| 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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:CommonStockValue us-gaap:ConsolidatedEntities,us-gaap:StatementClassOfStock srt:ParentCompany,us-gaap:CommonClassC | NA | NA | 1.8 | NA | NA | NA | 1.3 | NA | NA | NA | 1.3 | NA | NA | NA | 1.2 | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:CommonStockValue us-gaap:StatementClassOfStock us-gaap:CommonClassC | ████▂▂▂▂▂▂▂▁▁▁▁ | 1.8 | 1.8 | 1.8 | 1.8 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.2 | 1.2 | 1.2 | 1.2 | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding | ▁█ | 234.80002 | 252.970163 | NA | 185.380797 | 185.424779 | 184.950252 | 181.952454 | 181.94375 | NA | NA | NA | 171.378608 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:WeightedAverageNumberOfSharesOutstandingBasic | ███▂▂▂▁▁▁▁ | 233.960795 | 232.410514 | 232.014448 | 185.380797 | 185.424779 | 184.950252 | 181.887158 | 181.588912 | 181.504385 | 181.03679 | NA | 171.378608 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities lila:OptionsStockAppreciationRightsSARsandRestrictedStockUnitsRSUs | NA | 17.6 | NA | NA | NA | 22.1 | NA | 15.8 | 15.8 | 13.1 | NA | NA | 14.3 | 10.5 | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:PerformanceShares | NA | 2.0 | NA | NA | NA | 2.0 | NA | 0.5 | 1.3 | 1.6 | NA | NA | 1.2 | 1.2 | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:EarningsPerShareBasic | ▁█ | 0.02 | 0.38 | NA | NA | -2.12 | -0.98 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:EarningsPerShareDiluted | ▁█ | 0.02 | 0.37 | NA | NA | -2.12 | -0.98 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:EarningsPerShareBasicAndDiluted | NA | NA | -0.12 | -0.46 | -2.15 | -0.99 | 0.23 | 0.19 | -0.64 | -0.23 | -1.3 | -0.15 | -0.25 | -0.26 | -2.34 | -2.0 | -0.16 | -0.03 | -0.62 | -0.93 | -1.12 | -0.9 |
| 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 |
|---|
| 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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TTM Greenblatt ROC _ _ | ██▇▇▃▇█▅█▇▁█▇▇▃▃███ | 160.2 | 178.2 | 103.3 | 86.6 | -206.0 | 107.8 | 166.7 | -69.7 | 143.5 | 113.3 | -384.9 | 138.8 | 124.2 | 98.3 | -243.6 | -201.5 | 158.7 | 138.0 | 141.2 | 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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:AllocatedShareBasedCompensationExpense | █▆▆▇▆▆▃▄▄▄▃▃▂▂▁▁▁▂ | 32.8 | 23.0 | 22.2 | 28.0 | 23.5 | 23.8 | 12.3 | 15.1 | 15.4 | 14.7 | 13.0 | 11.6 | 8.7 | 6.5 | 2.3 | 3.3 | 3.0 | 5.6 | NA | NA | NA | NA |
| us-gaap:ComprehensiveIncomeNetOfTax | ▇█▆▅▁▄█▇▅▆▆▆▆▆▂▂▆▇ | -7.9 | 63.4 | -71.3 | -111.8 | -428.0 | -186.9 | 78.8 | 31.2 | -156.6 | -32.0 | -94.9 | -92.1 | -44.2 | -73.3 | -362.7 | -379.4 | -65.1 | -18.4 | NA | NA | NA | NA |
| us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest | ████▅██▅██▁██▇▇▇██ | -3.8 | 1.4 | -5.2 | -5.5 | -107.7 | -4.1 | -2.4 | -105.3 | 4.3 | 0.8 | -301.1 | 6.2 | 13.3 | -10.3 | -38.6 | -12.4 | 15.4 | 15.9 | NA | NA | NA | NA |
| us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest | ▇█▆▆▁▅█▆▅▇▃▆▇▆▃▃▇▇ | -11.7 | 64.8 | -76.5 | -117.3 | -535.7 | -191.0 | 76.4 | -74.1 | -152.3 | -31.2 | -396.0 | -85.9 | -30.9 | -83.6 | -401.3 | -391.8 | -49.7 | -2.5 | NA | NA | NA | NA |
