentage of OperatingIncomeLoss | 31.5 | 18.8 | 38.7 | 60.3 | 63.2 | 89.0 | 34.1 | 36.3 | 49.9 | 35.6 | 13.4 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 2.5 | 0.8 | 1.1 | 2.9 | 3.9 | 2.5 | 1.4 | 1.7 | 3.2 | 1.6 | 0.4 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments pwr:PipelineAndIndustrialInfrastructureServices | 8.4 | 3.0 | 3.1 | 0.0 | 9.0 | 6.3 | 3.6 | 0.0 | 7.0 | 4.0 | 1.2 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-06-30 | 2020-03-31 |
| Value | 23 | 8.813 | 21 | 31 |
| Percentage of OperatingIncomeLoss | 14.8 | 7.7 | 18.8 | 38.7 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 0.8 | 0.3 | 0.8 | 1.1 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments pwr:UndergroundUtilityAndInfrastructureSolutionsDivision | 2.8 | 1.4 | 3.0 | 3.1 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | -27.1 | -15.4 | -15.2 | -16.3 | -3.5 | -2.2 | -79.3 | -0.6 |
| Percentage of OperatingIncomeLoss | -15.4 | -6.4 | -13.5 | -20.2 | -2.4 | -1.1 | -100.9 | -0.5 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | -0.9 | -0.5 | -0.6 | -0.6 | -0.1 | -0.1 | -2.8 | -0.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:LatinAmerica pwr:ElectricPowerInfrastructureServices | 0.0 | -3080.0 | -633.3 | -346.8 | 0.0 | -7.8 | 381.2 | -2.2 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 |
| Value | 7.888 | 8.532 | 43 | 15 | 34 | -82.968 | 21 | -12.778 | 15 | 18 | -50.185 | 10 | -20.123 | -25.014 | -12.082 | 38 | 26 | 13 | -28.727 | -11.805 | 3.083 | 60 | -29.909 | -67.497 | 14 | -88.949 | -47.849 | -50.053 | 31 | -17.965 | -28.781 | 13 | -25.149 | -13.743 | -5.098 | 22 | -14.56 | 11 | 7.413 | -28.643 | -2.183 |
| Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 0.3 | 0.3 | 1.5 | 0.5 | 1.4 | -3.0 | 0.7 | -0.4 | 0.6 | 0.7 | -1.6 | 0.4 | -0.8 | -1.0 | -0.5 | 1.5 | 1.2 | 0.6 | -1.4 | -0.6 | 0.2 | 3.5 | -1.6 | -3.5 | 0.8 | -4.7 | -2.3 | -2.3 | 1.7 | -1.0 | -1.6 | 0.8 | -1.7 | -0.9 | -0.3 | 1.3 | -1.0 | 0.8 | 0.5 | -2.3 | -0.2 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 |
| Value | 7.895 | 8.539 | 41 | 15 | 34 | -82.968 | 22 | -12.784 | 15 | 18 | -48.354 | 10 | -20.123 | -25.014 | -11.208 | 38 | 26 | 13 | -28.848 | -11.805 | 3.083 | 60 | -29.844 | -67.506 | 14 | -88.954 | -49.346 | -50.069 | 31 | -17.983 | -25.917 | 13 | -25.149 | -13.743 | -5.318 | 22 | -14.555 | 11 | 6.236 | -28.643 | -2.183 |
| Percentage of OtherComprehensiveIncomeLossNetOfTax | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 0.3 | 0.3 | 1.4 | 0.5 | 1.4 | -3.0 | 0.7 | -0.4 | 0.6 | 0.7 | -1.6 | 0.4 | -0.8 | -1.0 | -0.5 | 1.5 | 1.2 | 0.6 | -1.4 | -0.6 | 0.2 | 3.5 | -1.6 | -3.5 | 0.8 | -4.7 | -2.4 | -2.3 | 1.7 | -1.0 | -1.4 | 0.8 | -1.7 | -0.9 | -0.3 | 1.3 | -1.0 | 0.8 | 0.4 | -2.3 | -0.2 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 7.895 | 8.539 | 15 | 34 | -82.968 | -12.784 | 15 | 18 | 10 | -20.123 | -25.014 |
| Percentage of OtherComprehensiveIncomeLossNetOfTax | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 0.3 | 0.3 | 0.5 | 1.4 | -3.0 | -0.4 | 0.6 | 0.7 | 0.4 | -0.8 | -1.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 7.895 | 8.539 | 15 | 34 | -82.968 | -12.784 | 15 | 18 | 10 | -20.123 | -25.014 |
| Percentage of OtherComprehensiveIncomeLossNetOfTax | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 0.3 | 0.3 | 0.5 | 1.4 | -3.0 | -0.4 | 0.6 | 0.7 | 0.4 | -0.8 | -1.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 8.471 | 3.672 | 6.188 | 2.931 | 3.247 | -9.827 | 17 | 0.717 | 6.521 | 58 | -9.314 | -15.498 | -10.426 | -11.975 | -1.164 | -2.371 | -1.079 | 0.239 | -0.062 | 0.841 | -0.725 | 0.262 | -0.415 | -1.07 | -0.134 | -0.212 | -0.134 | -0.378 | -1.233 | 0.643 | 0.555 | -0.824 | -0.353 | -0.513 | -1.344 | 1.138 | -0.31 | 0.165 | -0.164 | -0.528 | 0.199 | -0.065 | 0.304 | 0.479 | -0.479 | 0.371 |
| Percentage of OtherNonoperatingIncomeExpense | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 0.3 | 0.1 | 0.2 | 0.1 | 0.1 | -0.4 | 0.6 | 0.0 | 0.2 | 2.1 | -0.3 | -0.5 | -0.4 | -0.5 | -0.0 | -0.1 | -0.0 | 0.0 | -0.0 | 0.0 | -0.0 | 0.0 | -0.0 | -0.1 | -0.0 | -0.0 | -0.0 | -0.0 | -0.1 | 0.0 | 0.0 | -0.1 | -0.0 | -0.0 | -0.1 | 0.1 | -0.0 | 0.0 | -0.0 | -0.0 | 0.0 | -0.0 | 0.0 | 0.0 | -0.1 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 118 | 91 | 171 | 163 | 74 | 41 | 120 | 137 | 28 | 121 | 57 | 124 | 74 | 38 | 115 | 89 | 64 | 48 | 88 | 74 | 16 | 20 | -4.882 | 218 | 49 | 58 | 70 | 100 | 85 | 58 | 171 | 98 | 74 | 76 | 102 | 100 | 69 | 49 | 70 | 55 | 34 | -16.305 | 34 | 63 | 33 | 24 |
| Percentage of ProfitLoss | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 4.0 | 3.4 | 5.9 | 5.4 | 3.0 | 1.5 | 3.9 | 4.1 | 1.0 | 4.3 | 1.9 | 4.2 | 2.8 | 1.6 | 4.7 | 3.4 | 2.9 | 2.2 | 4.2 | 3.6 | 0.9 | 1.2 | -0.3 | 11.3 | 2.6 | 3.1 | 3.5 | 4.6 | 4.6 | 3.3 | 9.4 | 6.0 | 5.1 | 4.8 | 6.1 | 6.0 | 4.6 | 3.5 | 4.7 | 4.4 | 3.4 | -1.9 | 3.1 | 5.3 | 3.8 | 3.2 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 1.938 | 1.558 | 0.787 | 0.849 | 2.817 | 0.954 | 1.115 | 0.547 | 0.348 | 0.341 | 0.997 |
| Percentage of ProfitLoss | 1.6 | 1.7 | 0.5 | 1.1 | 6.8 | 0.7 | 3.9 | 0.5 | 0.3 | 0.5 | 2.6 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 0.1 | 0.1 | 0.0 | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 117 | 89 | 162 | 73 | 38 | 136 | 27 | 120 | 124 | 74 | 37 |
| Percentage of ProfitLoss | 98.4 | 98.3 | 99.5 | 98.9 | 93.2 | 99.3 | 96.1 | 99.5 | 99.7 | 99.5 | 97.4 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 3.9 | 3.3 | 5.4 | 3.0 | 1.4 | 4.1 | 1.0 | 4.3 | 4.2 | 2.8 | 1.6 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 117 | 89 | 162 | 73 | 38 | 136 | 27 | 120 | 124 | 74 | 37 |
| Percentage of ProfitLoss | 98.4 | 98.3 | 99.5 | 98.9 | 93.2 | 99.3 | 96.1 | 99.5 | 99.7 | 99.5 | 97.4 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 3.9 | 3.3 | 5.4 | 3.0 | 1.4 | 4.1 | 1.0 | 4.3 | 4.2 | 2.8 | 1.6 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 2999 | 2703 | 2912 | 3020 | 2506 | 2764 | 3112 | 3352 | 2839 | 2807 | 3112 | 2985 | 2656 | 2417 | 2478 | 2609 | 2200 | 2178 | 2102 | 2042 | 1792 | 1713 | 1899 | 1939 | 1872 | 1886 | 2052 | 2171 | 1864 | 1762 | 1817 | 1645 | 1474 | 1585 | 1673 | 1685 | 1516 | 1425 | 1513 | 1250 | 1010 | 848 | 1106 | 1206 | 870 | 748 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 2147 | 2060 | 2105 | 2107 | 1792 | 1767 | 1847 | 1876 | 1734 | 1664 | 1659 | 1617 | 1570 | 1568 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 71.6 | 76.2 | 72.3 | 69.8 | 71.5 | 63.9 | 59.3 | 56.0 | 61.1 | 59.3 | 53.3 | 54.2 | 59.1 | 64.9 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 71.6 | 76.2 | 72.3 | 69.8 | 71.5 | 63.9 | 59.3 | 56.0 | 61.1 | 59.3 | 53.3 | 54.2 | 59.1 | 64.9 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments pwr:ElectricPowerInfrastructureServices | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 912 | 713 | 997 | 1265 | 1476 | 1104 | 1143 | 1453 | 1367 | 1086 | 849 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 30.2 | 28.5 | 36.1 | 40.7 | 44.0 | 38.9 | 40.7 | 46.7 | 45.8 | 40.9 | 35.1 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 30.2 | 28.5 | 36.1 | 40.7 | 44.0 | 38.9 | 40.7 | 46.7 | 45.8 | 40.9 | 35.1 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments pwr:PipelineAndIndustrialInfrastructureServices | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-06-30 | 2020-03-31 |
| Value | 852 | 643 | 713 | 997 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 28.4 | 23.8 | 28.5 | 36.1 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 28.4 | 23.8 | 28.5 | 36.1 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments pwr:UndergroundUtilityAndInfrastructureSolutionsDivision | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 0.0 | 0.5 | 2.4 | 4.7 | 28 | 28 | -20.8 | 27 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 0.0 | 0.0 | 0.1 | 0.2 | 0.9 | 0.8 | -0.7 | 1.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 0.0 | 0.0 | 0.1 | 0.2 | 0.9 | 0.8 | -0.7 | 1.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments srt:LatinAmerica pwr:ElectricPowerInfrastructureServices | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 1217 | 976 | 1138 | 1141 | 918 | 974 | 1035 | 1241 | 1020 | 895 | 1114 | 1082 | 1018 | 613 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 40.6 | 36.1 | 39.1 | 37.8 | 36.6 | 35.3 | 33.3 | 37.0 | 35.9 | 31.9 | 35.8 | 36.3 | 38.3 | 25.4 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 40.6 | 36.1 | 39.1 | 37.8 | 36.6 | 35.3 | 33.3 | 37.0 | 35.9 | 31.9 | 35.8 | 36.3 | 38.3 | 25.4 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pwr:UnitPriceContracts | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 1022 | 1064 | 1082 | 1176 | 1019 | 1101 | 1707 | 1238 | 715 | 953 | 1337 | 1239 | 1032 | 1225 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 34.1 | 39.4 | 37.2 | 39.0 | 40.7 | 39.8 | 54.8 | 36.9 | 25.2 | 34.0 | 43.0 | 41.5 | 38.9 | 50.7 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 34.1 | 39.4 | 37.2 | 39.0 | 40.7 | 39.8 | 54.8 | 36.9 | 25.2 | 34.0 | 43.0 | 41.5 | 38.9 | 50.7 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:FixedPriceContract | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 759 | 662 | 691 | 702 | 567 | 688 | 369 | 872 | 1103 | 958 | 660 | 662 | 605 | 579 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 25.3 | 24.5 | 23.7 | 23.3 | 22.7 | 24.9 | 11.9 | 26.0 | 38.9 | 34.1 | 21.2 | 22.2 | 22.8 | 24.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 25.3 | 24.5 | 23.7 | 23.3 | 22.7 | 24.9 | 11.9 | 26.0 | 38.9 | 34.1 | 21.2 | 22.2 | 22.8 | 24.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TimeAndMaterialsContract | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 62 | 55 | 44 | 49 | 56 | 51 | 53 | 56 | 36 | 41 | 69 | 75 | 113 | 119 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 2.1 | 2.0 | 1.5 | 1.6 | 2.2 | 1.8 | 1.7 | 1.7 | 1.3 | 1.5 | 2.2 | 2.5 | 4.3 | 4.9 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 2.1 | 2.0 | 1.5 | 1.6 | 2.2 | 1.8 | 1.7 | 1.7 | 1.3 | 1.5 | 2.2 | 2.5 | 4.3 | 4.9 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:AU | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 327 | 413 | 334 | 320 | 212 | 384 | 407 | 342 | 202 | 485 | 608 | 522 | 315 | 538 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 10.9 | 15.3 | 11.5 | 10.6 | 8.5 | 13.9 | 13.1 | 10.2 | 7.1 | 17.3 | 19.5 | 17.5 | 11.9 | 22.3 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 10.9 | 15.3 | 11.5 | 10.6 | 8.5 | 13.9 | 13.1 | 10.2 | 7.1 | 17.3 | 19.5 | 17.5 | 11.9 | 22.3 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:CA | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 2570 | 2206 | 2513 | 2629 | 2207 | 2268 | 2555 | 2872 | 2561 | 2200 | 2351 | 2317 | 2193 | 1712 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 85.7 | 81.6 | 86.3 | 87.1 | 88.1 | 82.1 | 82.1 | 85.7 | 90.2 | 78.4 | 75.6 | 77.6 | 82.6 | 70.8 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 85.7 | 81.6 | 86.3 | 87.1 | 88.1 | 82.1 | 82.1 | 85.7 | 90.2 | 78.4 | 75.6 | 77.6 | 82.6 | 70.8 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:US | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 20 | 20 | 29 | 60 | 97 | 81 | 38 | 79 | 83 | 69 | 33 | 47 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 0.7 | 0.7 | 1.2 | 2.2 | 3.1 | 2.4 | 1.3 | 2.8 | 2.7 | 2.3 | 1.3 | 2.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 0.7 | 0.7 | 1.2 | 2.2 | 3.1 | 2.4 | 1.3 | 2.8 | 2.7 | 2.3 | 1.3 | 2.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pwr:LatinAmericaandOther | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-06-30 | 2020-03-31 |
| Value | 39 | 28 | 29 | 60 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 1.3 | 1.1 | 1.2 | 2.2 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 1.3 | 1.1 | 1.2 | 2.2 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax pwr:OtherCountries | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 429 | 497 | 400 | 390 | 298 | 496 | 560 | 480 | 277 | 606 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 14.3 | 18.4 | 13.7 | 12.9 | 11.9 | 17.9 | 18.0 | 14.3 | 9.8 | 21.6 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 14.3 | 18.4 | 13.7 | 12.9 | 11.9 | 17.9 | 18.0 | 14.3 | 9.8 | 21.6 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NonUs | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 270 | 243 | 265 | 250 | 227 | 230 | 255 | 245 | 223 | 231 | 212 | 224 | 206 | 215 | 206 | 201 | 185 | 184 | 173 | 164 | 156 | 158 | 151 | 145 | 149 | 150 | 208 | 200 | 139 | 173 | 143 | 124 | 119 | 113 | 89 | 124 | 114 | 106 | 99 | 92 | 89 | 91 | 94 | 82 | 82 | 81 |
| Percentage of SellingGeneralAndAdministrativeExpense | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 9.0 | 9.0 | 9.1 | 8.3 | 9.1 | 8.3 | 8.2 | 7.3 | 7.9 | 8.3 | 6.8 | 7.5 | 7.8 | 8.9 | 8.3 | 7.7 | 8.4 | 8.5 | 8.3 | 8.0 | 8.7 | 9.3 | 8.0 | 7.5 | 8.0 | 8.0 | 10.2 | 9.2 | 7.5 | 9.8 | 7.9 | 7.6 | 8.1 | 7.2 | 5.3 | 7.4 | 7.6 | 7.5 | 6.6 | 7.4 | 8.9 | 10.8 | 8.5 | 6.8 | 9.4 | 10.8 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 8720 | 8557 | 8398 | 8325 | 8089 | 8228 | 8331 | 8865 | 8021 | 7652 | 7075 | 7191 | 6790 | 6653 | 6480 | 6640 | 5753 | 5543 | 5354 | 5476 | 5297 | 5295 | 5213 | 5373 | 6130 | 6140 | 6312 | 6229 | 5909 | 5826 | 5793 | 5494 | 5187 | 5154 | 5140 | 5255 | 4897 | 4755 | 4699 | 4463 | 4292 | 4324 | 4341 | 4116 |
| Percentage of Assets | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 4230 | 4177 | 4049 | 4169 | 4171 | 4433 | 4277 | 4955 | 4245 | 3927 | 3470 | 3366 | 3096 | 3006 | 2684 | 2910 | 2244 | 2144 | 2011 | 2199 | 2093 | 2122 | 2125 | 2169 | 1920 | 1830 | 1786 | 1740 | 1507 | 1509 | 1551 | 1470 | 1300 | 1323 | 1368 | 1585 | 1351 | 1284 | 1309 | 1160 | 989 | 964 | 974 | 1006 |
| Percentage of Liabilities | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 48.5 | 48.8 | 48.2 | 50.1 | 51.6 | 53.9 | 51.3 | 55.9 | 52.9 | 51.3 | 49.0 | 46.8 | 45.6 | 45.2 | 41.4 | 43.8 | 39.0 | 38.7 | 37.6 | 40.2 | 39.5 | 40.1 | 40.8 | 40.4 | 31.3 | 29.8 | 28.3 | 27.9 | 25.5 | 25.9 | 26.8 | 26.8 | 25.1 | 25.7 | 26.6 | 30.2 | 27.6 | 27.0 | 27.9 | 26.0 | 23.1 | 22.3 | 22.4 | 24.4 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 8720 | 8557 | 8398 | 8325 | 8089 | 8228 | 8331 | 8865 | 8021 | 7652 | 7075 | 7191 | 6790 | 6653 | 6480 | 6640 | 5753 | 5543 | 5354 | 5476 | 5297 | 5295 | 5213 | 5373 | 6130 | 6140 | 6312 | 6229 | 5909 | 5826 | 5793 | 5494 | 5187 | 5154 | 5140 | 5255 | 4897 | 4755 | 4699 | 4463 | 4292 | 4324 | 4341 | 4116 |
| Percentage of LiabilitiesAndStockholdersEquity | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 4486 | 4374 | 4344 | 4151 | 3914 | 3790 | 4050 | 3907 | 3774 | 3723 | 3604 | 3822 | 3690 | 3643 | 3791 | 3727 | 3506 | 3396 | 3339 | 3273 | 3200 | 3170 | 3085 | 3189 | 4196 | 4297 | 4514 | 4471 | 4385 | 4305 | 4234 | 4015 | 3882 | 3826 | 3766 | 3662 | 3536 | 3461 | 3381 | 3294 | 3298 | 3357 | 3365 | 3109 |
| Percentage of StockholdersEquity | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 51.4 | 51.1 | 51.7 | 49.9 | 48.4 | 46.1 | 48.6 | 44.1 | 47.1 | 48.7 | 50.9 | 53.2 | 54.4 | 54.8 | 58.5 | 56.1 | 61.0 | 61.3 | 62.4 | 59.8 | 60.4 | 59.9 | 59.2 | 59.4 | 68.4 | 70.0 | 71.5 | 71.8 | 74.2 | 73.9 | 73.1 | 73.1 | 74.8 | 74.2 | 73.3 | 69.7 | 72.2 | 72.8 | 72.0 | 73.8 | 76.8 | 77.6 | 77.5 | 75.5 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 3733 | 3605 | 3588 | 3677 | 3644 | 3758 | 3830 | 4301 | 3751 | 3554 | 3326 | 3378 | 3074 | 2957 | 2869 | 2948 | 2617 | 2474 | 2288 | 2405 | 2244 | 2248 | 2277 | 2362 | 2315 | 2387 | 2553 | 2536 | 2242 | 2214 | 2313 | 2137 | 2176 | 2185 | 2201 | 2136 | 1824 | 1770 | 1765 | 1576 | 1476 | 1562 | 1596 | 1582 |
| Percentage of AssetsCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 42.8 | 42.1 | 42.7 | 44.2 | 45.1 | 45.7 | 46.0 | 48.5 | 46.8 | 46.4 | 47.0 | 47.0 | 45.3 | 44.4 | 44.3 | 44.4 | 45.5 | 44.6 | 42.7 | 43.9 | 42.4 | 42.5 | 43.7 | 44.0 | 37.8 | 38.9 | 40.5 | 40.7 | 38.0 | 38.0 | 39.9 | 38.9 | 42.0 | 42.4 | 42.8 | 40.7 | 37.3 | 37.2 | 37.6 | 35.3 | 34.4 | 36.1 | 36.8 | 38.4 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 | 2009-12-31 | 2008-12-31 | 2007-12-31 |
| Value | 212 | 200 | 184 | 216 | 530 | 377 | 164 | 80 | 73 | 85 | 78 | 113 | 120 | 101 | 138 | 91 | 99 | 106 | 112 | 117 | 162 | 155 | 128 | 49 | 65 | 135 | 190 | 144 | 188 | 273 | 488 | 309 | 363 | 366 | 394 | 128 | 172 | 177 | 315 | 257 | 380 | 503 | 539 | 441 | 519 | 659 | 699 | 437 | 407 |
| Percentage of CashAndCashEquivalentsAtCarryingValue | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 2.4 | 2.3 | 2.2 | 2.6 | 6.6 | 4.6 | 2.0 | 0.9 | 0.9 | 1.1 | 1.1 | 1.6 | 1.8 | 1.5 | 2.1 | 1.4 | 1.7 | 1.9 | 2.1 | 2.1 | 3.1 | 2.9 | 2.5 | 0.9 | 1.1 | 2.2 | 3.0 | 2.3 | 3.2 | 4.7 | 8.4 | 5.6 | 7.0 | 7.1 | 7.7 | 2.4 | 3.5 | 3.7 | 6.7 | 5.8 | 8.9 | 11.6 | 12.4 | 0.0 | 0.0 | 0.0 | 17.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 |
| Value | 132 | 131 | 85 |
| Percentage of CashAndCashEquivalentsAtCarryingValue | 62.1 | 65.8 | 46.0 |
| Percentage of Assets | 1.5 | 1.5 | 1.0 |
| Percentage of Assets pwr:CaptiveInsuranceCompany | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2017-12-31 |
| Value | 61 | 60 | 172 | 206 | 521 | 368 | 158 | 72 | 65 | 73 | 69 | 121 |
| Percentage of CashAndCashEquivalentsAtCarryingValue | 29.0 | 30.2 | 93.7 | 95.4 | 98.2 | 97.6 | 96.0 | 90.0 | 89.2 | 85.5 | 88.6 | 88.0 |
| Percentage of Assets | 0.7 | 0.7 | 2.1 | 2.5 | 6.4 | 4.5 | 1.9 | 0.8 | 0.8 | 1.0 | 1.0 | 1.9 |
| Percentage of Assets pwr:CashNotHeldByJointVentures | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2013-12-31 |
| Value | 176 | 170 | 156 | 189 | 480 | 350 | 130 | 55 | 52 | 57 | 62 | 79 | 79 | 78 | 83 | 25 | 31 | 17 | 19 | 9.4 | 13 | 18 | 16 | 19 | 29 | 103 | 127 | 43 | 236 |
| Percentage of CashAndCashEquivalentsAtCarryingValue | 83.3 | 85.0 | 84.6 | 87.1 | 90.5 | 92.9 | 79.4 | 69.4 | 71.5 | 67.6 | 79.4 | 69.9 | 66.1 | 76.7 | 60.1 | 27.3 | 31.5 | 16.4 | 17.4 | 8.0 | 8.3 | 11.8 | 12.5 | 40.0 | 44.5 | 76.6 | 66.8 | 30.4 | 48.4 |
| Percentage of Assets | 2.0 | 2.0 | 1.9 | 2.3 | 5.9 | 4.3 | 1.6 | 0.6 | 0.7 | 0.8 | 0.9 | 1.1 | 1.2 | 1.2 | 1.3 | 0.4 | 0.5 | 0.3 | 0.4 | 0.2 | 0.3 | 0.3 | 0.3 | 0.4 | 0.5 | 1.7 | 2.0 | 0.7 | 4.1 |
| Percentage of Assets pwr:DomesticBankAccounts | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2016-12-31 |
| Value | 13 | 4.091 | 7.714 | 6.948 | 9.281 | 9.097 | 6.518 | 7.855 | 7.927 | 12 | 8.544 | 11 | 11 | 10 | 10.0 | 10.0 | 10 | 10.0 |
| Percentage of CashAndCashEquivalentsAtCarryingValue | 6.5 | 2.0 | 4.2 | 3.2 | 1.7 | 2.4 | 4.0 | 9.8 | 10.8 | 14.4 | 10.9 | 10.5 | 9.3 | 10.4 | 7.2 | 10.9 | 10.5 | 8.9 |
| Percentage of Assets | 0.2 | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Percentage of Assets pwr:DomesticJointVentures | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2013-12-31 |
| Value | 35 | 30 | 28 | 27 | 50 | 26 | 34 | 24 | 20 | 27 | 16 | 34 | 40 | 23 | 55 | 66 | 68 | 89 | 92 | 108 | 148 | 137 | 112 | 29 | 36 | 31 | 63 | 100 | 252 |
| Percentage of CashAndCashEquivalentsAtCarryingValue | 16.7 | 15.0 | 15.4 | 12.9 | 9.5 | 7.1 | 20.6 | 30.6 | 28.5 | 32.4 | 20.6 | 30.1 | 33.9 | 23.3 | 39.9 | 72.7 | 68.5 | 83.6 | 82.6 | 92.0 | 91.7 | 88.2 | 87.5 | 60.0 | 55.5 | 23.4 | 33.2 | 69.6 | 51.6 |
| Percentage of Assets | 0.4 | 0.4 | 0.3 | 0.3 | 0.6 | 0.3 | 0.4 | 0.3 | 0.3 | 0.4 | 0.2 | 0.5 | 0.6 | 0.4 | 0.9 | 1.0 | 1.2 | 1.6 | 1.7 | 2.0 | 2.8 | 2.6 | 2.2 | 0.5 | 0.6 | 0.5 | 1.0 | 1.6 | 4.4 |
| Percentage of Assets pwr:ForeignBankAccounts | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2017-12-31 |
| Value | 4.873 | 3.78 | 3.973 | 3.027 | 0.007 | 0.104 | 0.016 | 0.142 | 0.015 | 0.011 | 0.441 | 6.615 |
| Percentage of CashAndCashEquivalentsAtCarryingValue | 2.3 | 1.9 | 2.2 | 1.4 | 0.0 | 0.0 | 0.0 | 0.2 | 0.0 | 0.0 | 0.6 | 4.8 |
| Percentage of Assets | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 |
| Percentage of Assets pwr:ForeignJointVentures | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2016-12-31 |
| Value | 18 | 7.871 | 11 | 9.975 | 9.288 | 9.201 | 6.534 | 7.997 | 7.942 | 12 | 8.985 | 12 | 11 | 11 | 16 | 34 | 13 | 11 |
| Percentage of CashAndCashEquivalentsAtCarryingValue | 8.8 | 3.9 | 6.3 | 4.6 | 1.8 | 2.4 | 4.0 | 10.0 | 10.8 | 14.5 | 11.4 | 10.9 | 9.6 | 11.1 | 12.1 | 37.1 | 13.5 | 10.3 |
| Percentage of Assets | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.1 | 0.2 | 0.2 | 0.2 | 0.3 | 0.5 | 0.2 | 0.2 |
| Percentage of Assets pwr:InvestmentsInJointVentures | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2015-12-31 |
| Value | 214 | 202 | 186 | 219 | 532 | 381 | 169 | 84 | 78 | 89 | 83 | 118 | 124 | 105 | 143 | 95 | 102 | 107 | 114 | 128 |
| Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 2.5 | 2.4 | 2.2 | 2.6 | 6.6 | 4.6 | 2.0 | 1.0 | 1.0 | 1.2 | 1.2 | 1.6 | 1.8 | 1.6 | 2.2 | 1.4 | 1.8 | 1.9 | 2.1 | 2.5 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 2570 | 2666 | 2716 | 2750 | 2370 | 2593 | 2747 | 3188 | 2632 | 2580 | 2354 | 2291 | 2108 | 2088 | 1985 | 1980 | 1614 | 1589 | 1500 | 1565 | 1384 | 1493 | 1621 | 1700 | 1626 | 1642 | 1812 | 1873 | 1589 | 1501 | 1439 | 1434 | 1282 | 1283 | 1328 | 1441 | 1138 | 1114 | 1066 | 1008 | 813 | 767 | 766 | 688 |
| Percentage of AccountsReceivableNetCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 29.5 | 31.2 | 32.3 | 33.0 | 29.3 | 31.5 | 33.0 | 36.0 | 32.8 | 33.7 | 33.3 | 31.9 | 31.0 | 31.4 | 30.6 | 29.8 | 28.1 | 28.7 | 28.0 | 28.6 | 26.1 | 28.2 | 31.1 | 31.6 | 26.5 | 26.8 | 28.7 | 30.1 | 26.9 | 25.8 | 24.8 | 26.1 | 24.7 | 24.9 | 25.8 | 27.4 | 23.3 | 23.4 | 22.7 | 22.6 | 18.9 | 17.7 | 17.7 | 16.7 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 62 | 51 | 50 | 39 | 48 | 50 | 55 | 67 | 68 | 81 | 107 | 94 | 85 | 94 | 80 | 86 | 94 | 89 | 88 | 89 | 74 | 72 | 75 | 64 | 55 | 45 | 38 | 39 | 40 | 35 | 31 | 35 | 40 | 37 | 38 | 55 | 57 | 72 | 71 | 74 | 62 | 53 | 51 | 33 |
| Percentage of InventoryNet | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.7 | 0.6 | 0.6 | 0.5 | 0.6 | 0.6 | 0.7 | 0.8 | 0.9 | 1.1 | 1.5 | 1.3 | 1.3 | 1.4 | 1.2 | 1.3 | 1.6 | 1.6 | 1.7 | 1.6 | 1.4 | 1.4 | 1.4 | 1.2 | 0.9 | 0.7 | 0.6 | 0.6 | 0.7 | 0.6 | 0.6 | 0.6 | 0.8 | 0.7 | 0.7 | 1.1 | 1.2 | 1.5 | 1.5 | 1.7 | 1.4 | 1.2 | 1.2 | 0.8 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2014-12-31 |
| Value | 219 | 169 | 183 | 191 | 205 | 168 | 261 | 313 | 294 | 234 | 208 | 198 | 208 | 173 | 168 | 147 | 178 | 132 | 114 | 135 | 156 | 143 | 134 | 161 |
| Percentage of PrepaidExpenseAndOtherAssetsCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 2.5 | 2.0 | 2.2 | 2.3 | 2.5 | 2.0 | 3.1 | 3.5 | 3.7 | 3.1 | 2.9 | 2.8 | 3.1 | 2.6 | 2.6 | 2.2 | 3.1 | 2.4 | 2.1 | 2.5 | 2.9 | 2.7 | 2.6 | 2.6 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 |
| Value | 249 | 231 | 208 |
| Percentage of PropertyPlantAndEquipmentGross | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 3.0 | 2.8 | 3.0 |
| Percentage of Assets pwr:BuildingsAndLeaseholdImprovements | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 |
| Value | 244 | 228 | 212 |
| Percentage of PropertyPlantAndEquipmentGross | 98.0 | 98.5 | 101.8 |
| Percentage of Assets | 2.9 | 2.7 | 3.0 |
| Percentage of Assets pwr:OfficeEquipmentFurnitureAndFixturesAndInformationTechnologySystems | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 |
| Value | 2297 | 2068 | 1865 |
| Percentage of PropertyPlantAndEquipmentGross | 922.1 | 892.0 | 892.9 |
| Percentage of Assets | 27.4 | 24.8 | 26.4 |
| Percentage of Assets pwr:OperatingEquipmentAndVehicles | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 |
| Value | 20 | 26 | 19 |
| Percentage of PropertyPlantAndEquipmentGross | 8.4 | 11.3 | 9.3 |
| Percentage of Assets | 0.2 | 0.3 | 0.3 |
| Percentage of Assets us-gaap:ConstructionInProgress | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 |
| Value | 69 | 67 | 61 |
| Percentage of PropertyPlantAndEquipmentGross | 27.9 | 29.1 | 29.3 |
| Percentage of Assets | 0.8 | 0.8 | 0.9 |
| Percentage of Assets us-gaap:Land | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 1372 | 1250 | 1203 | 1163 | 1137 | 1092 | 1086 | 1042 | 1011 | 981 | 966 | 929 | 894 | 862 | 852 | 824 | 791 | 755 | 733 | 707 | 770 | 739 | 716 | 688 | 657 | 631 | 627 | 590 | 569 | 555 | 582 | 563 | 545 | 519 | 501 | 481 | 451 | 428 | 383 |
| Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 16.3 | 15.0 | 13.6 | 14.5 | 14.9 | 15.4 | 15.1 | 15.4 | 15.2 | 15.1 | 14.6 | 16.2 | 16.1 | 16.1 | 15.6 | 15.6 | 14.9 | 14.5 | 13.6 | 11.5 | 12.6 | 11.7 | 11.5 | 11.7 | 11.3 | 10.9 | 11.4 | 11.4 | 11.1 | 10.8 | 11.1 | 11.5 | 11.5 | 11.1 | 11.2 | 11.2 | 10.4 | 9.9 | 9.3 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 21 | 21 | 21 | 19 | 17 | 17 | 21 | 15 | 12 | 12 | 12 | 10 | 10 | 10 | 10 | 9.0 | 6.494 | 6.562 | 7.955 | 8.094 | 8.141 | 7.495 | 9.174 | 8.65 | 8.731 | 8.706 | 9.509 | 9.538 | 8.615 | 8.245 | 10 | 7.026 | 5.079 | 5.301 | 8.244 | 10 | 9.549 | 9.394 | 8.521 | 8.295 | 6.871 | 6.266 | 10 | 13 | 9.09 | 5.848 |
| Percentage of AmortizationOfIntangibleAssets | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 331 | 329 | 336 | 307 | 297 | 291 | 314 | 304 | 330 | 320 |
| Percentage of PropertyPlantAndEquipmentNet | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 3.8 | 3.9 | 4.0 | 3.7 | 3.7 | 3.5 | 3.8 | 4.3 | 5.1 | 6.0 |
| Percentage of Assets us-gaap:NonUs | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 2136 | 2124 | 2121 | 2097 | 2022 | 2006 | 2022 | 2002 | 1932 | 1927 | 1899 | 1912 | 1897 | 1902 | 1868 | 1937 | 1616 | 1608 | 1603 | 1612 | 1595 | 1595 | 1552 | 1596 | 1598 | 1922 | 1931 | 1880 | 1842 | 1832 | 1780 | 1650 | 1530 | 1535 | 1537 | 1670 | 1664 | 1646 | 1601 | 1586 | 1563 | 1564 | 1561 | 1449 |
| Percentage of Goodwill | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 24.5 | 24.8 | 25.3 | 25.2 | 25.0 | 24.4 | 24.3 | 22.6 | 24.1 | 25.2 | 26.9 | 26.6 | 27.9 | 28.6 | 28.8 | 29.2 | 28.1 | 29.0 | 29.9 | 29.4 | 30.1 | 30.1 | 29.8 | 29.7 | 26.1 | 31.3 | 30.6 | 30.2 | 31.2 | 31.4 | 30.7 | 30.0 | 29.5 | 29.8 | 29.9 | 31.8 | 34.0 | 34.6 | 34.1 | 35.5 | 36.4 | 36.2 | 36.0 | 35.2 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 |
| Value | 1452 | 1449 | 1434 | 1363 | 1352 | 1365 | 1349 | 1342 | 1338 | 1313 | 1272 | 1253 | 1226 |
| Percentage of Goodwill | 68.4 | 68.4 | 68.4 | 67.4 | 67.4 | 67.5 | 67.4 | 69.5 | 69.5 | 69.1 | 68.1 | 78.2 | 79.0 |
| Percentage of Assets | 17.0 | 17.3 | 17.2 | 16.9 | 16.4 | 16.4 | 15.2 | 16.7 | 17.5 | 18.6 | 19.6 | 23.4 | 23.5 |
| Percentage of Assets pwr:ElectricPowerInfrastructureServices | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 |
| Value | 671 | 671 | 663 | 659 | 653 | 657 | 652 | 589 | 588 | 586 | 596 | 349 | 326 |
| Percentage of Goodwill | 31.6 | 31.6 | 31.6 | 32.6 | 32.6 | 32.5 | 32.6 | 30.5 | 30.5 | 30.9 | 31.9 | 21.8 | 21.0 |
| Percentage of Assets | 7.8 | 8.0 | 8.0 | 8.2 | 7.9 | 7.9 | 7.4 | 7.4 | 7.7 | 8.3 | 9.2 | 6.5 | 6.3 |
| Percentage of Assets pwr:PipelineAndIndustrialInfrastructureServices | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 671 | 657 | 586 | 596 |
| Percentage of Goodwill | 31.6 | 32.5 | 30.9 | 31.9 |
| Percentage of Assets | 8.0 | 7.9 | 8.3 | 9.2 |
| Percentage of Assets pwr:UndergroundUtilityAndInfrastructureSolutionsDivision | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 |
| Value | 303 | 303 | 303 |
| Percentage of Goodwill | 14.2 | 14.3 | 14.3 |
| Percentage of Assets | 3.5 | 3.5 | 3.6 |
| Percentage of Assets pwr:UndergroundUtilityAndInfrastructureSolutionsDivision pwr:SpecializedIndustrialServicesBusiness | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 |
| Value | 99 |
| Percentage of Goodwill | 4.7 |
| Percentage of Assets | 1.2 |
| Percentage of Assets pwr:UndergroundUtilityAndInfrastructureSolutionsDivision pwr:TwoCanadianPipelineOperatingBusinessesAndUnitedStateMaterialHandlingServices | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 101 | 100 |
| Percentage of Goodwill | 4.8 | 4.8 |
| Percentage of Assets | 1.2 | 1.2 |
| Percentage of Assets pwr:UndergroundUtilityAndInfrastructureSolutionsDivision pwr:TwoCanadianPipelineOperatingBusinessesAndUnitedStatesMaterialHandlingServices | 0.0 | 0.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2017-12-31 |
| Value | 3000000.0 | 3000000.0 | 3000000.0 | 3000000.0 | 3000000.0 | 3000000.0 | 3000000.0 | 3000000.0 | 3000000.0 | 3000000.0 | 3000000.0 | 3000000.0 | 0 |
| Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 |
| Percentage of Assets | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of Assets us-gaap:LicensingAgreements | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 403 | 415 | 435 | 434 | 380 | 395 | 413 | 431 | 264 | 276 | 280 | 284 | 261 | 270 | 263 | 275 | 184 | 181 | 187 | 197 | 203 | 211 | 205 | 225 | 234 | 252 | 260 | 229 | 214 | 219 | 207 | 190 | 171 | 178 | 183 | 199 | 206 | 209 | 207 | 199 | 186 | 189 | 194 | 184 |
| Percentage of IntangibleAssetsNetExcludingGoodwill | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 4.6 | 4.9 | 5.2 | 5.2 | 4.7 | 4.8 | 5.0 | 4.9 | 3.3 | 3.6 | 4.0 | 4.0 | 3.9 | 4.1 | 4.1 | 4.1 | 3.2 | 3.3 | 3.5 | 3.6 | 3.8 | 4.0 | 3.9 | 4.2 | 3.8 | 4.1 | 4.1 | 3.7 | 3.6 | 3.8 | 3.6 | 3.5 | 3.3 | 3.5 | 3.6 | 3.8 | 4.2 | 4.4 | 4.4 | 4.5 | 4.3 | 4.4 | 4.5 | 4.5 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 |
| Value | 46 | 49 | 53 |
| Percentage of IntangibleAssetsNetExcludingGoodwill | 11.6 | 12.0 | 12.2 |
| Percentage of Assets | 0.5 | 0.6 | 0.6 |
| Percentage of Assets pwr:UndergroundUtilityAndInfrastructureSolutionsDivision pwr:SpecializedIndustrialServicesBusiness | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 |
| Value | 19 |
| Percentage of IntangibleAssetsNetExcludingGoodwill | 4.5 |
| Percentage of Assets | 0.2 |
| Percentage of Assets pwr:UndergroundUtilityAndInfrastructureSolutionsDivision pwr:TwoCanadianPipelineOperatingBusinessesAndUnitedStateMaterialHandlingServices | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 17 | 18 |
| Percentage of IntangibleAssetsNetExcludingGoodwill | 4.3 | 4.5 |
| Percentage of Assets | 0.2 | 0.2 |
| Percentage of Assets pwr:UndergroundUtilityAndInfrastructureSolutionsDivision pwr:TwoCanadianPipelineOperatingBusinessesAndUnitedStatesMaterialHandlingServices | 0.0 | 0.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 |
| Value | 412 | 432 | 431 | 377 | 392 | 410 | 428 | 261 | 273 | 277 | 281 | 258 | 270 | 263 | 275 | 184 | 181 | 187 | 197 | 203 | 211 | 205 | 225 | 234 | 247 | 256 | 224 | 209 | 215 | 203 | 186 | 167 | 174 | 179 | 194 | 201 | 204 | 202 | 195 | 181 |
| Percentage of FiniteLivedIntangibleAssetsNet | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 4.8 | 5.2 | 5.2 | 4.7 | 4.8 | 4.9 | 4.8 | 3.3 | 3.6 | 3.9 | 3.9 | 3.8 | 4.1 | 4.1 | 4.1 | 3.2 | 3.3 | 3.5 | 3.6 | 3.8 | 4.0 | 3.9 | 4.2 | 3.8 | 4.0 | 4.1 | 3.6 | 3.5 | 3.7 | 3.5 | 3.4 | 3.2 | 3.4 | 3.5 | 3.7 | 4.1 | 4.3 | 4.3 | 4.4 | 4.2 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 |
| Value | 8.804 | 9.12 | 8.907 | 9.202 | 9.498 | 9.016 | 9.607 | 8.1 | 8.339 | 8.576 | 8.376 | 8.601 | 8.826 | 0.0 |
| Percentage of FiniteLivedIntangibleAssetsNet | 2.1 | 2.1 | 2.1 | 2.4 | 2.4 | 2.2 | 2.2 | 3.1 | 3.1 | 3.1 | 3.0 | 3.3 | 3.3 | 0.0 |
| Percentage of Assets | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.0 |
| Percentage of Assets pwr:Curriculum | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 |
| Value | 322 | 339 | 336 | 291 | 303 | 318 | 334 | 181 | 185 | 194 | 195 | 175 | 184 | 190 | 199 | 133 | 130 | 133 | 140 | 145 | 150 | 145 | 161 | 167 | 177 | 183 | 159 | 146 | 147 | 139 | 127 | 115 | 119 | 122 | 131 | 132 | 134 | 133 | 130 | 120 |
| Percentage of FiniteLivedIntangibleAssetsNet | 78.2 | 78.4 | 77.9 | 77.2 | 77.3 | 77.6 | 78.0 | 69.5 | 68.0 | 70.1 | 69.6 | 67.8 | 68.0 | 72.2 | 72.4 | 72.5 | 71.5 | 71.5 | 71.2 | 71.6 | 71.2 | 71.1 | 71.6 | 71.5 | 71.9 | 71.5 | 71.1 | 69.7 | 68.6 | 68.7 | 68.3 | 69.1 | 68.8 | 68.4 | 67.5 | 65.9 | 65.6 | 66.0 | 67.0 | 66.4 |
| Percentage of Assets | 3.8 | 4.0 | 4.0 | 3.6 | 3.7 | 3.8 | 3.8 | 2.3 | 2.4 | 2.7 | 2.7 | 2.6 | 2.8 | 2.9 | 3.0 | 2.3 | 2.3 | 2.5 | 2.6 | 2.7 | 2.8 | 2.8 | 3.0 | 2.7 | 2.9 | 2.9 | 2.6 | 2.5 | 2.5 | 2.4 | 2.3 | 2.2 | 2.3 | 2.4 | 2.5 | 2.7 | 2.8 | 2.8 | 2.9 | 2.8 |
| Percentage of Assets us-gaap:CustomerRelationships | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 |
| Value | 0.556 | 0.592 | 0.896 | 1.267 | 1.627 | 2.037 | 2.214 | 2.593 | 7.42 | 3.307 | 3.678 | 4.08 | 4.495 | 4.918 | 5.366 | 5.787 | 6.213 | 6.649 | 7.143 | 7.641 | 8.139 | 8.599 | 9.161 | 9.747 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 12 | 12 | 13 | 13 | 12 | 13 | 10 | 10 | 11 |
| Percentage of FiniteLivedIntangibleAssetsNet | 0.1 | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.5 | 1.0 | 2.7 | 1.2 | 1.3 | 1.6 | 1.7 | 1.9 | 2.0 | 3.1 | 3.4 | 3.6 | 3.6 | 3.8 | 3.9 | 4.2 | 4.1 | 4.2 | 4.1 | 4.1 | 4.7 | 5.3 | 5.4 | 5.8 | 6.3 | 7.3 | 7.4 | 7.5 | 7.2 | 6.4 | 6.5 | 5.2 | 5.6 | 6.1 |
| Percentage of Assets | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.2 | 0.2 | 0.3 |
| Percentage of Assets us-gaap:DevelopedTechnologyRights | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 |
| Value | 9.432 | 10 | 11 | 9.272 | 10 | 10 | 11 | 10.0 | 10 | 10 | 10 | 8.758 | 9.52 | 10 | 10 | 3.488 | 3.351 | 3.666 | 4.134 | 4.39 | 4.921 | 5.053 | 5.95 | 5.951 | 5.938 | 6.294 | 6.657 | 5.468 | 5.999 | 6.035 | 5.152 | 5.372 | 6.088 | 6.7 | 7.962 | 8.79 | 9.369 | 9.81 | 10 | 8.755 |
| Percentage of FiniteLivedIntangibleAssetsNet | 2.3 | 2.4 | 2.6 | 2.5 | 2.6 | 2.5 | 2.7 | 3.8 | 4.0 | 3.8 | 3.8 | 3.4 | 3.5 | 3.8 | 4.0 | 1.9 | 1.8 | 2.0 | 2.1 | 2.2 | 2.3 | 2.5 | 2.6 | 2.5 | 2.4 | 2.5 | 3.0 | 2.6 | 2.8 | 3.0 | 2.8 | 3.2 | 3.5 | 3.7 | 4.1 | 4.4 | 4.6 | 4.8 | 5.4 | 4.8 |
| Percentage of Assets | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Percentage of Assets us-gaap:NoncompeteAgreements | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 |
| Value | 3.244 | 4.293 | 5.391 | 2.403 | 2.814 | 3.124 | 3.53 | 0.823 | 1.432 | 0.986 | 1.581 | 0.887 | 1.206 | 0.419 | 0.722 | 0.672 | 0.925 | 1.151 | 2.497 | 2.537 | 3.662 | 3.864 | 5.902 | 7.721 | 10 | 12 | 7.159 | 9.384 | 12 | 9.598 | 9.604 | 5.36 | 6.264 | 6.989 | 11 | 17 | 19 | 20 | 15 | 15 |
| Percentage of FiniteLivedIntangibleAssetsNet | 0.8 | 1.0 | 1.2 | 0.6 | 0.7 | 0.8 | 0.8 | 0.3 | 0.5 | 0.4 | 0.6 | 0.3 | 0.4 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 1.3 | 1.2 | 1.7 | 1.9 | 2.6 | 3.3 | 4.3 | 5.1 | 3.2 | 4.5 | 5.7 | 4.7 | 5.2 | 3.2 | 3.6 | 3.9 | 5.9 | 8.5 | 9.3 | 10.2 | 7.9 | 8.5 |
| Percentage of Assets | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.1 | 0.1 | 0.1 | 0.2 | 0.3 | 0.4 | 0.4 | 0.3 | 0.4 |
| Percentage of Assets us-gaap:OrderOrProductionBacklog | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 |
| Value | 67 | 69 | 68 | 63 | 64 | 67 | 67 | 58 | 59 | 59 | 61 | 60 | 62 | 57 | 58 | 40 | 41 | 41 | 43 | 43 | 44 | 41 | 42 | 43 | 42 | 43 | 40 | 37 | 37 | 36 | 32 | 28 | 29 | 29 | 29 | 29 | 28 | 27 | 27 | 25 |