| us-gaap:CostOfGoodsAndServicesSold | ██▇▂▁▃▄▄▄▄▅▄▄▄ | 275.7 | 280.2 | 265.8 | 189.7 | 179.7 | 210.8 | 216.5 | 218.5 | 226.4 | 227.8 | 237.3 | 218.3 | 218.4 | 215.8 | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:CostsAndExpenses | ▄▄▄▁▅▂▂▄▂▂█▁▁▂▅▅▁▁ | 1007.8 | 981.7 | 993.9 | 800.9 | 1054.9 | 823.2 | 807.9 | 1036.5 | 839.4 | 829.4 | 1333.4 | 786.4 | 797.9 | 811.6 | 1083.0 | 1113.8 | 765.5 | 776.1 | NA | NA | NA | NA |
| us-gaap:GainsLossesOnExtinguishmentOfDebt | █▄█▁█▇▇▇▆█▅██▆█▄▃█ | 0.0 | -23.3 | 0.0 | -41.7 | 0.0 | -3.4 | -6.8 | -3.5 | -9.5 | 0.0 | -19.1 | 0.0 | 0.0 | -13.0 | 1.8 | -25.8 | -27.8 | 0.0 | NA | NA | NA | NA |
| us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType lila:A2028VTRFinanceSeniorNotes,us-gaap:SeniorNotes | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType lila:A2028VTRSeniorSecuredNotes,us-gaap:SeniorNotes | NA | -2.1 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType lila:CWTermLoanB4Facility,us-gaap:LineOfCredit | NA | NA | 0.0 | 0.0 | 0.0 | -3.0 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType lila:LPRFirstLienTermLoan,us-gaap:LineOfCredit | NA | -14.3 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType lila:VTRTLB1Facility,us-gaap:MediumTermNotes | NA | -5.6 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:GainsLossesOnExtinguishmentOfDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType lila:VTRTLB2Facility,us-gaap:MediumTermNotes | NA | -1.3 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest | ▇█▆▅▂▅█▄▆▆▁▇▇▆▃▃▇▇ | 39.0 | 117.4 | -30.0 | -132.8 | -496.4 | -179.0 | 90.0 | -252.1 | -81.7 | -36.8 | -570.4 | 9.1 | 14.1 | -37.5 | -331.8 | -361.5 | 8.4 | 33.7 | NA | NA | NA | NA |
| us-gaap:IncomeTaxExpenseBenefit | ▆▆▅▄▅▆▇▁▆▅▅▆▆▆█▅▆▆ | 38.0 | 28.0 | 4.1 | -42.8 | 3.8 | 5.6 | 50.3 | -182.4 | 29.5 | 4.4 | -35.2 | 27.9 | 41.6 | 16.8 | 109.1 | -5.8 | 21.1 | 23.1 | NA | NA | NA | NA |
| us-gaap:IncomeTaxesPaidNet | ▄▃▆▅▁▂▅▆▆▄▅▅█▅▄▅▄▅ | 25.4 | 14.7 | 39.3 | 28.3 | 1.5 | 12.5 | 29.9 | 40.6 | 38.1 | 21.5 | 33.2 | 28.6 | 54.7 | 29.1 | 24.5 | 31.0 | 20.8 | 34.6 | NA | NA | NA | NA |
| us-gaap:InterestExpense | ▇▆▅▆▇██▅▅▄▅▃▃▂▁▂▂▁ | 133.7 | 126.4 | 124.9 | 129.9 | 135.3 | 143.3 | 139.8 | 123.9 | 119.8 | 115.7 | 121.6 | 110.2 | 109.4 | 102.5 | 92.0 | 99.3 | 96.2 | 94.3 | NA | NA | NA | NA |
| us-gaap:InterestPaidNet | ▄▇▄▇▅▇▃▇▃█▃▇▁█ | 88.6 | 138.1 | 99.7 | 137.4 | 101.9 | 145.3 | 73.6 | 138.7 | 77.4 | 155.2 | 70.5 | 145.2 | 46.2 | 156.3 | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:NetIncomeLoss | ▇█▆▆▁▄▇▇▅▆▃▆▆▆▁▂▆▇▅▄▅▆ | 4.4 | 87.8 | -28.9 | -84.6 | -393.0 | -180.7 | 42.3 | 35.3 | -116.0 | -41.7 | -233.0 | -25.5 | -42.2 | -44.5 | -400.8 | -343.3 | -28.2 | -5.8 | -107.2 | -162.3 | -123.4 | -39.4 |
| us-gaap:NetIncomeLossAttributableToNoncontrollingInterest | ████▅██▅██▁██▇▇▇██ | -3.4 | 1.6 | -5.2 | -5.4 | -107.2 | -3.9 | -2.6 | -105.0 | 4.8 | 0.5 | -302.2 | 6.7 | 14.7 | -9.8 | -40.1 | -12.4 | 15.5 | 16.4 | NA | NA | NA | NA |
| us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic | ▄ | 4.4 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:NetIncomeLossAvailableToCommonStockholdersDiluted | ▁█ | 4.4 | 93.7 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:NonoperatingIncomeExpense | ▆█▆▃▁▁█▄▃▅▄▆▆▆▇▅▅▇ | -121.2 | -60.8 | -133.3 | -219.4 | -290.4 | -286.8 | -76.7 | -182.4 | -225.2 | -150.1 | -185.5 | -129.7 | -110.1 | -135.8 | -98.9 | -155.8 | -147.0 | -101.1 | NA | NA | NA | NA |