| Percentage of FiniteLivedIntangibleAssetsNet | 16.4 | 16.0 | 16.0 | 16.9 | 16.5 | 16.4 | 15.8 | 22.3 | 21.7 | 21.5 | 21.8 | 23.6 | 23.1 | 21.9 | 21.4 | 22.1 | 22.7 | 22.4 | 21.8 | 21.3 | 20.9 | 20.3 | 19.1 | 18.5 | 17.3 | 16.9 | 18.1 | 17.8 | 17.5 | 17.8 | 17.5 | 17.1 | 16.8 | 16.5 | 15.4 | 14.9 | 13.9 | 13.7 | 14.1 | 14.2 |
| Percentage of Assets | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.7 | 0.8 | 0.8 | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 | 0.7 | 0.7 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.7 | 0.7 | 0.7 | 0.7 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 |
| Percentage of Assets us-gaap:TradeNames | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2019-01-01 |
| Value | 239 | 252 | 256 | 266 | 275 | 287 | 284 | 289 | 284 | 285 | 301 |
| Percentage of OperatingLeaseRightOfUseAsset | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 2.7 | 2.9 | 3.1 | 3.2 | 3.4 | 3.5 | 3.4 | 3.3 | 3.6 | 3.7 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 600 | 576 | 435 | 412 | 386 | 392 | 393 | 449 | 433 | 292 | 293 | 265 | 230 | 221 | 189 | 223 | 145 | 116 | 101 | 95 | 93 | 86 | 76 | 62 | 99 | 98 | 85 | 195 | 297 | 290 | 285 | 363 | 205 | 182 | 171 | 191 | 185 | 143 | 153 | 144 | 127 | 98 | 88 | 45 |
| Percentage of OtherAssetsNoncurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 6.9 | 6.7 | 5.2 | 5.0 | 4.8 | 4.8 | 4.7 | 5.1 | 5.4 | 3.8 | 4.1 | 3.7 | 3.4 | 3.3 | 2.9 | 3.4 | 2.5 | 2.1 | 1.9 | 1.7 | 1.8 | 1.6 | 1.5 | 1.2 | 1.6 | 1.6 | 1.4 | 3.1 | 5.0 | 5.0 | 4.9 | 6.6 | 4.0 | 3.5 | 3.3 | 3.7 | 3.8 | 3.0 | 3.3 | 3.2 | 3.0 | 2.3 | 2.0 | 1.1 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 1535 | 1506 | 1509 | 1543 | 1317 | 1360 | 1489 | 1648 | 1289 | 1238 | 1314 | 1340 | 1178 | 1040 | 1057 | 1214 | 969 | 995 | 922 | 928 | 811 | 791 | 782 | 938 | 875 | 874 | 877 | 884 | 734 | 772 | 802 | 757 | 611 | 666 | 707 | 771 | 635 | 580 | 618 | 527 | 410 | 394 | 415 | 422 |
| Percentage of AccountsPayableAndAccruedLiabilitiesCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 17.6 | 17.6 | 18.0 | 18.5 | 16.3 | 16.5 | 17.9 | 18.6 | 16.1 | 16.2 | 18.6 | 18.6 | 17.4 | 15.6 | 16.3 | 18.3 | 16.9 | 18.0 | 17.2 | 17.0 | 15.3 | 14.9 | 15.0 | 17.5 | 14.3 | 14.2 | 13.9 | 14.2 | 12.4 | 13.3 | 13.8 | 13.8 | 11.8 | 12.9 | 13.8 | 14.7 | 13.0 | 12.2 | 13.2 | 11.8 | 9.6 | 9.1 | 9.6 | 10.3 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 |
| Value | 32 | 58 | 13 |
| Percentage of AccruedIncomeTaxesCurrent | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.4 | 0.7 | 0.2 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2017-12-31 |
| Value | 503 | 499 | 528 | 537 | 613 | 591 | 606 | 540 | 471 | 403 | 425 | 433 |
| Percentage of ContractWithCustomerLiabilityCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 5.8 | 5.8 | 6.3 | 6.5 | 7.6 | 7.2 | 7.3 | 6.1 | 5.9 | 5.3 | 6.0 | 6.7 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2013-12-31 |
| Value | 11 | 10 | 14 | 9.221 | 71 | 73 | 74 | 75 | 52 | 44 | 65 | 22 | 15 | 2.775 | 1.22 | 2.804 | 1.375 | 3.99 | 7.563 | 5.061 | 5.603 | 4.154 | 7.067 | 2.35 | 2.638 | 9.44 | 8.876 | 1.181 |
| Percentage of DebtCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.1 | 0.1 | 0.2 | 0.1 | 0.9 | 0.9 | 0.9 | 0.9 | 0.7 | 0.6 | 0.9 | 0.3 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.2 | 0.1 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 2131 | 2100 | 2138 | 2178 | 2093 | 2115 | 2263 | 2357 | 1906 | 1778 | 1806 | 1816 | 1690 | 1549 | 1492 | 1592 | 1286 | 1264 | 1205 | 1245 | 1208 | 1235 | 1203 | 1340 | 1179 | 1124 | 1137 | 1128 | 967 | 982 | 1043 | 964 | 800 | 829 | 881 | 925 | 783 | 762 | 781 | 651 | 503 | 482 | 500 | 495 |
| Percentage of LiabilitiesCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 24.4 | 24.5 | 25.5 | 26.2 | 25.9 | 25.7 | 27.2 | 26.6 | 23.8 | 23.2 | 25.5 | 25.3 | 24.9 | 23.3 | 23.0 | 24.0 | 22.4 | 22.8 | 22.5 | 22.8 | 22.8 | 23.3 | 23.1 | 24.9 | 19.2 | 18.3 | 18.0 | 18.1 | 16.4 | 16.9 | 18.0 | 17.6 | 15.4 | 16.1 | 17.1 | 17.6 | 16.0 | 16.0 | 16.6 | 14.6 | 11.7 | 11.2 | 11.5 | 12.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2013-12-31 |
| Value | 11 | 10 | 10 | 6.334 | 70 | 70 | 68 | 68 | 34 | 33 | 32 | 2.467 | 2.577 | 2.775 | 1.22 | 2.804 | 1.375 | 3.99 | 4.828 | 5.061 | 5.603 | 4.154 | 2.238 | 2.35 | 2.638 | 5.306 | 3.82 | 1.181 |
| Percentage of LongTermDebtCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.1 | 0.1 | 0.1 | 0.1 | 0.9 | 0.9 | 0.8 | 0.8 | 0.4 | 0.4 | 0.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 81 | 83 | 85 | 88 | 90 | 91 | 92 | 93 | 92 | 92 |
| Percentage of OperatingLeaseLiabilityCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.9 | 1.0 | 1.0 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.2 | 1.2 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 255 | 310 | 132 | 107 | 139 | 99 | 81 | 97 | 100 | 81 | 64 | 45 | 37 |
| Percentage of OtherAccruedLiabilitiesCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 2.9 | 3.6 | 1.6 | 1.3 | 2.0 | 1.5 | 1.5 | 1.9 | 1.6 | 1.4 | 1.2 | 1.0 | 0.9 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2018-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 1353 | 1347 | 1174 | 1202 | 1315 | 1589 | 1292 | 1040 | 0.0 | 0.0 |
| Percentage of LongTermDebtAndCapitalLeaseObligations | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 0.0 |
| Percentage of Assets | 15.5 | 15.7 | 14.0 | 14.4 | 16.3 | 19.3 | 15.5 | 14.7 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2016-12-31 |
| Value | 187 | 170 | 166 | 206 | 220 | 217 | 214 | 279 | 276 | 253 | 219 | 209 | 196 | 196 | 179 | 211 | 192 |
| Percentage of DeferredIncomeTaxLiabilitiesNet | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 2.2 | 2.0 | 2.0 | 2.5 | 2.7 | 2.6 | 2.6 | 3.2 | 3.4 | 3.3 | 3.1 | 2.9 | 2.9 | 3.0 | 2.8 | 3.2 | 3.6 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 3.062 | 5.22 | 4.791 | 3.616 | 3.573 | 4.686 | 3.539 | 1.801 | 1.336 | 1.313 | 1.294 | 1.416 | 2.8 | 3.6 | 4.058 | 2.701 | 2.608 | 2.468 | 3.275 | 2.649 | 2.851 | 2.684 | 2.321 | 14 | 13 | 13 | 11 | 17 | 15 | 10 | 7.131 | 8.321 | 5.321 | 4.69 | 5.368 | 7.345 | 9.62 | 9.108 | 7.311 | 8.3 | 4.694 | 2.653 | 1.364 | 1.378 |
| Percentage of MinorityInterest | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.1 | 0.0 | 0.1 | 0.1 | 0.0 | 0.3 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.2 | 0.1 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.1 | 0.1 | 0.0 | 0.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2019-12-31 |
| Value | 5.2 | 4.8 | 3.6 | 3.6 | 3.5 |
| Percentage of MinorityInterest | 99.6 | 100.2 | 99.6 | 100.8 | 98.9 |
| Percentage of Assets | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 |
| Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 392 | 383 | 391 | 397 | 349 | 309 | 311 | 310 | 353 | 357 | 404 | 388 | 369 | 377 | 342 | 345 | 267 | 262 | 259 | 287 | 284 | 276 | 260 | 254 | 249 | 290 | 276 | 278 | 283 | 273 | 264 | 265 | 266 | 266 | 262 | 284 | 285 | 290 | 295 | 277 | 274 | 267 | 261 | 216 |
| Percentage of OtherLiabilitiesNoncurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 4.5 | 4.5 | 4.7 | 4.8 | 4.3 | 3.8 | 3.7 | 3.5 | 4.4 | 4.7 | 5.7 | 5.4 | 5.4 | 5.7 | 5.3 | 5.2 | 4.6 | 4.7 | 4.9 | 5.2 | 5.4 | 5.2 | 5.0 | 4.7 | 4.1 | 4.7 | 4.4 | 4.5 | 4.8 | 4.7 | 4.6 | 4.8 | 5.1 | 5.2 | 5.1 | 5.4 | 5.8 | 6.1 | 6.3 | 6.2 | 6.4 | 6.2 | 6.0 | 5.3 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2018-12-31 |
| Value | 224 | 224 | 238 | 223 | 220 | 217 | 212 | 210 |
| Percentage of OtherLiabilitiesNoncurrent | 57.3 | 58.6 | 60.8 | 56.2 | 62.9 | 70.2 | 68.4 | 51.9 |
| Percentage of Assets | 2.6 | 2.6 | 2.8 | 2.7 | 2.7 | 2.6 | 2.6 | 3.0 |
| Percentage of Assets pwr:EmployersLiabilityWorkersCompensationAutoLiabilityGeneralLiabilityAndGroupHealthCareClaims | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 166 | 176 | 178 | 185 | 192 | 200 | 196 | 197 | 192 | 193 |
| Percentage of OperatingLeaseLiabilityNoncurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 1.9 | 2.1 | 2.1 | 2.2 | 2.4 | 2.4 | 2.4 | 2.2 | 2.4 | 2.5 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 55 | 52 | 68 | 65 |
| Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.6 | 0.6 | 0.8 | 0.8 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 34 | 32 | 47 | 44 |
| Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.4 | 0.4 | 0.6 | 0.5 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 22 | 21 | 29 | 27 |
| Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.3 | 0.2 | 0.3 | 0.3 |
| Period End | 2020-12-31 |
| Value | 18 |
| Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive | 100.0 |
| Percentage of Assets | 0.2 |
| Period End | 2020-12-31 |
| Value | 30 |
| Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive | 100.0 |
| Percentage of Assets | 0.4 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2019-01-01 |
| Value | 247 | 259 | 263 | 273 | 288 | 291 | 284 | 285 | 301 |
| Percentage of OperatingLeaseLiability | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 2.8 | 3.0 | 3.1 | 3.3 | 3.5 | 3.3 | 3.6 | 3.7 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 269 | 283 | 288 | 298 |
| Percentage of LesseeOperatingLeaseLiabilityPaymentsDue | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 3.1 | 3.3 | 3.4 | 3.6 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 21 | 23 | 24 | 25 |
| Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.2 | 0.3 | 0.3 | 0.3 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 4486 | 4374 | 4344 | 4151 | 3914 | 3790 | 4050 | 3907 | 3774 | 3723 | 3604 | 3822 | 3690 | 3643 | 3791 | 3727 | 3506 | 3396 | 3339 | 3273 | 3200 | 3170 | 3085 | 3189 | 4196 | 4297 | 4514 | 4471 | 4385 | 4305 | 4234 | 4015 | 3882 | 3826 | 3766 | 3662 | 3536 | 3461 | 3381 | 3294 | 3298 | 3357 | 3365 | 3109 |
| Percentage of StockholdersEquity | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 51.4 | 51.1 | 51.7 | 49.9 | 48.4 | 46.1 | 48.6 | 44.1 | 47.1 | 48.7 | 50.9 | 53.2 | 54.4 | 54.8 | 58.5 | 56.1 | 61.0 | 61.3 | 62.4 | 59.8 | 60.4 | 59.9 | 59.2 | 59.4 | 68.4 | 70.0 | 71.5 | 71.8 | 74.2 | 73.9 | 73.1 | 73.1 | 74.8 | 74.2 | 73.3 | 69.7 | 72.2 | 72.8 | 72.0 | 73.8 | 76.8 | 77.6 | 77.5 | 75.5 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 | 2008-12-31 | 2007-12-31 |
| Value | 4489 | 4380 | 4348 | 4155 | 3918 | 3795 | 4053 | 3909 | 3776 | 3725 | 3605 | 3824 | 3693 | 3646 | 3795 | 3730 | 3509 | 3398 | 3342 | 3276 | 3203 | 3173 | 3087 | 3203 | 4209 | 4310 | 4525 | 4488 | 4401 | 4316 | 4241 | 4024 | 3887 | 3830 | 3771 | 3670 | 3546 | 3470 | 3389 | 3302 | 3303 | 3359 | 3366 | 3110 | 2682 | 2218 |
| Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 51.5 | 51.2 | 51.8 | 49.9 | 48.4 | 46.1 | 48.7 | 44.1 | 47.1 | 48.7 | 51.0 | 53.2 | 54.4 | 54.8 | 58.6 | 56.2 | 61.0 | 61.3 | 62.4 | 59.8 | 60.5 | 59.9 | 59.2 | 59.6 | 68.7 | 70.2 | 71.7 | 72.1 | 74.5 | 74.1 | 73.2 | 73.2 | 74.9 | 74.3 | 73.4 | 69.8 | 72.4 | 73.0 | 72.1 | 74.0 | 76.9 | 77.7 | 77.6 | 75.6 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 |
| Value | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.001 | 0.002 |
| Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of Assets | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of Assets pwr:CommonStockClassUndefined us-gaap:CommonStock | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 | 2009-12-31 | 2008-12-31 | 2007-12-31 |
| Value | -216.563 | -224.458 | -232.997 | -274.342 | -290.049 | -324.786 | -241.818 | -264.113 | -251.329 | -267.201 | -286.048 | -237.694 | -248.532 | -228.409 | -203.395 | -271.673 | -294.689 | -123.29 | -37.236 | 14 | 0.71 | 14 | 3.502 | -2.956 | 3.663 |
| Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | -4.8 | -5.1 | -5.4 | -6.6 | -7.4 | -8.6 | -6.0 | -6.8 | -6.7 | -7.2 | -7.9 | -6.2 | -6.7 | -6.3 | -5.4 | -8.1 | -9.5 | -2.7 | -0.9 | 0.4 | 0.0 | 0.4 | 0.1 | -0.1 | 0.2 |
| Percentage of Assets | -2.5 | -2.6 | -2.8 | -3.3 | -3.6 | -3.9 | -2.9 | -3.0 | -3.1 | -3.5 | -4.0 | -3.3 | -3.7 | -3.4 | -3.1 | -5.1 | -5.7 | -2.0 | -0.6 | 0.3 | 0.0 | 0.3 | 0.1 | 0.0 | 0.0 |
| Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 | 2009-12-31 | 2008-12-31 | 2007-12-31 |
| Value | 2208 | 2183 | 2170 | 2130 | 2063 | 2040 | 2024 | 2014 | 1999 | 1984 | 1967 | 1955 | 1934 | 1920 | 1889 | 1749 | 3497 | 3592 | 3416 | 3287 | 3216 | 3162 | 3065 | 2803 | 2486 |
| Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 49.2 | 49.9 | 49.9 | 51.3 | 52.7 | 53.8 | 49.9 | 51.5 | 52.9 | 53.3 | 54.6 | 51.1 | 52.4 | 52.7 | 49.8 | 52.3 | 113.3 | 79.4 | 80.6 | 87.1 | 94.9 | 93.9 | 98.6 | 104.5 | 112.1 |
| Percentage of Assets | 25.3 | 25.5 | 25.8 | 25.6 | 25.5 | 24.8 | 24.3 | 22.7 | 24.9 | 25.9 | 27.8 | 27.2 | 28.5 | 28.9 | 29.2 | 32.7 | 67.1 | 56.9 | 59.0 | 63.9 | 68.4 | 72.9 | 74.5 | 0.0 | 0.0 |
| Percentage of Assets us-gaap:AdditionalPaidInCapital | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 | 2009-12-31 | 2008-12-31 | 2007-12-31 |
| Value | 3.062 | 5.22 | 4.791 | 3.616 | 3.573 | 4.686 | 3.539 | 1.801 | 1.336 | 1.313 | 1.294 | 1.416 | 2.805 | 3.613 | 4.058 | 3.275 | 2.321 | 11 | 7.131 | 5.368 | 7.311 | 1.364 | 1.378 | 0.0 | 0.0 |
| Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.1 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of Assets | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.0 | 0.2 | 0.1 | 0.1 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of Assets us-gaap:NoncontrollingInterest | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 | 2009-12-31 | 2008-12-31 | 2007-12-31 |
| Value | 4486 | 4374 | 4344 | 4151 | 3914 | 3790 | 4050 | 3907 | 3774 | 3723 | 3604 | 3822 | 3690 | 3643 | 3791 | 3339 | 3085 | 4514 | 4234 | 3766 | 3381 | 3365 | 3109 | 2682 | 2218 |
| Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 99.9 | 99.9 | 99.9 | 99.9 | 99.9 | 99.9 | 99.9 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 99.9 | 99.9 | 99.9 | 99.9 | 99.9 | 99.8 | 99.8 | 99.9 | 99.8 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 51.4 | 51.1 | 51.7 | 49.9 | 48.4 | 46.1 | 48.6 | 44.1 | 47.1 | 48.7 | 50.9 | 53.2 | 54.4 | 54.8 | 58.5 | 62.4 | 59.2 | 71.5 | 73.1 | 73.3 | 72.0 | 77.5 | 75.5 | 0.0 | 0.0 |
| Percentage of Assets us-gaap:Parent | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 | 2009-12-31 | 2008-12-31 | 2007-12-31 |
| Value | 3454 | 3346 | 3264 | 3103 | 2948 | 2881 | 2854 | 2743 | 2612 | 2591 | 2477 | 2425 | 2301 | 2226 | 2191 | 1876 | 1677 | 1366 | 1070 | 668 | 361 | 229 | 75 | -86.326 | -243.891 |
| Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 76.9 | 76.4 | 75.1 | 74.7 | 75.2 | 75.9 | 70.4 | 70.2 | 69.2 | 69.6 | 68.7 | 63.4 | 62.3 | 61.1 | 57.7 | 56.1 | 54.3 | 30.2 | 25.2 | 17.7 | 10.7 | 6.8 | 2.4 | -3.2 | -11.0 |
| Percentage of Assets | 39.6 | 39.1 | 38.9 | 37.3 | 36.4 | 35.0 | 34.3 | 30.9 | 32.6 | 33.9 | 35.0 | 33.7 | 33.9 | 33.5 | 33.8 | 35.0 | 32.2 | 21.7 | 18.5 | 13.0 | 7.7 | 5.3 | 1.8 | 0.0 | 0.0 |
| Percentage of Assets us-gaap:RetainedEarnings | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 | 2009-12-31 | 2008-12-31 | 2007-12-31 |
| Value | -960.294 | -930.628 | -857.817 | -807.616 | -806.804 | -806.523 | -586.773 | -586.819 | -586.206 | -585.445 | -554.44 | -321.123 | -296.917 | -276.054 | -85.451 | -14.288 | -1795.257 | -321.936 | -215.24 | -203.149 | -196.493 | -40.36 | -35.738 | -32.182 | -27.68 |
| Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | -21.4 | -21.2 | -19.7 | -19.4 | -20.6 | -21.3 | -14.5 | -15.0 | -15.5 | -15.7 | -15.4 | -8.4 | -8.0 | -7.6 | -2.3 | -0.4 | -58.1 | -7.1 | -5.1 | -5.4 | -5.8 | -1.2 | -1.1 | -1.2 | -1.2 |
| Percentage of Assets | -11.0 | -10.9 | -10.2 | -9.7 | -10.0 | -9.8 | -7.0 | -6.6 | -7.3 | -7.7 | -7.8 | -4.5 | -4.4 | -4.1 | -1.3 | -0.3 | -34.4 | -5.1 | -3.7 | -4.0 | -4.2 | -0.9 | -0.9 | 0.0 | 0.0 |
| Percentage of Assets us-gaap:TreasuryStock | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 1000.0 | 1000.0 | 1000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 | 2000.0 |
| Percentage of CommonStockValue | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 2208 | 2183 | 2170 | 2130 | 2063 | 2040 | 2024 | 2014 | 1999 | 1984 | 1967 | 1955 | 1934 | 1920 | 1889 | 1878 | 1785 | 1764 | 1749 | 3689 | 3676 | 3516 | 3497 | 3489 | 3619 | 3609 | 3592 | 3517 | 3477 | 3463 | 3416 | 3338 | 3311 | 3298 | 3287 | 3276 | 3268 | 3244 | 3216 | 3201 | 3173 | 3166 | 3162 | 3065 |
| Percentage of AdditionalPaidInCapitalCommonStock | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 25.3 | 25.5 | 25.8 | 25.6 | 25.5 | 24.8 | 24.3 | 22.7 | 24.9 | 25.9 | 27.8 | 27.2 | 28.5 | 28.9 | 29.2 | 28.3 | 31.0 | 31.8 | 32.7 | 67.4 | 69.4 | 66.4 | 67.1 | 64.9 | 59.0 | 58.8 | 56.9 | 56.5 | 58.8 | 59.4 | 59.0 | 60.8 | 63.8 | 64.0 | 63.9 | 62.3 | 66.7 | 68.2 | 68.4 | 71.7 | 73.9 | 73.2 | 72.9 | 74.5 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 3454 | 3346 | 3264 | 3103 | 2948 | 2881 | 2854 | 2743 | 2612 | 2591 | 2477 | 2425 | 2301 | 2226 | 2191 | 2077 | 1988 | 1924 | 1876 | 1788 | 1714 | 1698 | 1677 | 1682 | 1466 | 1420 | 1366 | 1300 | 1205 | 1124 | 1070 | 903 | 810 | 740 | 668 | 569 | 472 | 407 | 361 | 295 | 243 | 211 | 229 | 75 |
| Percentage of RetainedEarningsAccumulatedDeficit | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 39.6 | 39.1 | 38.9 | 37.3 | 36.4 | 35.0 | 34.3 | 30.9 | 32.6 | 33.9 | 35.0 | 33.7 | 33.9 | 33.5 | 33.8 | 31.3 | 34.6 | 34.7 | 35.0 | 32.7 | 32.4 | 32.1 | 32.2 | 31.3 | 23.9 | 23.1 | 21.7 | 20.9 | 20.4 | 19.3 | 18.5 | 16.4 | 15.6 | 14.4 | 13.0 | 10.8 | 9.7 | 8.6 | 7.7 | 6.6 | 5.7 | 4.9 | 5.3 | 1.8 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | -216.563 | -224.458 | -232.997 | -274.342 | -290.049 | -324.786 | -241.818 | -264.113 | -251.329 | -267.201 | -286.048 | -237.694 | -248.532 | -228.409 | -203.395 | -192.187 | -231.167 | -257.852 | -271.673 | -242.825 | -231.02 | -234.103 | -294.689 | -264.844 | -197.339 | -212.244 | -123.29 | -73.944 | -23.875 | -55.219 | -37.236 | -11.319 | -24.439 | 0.71 | 14 | 19 | -2.522 | 12 | 0.71 | -5.528 | 23 | 25 | 14 | 3.502 |
| Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | -2.5 | -2.6 | -2.8 | -3.3 | -3.6 | -3.9 | -2.9 | -3.0 | -3.1 | -3.5 | -4.0 | -3.3 | -3.7 | -3.4 | -3.1 | -2.9 | -4.0 | -4.7 | -5.1 | -4.4 | -4.4 | -4.4 | -5.7 | -4.9 | -3.2 | -3.5 | -2.0 | -1.2 | -0.4 | -0.9 | -0.6 | -0.2 | -0.5 | 0.0 | 0.3 | 0.4 | -0.1 | 0.3 | 0.0 | -0.1 | 0.5 | 0.6 | 0.3 | 0.1 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 960 | 930 | 857 | 807 | 806 | 806 | 586 | 586 | 586 | 585 | 554 | 321 | 296 | 276 | 85 | 35 | 35 | 34 | 14 | 1960 | 1960 | 1809 | 1795 | 1718 | 692 | 520 | 321 | 273 | 272 | 226 | 215 | 215 | 215 | 212 | 203 | 202 | 202 | 202 | 196 | 196 | 141 | 46 | 40 | 35 |
| Percentage of TreasuryStockValue | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 11.0 | 10.9 | 10.2 | 9.7 | 10.0 | 9.8 | 7.0 | 6.6 | 7.3 | 7.7 | 7.8 | 4.5 | 4.4 | 4.1 | 1.3 | 0.5 | 0.6 | 0.6 | 0.3 | 35.8 | 37.0 | 34.2 | 34.4 | 32.0 | 11.3 | 8.5 | 5.1 | 4.4 | 4.6 | 3.9 | 3.7 | 3.9 | 4.1 | 4.1 | 4.0 | 3.9 | 4.1 | 4.3 | 4.2 | 4.4 | 3.3 | 1.1 | 0.9 | 0.9 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 3.062 | 5.22 | 4.791 | 3.616 | 3.573 | 4.686 | 3.539 | 1.801 | 1.336 | 1.313 | 1.294 | 1.416 | 2.8 | 3.6 | 4.058 | 2.701 | 2.608 | 2.468 | 3.275 | 2.649 | 2.851 | 2.684 | 2.321 | 14 | 13 | 13 | 11 | 17 | 15 | 10 | 7.131 | 8.321 | 5.321 | 4.69 | 5.368 | 7.345 | 9.62 | 9.108 | 7.311 | 8.3 | 4.694 | 2.653 | 1.364 | 1.378 |
| Percentage of MinorityInterest | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.1 | 0.0 | 0.1 | 0.1 | 0.0 | 0.3 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.2 | 0.1 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.1 | 0.1 | 0.0 | 0.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2019-12-31 |
| Value | 5.2 | 4.8 | 3.6 | 3.6 | 3.5 |
| Percentage of MinorityInterest | 99.6 | 100.2 | 99.6 | 100.8 | 98.9 |
| Percentage of Assets | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 |
| Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 |
| Value | 4.121 | 1.129 | 0.704 | 0.744 | 1.962 | 1.963 | 0.426 | 0.489 | 1.092 | 0.528 | 1.138 | 1.3 | 0.7 | 1.0 | 0.2 | 0.4 | 0.4 | 1.0 | 0.161 | 0.6 | 0.0 | 0.0 | 14 | 1.5 | 2.5 | 2.5 | 10 | 3.0 | 0.0 | 0.5 | 5.825 | 2.5 | 3.9 | 5.5 | 5.0 | 6.733 | 3.7 | 3.7 | -6.425 | 0.0 | -0.471 |
| Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 |
| Percentage of Assets | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 4.121 | 1.129 | 0.744 | 1.962 | 1.963 | 0.489 | 1.092 | 0.528 | 1.275 | 0.687 | 0.98 |
| Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 98.1 | 98.1 | 98.0 |
| Percentage of Assets | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of Assets us-gaap:NoncontrollingInterest | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 188 | 125 | 276 | 114 | 497 | 227 | 626 | 91 | -108.664 | -82.75 | 137 | 39 | 156 | 25 | 197 | 173 | -59.77 | 86 | -60.218 | 125 | 40 | 56 | -4.188 | 261 | -54.707 | 28 | 3.626 |
| Percentage of NetCashProvidedByUsedInOperatingActivities | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 6.3 | 4.6 | 9.5 | 3.8 | 19.8 | 8.2 | 20.1 | 2.7 | -3.8 | -2.9 | 4.4 | 1.3 | 5.9 | 1.1 | 8.0 | 6.7 | -3.5 | 5.7 | -4.2 | 8.3 | 3.3 | 5.6 | -0.5 | 23.6 | -4.5 | 3.3 | 0.5 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | -96371000.0 | -222810000.0 | -143020000.0 | -230560000.0 | -36614000.0 | -89133000.0 | -10472000.0 | -391800000.0 | -68171000.0 | -147160000.0 | -80987000.0 | -136430000.0 | -93354000.0 | -91898000.0 | -6520000.0 | -451550000.0 | -70271000.0 | -119390000.0 | -80955000.0 | -64440000.0 | -96668000.0 | -85814000.0 | -34295000.0 | -161460000.0 | -24527000.0 | -24186000.0 | -42867000.0 |
| Percentage of NetCashProvidedByUsedInInvestingActivities | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | -3.2 | -8.2 | -4.9 | -7.6 | -1.5 | -3.2 | -0.3 | -11.7 | -2.4 | -5.2 | -2.6 | -4.6 | -3.5 | -3.8 | -0.3 | -17.3 | -4.2 | -7.9 | -5.7 | -4.3 | -7.7 | -8.5 | -4.0 | -14.6 | -2.0 | -2.8 | -5.7 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | -81.753 | 112 | -166.151 | -198.504 | -310.636 | 73 | -531.062 | 307 | 165 | 236 | -89.43 | 90 | -44.822 | 26 | -142.27 | 270 | 79 | 32 | 0.899 | -5.189 | -60.481 | -95.387 | 2.324 | -0.984 | -0.022 | -143.564 | -1.135 |
| Percentage of NetCashProvidedByUsedInFinancingActivities | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | -2.7 | 4.2 | -5.7 | -6.6 | -12.4 | 2.7 | -17.1 | 9.2 | 5.8 | 8.4 | -2.9 | 3.0 | -1.7 | 1.1 | -5.7 | 10.4 | 4.7 | 2.2 | 0.1 | -0.3 | -4.8 | -9.4 | 0.3 | -0.1 | -0.0 | -16.5 | -0.2 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 |
| Value | 12 | 15 | -32.294 | -313.751 | 151 | 211 | 85 | 6.394 | -11.375 | 6.236 | -34.918 | -6.563 | 19 | -38.495 | 48 | -7.374 | -4.924 | -6.878 |
| Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 0.4 | 0.6 | -1.1 | -10.4 | 6.0 | 7.7 | 2.7 | 0.2 | -0.4 | 0.2 | -1.1 | -0.2 | 0.7 | -1.6 | 2.0 | -0.3 | -0.2 | -0.3 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 14 | 2.494 | -40.79 | -17.443 | -5.993 | 4.21 | -56.217 | 4.167 | 19 | 24 | 55 | -7.391 | -2.872 | 16 | -33.78 | -1.98 | 3.666 | -0.036 | 6.543 | -17.096 | -7.858 | 2.716 | -12.851 | -7.544 | 0.28 | 3.495 | 38 | -10.613 | -2.338 | 8.086 | -5.963 | -15.481 | 6.096 | -1.122 | 10 | 9.118 | 1.298 | 1.621 | -14.758 | 11 | -1.391 | 11 | 9.378 | 21 | -6.007 | 11 |
| Percentage of DeferredIncomeTaxExpenseBenefit | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 5.709 | 0.435 | -3.073 | -8.655 | -2.5 | 4.368 | -8.57 | -1.511 | -13.091 | -28.996 | 14 | 8.436 | -8.277 | 13 | -5.383 | -13.525 | 3.529 | 1.269 | -0.219 | 12 | 2.256 | -4.537 | 10 | 9.605 | 9.869 | 3.122 | -1.698 | -1.058 | 4.858 | 1.923 | -3.486 | -5.396 | 3.393 | -0.497 | -8.632 | -2.003 | -14.435 | -1.365 | -2.916 | 11 | 9.15 | 1.145 | 4.199 | 5.693 | 7.583 | -0.348 |
| Percentage of IncreaseDecreaseInInventories | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 |
| Value | 0.978 | 8.2 | 2.032 | 7.813 | 6.591 | 5.662 | 0.945 | 4.957 | 123 | 5.553 | 3.062 | 2.291 | 8.642 | -2.663 | -5.045 | 6.621 | -12.388 | -7.046 |
| Percentage of IncreaseDecreaseInOtherOperatingCapitalNet | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 188 | 125 | 276 | 114 | 497 | 227 | 626 | 91 | -108.664 | -82.75 | 137 | 39 | 156 | 25 | 197 | 173 | -59.77 | 86 | -60.218 | 125 | 40 | 56 | -4.188 | 261 | -54.707 | 28 | 3.626 |
| Percentage of NetCashProvidedByUsedInOperatingActivities | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 6.3 | 4.6 | 9.5 | 3.8 | 19.8 | 8.2 | 20.1 | 2.7 | -3.8 | -2.9 | 4.4 | 1.3 | 5.9 | 1.1 | 8.0 | 6.7 | -3.5 | 5.7 | -4.2 | 8.3 | 3.3 | 5.6 | -0.5 | 23.6 | -4.5 | 3.3 | 0.5 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 |
| Value | 117 | 89 | 170 | 162 | 73 | 38 | 118 | 136 | 27 | 120 | 56 | 124 |
| Percentage of NetIncomeLoss | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 3.9 | 3.3 | 5.8 | 5.4 | 3.0 | 1.4 | 3.8 | 4.1 | 1.0 | 4.3 | 1.8 | 4.2 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 118 | 91 | 171 | 163 | 74 | 41 | 120 | 137 | 28 | 121 | 57 | 124 | 74 | 38 | 115 | 89 | 64 | 48 | 88 | 74 | 16 | 20 | -4.882 | 218 | 49 | 58 | 70 | 100 | 85 | 58 | 171 | 98 | 74 | 76 | 102 | 100 | 69 | 49 | 70 | 55 | 34 | -16.305 | 34 | 63 | 33 | 24 |
| Percentage of ProfitLoss | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 4.0 | 3.4 | 5.9 | 5.4 | 3.0 | 1.5 | 3.9 | 4.1 | 1.0 | 4.3 | 1.9 | 4.2 | 2.8 | 1.6 | 4.7 | 3.4 | 2.9 | 2.2 | 4.2 | 3.6 | 0.9 | 1.2 | -0.3 | 11.3 | 2.6 | 3.1 | 3.5 | 4.6 | 4.6 | 3.3 | 9.4 | 6.0 | 5.1 | 4.8 | 6.1 | 6.0 | 4.6 | 3.5 | 4.7 | 4.4 | 3.4 | -1.9 | 3.1 | 5.3 | 3.8 | 3.2 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 1.938 | 1.558 | 0.787 | 0.849 | 2.817 | 0.954 | 1.115 | 0.547 | 0.348 | 0.341 | 0.997 |
| Percentage of ProfitLoss | 1.6 | 1.7 | 0.5 | 1.1 | 6.8 | 0.7 | 3.9 | 0.5 | 0.3 | 0.5 | 2.6 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 0.1 | 0.1 | 0.0 | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 117 | 89 | 162 | 73 | 38 | 136 | 27 | 120 | 124 | 74 | 37 |
| Percentage of ProfitLoss | 98.4 | 98.3 | 99.5 | 98.9 | 93.2 | 99.3 | 96.1 | 99.5 | 99.7 | 99.5 | 97.4 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 3.9 | 3.3 | 5.4 | 3.0 | 1.4 | 4.1 | 1.0 | 4.3 | 4.2 | 2.8 | 1.6 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 117 | 89 | 162 | 73 | 38 | 136 | 27 | 120 | 124 | 74 | 37 |
| Percentage of ProfitLoss | 98.4 | 98.3 | 99.5 | 98.9 | 93.2 | 99.3 | 96.1 | 99.5 | 99.7 | 99.5 | 97.4 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | 3.9 | 3.3 | 5.4 | 3.0 | 1.4 | 4.1 | 1.0 | 4.3 | 4.2 | 2.8 | 1.6 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 23 | 18 | 33 | 21 | 21 | 14 | 10 | 13 | 14 | 13 | 12 | 11 | 13 | 14 | 12 | 10 | 11 | 11 | 9.875 | 9.746 | 9.503 | 13 | 8.231 | 9.523 | 9.714 | 9.96 | 10 | 7.772 | 10 | 10 | 8.129 | 7.669 | 12 | 8.036 | 4.277 | 7.138 | 8.094 | 6.481 | 5.408 | 4.716 | 5.953 | 5.541 | 5.583 | 5.703 | 5.76 | 6.002 |
| Percentage of ShareBasedCompensation | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 |
| Value | 7.4 | 3.6 | 18 | 6.7 | 7.8 | 2.9 | 1.6 | 1.3 | 1.9 | 1.7 | 1.2 | 1.2 | 2.7 |
| Percentage of ShareBasedCompensation | 30.9 | 19.3 | 55.5 | 31.3 | 35.5 | 19.4 | 14.6 | 9.6 | 13.1 | 13.1 | 9.5 | 10.3 | 20.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 |
| Value | 16 | 15 | 14 | 14 | 14 | 12 | 9.3 | 12 | 12 | 11 | 11 | 10 | 10 | 11 | 9.8 | 9.9 | 10 | 11 |
| Percentage of ShareBasedCompensation | 69.0 | 80.8 | 44.1 | 69.1 | 64.6 | 80.5 | 85.1 | 90.5 | 87.0 | 86.8 | 90.7 | 89.4 | 80.1 | 76.3 | 81.0 | 90.6 | 87.4 | 94.4 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | -96371000.0 | -222810000.0 | -143020000.0 | -230560000.0 | -36614000.0 | -89133000.0 | -10472000.0 | -391800000.0 | -68171000.0 | -147160000.0 | -80987000.0 | -136430000.0 | -93354000.0 | -91898000.0 | -6520000.0 | -451550000.0 | -70271000.0 | -119390000.0 | -80955000.0 | -64440000.0 | -96668000.0 | -85814000.0 | -34295000.0 | -161460000.0 | -24527000.0 | -24186000.0 | -42867000.0 |
| Percentage of NetCashProvidedByUsedInInvestingActivities | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | -3.2 | -8.2 | -4.9 | -7.6 | -1.5 | -3.2 | -0.3 | -11.7 | -2.4 | -5.2 | -2.6 | -4.6 | -3.5 | -3.8 | -0.3 | -17.3 | -4.2 | -7.9 | -5.7 | -4.3 | -7.7 | -8.5 | -4.0 | -14.6 | -2.0 | -2.8 | -5.7 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 74 | 83 | 93 | 50 | 48 | 68 | 54 | 66 | 72 | 68 | 70 | 74 | 81 | 66 | 76 | 62 | 58 | 47 | 68 | 35 | 60 | 47 | 41 | 47 | 62 | 66 | 74 | 79 | 75 | 71 | 50 | 51 | 81 | 57 | 49 | 71 | 49 | 35 | 39 | 43 | 52 | 37 | 35 | 31 | 37 | 43 |
| Percentage of PaymentsToAcquirePropertyPlantAndEquipment | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2013-06-30 | 2011-09-30 |
| Value | 0.342 | 113 | 5.318 | 0.778 | 3.068 | 5.692 | 8.061 | 1.065 | 0.127 | 37 | 34 | 0.881 | 0.731 | 0.838 | 3.017 | 40 | 36 | 4.0 |
| Percentage of PaymentsToAcquireInvestments | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | -81.753 | 112 | -166.151 | -198.504 | -310.636 | 73 | -531.062 | 307 | 165 | 236 | -89.43 | 90 | -44.822 | 26 | -142.27 | 270 | 79 | 32 | 0.899 | -5.189 | -60.481 | -95.387 | 2.324 | -0.984 | -0.022 | -143.564 | -1.135 |
| Percentage of NetCashProvidedByUsedInFinancingActivities | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerExcludingAssessedTax | -2.7 | 4.2 | -5.7 | -6.6 | -12.4 | 2.7 | -17.1 | 9.2 | 5.8 | 8.4 | -2.9 | 3.0 | -1.7 | 1.1 | -5.7 | 10.4 | 4.7 | 2.2 | 0.1 | -0.3 | -4.8 | -9.4 | 0.3 | -0.1 | -0.0 | -16.5 | -0.2 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 8.415 | 8.798 | 7.346 | 7.001 | 7.16 | 7.384 | 5.851 | 5.803 | 5.83 | 5.752 |
| Percentage of PaymentsOfDividendsCommonStock | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2011-09-30 | 2011-06-30 |
| Value | 29 | 19 | 47 | 0.0 | 0.0 | 200 | 0.0 | 0.0 | 0.159 | 19 | 226 | 26 | 15 | 173 | 50 | 0.0 | 0.0 | 0.0 | 76 | 1175 | 172 | 182 | 48 | 0.0 | 45 | 55 | 94 |
| Percentage of PaymentsForRepurchaseOfCommonStock | 100.0 | 100.0 | 100.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 |
| Value | 2.9 |
| Percentage of DebtInstrumentInterestRateStatedPercentage | 100.0 |
| Percentage of LongTermDebtAndCapitalLeaseObligations | 0.0 |
| Percentage of LongTermDebtAndCapitalLeaseObligations pwr:SeniorNotesDue2030 us-gaap:SeniorNotes | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 |
| Value | 2000.0 | 172000.0 | 0 | 0 | 0 | 400000.0 | 0 | 100000.0 | 0 | 300000.0 | -100000.0 | 0 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod | 100.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 100.0 | 0.0 | 100.0 | 100.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 |
| Value | 31000.0 | 898000.0 | 0 | 100000.0 | 0 | 1900000.0 | 0 | 500000.0 | 100000.0 | 1500000.0 | 100000.0 | 200000.0 | 0 | 1300000.0 | 100000.0 | 200000.0 | 100000.0 | 1100000.0 | 0 | 0 | 100000.0 | 1700000.0 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod | 1550.0 | 522.1 | 0.0 | 0.0 | 0.0 | 475.0 | 0.0 | 500.0 | 0.0 | 500.0 | -100.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 148 | 202 | 202 | 152 | 182 | 181 | 269 | 199 | 345 | 330 | 298 |
| Percentage of DeferredTaxLiabilities | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 285 | 177 | 108 | 135 | 189 | 174 | 174 | 171 | 131 | 130 | 110 |
| Percentage of DeferredTaxAssetsNet | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2010-12-31 | 2009-12-31 | 2008-12-31 |
| Value | 39 | 35 | 33 | 40 | 40 | 41 | 36 | 35 | 54 | 51 | 48 | 51 | 52 | 50 | 47 | 50 | 45 | 59 |
| Percentage of UnrecognizedTaxBenefits | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 | 2009-12-31 |
| Value | 43 | 104 | 67 | 19 | 14 | 16 | 15 | 15 | 9.344 | 8.783 | 11 | 8.6 |
| Percentage of DeferredTaxAssetsValuationAllowance | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 |
| Value | 1.0 |
| Percentage of UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 |
| Value | 0.0 | -4.247 | 1.334 | -1.761 | -1.62 | -2.799 | -1.205 | -11.171 | 7.304 | -23.22 | 13 | 7.124 | 12 | 0.0 | 0.0 | 0.0 |
| Percentage of ProceedsFromRepaymentsOfShortTermDebt | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 |
| Value | 21 | 21 | -149.514 | 20 | 17 | 18 | 22 | 18 | 12 | 12 | 12 | 12 | 10 | 10 | 12 | 12 | 10 | 10 | 7.892 | 8.094 | 8.141 | 7.65 | 10 | 8.694 | 8.743 | 8.906 | 15 | 9.663 | 8.615 | 8.326 | 11 | 7.07 | 8.175 | 9.236 | 8.244 | 10 | 9.549 | 9.398 | 11 | 8.514 | 10 | 8.907 | 23 | 14 |
| Percentage of BusinessAcquisitionsProFormaAmortizationOfIntangibleAssets | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 |
| Value | 449 | 373 | 488 | 509 | 355 | 333 | 453 | 495 | 320 | 364 | 419 | 433 | 333 | 302 | 336 | 369 | 334 | 299 | 307 | 302 | 200 | 203 | 226 | 236 | 227 | 253 | 342 | 354 | 281 | 271 | 362 | 275 | 280 | 277 | 226 | 280 | 235 | 195 | 208 | 196 | 172 | 83 | 176 | 206 |
| Percentage of BusinessAcquisitionsProFormaGrossProfit | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 116 | 89 | 178 | 162 | 73 | 39 | 118 | 144 | 26 | 120 | 64 | 134 | 76 | 40 |
| Percentage of BusinessAcquisitionsProFormaNetIncomeLossAttributableToCommonStockNetOfTax | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 |
| Value | 271 | 243 | -1724.015 | 251 | 227 | 231 | 263 | 250 | 225 | 232 | 212 | 226 | 206 | 216 | 211 | 210 | 208 | 207 | 173 | 164 | 156 | 159 | 152 | 146 | 150 | 150 | 213 | 200 | 139 | 174 | 163 | 126 | 133 | 128 | 89 | 124 | 114 | 106 | 102 | 93 | 96 | 96 | 102 | 88 |
| Percentage of BusinessAcquisitionsProFormaSellingGeneralAndAdministrativeExpenses | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 131 | 201 | 0.0 | 19 |
| Percentage of BusinessCombinationCashConsiderationTransferredOrToBeTransferred | 100.0 | 100.0 | 0.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 20 | 3.5 |
| Percentage of BusinessCombinationCashConsiderationTransferredOrToBeTransferred | 0.0 | 0.0 |
| Period End | 2021-07-31 |
| Value | 35 |
| Percentage of BusinessCombinationCashConsiderationTransferredOrToBeTransferred | 0.0 |
| Period End | 2020-09-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2018-09-30 |
| Value | -48.7 | -24.1 | -29.2 | 20 | -30.7 |
| Percentage of ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimate | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-09-30 |
| Value | 12 |
| Percentage of ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimate | -24.8 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 0.0 | 14 |
| Percentage of ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimate | 0.0 | 0.0 |
| Period End | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | -32.9 | -2.5 | -11.6 |
| Percentage of ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimate | 67.6 | 0.0 | 48.1 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 |
| Value | 12.8 | -11.5 | 0 | 9.6 | 0.05 | -7.3 | 0 | 0.062 | -0.064 | 0.05 | 0 | 0.072 |
| Percentage of ContractWithCustomerCumulativeCatchUpAdjustmentToGrossProfitChangeInEstimatePercent | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 |
| Period End | 2020-09-30 |
| Value | 70.0 |
| Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueRemainingInterestWithOptionToPurchase | 100.0 |
| Period End | 2021-03-31 | 2019-06-30 | 2019-03-31 | 2018-06-30 | 2018-03-31 |
| Value | 25.0 | 0 | 0.27 | 0 | 0.2 |
| Percentage of FairValueInputsCustomerAttritionRates | 100.0 | 0.0 | 100.0 | 0.0 | 100.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2018-12-31 |
| Value | 0 | 42.59 | 0 | 0.41 | 0 | 0 |
| Percentage of FairValueInputsCustomerAttritionRates | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2018-12-31 |
| Value | 0 | 9.77 | 0 | 0.23 | 0 | 0 |
| Percentage of FairValueInputsCustomerAttritionRates | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 |
| Value | 2.0 | 10.71 | 0 | 0.29 | -5.94 |
| Percentage of FairValueInputsCustomerAttritionRates | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-03-31 | 2019-06-30 | 2019-03-31 | 2018-06-30 | 2018-03-31 |
| Value | 22.0 | 0 | 0.21 | 0 | 0.25 |
| Percentage of FairValueInputsRateOfReturn | 100.0 | 0.0 | 100.0 | 0.0 | 100.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2018-12-31 |
| Value | 2.0 | 22.77 | 0 | 0.23 | 0 | 0 |
| Percentage of FairValueInputsRateOfReturn | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2018-12-31 |
| Value | 0 | 18.8 | 0 | 0.2 | 0 | 0 |
| Percentage of FairValueInputsRateOfReturn | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 |
| Value | 0 | 19.78 | 0 | 0.22 | -23.76 |
| Percentage of FairValueInputsRateOfReturn | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2019-06-30 |
| Value | 7.45 | 5.183 | 5.138 | 5.12 | 1.045 | 0.0 |
| Percentage of IncomeLossFromEquityMethodInvestmentsIntegralUnconsolidatedAffiliates | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 |
| Period End | 2021-06-30 | 2020-06-30 |
| Value | 3900000.0 | 6500000.0 |
| Percentage of IncreaseDecreaseInDeferredCompensationPlanAssets | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2020-06-30 |
| Value | 3600000.0 | 6400000.0 |
| Percentage of IncreaseDecreaseInDeferredCompensationPlanLiabilities | 100.0 | 100.0 |
| Period End | 2020-09-30 |
| Value | 18000.0 |
| Percentage of OperationAndMaintenanceAgreementLengthOfSystem | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 7000.0 | 7000.0 | 0 | 0 | 736000.0 | -6000.0 | -19000.0 | -16000.0 |
| Percentage of OtherComprehensiveIncomeLossOtherNetOfTax | 100.0 | 100.0 | 0.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 1000.0 | 2000.0 | 865000.0 | 0 | 0 | 0 | -228000.0 | 17000.0 | 5000.0 | 6000.0 | -677000.0 | 0 | 0 | 0 |
| Percentage of OtherComprehensiveIncomeLossOtherTax | 100.0 | 100.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 |
| Value | 76.0 | 83.0 | 2.0 | 82.0 | 0.71 | 0.77 | -74.25 | 71.0 | 0.73 | 0.8 | 0 | 0.83 | 0.84 | 0.88 | 0.01 | 0.83 | 0.75 | 0.84 | -0.04 | 0.8 | 0.96 | 0.96 |
| Percentage of PercentageOfForeignRevenue | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 100.0 | 1.0 | 1.0 | 0 | 1.0 | 1.0 | 1.0 | 0 | 1.0 | 1.0 | 1.0 |
| Percentage of PercentageOfTotalRevenues | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 40.6 | 36.1 | 0.6 | 37.7 | 0.366 | 0.353 | -0.005 | 0.371 | 0.359 | 0.319 | 0.006 | 0.363 | 0.383 | 0.253 |
| Percentage of PercentageOfTotalRevenues | 40.6 | 0.0 | 0.0 | 0.0 | 36.6 | 35.3 | 0.0 | 37.1 | 35.9 | 31.9 | 0.0 | 36.3 | 38.3 | 25.3 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 34.1 | 39.4 | -0.7 | 39.0 | 0.407 | 0.398 | 0.058 | 0.369 | 0.252 | 0.34 | -0.001 | 0.415 | 0.389 | 0.507 |
| Percentage of PercentageOfTotalRevenues | 34.1 | 0.0 | 0.0 | 0.0 | 40.7 | 39.8 | 0.0 | 36.9 | 25.2 | 34.0 | 0.0 | 41.5 | 38.9 | 50.7 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 25.3 | 24.5 | 0.1 | 23.3 | 0.227 | 0.249 | -0.053 | 0.26 | 0.389 | 0.341 | -0.005 | 0.222 | 0.228 | 0.24 |
| Percentage of PercentageOfTotalRevenues | 25.3 | 0.0 | 0.0 | 0.0 | 22.7 | 24.9 | 0.0 | 26.0 | 38.9 | 34.1 | 0.0 | 22.2 | 22.8 | 24.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 2.1 | 2.0 | -0.1 | 1.6 | 0.022 | 0.018 | 0.001 | 0.017 | 0.013 | 0.015 | -0.004 | 0.025 | 0.043 | 0.049 |
| Percentage of PercentageOfTotalRevenues | 2.1 | 0.0 | 0.0 | 0.0 | 2.2 | 1.8 | 0.0 | 1.7 | 1.3 | 1.5 | 0.0 | 2.5 | 4.3 | 4.9 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 10.9 | 15.3 | 0.1 | 10.6 | 0.085 | 0.139 | 0.005 | 0.102 | 0.071 | 0.173 | 0.007 | 0.175 | 0.119 | 0.223 |
| Percentage of PercentageOfTotalRevenues | 10.9 | 0.0 | 0.0 | 0.0 | 8.5 | 13.9 | 0.0 | 10.2 | 7.1 | 17.3 | 0.0 | 17.5 | 11.9 | 22.3 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 85.7 | 81.6 | 0.1 | 87.1 | 0.881 | 0.821 | -0.009 | 0.857 | 0.903 | 0.784 | -0.005 | 0.777 | 0.825 | 0.708 |
| Percentage of PercentageOfTotalRevenues | 85.7 | 0.0 | 0.0 | 0.0 | 88.1 | 82.1 | 0.0 | 85.7 | 90.3 | 78.4 | 0.0 | 77.7 | 82.5 | 70.8 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | -0.1 | 0.7 | 0.012 | 0.022 | 0.003 | 0.024 | 0.013 | 0.028 | 0.002 | 0.023 | 0.013 | 0.02 |
| Percentage of PercentageOfTotalRevenues | 0.0 | 0.0 | 1.2 | 2.2 | 0.0 | 2.4 | 1.3 | 2.8 | 0.0 | 2.3 | 1.3 | 2.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-06-30 | 2020-03-31 |
| Value | 1.3 | 1.1 | 1.2 | 2.2 |
| Percentage of PercentageOfTotalRevenues | 1.3 | 0.0 | 120.0 | 220.0 |
| Period End | 2021-06-30 | 2020-06-30 |
| Value | 5577000.0 | 160000.0 |
| Percentage of RentalPurchaseOptionAssetObtainedInExchangeForRentalPurchaseOptionLiability | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 43.9 | 44.4 | -0.5 | 47.9 | 0.484 | 0.481 | -0.008 | 0.513 | 0.491 | 0.49 | 0.017 | 0.586 | 0.549 | 0.542 |
| Percentage of RevenueFromContractWithCustomerPercentageOfRevenueRecognizedOverTime | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 0 | 36.9 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionForfeitedInPeriodWeightedAverageGrantDateFairValue | 0.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 7.23 | 37.37 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionForfeitedInPeriodWeightedAverageGrantDateFairValue | 0.0 | 101.3 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 160 | 157 | 160 | 147 | 170 | 212 | 194 | 200 |
| Percentage of ShortTermLeaseAndVariableLeaseCost | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 0.613 | 0.14 | 0.604 | 0.11 | 0.569 | 0.292 | 5.522 | 1.631 | 0.351 | 0.186 |
| Percentage of AllowanceForDoubtfulAccountsReceivableWriteOffs | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 |
| Value | 844000.0 | 846000.0 | 3070000.0 | 588000.0 | 589000.0 | 466000.0 |
| Percentage of AmortizationOfFinancingCostsAndDiscounts | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 |
| Value | 2.319 | 13 | 49 | 58 | 8.0 | 58 |
| Percentage of AssetImpairmentCharges | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-07-31 |
| Value | 0.032822 |
| Percentage of BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 |
| Value | 0.83 | 0.64 | 1.16 | 0.53 | 0.27 | 0.99 | 0.18 | 0.83 | 0.83 | 0.49 | 0.24 | 0.58 | 0.42 | 0.32 | 0.38 | 0.45 | 0.31 | 0.22 | 0.32 | 0.25 | 0.17 | -0.07 | 0.22 | 0.29 |
| Percentage of BusinessAcquisitionProFormaEarningsPerShareBasic | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 |
| Value | 0.81 | 0.62 | 1.13 | 0.52 | 0.27 | 0.98 | 0.18 | 0.82 | 0.83 | 0.48 | 0.24 | 0.58 | 0.41 | 0.32 | 0.56 | 0.47 | 0.11 | 0.12 | 0.03 | 0.23 | 0.15 | 0.25 | 0.3 | 0.43 | 0.37 | 0.24 | 0.85 | 0.44 | 0.38 | 0.39 | 0.38 | 0.45 | 0.31 | 0.22 | 0.32 | 0.25 | 0.17 | -0.07 | 0.22 | 0.29 |
| Percentage of BusinessAcquisitionProFormaEarningsPerShareDiluted | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 |
| Value | 118 | 91 | 180 | 163 | 74 | 42 | 120 | 145 | 27 | 121 | 57 | 127 | 74 | 39 | 118 | 93 | 66 | 50 |
| Percentage of BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 |
| Value | 3000 | 2704 | 2988 | 3034 | 2506 | 2766 | 3183 | 3446 | 2848 | 2811 | 3112 | 3004 | 2656 | 2421 | 2512 | 2655 | 2323 | 2303 | 2102 | 2042 | 1792 | 1721 | 1913 | 1943 | 1873 | 1893 | 2474 | 2180 | 1864 | 1766 | 2020 | 1664 | 1672 | 1785 | 1293 | 1685 | 1516 | 1425 | 1531 | 1258 | 1067 | 889 | 1160 | 1281 |
| Percentage of BusinessAcquisitionsProFormaRevenue | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 6.1 | 10 | 0.0 | 0.8 |
| Percentage of BusinessCombinationAcquisitionRelatedCosts | 100.0 | 100.0 | 0.0 | 100.0 |
| Period End | 2021-06-30 |
| Value | 0.2 |
| Percentage of BusinessCombinationAcquisitionRelatedCosts | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 138 | 246 | 0.0 | 25 |
| Percentage of BusinessCombinationConsiderationTransferred1 | 100.0 | 100.0 | 0.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 20 | 3.5 |
| Percentage of BusinessCombinationConsiderationTransferred1 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 7.4 | 45 | 0.0 | 4.2 |
| Percentage of BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable | 100.0 | 100.0 | 0.0 | 100.0 |
| Period End | 2021-07-31 |
| Value | 2.9 |
| Percentage of BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 |
| Value | -0.21 | -0.363 | 0.121 | 0.078 | -2.238 | 2.758 | 5.34 | 3.777 | 4.371 |
| Percentage of BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | -2300000.0 | 1000000.0 | 900000.0 | -900000.0 |
| Percentage of BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 |
| Value | 300000.0 |
| Percentage of BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 70 | 55 | 5.9 | 1.9 |
| Percentage of BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 |
| Value | 1.2 |
| Percentage of BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual | 0.0 |
| Period End | 2021-05-27 | 2021-06-30 | 2021-03-25 | 2021-03-31 | 2020-12-11 | 2020-08-26 | 2020-05-28 | 2020-06-30 | 2020-03-26 | 2020-03-31 | 2019-12-11 | 2019-12-31 | 2019-08-28 | 2019-09-30 | 2019-05-24 | 2019-06-30 | 2019-03-21 | 2019-03-31 | 2018-12-06 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 0.06 | 0.06 | 0.06 | 0.06 | 0.06 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 | 0.04 | 0 | 0 | 0 |
| Percentage of CommonStockDividendsPerShareDeclared | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 86 | 245 | 65 | 262 | 32 | 79 | 264 |
| Percentage of ContractWithCustomerLiabilityRevenueRecognized | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 50 | 54 | -58.2 | 17 | 47 | 15 | 26 |
| Percentage of ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 |
| Value | 1.9 | 2.18 | -0.03 | 1.57 | 0.0165 | 0.0311 | -0.0008 | 0.0386 | 0.0388 | 0.0392 | 0.0003 | 0.037 | 0.0362 | 0.0334 | 0.001 | 0.0266 | 0.0249 | 0.0261 | -0.0001 | 0.0216 | 0.0217 |
| Percentage of DebtInstrumentInterestRateDuringPeriod | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 |
| Value | 300000.0 | 500000.0 | 300000.0 | 200000.0 | 200000.0 | 500000.0 | 200000.0 | 200000.0 |
| Percentage of DeferredCompensationArrangementWithIndividualContributionsByEmployer | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 62 | 62 | 60 | 56 | 54 | 54 | 56 | 55 | 53 | 52 | 52 | 51 | 50 | 48 | 48 | 48 | 44 | 42 | 43 | 42 | 42 | 41 | 41 | 40 | 41 | 44 | 42 | 40 | 37 | 36 | 35 | 33 | 33 | 31 | 26 | 32 | 31 | 30 | 29 | 29 | 29 | 28 | 27 | 26 | 27 | 26 |
| Percentage of Depreciation | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 |
| Value | 4.535 | 4.375 | 4.864 | 4.294 | 4.107 | 4.162 | 4.641 | 5.445 | 4.363 | 4.41 | 4.564 | 4.559 | 4.296 | 3.754 | 4.443 | 3.693 |
| Percentage of Depreciation | 7.2 | 7.0 | 8.1 | 7.6 | 7.5 | 7.6 | 8.2 | 9.8 | 8.1 | 8.4 | 8.7 | 8.8 | 8.6 | 7.7 | 9.3 | 7.6 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 37 | 36 | 33 | 30 | 28 | 28 | 29 | 27 | 26 | 25 | 24 | 24 | 23 | 24 |
| Percentage of Depreciation | 59.1 | 59.0 | 55.8 | 54.5 | 53.2 | 52.8 | 51.5 | 49.0 | 49.6 | 48.4 | 46.9 | 47.1 | 46.5 | 49.8 |
| Period End | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 23 | 22 | 22 | 20 |
| Percentage of Depreciation | 37.9 | 39.3 | 39.6 | 40.3 | 41.2 | 42.2 | 43.2 | 44.3 | 44.1 | 44.9 | 42.5 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-06-30 | 2020-03-31 |
| Value | 21 | 21 | 21 | 21 |
| Percentage of Depreciation | 33.7 | 34.0 | 39.3 | 39.6 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 8.65 | 8.429 | 7.244 | 7.182 | 7.184 | 5.564 | 6.233 | 5.896 |
| Percentage of DividendsCash | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 8.65 | 8.429 | 7.244 | 7.182 | 7.184 | 5.564 | 6.233 | 5.896 |
| Percentage of DividendsCash | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 8.65 | 8.429 | 7.244 | 7.182 | 7.184 | 5.564 | 6.233 | 5.896 |
| Percentage of DividendsCash | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-05-27 | 2021-03-25 | 2020-12-11 | 2020-08-26 | 2020-05-28 | 2020-03-26 | 2019-12-11 | 2019-08-28 | 2019-05-24 | 2019-03-21 | 2018-12-06 |
| Value | 8650000.0 | 8429000.0 | 8933000.0 | 7244000.0 | 7182000.0 | 7184000.0 | 7371000.0 | 5564000.0 | 6233000.0 | 5900000.0 | 5800000.0 |
| Percentage of DividendsCommonStockCash | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 |
| Value | 1276000.0 | 11000.0 | 449000.0 | 986000.0 | -449000.0 | -87000.0 | 82000.0 | -118000.0 | -1673000.0 | -199000.0 | 1113000.0 | 691000.0 | 136000.0 | 475000.0 | 88000.0 | 1095000.0 |
| Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 |
| Value | 500000.0 | 7400000.0 | 0 | 800000.0 | 200000.0 | 3300000.0 | 0 | 400000.0 | 2100000.0 | 2900000.0 | -200000.0 | 100000.0 | 3800000.0 | 2200000.0 | 1100000.0 | 1400000.0 | 3800000.0 | 2400000.0 | 200000.0 | 1000000.0 | 2400000.0 | 1000000.0 | 500000.0 | 1200000.0 | 1600000.0 | 900000.0 | 200000.0 | 700000.0 | 100000.0 | 2100000.0 | 1000000.0 | 200000.0 | 100000.0 | 500000.0 | 1400000.0 | 0 |
| Percentage of EmployeeServiceShareBasedCompensationCashFlowEffectCashUsedToSettleAwards | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2019-06-30 |
| Value | 0 | 0 | 9311000.0 | 0 |
| Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount | 0.0 | 0.0 | 100.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 |
| Value | 65 | 0.0 | 10.0 |
| Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements | 100.0 | 0.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 23000.0 | 27000.0 | 57000.0 | 16000.0 | 17000.0 | 17000.0 | 10000.0 | 15000.0 | 18000.0 | 21000.0 |
| Percentage of FinanceLeaseInterestExpense | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 23000.0 | 27000.0 | 58000.0 | 16000.0 | 17000.0 | 17000.0 | 11000.0 | 15000.0 | 17000.0 | 21000.0 |
| Percentage of FinanceLeaseInterestPaymentOnLiability | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 271000.0 | 249000.0 | 673000.0 | 102000.0 | 222000.0 | 201000.0 | 312000.0 | 411000.0 | 482000.0 | 630000.0 |
| Percentage of FinanceLeasePrincipalPayments | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 230000.0 | 244000.0 | 719000.0 | 53000.0 | 260000.0 | 202000.0 | 417000.0 | 320000.0 | 283000.0 | 373000.0 |
| Percentage of FinanceLeaseRightOfUseAssetAmortization | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 19 | 73 | 0.0 | 4.561 |
| Percentage of FinitelivedIntangibleAssetsAcquired1 | 100.0 | 100.0 | 0.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 9.353 | 0.393 |
| Percentage of FinitelivedIntangibleAssetsAcquired1 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 17 | 60 | 0.0 | 3.18 |
| Percentage of FinitelivedIntangibleAssetsAcquired1 | 93.9 | 82.1 | 0.0 | 69.7 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 0.0 | 3.169 | 0.0 | 0.827 |
| Percentage of FinitelivedIntangibleAssetsAcquired1 | 0.0 | 4.3 | 0.0 | 18.1 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 0.0 | 3.817 | 0.0 | 0.205 |
| Percentage of FinitelivedIntangibleAssetsAcquired1 | 0.0 | 5.2 | 0.0 | 4.5 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 1.164 | 6.141 | 0.0 | 0.349 |
| Percentage of FinitelivedIntangibleAssetsAcquired1 | 6.1 | 8.4 | 0.0 | 7.7 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 0.0 | 0.218 |
| Percentage of FinitelivedIntangibleAssetsAcquired1 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 0.325 | 0.125 |
| Percentage of FinitelivedIntangibleAssetsAcquired1 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 0.0 | 0.05 |
| Percentage of FinitelivedIntangibleAssetsAcquired1 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 4872000.0 | 4982000.0 | -1162000.0 | 2246000.0 | 1158000.0 | 814000.0 | 2335000.0 | 992000.0 | 2411000.0 | 59000.0 | -1691000.0 | 340000.0 | -982000.0 | -963000.0 | -68000.0 | 451000.0 | 2007000.0 | -1841000.0 | 187000.0 | 1094000.0 | -654000.0 | 107000.0 | 1929000.0 | 734000.0 | 7000.0 | 102000.0 | -205000.0 | 873000.0 | 797000.0 | 305000.0 | 936000.0 | 859000.0 | 371000.0 | 282000.0 | 112000.0 | 253000.0 | 584000.0 | 21000.0 | -410000.0 | -510000.0 | 58000.0 | 8000.0 | -486000.0 | -3287000.0 | -1307000.0 | 430000.0 |
| Percentage of GainLossOnSaleOfPropertyPlantEquipment | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 | 2020-03-31 | 2019-03-31 | 2018-03-31 | 2016-03-31 | 2015-03-31 | 2014-12-31 | 2014-03-31 | 2013-03-31 | 2012-03-31 |
| Value | 1.78 | 10 | 21 | 41 | 26 | 18 | 56 | 54 | 1.052 | 42 |
| Percentage of GoodwillAcquiredDuringPeriod | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 |
| Value | 1.78 |
| Percentage of GoodwillAcquiredDuringPeriod | 100.0 |
| Period End | 2021-03-31 | 2020-03-31 | 2019-03-31 |
| Value | 1.78 | 3.768 | 21 |
| Percentage of GoodwillAcquiredDuringPeriod | 100.0 | 37.4 | 100.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 |
| Value | 2.559 | 15 | 6.634 | 14 | -26.033 | 6.726 | -4.825 | 3.769 | 5.24 | -13.548 | 2.607 | -6.73 | -7.438 | -2.439 | 10 | 18 | -5.874 | 9.581 | 2.104 |
| Percentage of GoodwillForeignCurrencyTranslationGainLoss | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 2.239 | 7.152 | 3.372 | 8.611 | -16.143 | 4.192 | -2.909 | 2.646 | 3.47 |
| Percentage of GoodwillForeignCurrencyTranslationGainLoss | 87.5 | 46.8 | 50.8 | 59.4 | 62.0 | 62.3 | 60.3 | 70.2 | 66.2 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 0.32 | 8.146 | 3.262 | 5.883 | -9.89 | 2.534 | -1.916 | 1.123 | 1.77 |
| Percentage of GoodwillForeignCurrencyTranslationGainLoss | 12.5 | 53.2 | 49.2 | 40.6 | 38.0 | 37.7 | 39.7 | 29.8 | 33.8 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2018-12-31 | 2018-09-30 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2011-12-31 |
| Value | -1264000.0 | -1000.0 | -40000.0 | 2036000.0 | -246000.0 | 0 | 0 | 0 | 0 | 0 | 0 | -619000.0 | -659000.0 | -64000.0 | 293000.0 | 0 | -214000.0 | -4000.0 | 0 | -6295000.0 | -1818000.0 | -11000.0 |
| Percentage of GoodwillPurchaseAccountingAdjustments | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 |
| Value | -1264000.0 | -1000.0 | -40000.0 | 2017000.0 | -246000.0 | 0 | 0 |
| Percentage of GoodwillPurchaseAccountingAdjustments | 100.0 | 100.0 | 100.0 | 99.1 | 100.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 |
| Value | 0 | 0 | 19000.0 | 0 | 0 | 0 |
| Percentage of GoodwillPurchaseAccountingAdjustments | -0.0 | -0.0 | 0.9 | -0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2012-12-31 | 2012-09-30 |
| Value | 8.108 | 5.868 | 3.516 | 5.26 | -4.784 | -2.683 | 12 | 1.931 | 1.757 | 60 | -9.891 | -17.835 | -11.798 | -13.343 | -5.439 | -2.755 | -2.148 | -0.603 | -0.331 | -0.089 | -0.378 | -0.181 | -0.152 | 0.0 | -0.314 | 0.0 | 0.0 | -0.332 | 0.776 | 1.308 |
| Percentage of IncomeLossFromEquityMethodInvestments | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 0.0 | 0.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 0.0 | -5.5 | -3.1 |
| Percentage of IncomeLossFromEquityMethodInvestments | 0.0 | 115.0 | 115.5 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | -76.512 | -35.521 | -33.517 | 322 | -237.79 | -122.33 | -480.784 | 479 | 56 | 159 | 130 | 169 | 45 | 131 | 26 | 272 | 31 | 94 | -58.315 | 177 | -105.399 | -158.995 | -72.557 | 59 | -17.779 | -122.432 | -137.46 | 220 | 90 | 61 | -23.225 | 126 | 1.684 | -30.843 | -5.675 | 302 | 19 | 25 | 59 | 196 | 45 | 9.849 | -85.609 | 113 | -2.972 | -16.797 |
| Percentage of IncreaseDecreaseInAccountsAndNotesReceivable | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 |
| Value | 150 | 62 | -31.833 | -21.95 | -83.677 | -16.372 | -55.565 | -34.016 | 107 | -5.267 | -96.158 | 125 | 56 | 6.184 | -142.998 | -20.981 |
| Percentage of IncreaseDecreaseInContractWithCustomerAsset | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 |
| Value | 3.595 | -29.225 | -10.803 | -79.964 | 19 | -12.886 | 61 | 68 | 67 | -23.38 | -22.699 | -48.386 | -6.212 | 77 | 59 | 43 |
| Percentage of IncreaseDecreaseInContractWithCustomerLiability | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 |
| Value | 65 | 59 | -36.654 | 124 | -325.708 | -89.47 | -466.752 | 137 | 235 | 250 | 115 | 170 | -3.15 | 117 | 10 | -13.828 | 126 | 117 | -18.137 | 185 | 3.448 | -120.311 | -121.705 | -12.499 |
| Percentage of IncreaseDecreaseInOperatingCapital | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 63 | -4.78 | -32.319 | 235 | 22 | -110.394 | -189.054 | 250 | 44 | -66.678 | -46.362 | 170 | 151 | -27.211 | -187.662 | 203 | -55.848 | 69 | -34.744 | 105 | 32 | -29.716 | -114.265 | 60 | 22 | 27 | -95.372 | 147 | -49.916 | -50.999 | 18 | 95 | -29.896 | -47.634 | -6.605 | 132 | 47 | -50.061 | 113 | 102 | 22 | -17.161 | -42.039 | 59 | 56 | -94.758 |
| Percentage of IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 52 | -9.948 | -13.385 | -19.655 | 33 | -84.078 | -50.147 | 8.048 | 73 | 29 | -4.815 | -12.991 | 39 | 18 | 8.937 | -10.495 | 29 | 4.282 | -17.156 | -19.664 | 13 | -1.826 | -1.17 | -14.305 | 7.27 | 3.242 | 13 | 0.127 | 22 | 0.368 | -0.014 | 22 | -1.88 | -13.548 | -4.919 | 27 | 0.571 | -6.286 | -7.705 | -28.119 | -10.575 | 36 | 16 | 8.568 | -3.588 | -7.697 |
| Percentage of IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 |
| Value | 600000.0 | 1100000.0 | -100000.0 | 1400000.0 | 1500000.0 | 2300000.0 | -100000.0 | 2800000.0 | 3000000.0 | 2800000.0 | 100000.0 | 2600000.0 | 2600000.0 | 2700000.0 | -200000.0 | 2300000.0 | 2300000.0 |
| Percentage of IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2010-12-31 | 2010-09-30 | 2010-06-30 |
| Value | 4331000.0 | 4326000.0 | 492000.0 | 3821000.0 | 3665000.0 | 2333000.0 | 404000.0 | 1525000.0 | 1306000.0 | 1348000.0 | 152000.0 | 1125000.0 | 1270000.0 | 1010000.0 | 34000.0 | 1136000.0 | 1075000.0 | 0 | 1000.0 | 0 | 2000.0 | 3000.0 | -5000.0 | 10000.0 | 12000.0 | 17000.0 | -3000.0 | 25000.0 | 30000.0 | 42000.0 | -2000.0 | 50000.0 | 54000.0 | 59000.0 | -28000.0 | 92000.0 | 100000.0 | 111000.0 | -2000.0 | 109000.0 | 129000.0 | 77000.0 | 136000.0 | 151000.0 |
| Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 2909000.0 | 117000.0 | 1335000.0 | 80000.0 | 275000.0 | 759000.0 | 165000.0 | 186000.0 | 267000.0 | 309000.0 | 427000.0 | 322000.0 | 660000.0 | 146000.0 | 185000.0 | 196000.0 | 164000.0 | 287000.0 | 392000.0 | 874000.0 | 641000.0 | 516000.0 | 375000.0 | 346000.0 | 319000.0 | 455000.0 | 695000.0 | 902000.0 | 599000.0 | 1545000.0 | 1150000.0 | 1139000.0 | 569000.0 | 522000.0 | 292000.0 | 384000.0 | 387000.0 | 408000.0 | 305000.0 | 226000.0 | 249000.0 | 286000.0 | 251000.0 | 418000.0 | 379000.0 | 369000.0 |
| Percentage of InvestmentIncomeInterest | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 187 | 185 | 206 | 190 | 178 | 200 | 248 | 242 | 225 | 231 |
| Percentage of LeaseCost | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 |
| Value | 449 | 214 | -304.116 | 1255 | 1481 | 1458 | 48 | 1721 | 1524 | 1264 | 77 | 899 | 922 | 684 | 48 | 760 | 518 | 409 | 3.641 | 469 | 426 | 472 | 75 | 285 | 171 | 92 | 10 | 35 | 23 |
| Percentage of LineOfCreditFacilityAverageOutstandingAmount | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 |
| Value | 576 | 363 | 0.0 | 1462 | 1742 | 2024 | 64 | 1987 | 1637 | 1453 | 246 | 1003 | 1053 | 936 | 0.0 | 917 | 601 | 490 | 0.0 | 518 | 465 | 518 | 136 | 470 | 330 | 123 | 0.0 | 130 | 83 |
| Percentage of LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 |
| Period End | 2020-07-31 |
| Value | 8800000.0 |
| Percentage of LossContingencyDamagesAwardedValue | 100.0 |
| Period End | 2020-07-31 |
| Value | 9500000.0 |
| Percentage of LossContingencyDamagesAwardedValue | 108.0 |
| Period End | 2020-08-31 | 2019-04-30 |
| Value | 44 | 45 |
| Percentage of LossContingencyDamagesSoughtValue | 100.0 | 100.0 |
| Period End | 2021-07-31 |
| Value | 37 |
| Percentage of LossContingencyDamagesSoughtValue | 0.0 |
| Period End | 2020-12-31 |
| Value | -3800000.0 |
| Percentage of NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 26 | 27 | 27 | 29 | 29 | 29 | 30 | 30 | 30 | 30 |
| Percentage of OperatingLeaseCost | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 3.2 | 4.8 | 1.1 | 4.5 | 4.3 | 4.4 | 4.4 | 4.2 | 4.0 | 4.1 | 4.0 | 3.4 | 3.4 | 3.2 |
| Percentage of OperatingLeaseExpense | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 26 | 27 | 27 | 29 | 29 | 29 | 30 | 29 | 29 | 29 |
| Percentage of OperatingLeasePayments | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 1054000.0 | 576000.0 | 217000.0 | 1505000.0 | 3084000.0 | 353000.0 | 5033000.0 | -1383000.0 | 3135000.0 | -1217000.0 |
| Percentage of OtherNoncashIncomeExpense | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-06-30 | 2019-03-31 |
| Value | 0.0 | 0.263 | 51 | 0.0 | 9.41 | 0.989 | 0.0 | 0.0 |
| Percentage of PaymentForContingentConsiderationLiabilityFinancingActivities | 0.0 | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2019-06-30 |
| Value | 13 | 0.0 | 0.59 | 0.0 |
| Percentage of PaymentForContingentConsiderationLiabilityOperatingActivities | 100.0 | 0.0 | 100.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2019-12-31 | 2019-09-30 | 2018-12-31 | 2018-09-30 | 2011-12-31 | 2011-09-30 |
| Value | 3.295 | 7.794 | 0.273 | 2.036 | 1.976 | 0.0 | 0.122 | 4.005 |
| Percentage of PaymentsOfDebtIssuanceCosts | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 |
| Value | 4.121 | 1.129 | 0.735 | 0.744 | 1.962 | 1.963 | 0.417 | 0.489 | 1.092 | 0.528 | 1.096 | 1.275 | 0.687 | 0.98 | 0.195 | 0.443 | 0.383 | 0.98 | 0.149 | 0.612 | 0.0 | 14 | 1.5 | 2.5 | 2.503 | 10 | 3.0 | 0.006 | 0.5 | 5.81 | 2.503 | 3.858 | 5.454 | 5.0 | 6.733 | 3.747 | 2.49 | 5.483 | 0.0 | 0.471 |
| Percentage of PaymentsOfDividendsMinorityInterest | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 |
| Value | 36 | 23 | 1.044 | 0.83 | 7.687 | 15 | 0.189 | 0.611 | 1.666 | 13 | 0.55 | 0.464 | 1.583 | 12 | 0.409 | 0.329 | 1.613 | 16 | 0.85 | 0.258 | 1.16 | 6.072 |
| Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-07-31 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 |
| Value | 35 | 32 | 80 | 187 | 1.643 | 22 | 2.801 | 329 | 3.78 | 51 | 0.0 | 48 | 15 | 30 | 0.695 | 352 | 6.108 | 1.527 | 0.83 | 28 | 0.035 | 39 | 10 | 29 | 37 | 34 | 100 | 81 | 3.215 | 76 | 159 | 123 | 123 | 0.0 | 0.977 | 0.0 | 0.0 | 26 | 41 | 25 | 53 |
| Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 0.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 |
| Value | 0.324 | 0.0 | 0.0 | 0.441 | 0.0 | 0.042 | 0.025 | 11 | 0.0 | 3.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of PaymentsToAcquireIntangibleAssets | 100.0 | 0.0 | 0.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-06-30 | 2019-03-31 |
| Value | 7.721 | 0.203 | 8.387 | 2.474 | 0.0 | 0.0 |
| Percentage of ProceedsFromDivestitureOfBusinesses | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 0.655 | 6.137 | 12 | 1.087 | 2.119 | 2.339 | 1.116 | 4.73 | 0.05 | 1.278 | 1.639 | 1.207 | 1.345 | 1.018 | 2.118 | 5.058 | 0.463 | 2.206 | 3.315 | 2.554 | 0.785 | 0.894 | 5.764 | 7.286 | 10 | 0.445 | 0.721 | 5.363 | 1.054 | 0.238 | 1.187 | 0.297 | 0.336 | 0.006 | 1.429 | 0.384 | 0.988 | 1.305 | 3.602 | 0.111 | 2.614 | 0.175 | 1.555 | 2.266 | 4.164 | 1.722 |
| Percentage of ProceedsFromIncomeTaxRefunds | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 |
| Value | 273000.0 | 7000.0 | 271000.0 | 73000.0 | 0 | 198000.0 | 1463000.0 | 490000.0 | 3000.0 | 8000.0 | 204000.0 | 145000.0 | 365000.0 | 0 | 442000.0 | 136000.0 | 0 | 597000.0 |
| Percentage of ProceedsFromInsuranceSettlementInvestingActivities | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 0.0 | 100.0 |
| Period End | 2020-12-31 | 2020-09-30 |
| Value | 0.0 | 990 |
| Percentage of ProceedsFromIssuanceOfDebt | 0.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 |
| Value | 1055 | 828 | 529 | 478 | 500 | 1474 | 1341 | 2118 | 1068 | 1647 | 1598 | 855 | 1062 | 974 | 871 | 812 | 550 | 697 | 684 | 709 | 696 | 654 | 1091 | 1485 | 625 | 147 | 226 | 375 | 333 | 2.37 | 277 | 425 | 349 |
| Percentage of ProceedsFromLongTermLinesOfCredit | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 2.807 | 0.21 | 11 | 2.538 | 0.032 | 46 | 0.0 | 0.0 | 0.0 | 3.921 | 0.0 | 0.078 | 0.706 |
| Percentage of ProceedsFromSaleMaturityAndCollectionsOfInvestments | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 11 | 7.223 | 16 | 5.844 | 7.826 | 4.79 | 6.895 | 4.854 | 8.55 | 10 | 13 | 5.642 | 7.224 | 5.769 | 6.924 | 4.08 | 7.543 | 4.801 | 4.872 | 6.849 | 5.165 | 5.089 | 8.692 | 8.471 | 7.733 | 1.282 | 4.952 | 2.926 | 4.057 | 2.493 | 6.187 | 4.508 | 2.555 | 1.544 | 2.581 | 2.326 | 6.256 | 1.199 | 0.523 | 4.797 | 1.39 | 3.193 | 4.397 | 7.147 | 13 | 0.932 |
| Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 23 | 0.043 | 0.746 | 1.566 | 1.071 | 0.273 | 7.237 | 0.773 | 0.416 | 2.823 | 4.034 | 2.151 | 0.139 | 0.845 | -0.846 | 0.007 | 0.061 | 0.865 | 0.033 | 0.351 | 0.056 | -0.983 | 0.165 | -0.645 | 0.126 | 0.578 | 0.29 | 0.011 | 1.062 | 0.048 | 1.404 | 0.17 | 0.154 | 1.508 | 0.866 | 0.468 | 0.623 | 1.736 | 0.308 | 0.019 | 0.403 | 0.433 | 0.646 | 0.186 | -0.926 | -0.048 |
| Percentage of ProvisionForDoubtfulAccounts | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 |
| Value | 23 |
| Percentage of ProvisionForDoubtfulAccounts | 98.8 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 |
| Value | 1058 | 656 | 584 | 1648 | 782 | 1171 | 1864 | 1789 | 901 | 1347 | 1471 | 743 | 1101 | 760 | 959 | 541 | 491 | 631 | 808 | 625 | 696 | 729 | 960 | 1342 | 528 | 103 | 231 | 298 | 333 | 2.37 | 402 | 339 | 310 |
| Percentage of RepaymentsOfLongTermLinesOfCredit | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 0.757 | 0.857 | 1.335 | 0.652 | 0.537 | 0.446 | 0.364 | 1.356 | 0.222 | 0.261 | 0.231 | 0.336 | 0.385 | 0.346 | 1.92 | 0.558 | 1.354 | 1.529 | 0.552 | 0.86 | 0.692 | 4.855 | 0.668 | 0.656 | 0.959 | 0.4 | 0.436 | 19 | 0.38 | 10 | 0.329 | 0.227 | 0.009 | 0.014 | 0.033 | 0.034 | 1.47 | 2.185 | 1.991 | 0.041 | 0.041 | 0.062 | 3.294 |
| Percentage of RepaymentsOfOtherLongTermDebt | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 118000.0 | 1505000.0 | 226000.0 | 275000.0 | 17000.0 | 866000.0 | 60000.0 | 10000.0 | 220000.0 | 401000.0 |
| Percentage of RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 6.678 | 17 | 12 | 16 | 10 | 29 | 20 | 32 | 27 | 15 |
| Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 0 | 11000.0 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod | 0.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 43000.0 | 42000.0 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod | 0.0 | 381.8 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 |
| Value | 0.16 | 90.28 | 0 | 0.04 | 0 | 34.56 | 0 | 0 | -24.66 | 40.15 | 0 | 0 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue | 100.0 | 100.0 | 0.0 | 100.0 | 0.0 | 100.0 | 0.0 | 0.0 | 100.0 | 100.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 |
| Value | 0.36 | 82.21 | 0.26 | 49.52 | 35.9 | 39.07 | 0.17 | 34.07 | 36.5 | 35.85 | -0.06 | 33.73 | 36.38 | 34.46 | -0.14 | 32.76 | 33.32 | 38.18 | 0.09 | 24.92 | 23.59 | 21.95 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue | 225.0 | 91.1 | 0.0 | 123800.0 | 0.0 | 113.0 | 0.0 | 0.0 | -148.0 | 89.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 |
| Value | 0 | 268000.0 | 0 | 0 | 0 | 200000.0 | 0 | 0 | 0 | 200000.0 | 0 | 0 | 0 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 |
| Value | 41000.0 | 1334000.0 | 100000.0 | 0 | 100000.0 | 1100000.0 | 0 | 100000.0 | 100000.0 | 1200000.0 | -30000.0 | 0 | 100000.0 | 1200000.0 | -11000.0 | 0 | 100000.0 | 1300000.0 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod | 0.0 | 497.8 | 0.0 | 0.0 | 0.0 | 550.0 | 0.0 | 0.0 | 0.0 | 600.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 |
| Value | 3.9 | 111 | 2.8 | 2.9 | 2.2 | 43 | 1.9 | 2.2 | 3.1 | 41 | 0.9 | 1.5 | 3.8 | 42 | 0.2 | 1.1 | 3.8 | 50 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 0 | 38.28 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue | 0.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 0 | 36.85 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue | 0.0 | 96.3 |
| Period End | 2021-03-25 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-26 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 |
| Value | 36.0 | 36.0 | 0 | 33.66 | 0 | 34.0 | 0.34 | 0 | 0 | 0 | 0.25 | 0 | 0 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate | 100.0 | 100.0 | 0.0 | 100.0 | 0.0 | 100.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 |
| Period End | 2021-03-25 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-26 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 |
| Value | 0.26 | 0.26 | 0 | 0.3465 | 0 | 0.35 | 0.0035 | 0 | 0 | 0 | 0.0243 | 0 | 0 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate | 100.0 | 100.0 | 0.0 | 100.0 | 0.0 | 100.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 |
| Value | 0 | 500000.0 | 0 | 0 | 0 | 500000.0 | 0 | 0 | 0 | 400000.0 | 0 | 0 | 0 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 64600.0 | 1368700.0 | 65826.0 | 1124500.0 | 46097.0 | 85590.0 | 903080.0 | 33124.0 | 82468.0 | 847460.0 |
| Percentage of StockIssuedDuringPeriodSharesShareBasedCompensation | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-09-30 | 2020-03-31 | 2019-09-30 | 2018-09-30 | 2018-03-31 |
| Value | 45 | 4.329 | 1.791 | 9.333 | 13 |
| Percentage of StockIssuedDuringPeriodValueAcquisitions | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-09-30 | 2020-03-31 | 2019-09-30 | 2018-09-30 | 2018-03-31 |
| Value | 45 | 4.329 | 1.791 | 9.333 | 13 |
| Percentage of StockIssuedDuringPeriodValueAcquisitions | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-09-30 | 2020-03-31 | 2019-09-30 | 2018-09-30 | 2018-03-31 |
| Value | 45 | 4.329 | 1.791 | 9.333 | 13 |
| Percentage of StockIssuedDuringPeriodValueAcquisitions | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 24 | -41.399 | 20 | 22 | -8.306 | 12 | 14 | -1.901 | 11 | 13 | 1.302 |
| Percentage of StockIssuedDuringPeriodValueShareBasedCompensation | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 25 | 13 | 21 | 22 | 11 | 13 | 14 | 17 | 11 | 13 | 17 |
| Percentage of StockIssuedDuringPeriodValueShareBasedCompensation | 100.9 | -33.1 | 103.9 | 101.3 | -137.8 | 104.7 | 105.4 | -902.2 | 104.1 | 106.7 | 1381.9 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 24 | -41.399 | 20 | 22 | -8.306 | 12 | 14 | -1.901 | 11 | 13 | 1.302 |
| Percentage of StockIssuedDuringPeriodValueShareBasedCompensation | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | -0.216 | -55.101 | -0.812 | -0.281 | -19.75 | -0.613 | -0.761 | -19.052 | -0.455 | -0.87 | -16.69 |