| us-gaap:OperatingIncomeLoss | ██▇▇▃▇█▅█▇▁█▇▇▃▃████▆▇ | 160.2 | 178.2 | 103.3 | 86.6 | -206.0 | 107.8 | 166.7 | -69.7 | 143.5 | 113.3 | -384.9 | 138.8 | 124.2 | 98.3 | -243.6 | -201.5 | 158.7 | 138.0 | 141.2 | 138.8 | -20.9 | 60.0 |
| us-gaap:OtherComprehensiveIncomeLossNetOfTax | ▃▂▂▂▂▃▅▃▂▄█▁▃▂▅▂▂▃ | -12.7 | -24.6 | -42.4 | -27.3 | -35.5 | -6.4 | 36.7 | -4.4 | -41.1 | 10.0 | 139.2 | -67.1 | -3.4 | -29.3 | 39.6 | -36.1 | -37.0 | -13.1 | NA | NA | NA | NA |
| us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedOtherComprehensiveIncome | ▃▂▂▂▂▃▅▃▂▄█▁▃▂ | -12.3 | -24.4 | -42.4 | -27.2 | -35.0 | -6.2 | 36.5 | -4.1 | -40.6 | 9.7 | 138.1 | -66.6 | -2.0 | -28.8 | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:NoncontrollingInterest | ▄▄▅▅▄▄▅▄▄▆█▄▁▄ | -0.4 | -0.2 | 0.0 | -0.1 | -0.5 | -0.2 | 0.2 | -0.3 | -0.5 | 0.3 | 1.1 | -0.5 | -1.4 | -0.5 | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:Parent | ▃▂▂▂▂▃▅▃▂▄█▁▃▂ | -12.3 | -24.4 | -42.4 | -27.2 | -35.0 | -6.2 | 36.5 | -4.1 | -40.6 | 9.7 | 138.1 | -66.6 | -2.0 | -28.8 | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:OtherNonoperatingIncomeExpense | ▅▅▁▆▇█▇▇▆▆▆▁▇▇▃▇▇█ | -0.4 | -0.6 | -11.7 | 0.2 | 4.8 | 6.8 | 4.9 | 4.4 | 2.6 | 2.4 | 1.8 | -12.0 | 4.8 | 5.3 | -6.9 | 4.4 | 3.0 | 6.0 | NA | NA | NA | NA |
| us-gaap:ProfitLoss | ▇█▇▆▁▅▇▆▆▇▁▇▇▆▂▃▇▇ | 1.0 | 89.4 | -34.1 | -90.0 | -500.2 | -184.6 | 39.7 | -69.7 | -111.2 | -41.2 | -535.2 | -18.8 | -27.5 | -54.3 | -440.9 | -355.7 | -12.7 | 10.6 | NA | NA | NA | NA |
| us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax | ██▇▆▅▆▆▆▇▆▆▆▆▆▅▆▆▆▆▆▃▁ | 1168.0 | 1159.9 | 1097.2 | 887.5 | 848.9 | 931.0 | 974.6 | 966.8 | 982.9 | 942.7 | 948.5 | 925.2 | 922.1 | 909.9 | 850.1 | 908.1 | 920.9 | 910.9 | 922.9 | 894.1 | 602.9 | 303.9 |
| us-gaap:SellingAndMarketingExpense | █▇▅▁▁▃▃▂▃ | 53.7 | 52.4 | 47.8 | 38.8 | 39.4 | 42.1 | 42.1 | 41.1 | 43.3 | 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 |
|---|
| 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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:Assets | ██▇▅▅▇▆▁▃▂▁▃▃▂▂ | 15497.9 | 15549.1 | 15230.0 | 14597.9 | 14774.5 | 15198.5 | 14937.5 | 13542.3 | 13907.0 | 13643.7 | 13446.6 | 13951.4 | 14031.1 | 13699.0 | 13616.9 | NA | NA | NA | 14143.9 | NA | NA | NA |
| us-gaap:Liabilities | ██▇▆▇▇▆▃▃▂▂▂▂▁▁ | 11961.9 | 12012.8 | 11786.3 | 11070.2 | 11494.6 | 11389.1 | 10957.6 | 9610.6 | 9903.1 | 9525.4 | 9323.2 | 9466.1 | 9469.7 | 9102.1 | 8926.3 | NA | NA | NA | 8483.5 | NA | NA | NA |
| us-gaap:LiabilitiesAndStockholdersEquity | ██▇▅▅▇▆▁▃▂▁▃▃▂▂ | 15497.9 | 15549.1 | 15230.0 | 14597.9 | 14774.5 | 15198.5 | 14937.5 | 13542.3 | 13907.0 | 13643.7 | 13446.6 | 13951.4 | 14031.1 | 13699.0 | 13616.9 | NA | NA | NA | 14143.9 | NA | NA | NA |
| us-gaap:StockholdersEquity | ▄▃▃▃▁▅▆▅▅▆▆▆▇▇█ | 2810.7 | 2805.9 | 2714.7 | 2776.4 | 2521.5 | 2943.3 | 3109.8 | 3024.1 | 2979.2 | 3095.1 | 3112.6 | 3126.9 | 3209.6 | 3246.7 | 3329.6 | NA | NA | NA | 4179.6 | 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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:AssetsCurrent | █▇▄▇█▇▅▄▅▂▃▃▃▁▁ | 2520.9 | 2408.6 | 1951.9 | 2405.6 | 2541.3 | 2455.3 | 2055.2 | 1932.5 | 1979.2 | 1548.9 | 1644.8 | 1701.4 | 1632.8 | 1402.3 | 1374.8 | NA | NA | NA | 1509.2 | NA | NA | NA |
| us-gaap:CashAndCashEquivalentsAtCarryingValue | ▆▅▃▇█▇▅▄▄▁▂▁▂▁▁ | 1311.1 | 1305.6 | 894.2 | 1611.9 | 1752.4 | 1593.3 | 1183.8 | 1004.1 | 957.4 | 568.8 | 631.0 | 525.1 | 738.0 | 510.6 | 529.9 | NA | NA | NA | 552.6 | NA | NA | NA |