| Percentage of StockIssuedDuringPeriodValueShareBasedCompensation | -0.9 | 133.1 | -3.9 | -1.3 | 237.8 | -4.7 | -5.4 | 1002.2 | -4.1 | -6.7 | -1281.9 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 0.314 | 0.222 | 0.72 | 0.0 | 5.96 | 0.0 | 0.0 | 0.0 | 0.376 | 7.652 | 0.701 | 0.595 | 4.969 |
| Percentage of StockRepurchasedDuringPeriodShares | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 29 | 17 | 49 | 0.0 | 200 | 0.0 | 0.0 | 0.0 | 11 | 233 | 23 | 19 | 173 |
| Percentage of StockRepurchasedDuringPeriodValue | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2020-03-31 |
| Value | -25000.0 | 223000.0 |
| Percentage of StockholdersEquityOther | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2020-03-31 |
| Value | -25000.0 | -293000.0 |
| Percentage of StockholdersEquityOther | 100.0 | -131.4 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 |
| Value | 0.0 | 0.0 | 0.1 | 0.6 | 0.0 | 0.0 | 0.1 | 0.4 | 0.0 | 0.0 | 0.0 | 0.4 | 0.0 | 0.0 | 0.0 | 0.5 | 0.0 | 0.0 | 0.324959 | 0.004864 | 0.002687 | 0.075141 | 0.296874 | 0.08095 | 0.002103 | 0.003588 | 0.283366 | 0.020239 | 0.001642 | 0.006441 | 0.271482 | 0.020477 | 0.005195 |
| Percentage of TreasuryStockSharesAcquired | 0.0 | 0.0 | 100.0 | 100.0 | 0.0 | 0.0 | 100.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-03-31 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 0.313725 | 0.222081 | 5.960134 | 0.375536 | 0.700628 | 0.594671 | 4.969261 |
| Percentage of TreasuryStockSharesAcquired | 0.0 | 0.0 | 993.4 | 93.9 | 0.0 | 0.0 | 1242.3 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-03-31 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2011-08-31 |
| Value | 29 | 17 | 200 | 11 | 23 | 19 | 173 | 149 |
| Percentage of TreasuryStockValueAcquiredCostMethod | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 |
| Value | 0.0 | 0.1 | 3.5 | -0.7 | 0.0 | -0.1 | 3.8 | -0.8 | 0.0 | 0.0 | 3.3 | -0.8 | 0.0 | 0.2 | 3.2 | -1.4 | 0.3 | 0.4 | 7.4 |
| Percentage of TreasuryStockValueAcquiredCostMethod | 0.0 | 0.0 | 1.8 | 0.0 | 0.0 | 0.0 | 31.8 | 0.0 | 0.0 | 0.0 | 1.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2010-09-30 |
| Value | 1.0 | 0.8 | 0.5 | 23 | 0.7 | 0.6 | 0.8 | 15 | 0.5 | 0.5 | 0.8 | 13 | 0.4 | 0.4 | 0.7 | 17 | 0.8 | 0.3 | 11 | 0.1 | 0.1 | 2.2 | 9.7 | 0.5 | 0.1 | 0.1 | 6.0 | 0.4 | 0.0 | 0.2 | 6.0 | 0.3 | 0.1 |
| Percentage of TreasuryStockValueAcquiredCostMethod | 0.0 | 0.0 | 0.0 | 11.6 | 0.0 | 0.0 | 0.0 | 128.0 | 0.0 | 2.1 | 4.0 | 7.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-03-31 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 29 | 17 | 200 | 11 | 23 | 19 | 173 |
| Percentage of TreasuryStockValueAcquiredCostMethod | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-03-31 | 2019-03-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-06-30 |
| Value | 29 | 17 | 200 | 11 | 23 | 19 | 173 | 172 | 182 | 48 | 45 |
| Percentage of TreasuryStockValueAcquiredCostMethod | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 |
| Value | -2470000.0 |
| Percentage of UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 |
| Value | 3200000.0 | 2700000.0 | -7600000.0 |
| Percentage of UnrecognizedTaxBenefitsPeriodIncreaseDecrease | 100.0 | 100.0 | 100.0 |
| Period End | 2021-08-03 | 2017-02-21 | 2016-11-01 | 2016-08-03 | 2016-05-02 | 2016-02-23 | 2015-11-05 | 2015-08-04 | 2015-05-01 | 2015-02-23 | 2014-11-03 | 2014-07-28 | 2014-04-30 | 2014-02-21 | 2012-07-31 | 2012-04-30 | 2012-02-20 | 2011-10-28 | 2011-07-29 |
| Value | 139 | 145 | 144 | 144 | 144 | 152 | 152 | 196 | 204 | 204 | 212 | 212 | 213 | 213 | 209 | 209 | 207 | 206 | 207 |
| Percentage of EntityCommonStockSharesOutstanding | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2020-03-31 | 2015-03-31 | 2014-03-31 | 2013-03-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 15 | 10.0 | 10.0 | 10.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
| Percentage of AutoLiabilityInsuranceClaimsDeductible | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-09-30 |
| Value | 65 |
| Percentage of BusinessCombinationContingentConsiderationLiabilityAmountAfterMeasurementPeriod | 100.0 |
| Period End | 2020-09-30 |
| Value | 10 |
| Percentage of BusinessCombinationContingentConsiderationLiabilityOutstandingMeasurementPeriod | 100.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 8.919 | 7.971 | 0.0 | 0.0 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedContractAssetsCurrent | 100.0 | 100.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 10 | 2.873 | 0.0 | 0.0 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedContractLiabilities | 100.0 | 100.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2014-12-31 |
| Value | 228 | 217 | 106 | 71 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetTangibleAssets | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 88 | 54 |
| Percentage of ContractReceivableRetainageNoncurrent | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 109 | 91 |
| Percentage of ContractWithCustomerContractValue | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2019-12-31 | 2019-09-30 |
| Value | 407 | 404 | 400 | 400 |
| Percentage of ContractWithCustomerContractValue | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 115 | 114 |
| Percentage of ContractWithCustomerContractValue | 105.7 | 124.2 |
| Period End | 2020-09-30 |
| Value | 7800000.0 |
| Percentage of ContractWithCustomerEstimatedCostToComplete | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 53 | 33 | 40 | 15 |
| Percentage of ContractWithCustomerLiabilityDeferredRevenuesCurrent | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 42 | 41 | 53 | 36 | 28 | 22 | 33 | 40 | 16 |
| Percentage of ContractWithCustomerLiabilityDeferredRevenuesCurrent | 0.0 | 0.0 | 100.1 | 0.0 | 0.0 | 0.0 | 100.0 | 100.0 | 100.2 |
| Period End | 2020-09-30 |
| Value | 80.0 |
| Percentage of ContractWithCustomerPercentageOfCompletion | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 51.0 | 56.0 |
| Percentage of ContractWithCustomerPercentageOfCompletion | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2019-12-31 | 2019-09-30 |
| Value | 95.0 | 93.0 | 0.73 | 0.66 |
| Percentage of ContractWithCustomerPercentageOfCompletion | 0.0 | 116.2 | 0.0 | 0.0 |
| Period End | 2021-03-31 |
| Value | 98.0 |
| Percentage of ContractWithCustomerPercentageOfCompletion | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2019-12-31 |
| Value | 181 | 158 | 141 | 144 | 147 | 170 |
| Percentage of ContractWithCustomerRevenueRecognizedRelatedToUnapprovedChangeOrdersAndClaims | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 |
| Value | 50.0 |
| Percentage of CustomersOwnershipPercentageInJointVenture | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 9695000.0 | 6695000.0 |
| Percentage of DeferredOfferingCostsNoncurrent | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 |
| Value | 10 | 16 | 13 |
| Percentage of DeferredTaxAssetsDeferredTaxBenefitsOnUnrecognizedTaxPositions | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 76 | 74 |
| Percentage of DeferredTaxAssetsLeasingArrangements | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 30 | 11 | 44 | 36 | 16 |
| Percentage of DeferredTaxLiabilitiesCustomerHoldbacks | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2020-03-31 | 2015-03-31 | 2014-03-31 | 2013-03-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 5000000.0 | 1000000.0 | 1000000.0 | 1000000.0 | 1000000.0 | 1000000.0 | 1000000.0 | 1000000.0 | 1000000.0 | 1000000.0 | 1000000.0 | 1000000.0 | 1000000.0 | 1000000.0 |
| Percentage of EmployersLiabilityInsuranceClaimsDeductible | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 1100 | 1400 | 1400 | 1400 |
| Percentage of EstimatedCostsToCompleteBondedProjects | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 |
| Value | 75 |
| Percentage of ExpirationAmountOfStateAndForeignNetOperatingLossCarryforwardsThereafter | 100.0 |
| Period End | 2020-12-31 |
| Value | 7400000.0 |
| Percentage of ExpirationAmountOfStateAndForeignNetOperatingLossCarryforwardsYearFive | 100.0 |
| Period End | 2020-12-31 |
| Value | 1000000.0 |
| Percentage of ExpirationAmountOfStateAndForeignNetOperatingLossCarryforwardsYearFour | 100.0 |
| Period End | 2020-12-31 |
| Value | 500000.0 |
| Percentage of ExpirationAmountOfStateAndForeignNetOperatingLossCarryforwardsYearOne | 100.0 |
| Period End | 2020-12-31 |
| Value | 3200000.0 |
| Percentage of ExpirationAmountOfStateAndForeignNetOperatingLossCarryforwardsYearThree | 100.0 |
| Period End | 2020-12-31 |
| Value | 200000.0 |
| Percentage of ExpirationAmountOfStateAndForeignNetOperatingLossCarryforwardsYearTwo | 100.0 |
| Period End | 2021-03-31 | 2020-09-30 |
| Value | 104 | 138 |
| Percentage of FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2020-03-31 | 2015-03-31 | 2014-03-31 | 2013-03-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 15 | 10.0 | 10.0 | 10.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
| Percentage of GeneralLiabilityInsuranceClaimsDeductible | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 9.0 | 9.0 | 7.0 | 7.0 |
| Percentage of GoodwillMeasurementInput | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 13.5 | 0.15 | 0.14 | 0.145 |
| Percentage of GoodwillMeasurementInput | 150.0 | 1.7 | 2.0 | 2.1 |
| Period End | 2020-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 26.0 | 0.08 | 0.17 | 0.24 |
| Percentage of GoodwillMeasurementInput | 288.9 | 0.9 | 2.4 | 3.4 |
| Period End | 2020-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 6.0 | 6.5 | 5.5 | 5.5 |
| Percentage of GoodwillMeasurementInput | 66.7 | 72.2 | 78.6 | 78.6 |
| Period End | 2020-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 12.5 | 0.12 | 0.12 | 0.125 |
| Percentage of GoodwillMeasurementInput | 138.9 | 1.3 | 1.7 | 1.8 |
| Period End | 2020-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | -8.0 | -0.14 | -0.14 | -0.02 |
| Percentage of GoodwillMeasurementInput | -88.9 | -1.6 | -2.0 | -0.3 |
| Period End | 2021-06-30 | 2014-03-31 | 2013-03-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-09-30 | 2010-06-30 | 2010-03-31 |
| Value | 800000.0 | 375000.0 | 375000.0 | 350000.0 | 350000.0 | 350000.0 | 350000.0 | 350000.0 | 350000.0 | 350000.0 | 350000.0 | 350000.0 |
| Percentage of HealthCareDeductible | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 84 | 89 |
| Percentage of InvestmentsInUnconsolidatedAffiliates | 100.0 | 100.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 |
| Value | 45 | 45 | 23 | 21 | 21 | 11 |
| Percentage of LeasesOptionToPurchaseAssetFailedSaleLeaseback | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 5700000.0 | 1600000.0 | 3400000.0 | 3100000.0 |
| Percentage of LesseeOperatingLeaseLeaseNotYetCommencedLiability | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 |
| Value | 32 | 32 | 44 |
| Percentage of LesseeOperatingLeaseLiabilityToBePaidAfterYearFour | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 271 | 286 | 291 | 300 |
| Percentage of OperatingAndFinanceLeaseLiabilitiesPaymentsDue | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 |
| Value | 30 |
| Percentage of OperatingAndFinanceLeaseLiabilitiesPaymentsDueAfterYearFive | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 |
| Value | 32 | 32 | 44 |
| Percentage of OperatingAndFinanceLeaseLiabilitiesPaymentsDueAfterYearFour | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 |
| Value | 18 |
| Percentage of OperatingAndFinanceLeaseLiabilitiesPaymentsDueYearFive | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 22 | 21 | 29 | 27 |
| Percentage of OperatingAndFinanceLeaseLiabilitiesPaymentsDueYearFour | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 |
| Value | 77 | 74 | 91 |
| Percentage of OperatingAndFinanceLeaseLiabilitiesPaymentsDueYearOne | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 34 | 32 | 48 | 44 |
| Percentage of OperatingAndFinanceLeaseLiabilitiesPaymentsDueYearThree | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 55 | 52 | 68 | 65 |
| Percentage of OperatingAndFinanceLeaseLiabilitiesPaymentsDueYearTwo | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 |
| Value | 95 |
| Percentage of OperatingAndFinanceLeaseLiabilitiesPaymentsNextTwelveMonths | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 |
| Value | 48 | 72 | 26 |
| Percentage of OperatingAndFinanceLeaseLiabilitiesPaymentsRemainderOfFiscalYear | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 21 | 23 | 24 | 25 |
| Percentage of OperatingAndFinanceLeaseLiabilitiesUndiscountedExcessAmount | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 250 | 262 | 266 | 274 | 284 | 293 | 289 | 292 | 287 | 287 |
| Percentage of OperatingAndFinanceLeaseLiability | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 |
| Value | 254 | 259 | 268 | 277 | 288 | 285 |
| Percentage of OperatingAndFinanceLeaseRightOfUseAsset | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 |
| Value | 129 | 129 | 39 |
| Percentage of OtherInvestmentsCostMethodNoncurrent | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 |
| Value | 90 |
| Percentage of OtherInvestmentsCostMethodNoncurrent | 69.6 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 11 | 18 |
| Percentage of OtherNonCurrentAssets | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 |
| Value | 141 | 141 | 170 | 150 | 131 | 122 | 121 | 118 | 110 | 90 | 144 |
| Percentage of RevenueRecognizedRelatedToUnapprovedChangeOrdersAndClaims | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 |
| Value | 9.221 | 71 | 73 | 74 |
| Percentage of ShortTermDebtAndLongTermDebtCurrentMaturities | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 10 | 5.693 | 8.224 | 12 | 10 |
| Percentage of UnrecognizedTaxBenefitPortionThatIfRecognizedWouldReduceTaxExpenseAndEffectiveTaxRateUpperBound | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 879 | 842 | 798 | 798 | 786 | 632 | 529 | 452 | 487 | 412 | 373 | 343 | 222 |
| Percentage of AccountsPayableTradeCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-07-31 |
| Value | 30 |
| Percentage of AccountsReceivableGross | 100.0 |
| Period End | 2021-07-31 |
| Value | 1.5 |
| Percentage of AccountsReceivableGross | 5.0 |
| Period End | 2021-07-31 |
| Value | 7.9 |
| Percentage of AccountsReceivableNet | 100.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 |
| Value | 13 | 13 | 12 | 12 | 12 | 12 | 55 | 53 | 69 | 25 |
| Percentage of AccountsReceivableNetNoncurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 80 | 69 | 56 | 64 | 60 | 61 | 49 | 44 | 44 | 51 | 56 |
| Percentage of AccruedInsuranceCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2010-12-31 | 2009-12-31 |
| Value | 39 | 16 | 16 | 16 | 14 | 14 | 9.398 | 7.683 | 8.541 | 8.476 | 5.839 | 4.465 | 2.752 | 5.226 | 6.174 | 5.215 | 5.447 | 5.034 | 4.576 | 3.763 | 7.4 | 7.3 | 7.3 | 9.069 |
| Percentage of AllowanceForDoubtfulAccountsReceivable | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 39 | 16 | 16 | 16 | 14 | 14 | 9.4 | 7.683 | 8.541 | 8.476 | 5.839 | 6.662 | 4.8 | 5.1 | 4.465 | 5.1 | 5.3 | 5.008 | 2.752 | 2.757 | 2.719 | 2.727 | 5.226 | 5.281 | 6.032 | 6.611 | 6.174 | 6.21 | 6.246 | 5.186 | 5.215 | 5.256 | 5.295 | 5.426 | 5.447 | 5.594 | 5.034 | 4.576 | 3.763 | 6.317 | 6.086 | 6.089 | 6.105 | 8.119 |
| Percentage of AllowanceForDoubtfulAccountsReceivableCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2019-12-31 |
| Value | 13 | 13 | 12 | 12 | 12 |
| Percentage of AssetsNet | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 |
| Value | 75 | 90 | 77 | 0.0 | 0.0 | 21 |
| Percentage of BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount | 100.0 | 100.0 | 100.0 | 0.0 | 0.0 | 100.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 73 | 71 | 3.8 | 3.8 |
| Percentage of BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount | 97.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 |
| Value | 13 | 48 | 157 | 153 | 153 | 157 | 157 | 157 | 154 | 154 | 139 | 139 |
| Percentage of BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 |
| Value | 6.9 |
| Percentage of BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh | 49.6 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 2.3 | 2.25 | 2.25 | 2.25 |
| Percentage of BusinessCombinationContingentConsiderationLiability | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2017-12-31 |
| Value | 75 | 75 | 88 | 84 | 79 | 75 | 70 | 70 | 74 | 65 |
| Percentage of BusinessCombinationContingentConsiderationLiability | 3368.9 | 3368.9 | 3911.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2018-12-31 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2016-12-31 |
| Value | 10 | 75 | 75 | 88 | 84 | 79 | 70 | 79 | 65 | 70 | 19 |
| Percentage of BusinessCombinationContingentConsiderationLiability | 476.9 | 3371.1 | 3367.6 | 3911.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 |
| Value | 3.466 | 77 | 0.0 |
| Percentage of BusinessCombinationContingentConsiderationLiabilityCurrent | 100.0 | 100.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2018-12-31 |
| Value | 3.466 | 68 | 68 | 80 | 77 | 70 | 0.0 |
| Percentage of BusinessCombinationContingentConsiderationLiabilityCurrent | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 |
| Period End | 2020-09-30 |
| Value | 30.0 |
| Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput | 100.0 |
| Period End | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 |