| us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents | ▃▃▂██▇▆▂▂▁▁▂▂▁▁▁▁▁▁ | 1319.1 | 1325.4 | 912.5 | 2982.9 | 3123.7 | 2871.7 | 2457.0 | 1020.5 | 974.9 | 586.1 | 642.0 | 786.9 | 749.7 | 531.9 | 568.2 | 569.3 | 638.8 | 562.8 | 580.8 | NA | NA | NA |
| us-gaap:AccountsReceivableNetCurrent | ▄▃▃▁▁▃▄▅█▇▅▃▃▄▃ | 591.6 | 563.4 | 560.7 | 505.9 | 516.2 | 572.0 | 585.2 | 629.0 | 699.8 | 660.7 | 607.3 | 571.5 | 562.4 | 581.2 | 556.5 | NA | NA | NA | 531.6 | NA | NA | NA |
| us-gaap:OtherAssetsCurrent | █▇▆▁▁▁▁▁▂▂▄▂▂▂▁ | 527.2 | 471.2 | 434.4 | 225.6 | 219.2 | 226.3 | 227.3 | 232.1 | 257.0 | 260.1 | 333.3 | 261.7 | 273.1 | 245.7 | 222.9 | NA | NA | NA | 252.2 | 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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:NoncurrentAssets | NA | NA | 4911.4 | NA | NA | NA | 4301.1 | NA | NA | NA | 11098.4 | NA | NA | NA | 11724.4 | NA | NA | NA | 12056.1 | NA | NA | NA | |
| us-gaap:NoncurrentAssets us-gaap:ConsolidationItems,us-gaap:StatementGeographical srt:ReportableGeographicalComponents,country:PA | NA | NA | 354.8 | NA | NA | NA | 391.6 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:NoncurrentAssets us-gaap:ConsolidationItems,us-gaap:StatementGeographical srt:ReportableGeographicalComponents,country:PR | NA | NA | 1217.9 | NA | NA | NA | 524.2 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:NoncurrentAssets us-gaap:ConsolidationItems,us-gaap:StatementGeographical srt:ReportableGeographicalComponents,lila:OtherCaribbeanOperations | NA | NA | 530.5 | NA | NA | NA | 542.6 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:BB | NA | NA | 185.2 | NA | NA | NA | 193.7 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:BS | NA | NA | 342.4 | NA | NA | NA | 359.4 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:CL | NA | NA | 755.0 | NA | NA | NA | 710.8 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:CR | NA | NA | 67.4 | NA | NA | NA | 67.6 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:CW | NA | NA | 161.5 | NA | NA | NA | 169.6 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:JM | NA | NA | 360.5 | NA | NA | NA | 374.6 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:TT | NA | NA | 214.5 | NA | NA | NA | 216.0 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:NoncurrentAssets us-gaap:StatementGeographical lila:NetworksandLatinAmerica | NA | NA | 721.7 | NA | NA | NA | 751.0 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:PropertyPlantAndEquipmentGross | █▇▇▄▄▃▄▃▄▃▂▂▂▂▁ | 9292.2 | 9092.4 | 8739.7 | 7857.6 | 7632.9 | 7424.5 | 7594.3 | 7473.9 | 7597.5 | 7470.3 | 7119.8 | 6984.0 | 6858.2 | 6824.6 | 6567.5 | NA | NA | NA | 5682.2 | NA | NA | NA |
| us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment | █▇▆▆▅▄▄▄▄▃▃▂▂▂▁ | 4419.1 | 4201.1 | 3828.3 | 3707.8 | 3477.5 | 3261.0 | 3293.2 | 3191.9 | 3235.9 | 3089.2 | 2882.9 | 2801.4 | 2647.5 | 2588.4 | 2398.3 | NA | NA | NA | 1821.3 | NA | NA | NA |
| us-gaap:PropertyPlantAndEquipmentNet | ███▁▁▁▂▂▃▃▂▁▂▂▁ | 4873.1 | 4891.3 | 4911.4 | 4149.8 | 4155.4 | 4163.5 | 4301.1 | 4282.0 | 4361.6 | 4381.1 | 4236.9 | 4182.6 | 4210.7 | 4236.2 | 4169.2 | NA | NA | NA | 3860.9 | NA | NA | NA |
| us-gaap:Goodwill | ▃▃▃▁▁▃▃▄▅▅▅▇███ | 4775.2 | 4814.1 | 4885.5 | 4503.7 | 4502.3 | 4808.3 | 4906.4 | 4973.0 | 5182.8 | 5225.4 | 5133.3 | 5544.9 | 5602.6 | 5663.6 | 5673.6 | NA | NA | NA | 6353.5 | NA | NA | NA |
| us-gaap:IndefiniteLivedIntangibleAssetsExcludingGoodwill | ███▁▁▁▁▁▁▁▁▁▁▁▁ | 1465.0 | 1465.4 | 1465.6 | 561.3 | 559.1 | 558.4 | 560.8 | 561.5 | 563.0 | 563.0 | 562.5 | 563.8 | 563.9 | 565.9 | 565.4 | NA | NA | NA | 607.2 | NA | NA | NA |
| us-gaap:FiniteLivedIntangibleAssetsNet | ▁▂▂▂▃▃▄▄▅▆▆▆▇▇█ | 755.3 | 805.0 | 858.9 | 825.5 | 876.9 | 920.4 | 969.2 | 986.9 | 1068.4 | 1120.6 | 1165.7 | 1145.8 | 1199.1 | 1251.6 | 1316.2 | NA | NA | NA | 1234.5 | NA | NA | NA |
| us-gaap:OperatingLeaseRightOfUseAsset | ▇▇█▁ | 299.6 | 305.5 | 328.6 | 143.4 | NA | NA | 150.9 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:OtherAssetsNoncurrent | ▇██▄▄▆▅▄▄▄▃▄▄▂▁ | 1108.4 | 1164.7 | 1139.4 | 782.1 | 769.7 | 1016.2 | 872.6 | 806.4 | 752.0 | 804.7 | 703.4 | 812.9 | 822.0 | 579.4 | 517.7 | NA | NA | NA | 578.6 | 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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:AccountsPayableCurrent | ██▇▁▁▁▇▃▇▅▃▂▁▂▂ | 366.1 | 364.9 | 351.7 | 269.6 | 270.2 | 272.4 | 346.6 | 295.3 | 352.1 | 321.8 | 297.4 | 276.7 | 275.0 | 276.7 | 286.8 | NA | NA | NA | 219.4 | NA | NA | NA |
| us-gaap:ContractWithCustomerLiabilityCurrent | ▅▆█▁▁▁▅▅▆▆▅▅▄ | 166.8 | 168.7 | 184.9 | 138.0 | 136.2 | 137.8 | 160.9 | 163.4 | 169.1 | 168.6 | 161.7 | 165.3 | 159.9 | NA | 143.4 | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LiabilitiesCurrent | ▅▅▆▃▁▂▂▁▄▇▃██▃▃ | 1690.0 | 1666.3 | 1705.0 | 1585.1 | 1517.2 | 1548.4 | 1576.0 | 1523.3 | 1625.3 | 1751.7 | 1608.7 | 1792.5 | 1786.3 | 1595.3 | 1586.9 | NA | NA | NA | 1348.0 | NA | NA | NA |
| us-gaap:LongTermDebtCurrent | NA | NA | 160.0 | NA | NA | NA | 178.2 | NA | NA | NA | 293.4 | NA | 384.6 | 200.2 | 256.9 | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:LongTermDebtCurrent us-gaap:StatementBusinessSegments lila:CableWirelessCommunicationsLimitedCW | ▁▁▁▅▂▅▂▂▁▇▅██▂▄ | 67.4 | 63.3 | 59.9 | 193.6 | 101.7 | 200.3 | 84.3 | 83.2 | 64.9 | 254.4 | 192.7 | 269.8 | 281.4 | 98.6 | 159.5 | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LongTermDebtCurrent us-gaap:StatementBusinessSegments lila:Consolidated | █▁ | 163.4 | 161.1 | NA | 283.5 | 185.2 | 279.7 | NA | 178.5 | 164.3 | 356.7 | NA | 371.2 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LongTermDebtCurrent us-gaap:StatementBusinessSegments lila:LibertyLatinAmerica | ▇▇█▄▅▅▅▁▁ | 0.4 | 0.4 | 0.5 | 0.2 | 0.3 | 0.3 | 0.3 | 0.0 | 0.0 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LongTermDebtCurrent us-gaap:StatementBusinessSegments lila:VTRFinanceB.V.VTRFinance | ▇▇█▅▂▁▆▇ | 95.6 | 97.4 | 99.6 | 89.7 | 83.2 | 79.1 | 93.6 | 95.3 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:OperatingLeaseLiabilityCurrent | ▆▇█▁ | 56.4 | 60.8 | 63.2 | 31.6 | NA | NA | 31.5 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:OtherAccruedLiabilitiesCurrent | ▅▅▄▅▅▄▃▅█▇▄█▆▆▁ | 634.6 | 648.5 | 612.6 | 645.5 | 663.3 | 615.7 | 594.7 | 638.7 | 753.6 | 733.5 | 623.6 | 753.4 | 696.2 | 691.2 | 508.4 | NA | NA | NA | 567.4 | 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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:LongTermDebt | ██▇▇██▇▃▃▂▂▂▂▁▁ | 8781.6 | 8769.8 | 8343.8 | 8458.0 | 8838.6 | 8827.0 | 8366.4 | 7083.3 | 7022.4 | 6736.1 | 6669.2 | 6614.6 | 6638.1 | 6402.6 | 6354.0 | NA | NA | NA | 6026.2 | NA | NA | NA |
| us-gaap:LongTermDebtNoncurrent | NA | NA | 8183.8 | NA | NA | NA | 8188.2 | NA | NA | NA | 6375.8 | NA | 6253.5 | 6202.4 | 6097.1 | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:LongTermDebtNoncurrent us-gaap:StatementBusinessSegments lila:CableWirelessCommunicationsLimitedCW | ▅▅▅▅█▇▅▅▄▃▃▁▁▃▂ | 4101.3 | 4101.7 | 4104.2 | 4099.4 | 4412.4 | 4317.4 | 4090.4 | 4065.5 | 4003.3 | 3829.4 | 3834.0 | 3636.0 | 3635.8 | 3852.0 | 3747.9 | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LongTermDebtNoncurrent us-gaap:StatementBusinessSegments lila:Cabletica | ▆▁▁▄▆▆▇▆█▆▆ | 120.8 | 113.4 | 113.1 | 117.5 | 120.4 | 121.2 | 122.1 | 120.6 | 124.1 | 121.7 | 120.7 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LongTermDebtNoncurrent us-gaap:StatementBusinessSegments lila:Consolidated | █▁ | 8618.2 | 8608.7 | NA | 8174.5 | 8653.4 | 8547.3 | NA | 6904.8 | 6858.1 | 6379.4 | NA | 6243.4 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LongTermDebtNoncurrent us-gaap:StatementBusinessSegments lila:LibertyCablevisionofPuertoRicoLLCLibertyPuertoRico | ██▇▇▇▇▆▁▁▁▁▁▁▁▁ | 2570.8 | 2570.1 | 2250.9 | 2268.0 | 2329.2 | 2236.6 | 2173.0 | 915.6 | 915.0 | 934.3 | 933.7 | 973.1 | 972.4 | 971.8 | 971.2 | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LongTermDebtNoncurrent us-gaap:StatementBusinessSegments lila:LibertyLatinAmerica | █▇▆▆▅▄▃▂▁ | 351.5 | 347.7 | 343.9 | 340.5 | 336.9 | 333.0 | 329.7 | 323.7 | 320.3 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LongTermDebtNoncurrent us-gaap:StatementBusinessSegments lila:VTRFinanceB.V.VTRFinance | ▆▆▂▁▅█▆▆ | 1473.8 | 1475.8 | 1371.7 | 1349.1 | 1454.5 | 1539.1 | 1473.0 | 1479.4 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LongTermDebtAndCapitalLeaseObligations | ██▇▇██▇▃▃▂▂▁▁▁▁ | 8629.7 | 8620.1 | 8195.3 | 8175.4 | 8654.5 | 8548.7 | 8189.8 | 6906.3 | 6860.6 | 6382.4 | 6379.6 | 6248.1 | 6257.6 | 6207.1 | 6108.2 | NA | NA | NA | 5897.1 | NA | NA | NA |
| us-gaap:DeferredIncomeTaxLiabilitiesNet | ███▁▂▂▂▂▃▄▆▆▆▅▅ | 638.7 | 627.8 | 619.9 | 361.5 | 404.1 | 390.8 | 401.8 | 389.8 | 440.4 | 473.6 | 543.0 | 570.5 | 567.5 | 516.6 | 533.4 | NA | NA | NA | 637.9 | NA | NA | NA |
| us-gaap:MinorityInterest | ▁▁▁▁▁▃▃▃▄▄▄████ | 725.3 | 730.4 | 729.0 | 751.3 | 758.4 | 866.1 | 870.1 | 907.6 | 1024.7 | 1023.2 | 1010.8 | 1358.4 | 1351.8 | 1350.2 | 1361.0 | NA | NA | NA | 1480.8 | NA | NA | NA |
| us-gaap:OtherLiabilitiesNoncurrent | ▅▆█▄▃▃▁▁▃▃▄▅▅▄▃ | 835.4 | 926.0 | 1080.8 | 761.2 | 725.9 | 695.7 | 579.1 | 581.0 | 750.8 | 687.4 | 791.9 | 855.0 | 858.3 | 783.1 | 697.8 | NA | NA | NA | 600.5 | NA | NA | NA |
| us-gaap:OperatingLeaseLiabilityNoncurrent | ▇██▁ | 256.0 | 261.6 | 269.7 | 111.6 | NA | NA | 119.2 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo | ▆▆█▁ | 54.6 | 53.1 | 62.7 | 29.4 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree | ▇▇█▁ | 46.7 | 45.6 | 51.4 | 23.4 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour | ▆▅█▁ | 36.5 | 34.7 | 44.4 | 19.8 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive | ▇▇█▁ | 31.4 | 30.8 | 34.6 | 13.5 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive | ▆▆█▁ | 107.6 | 105.6 | 136.9 | 43.1 | 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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:StockholdersEquity | ▄▃▃▃▁▅▆▅▅▆▆▆▇▇█ | 2810.7 | 2805.9 | 2714.7 | 2776.4 | 2521.5 | 2943.3 | 3109.8 | 3024.1 | 2979.2 | 3095.1 | 3112.6 | 3126.9 | 3209.6 | 3246.7 | 3329.6 | NA | NA | NA | 4179.6 | NA | NA | NA |
| us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | ▂▂▂▂▁▄▄▄▅▅▅▇▇██ | 3536.0 | 3536.3 | 3443.7 | 3527.7 | 3279.9 | 3809.4 | 3979.9 | 3931.7 | 4003.9 | 4118.3 | 4123.4 | 4485.3 | 4561.4 | 4596.9 | 4690.6 | NA | NA | NA | 5660.4 | NA | NA | NA |
| us-gaap:CommonStockValue us-gaap:ConsolidatedEntities,us-gaap:StatementClassOfStock srt:ParentCompany,us-gaap:CommonClassC | NA | NA | 1.8 | NA | NA | NA | 1.3 | NA | NA | NA | 1.3 | NA | NA | NA | 1.2 | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:CommonStockValue us-gaap:StatementClassOfStock us-gaap:CommonClassC | ████▂▂▂▂▂▂▂▁▁▁▁ | 1.8 | 1.8 | 1.8 | 1.8 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.2 | 1.2 | 1.2 | 1.2 | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:AdditionalPaidInCapital | ██▇▇▃▃▃▃▃▂▂▁▁▁▁ | 5032.5 | 5009.8 | 4982.0 | 4972.4 | 4606.2 | 4592.2 | 4569.9 | 4563.0 | 4549.3 | 4508.6 | 4494.1 | 4413.6 | 4404.2 | 4397.5 | 4402.8 | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:RetainedEarningsAccumulatedDeficit | ▂▂▁▁▂▄▅▅▅▆▆▇▇██ | -2042.3 | -2046.7 | -2134.5 | -2105.6 | -2021.0 | -1628.0 | -1447.1 | -1489.4 | -1524.7 | -1408.7 | -1367.0 | -1134.0 | -1108.5 | -1066.3 | -1010.7 | NA | NA | NA | -232.6 | NA | NA | NA |
| us-gaap:RetainedEarningsAccumulatedDeficit us-gaap:ConsolidatedEntities srt:ParentCompany | NA | NA | -2134.5 | NA | NA | NA | -1447.1 | NA | NA | NA | -1367.0 | NA | NA | NA | -1010.7 | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax | ▁▂▃▅▆▇█▆▆██▁▄▄▅ | -162.3 | -150.0 | -125.6 | -83.2 | -56.0 | -21.0 | -14.8 | -51.3 | -47.2 | -6.6 | -16.3 | -154.4 | -87.8 | -86.2 | -64.2 | NA | NA | NA | -16.7 | NA | NA | NA |
| us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:ConsolidatedEntities srt:ParentCompany | NA | NA | -125.6 | NA | NA | NA | -14.8 | NA | NA | NA | -16.3 | NA | NA | NA | -64.2 | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:TreasuryStockValue | █▄▄▄▄▂▁ | 19.5 | 9.5 | 9.5 | 9.5 | 9.5 | 1.7 | 0.0 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:MinorityInterest | ▁▁▁▁▁▃▃▃▄▄▄████ | 725.3 | 730.4 | 729.0 | 751.3 | 758.4 | 866.1 | 870.1 | 907.6 | 1024.7 | 1023.2 | 1010.8 | 1358.4 | 1351.8 | 1350.2 | 1361.0 | NA | NA | NA | 1480.8 | NA | NA | NA |
| us-gaap:StockIssuedDuringPeriodValueNewIssues | NA | NA | -2.6 | 347.7 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementClassOfStock,us-gaap:StatementEquityComponents us-gaap:CommonClassC,us-gaap:CommonStock | NA | NA | 0.0 | 0.5 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapital | NA | NA | -2.6 | 347.2 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:StockIssuedDuringPeriodValueNewIssues us-gaap:StatementEquityComponents us-gaap:Parent | NA | NA | -2.6 | 347.7 | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue | ▆█▃▅▃▆▁▃▂▄▃▂▁▁ | 22.7 | 27.9 | 12.199999999999992 | 19.0 | 14.0 | 21.4 | 6.9 | 12.9 | 9.7 | 14.5 | 11.8 | 10.4 | 6.7 | 7.4 | NA | NA | NA | NA | NA | NA | NA | NA |
| us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders | ▄ | 1.3 | NA | NA | NA | NA | NA | 35.1 | 0.1 | 2.5 | NA | 2.9 | 0.0 | 19.8 | 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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:NetCashProvidedByUsedInOperatingActivities | ▆▅▃▃▆▂█▃▆▄▅▅▅▃▄▂▅▁ | 240.2 | 203.5 | 149.1 | 137.4 | 238.7 | 114.9 | 327.8 | 159.0 | 243.6 | 187.8 | 208.1 | 210.7 | 234.8 | 163.2 | 181.6 | 93.7 | 223.6 | 75.0 | NA | NA | NA | NA |
| us-gaap:NetCashProvidedByUsedInInvestingActivities | ██▁██████▇▇█▇█████ | -214.5 | -126.4 | -2031.9 | -155.8 | -116.0 | -147.1 | -78.4 | -135.5 | -135.9 | -285.5 | -389.0 | -167.0 | -236.7 | -187.8 | -186.0 | -202.8 | -124.3 | -127.0 | NA | NA | NA | NA |
| us-gaap:NetCashProvidedByUsedInFinancingActivities | ▂▄▁▁▃▄█▂▃▂▂▂▃▂▂▂▂▂ | -29.6 | 333.0 | -193.8 | -122.5 | 132.0 | 455.4 | 1189.4 | 30.0 | 281.1 | 39.3 | 39.0 | -6.2 | 235.1 | -11.8 | -6.2 | 34.6 | -21.1 | 34.5 | NA | NA | NA | NA |
| us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect | ▅▆▁▅▆▆█▅▆▅ | -6.3 | 412.9 | -2070.4 | -140.8 | 252.0 | 414.7 | 1436.5 | 45.6 | 388.8 | -55.9 | 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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:DeferredIncomeTaxExpenseBenefit | ▆▅▅▁▅▃█▁▅▃▄▅▃▄▂▂▃▄ | 19.9 | 7.2 | 4.4000000000000075 | -50.5 | 1.3 | -20.3 | 48.8 | -56.6 | -3.3 | -21.6 | -10.3 | 6.9 | -22.0 | -7.5 | -44.2 | -40.3 | -33.3 | -17.3 | NA | NA | NA | NA |
| us-gaap:DepreciationDepletionAndAmortization | █▇█▅▄▃▂▅▄▄▄▂▃▂▃▂▁▁ | 254.0 | 245.9 | 253.1 | 231.6 | 216.4 | 213.5 | 205.7 | 226.0 | 222.0 | 217.3 | 215.1 | 204.8 | 207.6 | 202.3 | 207.2 | 199.7 | 192.9 | 193.9 | NA | NA | NA | NA |
| us-gaap:NetCashProvidedByUsedInOperatingActivities | ▆▅▃▃▆▂█▃▆▄▅▅▅▃▄▂▅▁ | 240.2 | 203.5 | 149.1 | 137.4 | 238.7 | 114.9 | 327.8 | 159.0 | 243.6 | 187.8 | 208.1 | 210.7 | 234.8 | 163.2 | 181.6 | 93.7 | 223.6 | 75.0 | NA | NA | NA | NA |
| us-gaap:NetIncomeLoss | ▇█▆▆▁▄▇▇▅▆▃▆▆▆▁▂▆▇▅▄▅▆ | 4.4 | 87.8 | -28.9 | -84.6 | -393.0 | -180.7 | 42.3 | 35.3 | -116.0 | -41.7 | -233.0 | -25.5 | -42.2 | -44.5 | -400.8 | -343.3 | -28.2 | -5.8 | -107.2 | -162.3 | -123.4 | -39.4 |
| us-gaap:ProfitLoss | ▇█▇▆▁▅▇▆▆▇▁▇▇▆▂▃▇▇ | 1.0 | 89.4 | -34.1 | -90.0 | -500.2 | -184.6 | 39.7 | -69.7 | -111.2 | -41.2 | -535.2 | -18.8 | -27.5 | -54.3 | -440.9 | -355.7 | -12.7 | 10.6 | NA | NA | NA | NA |
| us-gaap:ShareBasedCompensation | █▆▆▇▆▆▃▄▄▄▃▃▂▂▁▁▁▂ | 32.8 | 23.0 | 22.2 | 28.0 | 23.5 | 23.8 | 12.3 | 15.1 | 15.4 | 14.7 | 13.0 | 11.6 | 8.7 | 6.5 | 2.3 | 3.3 | 3.0 | 5.6 | 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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:NetCashProvidedByUsedInInvestingActivities | ██▁██████▇▇█▇█████ | -214.5 | -126.4 | -2031.9 | -155.8 | -116.0 | -147.1 | -78.4 | -135.5 | -135.9 | -285.5 | -389.0 | -167.0 | -236.7 | -187.8 | -186.0 | -202.8 | -124.3 | -127.0 | NA | NA | NA | NA |
| us-gaap:PaymentsToAcquirePropertyPlantAndEquipment | ▅▂▄▂▂▁▆▄▃▁▄▃▅▄█▄▃▁ | 214.7 | 152.4 | 188.0 | 156.9 | 153.3 | 132.9 | 229.4 | 186.9 | 166.1 | 139.1 | 190.0 | 169.8 | 217.6 | 194.0 | 273.2 | 193.4 | 170.9 | 139.2 | NA | NA | NA | NA |
| us-gaap:PaymentsToAcquireProductiveAssets | ▆▂▃▃▁▃▃▂▂▃▅▄█▅▅▆▁▁ | 198.6 | 135.6 | 147.5 | 146.9 | 122.2 | 149.2 | 157.1 | 136.6 | 135.8 | 159.6 | 183.4 | 167.9 | 236.9 | 188.2 | 191.8 | 199.2 | 123.9 | 124.4 | 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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:NetCashProvidedByUsedInFinancingActivities | ▂▄▁▁▃▄█▂▃▂▂▂▃▂▂▂▂▂ | -29.6 | 333.0 | -193.8 | -122.5 | 132.0 | 455.4 | 