| Value | 3.9 | 0.039 | 0.039 | 0.039 | 0.039 | 0.039 | 0.039 | 0.038 | 0.036 |
| Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput | 13.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 |
| Value | 0.1 | 0.002 | 0.016 | 0.016 | 0.021 | 0.021 | 0.021 | 0.021 | 0.021 |
| Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 2.4 | 0.021 | 0.023 |
| Percentage of BusinessCombinationContingentConsiderationLiabilityMeasurementInput | 8.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2018-12-31 |
| Value | 7.503 | 7.383 | 7.304 | 7.06 | 6.542 | 8.438 | 70 |
| Percentage of BusinessCombinationContingentConsiderationLiabilityNoncurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 51 | 10 | 1.691 | 1.691 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 |
| Value | 5.74 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 74 | 64 | 4.888 | 4.888 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 |
| Value | 1.111 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 27 | 25 | 1.174 | 1.174 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 |
| Value | 4.841 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 3.185 | 0.483 | 0.483 | 0.483 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 |
| Value | 1.975 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 96 | 77 | 4.561 | 4.561 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 9.746 | 0.393 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 324 | 194 | 15 | 15 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 11 | 1.72 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 14000.0 | 11000.0 | 0 | 0 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets | 100.0 | 100.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 133 | 63 | 6.233 | 6.233 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 1.552 | 1.327 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 411 | 272 | 25 | 25 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 23 | 3.5 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2010-12-31 |
| Value | 140 | 125 | 98 | 166 | 459 | 179 | 37 | 37 | 37 | 37 | 37 | 55 | 55 | 7.1 | 7.1 | 8.3 | 8.4 | 8.1 | 8.8 | 7.8 | 5.7 | 7.4 | 1.4 | 2.6 | 4.7 | 9.3 | 107 | 17 | 17 | 66 | 247 | 130 | 186 | 189 | 92 | 16 | 71 | 56 | 165 | 96 | 318 | 460 |
| Percentage of CashEquivalentsAtCarryingValue | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2017-12-31 |
| Value | 669 | 518 | 453 | 478 | 489 | 569 | 601 | 652 | 683 | 573 | 576 | 497 |
| Percentage of ContractWithCustomerAssetNetCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2019-12-31 |
| Value | 283 | 275 | 306 | 340 | 316 | 299 |
| Percentage of ContractWithCustomerReceivableAfterAllowanceForCreditLossCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2019-12-31 |
| Value | 119 | 112 | 88 | 60 | 50 | 54 |
| Percentage of ContractWithCustomerReceivableAfterAllowanceForCreditLossNoncurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-11-30 |
| Value | 190 |
| Percentage of ContractsReceivableClaimsAndUncertainAmounts | 100.0 |
| Period End | 2021-06-30 |
| Value | 1000 |
| Percentage of DebtInstrumentFaceAmount | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 12 | 12 | 12 | 13 |
| Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2019-12-31 |
| Value | 13 | 13 | 11 | 10.0 | 6.3 |
| Percentage of DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 11 | 6.268 | 9.541 | 13 | 12 |
| Percentage of DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible | 99.7 | 99.5 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 |
| Value | 68 | 63 | 58 | 51 | 47 | 33 | 30 | 19 | 11 | 2.3 |
| Percentage of DeferredCompensationLiabilityClassifiedNoncurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 |
| Value | 7600000.0 | 6200000.0 | 8700000.0 | 4500000.0 | 2400000.0 | 2400000.0 | 4300000.0 | 2600000.0 | 1700000.0 | 2800000.0 | 3400000.0 | 2500000.0 | 1400000.0 | 3700000.0 | 4600000.0 | 3800000.0 | 2900000.0 | 5400000.0 | 5100000.0 | 3100000.0 | 2200000.0 | 3200000.0 | 2700000.0 | 2400000.0 | 2900000.0 | 3300000.0 | 2900000.0 | 2400000.0 | 1500000.0 | 700000.0 | 2100000.0 | 1700000.0 | 1300000.0 | 900000.0 | 800000.0 |
| Percentage of DeferredCompensationShareBasedArrangementsLiabilityCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 0.6 | 10 | 8.6 | 7.4 | 6.0 | 4.8 | 3.5 | 2.4 | 1.3 | 0.4 | 2.1 |
| Percentage of DeferredFinanceCostsOwnshareLendingArrangementIssuanceCostsAccumulatedAmortization | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 10 | 17 | 14 | 12 | 11 | 11 | 7.6 | 7.6 | 4.4 | 4.4 | 2.9 |
| Percentage of DeferredFinanceCostsOwnshareLendingArrangementIssuanceCostsGross | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 17 | 12 | 16 | 26 | 10.0 |
| Percentage of DeferredIncomeTaxAssetsNet | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 |
| Value | 433 | 379 | 310 | 288 | 372 | 356 | 444 | 370 | 355 |
| Percentage of DeferredIncomeTaxLiabilities | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 328 | 281 | 176 | 155 | 204 | 190 | 190 | 186 | 140 | 138 | 121 |
| Percentage of DeferredTaxAssetsGross | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 82 | 78 | 52 | 62 | 37 | 27 | 21 | 20 | 17 | 15 | 12 |
| Percentage of DeferredTaxAssetsOperatingLossCarryforwards | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 |
| Value | 88 | 83 | 57 | 67 | 40 | 29 | 25 |
| Percentage of DeferredTaxAssetsOperatingLossCarryforwards | 106.4 | 106.8 | 109.0 | 107.9 | 107.6 | 109.3 | 117.6 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 9.617 | 3.933 | 15 | 4.747 | 7.546 | 10 | 10 | 26 | 20 | 13 | 22 |
| Percentage of DeferredTaxAssetsOther | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 42 | 46 | 43 | 48 | 1.613 |
| Percentage of DeferredTaxAssetsTaxCreditCarryforwards | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 |
| Value | 36 | 26 | 20 | 17 | 58 | 52 | 53 | 57 |
| Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 70 | 36 | 28 | 21 | 21 | 25 | 22 | 64 | 33 | 40 | 20 |
| Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 85 | 72 | 60 | 49 | 83 | 69 | 72 | 58 | 48 | 43 | 30 |
| Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 4.438 | 11 | 21 | 26 | 33 | 36 | 53 | 42 | 46 | 54 | 55 |
| Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 77 | 73 |
| Percentage of DeferredTaxLiabilitiesLeasingArrangements | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 236 | 208 | 178 | 161 | 214 | 189 | 255 | 218 | 205 | 204 | 180 |
| Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 |
| Value | 5.0 | 6.3 | 14 |
| Percentage of DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 |
| Value | 11 | 7.9 | 14 |
| Percentage of DueFromRelatedParties | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 4300000.0 | 3100000.0 |
| Percentage of DueToRelatedPartiesCurrentAndNoncurrent | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 |
| Value | 400 | 353 | 378 | 316 | 279 | 225 | 194 | 159 | 166 | 163 |
| Percentage of EmployeeRelatedLiabilitiesCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 116 | 129 | 80 | 93 |
| Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 |
| Value | 60 | 51 | 44 |
| Percentage of EquityMethodInvestments | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 21 | 21 | 23 | 21 |
| Percentage of EquityMethodInvestments | 47.7 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 |
| Value | 25 | 16 | 10 | 5.3 | 0.6 |
| Percentage of EquityMethodInvestments | 41.4 | 31.7 | 24.3 | 0.0 | 0.0 |
| Period End | 2020-12-31 |
| Value | 12 |
| Percentage of EquitySecuritiesFvNiCost | 100.0 |
| Period End | 2020-09-30 |
| Value | 11 |
| Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueAmount | 100.0 |
| Period End | 2021-03-31 |
| Value | 9300000.0 |
| Percentage of EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentCumulativeAmount | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 |
| Value | 2412000.0 | 2615000.0 | 2228000.0 | 1428000.0 | 1400000.0 | 1493000.0 | 957000.0 | 1489000.0 | 2174000.0 | 1746000.0 |
| Percentage of FinanceLeaseLiability | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 |
| Value | 988000.0 | 846000.0 | 517000.0 | 489000.0 | 505000.0 | 440000.0 |
| Percentage of FinanceLeaseLiabilityCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 |
| Value | 1627000.0 | 1382000.0 | 911000.0 | 911000.0 | 988000.0 | 517000.0 |
| Percentage of FinanceLeaseLiabilityNoncurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 2533000.0 | 2765000.0 | 2367000.0 | 1530000.0 |
| Percentage of FinanceLeaseLiabilityPaymentsDue | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 842000.0 | 847000.0 | 920000.0 | 564000.0 |
| Percentage of FinanceLeaseLiabilityPaymentsDueNextTwelveMonths | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 102000.0 | 62000.0 | 264000.0 | 149000.0 |
| Percentage of FinanceLeaseLiabilityPaymentsDueYearFour | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 386000.0 | 394000.0 | 493000.0 | 280000.0 |
| Percentage of FinanceLeaseLiabilityPaymentsDueYearThree | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 618000.0 | 626000.0 | 690000.0 | 390000.0 |
| Percentage of FinanceLeaseLiabilityPaymentsDueYearTwo | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 |
| Value | 585000.0 | 836000.0 | 147000.0 |
| Percentage of FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 121000.0 | 150000.0 | 139000.0 | 102000.0 |
| Percentage of FinanceLeaseLiabilityUndiscountedExcessAmount | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 |
| Value | 2715000.0 | 2370000.0 | 1547000.0 | 1593000.0 | 1295000.0 | 1043000.0 |
| Percentage of FinanceLeaseRightOfUseAsset | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 52 | 14 |
| Percentage of FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 3.9 | 4.1 | 4.1 | 4.2 |
| Percentage of FinanceLeaseWeightedAverageDiscountRatePercent | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 | 2011-03-31 | 2010-12-31 | 2009-12-31 |
| Value | 562 | 539 | 517 | 490 | 469 | 446 | 437 | 414 | 400 | 386 | 372 | 364 | 352 | 343 | 335 | 324 | 313 | 305 | 297 | 291 | 283 | 275 | 264 | 244 | 239 | 261 | 255 | 248 | 240 | 230 | 223 | 214 | 206 | 202 | 198 | 194 | 183 | 174 | 164 | 155 | 148 | 141 | 134 | 96 |
| Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 |
| Value | 3.429 | 3.113 | 2.805 | 2.51 | 2.214 | 2.696 | 1.623 | 1.348 | 1.109 | 0.872 | 0.624 | 0.399 | 0.174 | 0.0 |
| Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization | 0.6 | 0.6 | 0.6 | 0.5 | 0.5 | 0.6 | 0.4 | 0.3 | 0.3 | 0.2 | 0.2 | 0.1 | 0.1 | 0.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 295 | 277 | 257 | 240 | 223 | 213 | 197 | 187 | 172 | 165 | 158 | 150 | 143 | 137 | 129 | 121 | 115 | 110 | 106 | 101 | 96 | 90 | 75 | 71 | 77 | 74 | 59 | 47 | 38 | 27 |
| Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization | 54.8 | 53.6 | 52.5 | 51.3 | 50.1 | 48.9 | 47.7 | 46.8 | 44.6 | 44.5 | 43.6 | 42.7 | 41.9 | 40.9 | 39.7 | 38.7 | 38.0 | 37.2 | 36.6 | 35.8 | 35.1 | 34.3 | 30.7 | 30.0 | 29.9 | 29.0 | 26.6 | 24.1 | 23.2 | 20.7 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 19 | 24 | 19 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 15 | 15 | 14 | 14 | 13 | 13 | 12 | 12 | 11 | 9.616 | 7.517 | 5.538 | 4.257 |
| Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization | 4.1 | 4.2 | 4.4 | 4.5 | 4.7 | 4.7 | 4.9 | 5.0 | 6.4 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.2 | 5.4 | 5.3 | 4.7 | 4.6 | 4.3 | 3.8 | 3.4 | 3.2 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 38 | 36 | 35 | 34 | 33 | 32 | 31 | 30 | 29 | 30 | 29 | 28 | 28 | 27 | 26 | 26 | 25 | 25 | 25 | 24 | 24 | 23 | 22 | 22 | 25 | 25 | 22 | 20 | 17 | 13 |
| Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization | 7.1 | 7.1 | 7.3 | 7.3 | 7.4 | 7.5 | 7.7 | 7.7 | 7.7 | 8.1 | 8.2 | 8.2 | 8.2 | 8.2 | 8.3 | 8.4 | 8.5 | 8.6 | 8.7 | 8.8 | 8.8 | 8.9 | 9.2 | 9.3 | 9.7 | 9.8 | 10.2 | 10.5 | 10.7 | 9.8 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 146 | 145 | 142 | 141 | 139 | 141 | 137 | 136 | 135 | 134 | 135 | 134 | 135 | 135 | 135 | 134 | 133 | 132 | 132 | 131 | 129 | 126 | 125 | 124 | 138 | 138 | 127 | 119 | 101 | 88 |
| Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization | 27.2 | 28.1 | 29.1 | 30.1 | 31.2 | 32.3 | 33.2 | 34.1 | 35.0 | 36.2 | 37.3 | 38.3 | 39.3 | 40.5 | 41.8 | 42.8 | 43.7 | 44.5 | 45.3 | 46.2 | 47.1 | 48.0 | 51.2 | 52.2 | 53.1 | 54.1 | 57.0 | 60.1 | 61.5 | 65.6 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 33 | 32 | 30 | 29 | 27 | 26 | 25 | 24 | 22 | 21 | 20 | 19 | 18 | 17 | 15 | 14 | 13 | 12 | 12 | 11 | 10 | 9.525 | 8.34 | 7.682 | 6.882 | 6.278 | 4.228 | 3.014 | 1.948 | 1.005 |
| Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization | 6.3 | 6.3 | 6.2 | 6.2 | 6.1 | 6.0 | 6.1 | 6.1 | 5.9 | 5.8 | 5.7 | 5.5 | 5.3 | 5.1 | 4.9 | 4.7 | 4.5 | 4.3 | 4.2 | 4.0 | 3.8 | 3.6 | 3.4 | 3.2 | 2.6 | 2.5 | 1.9 | 1.5 | 1.2 | 0.7 |
| Period End | 2020-12-31 |
| Value | 103 |
| Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive | 100.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 77 | 84 | 81 |
| Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 | 2020-09-30 |
| Value | 63 | 20 |
| Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear | 100.0 | 100.0 |
| Period End | 2020-12-31 |
| Value | 43 |
| Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive | 100.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 43 | 55 | 52 |
| Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 55 | 68 | 64 |
| Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 68 | 77 | 73 |
| Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 952 | 950 | 922 | 846 | 839 | 848 | 842 | 661 | 659 | 649 | 645 | 611 | 614 | 598 | 599 | 497 | 487 | 484 | 489 | 487 | 487 | 469 | 470 | 473 | 508 | 511 | 426 | 377 | 367 | 328 |
| Percentage of FiniteLivedIntangibleAssetsGross | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 |
| Value | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 9.448 | 9.448 | 9.448 | 9.0 | 9.0 | 9.0 | 0.0 |
| Percentage of FiniteLivedIntangibleAssetsGross | 1.3 | 1.3 | 1.3 | 1.4 | 1.4 | 1.4 | 1.3 | 1.4 | 1.4 | 1.5 | 1.4 | 1.5 | 1.5 | 0.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 618 | 616 | 593 | 531 | 527 | 532 | 531 | 369 | 358 | 359 | 354 | 326 | 328 | 327 | 328 | 254 | 246 | 244 | 247 | 247 | 247 | 236 | 236 | 239 | 255 | 257 | 199 | 170 | 171 | 153 |
| Percentage of FiniteLivedIntangibleAssetsGross | 64.9 | 64.9 | 64.4 | 62.8 | 62.8 | 62.8 | 63.1 | 55.8 | 54.3 | 55.4 | 54.9 | 53.4 | 53.4 | 54.7 | 54.7 | 51.2 | 50.5 | 50.4 | 50.6 | 50.7 | 50.8 | 50.4 | 50.3 | 50.5 | 50.3 | 50.3 | 46.7 | 45.2 | 46.8 | 46.6 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 32 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 20 | 16 | 16 |
| Percentage of FiniteLivedIntangibleAssetsGross | 2.4 | 2.4 | 2.4 | 2.7 | 2.7 | 2.7 | 2.7 | 3.4 | 4.9 | 3.5 | 3.5 | 3.7 | 3.7 | 3.8 | 3.8 | 4.5 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.8 | 4.8 | 4.8 | 4.4 | 4.3 | 5.0 | 5.5 | 4.5 | 4.9 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 47 | 47 | 47 | 43 | 43 | 43 | 43 | 40 | 40 | 40 | 40 | 37 | 37 | 37 | 37 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 31 | 31 | 28 | 27 | 27 | 23 |
| Percentage of FiniteLivedIntangibleAssetsGross | 5.0 | 5.0 | 5.1 | 5.2 | 5.2 | 5.1 | 5.1 | 6.2 | 6.2 | 6.3 | 6.2 | 6.2 | 6.1 | 6.3 | 6.3 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.1 | 6.1 | 6.0 | 6.2 | 6.1 | 6.8 | 7.3 | 7.5 | 7.3 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 150 | 149 | 148 | 143 | 142 | 144 | 140 | 137 | 136 | 135 | 137 | 135 | 136 | 136 | 136 | 134 | 134 | 133 | 134 | 133 | 133 | 130 | 131 | 132 | 149 | 151 | 136 | 126 | 121 | 108 |
| Percentage of FiniteLivedIntangibleAssetsGross | 15.8 | 15.8 | 16.1 | 17.0 | 16.9 | 17.1 | 16.7 | 20.7 | 20.7 | 20.9 | 21.3 | 22.2 | 22.2 | 22.8 | 22.8 | 27.1 | 27.5 | 27.6 | 27.5 | 27.4 | 27.4 | 27.8 | 27.9 | 28.0 | 29.4 | 29.6 | 32.1 | 33.4 | 33.2 | 33.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 |
| Value | 101 | 101 | 99 | 93 | 92 | 93 | 93 | 82 | 82 | 81 | 81 | 80 | 80 | 74 | 74 | 55 | 55 | 54 | 55 | 54 | 54 | 51 | 51 | 51 | 49 | 49 | 40 | 32 | 29 | 27 |
| Percentage of FiniteLivedIntangibleAssetsGross | 10.7 | 10.7 | 10.8 | 11.0 | 11.0 | 11.0 | 11.0 | 12.5 | 12.5 | 12.5 | 12.7 | 13.1 | 13.1 | 12.5 | 12.5 | 11.1 | 11.3 | 11.3 | 11.3 | 11.2 | 11.2 | 10.9 | 10.9 | 10.8 | 9.8 | 9.7 | 9.5 | 8.6 | 8.1 | 8.3 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2010-12-31 | 2009-12-31 |
| Value | 2221 | 2218 | 2194 | 2119 | 2101 | 2119 | 2098 | 2028 | 2023 | 1996 | 1912 | 1994 | 2000 | 1966 | 1977 | 1656 | 1648 | 1642 | 1652 | 1635 | 1635 | 1592 | 1537 | 1734 | 1728 | 1709 | 1664 | 1649 | 1624 | 1512 |
| Percentage of GoodwillGross | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 |
| Value | 1452 | 1449 | 1434 | 1363 | 1352 | 1365 | 1349 | 1342 | 1338 | 1313 | 1272 | 1253 | 1226 |
| Percentage of GoodwillGross | 65.4 | 65.3 | 65.4 | 64.3 | 64.4 | 64.4 | 64.3 | 66.2 | 66.1 | 65.8 | 64.7 | 76.3 | 77.0 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 |
| Value | 769 | 768 | 759 | 756 | 748 | 753 | 748 | 686 | 685 | 683 | 693 | 388 | 366 |
| Percentage of GoodwillGross | 34.6 | 34.7 | 34.6 | 35.7 | 35.6 | 35.6 | 35.7 | 33.8 | 33.9 | 34.2 | 35.3 | 23.7 | 23.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 768 | 753 | 683 | 693 |
| Percentage of GoodwillGross | 34.7 | 35.6 | 34.2 | 35.3 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | <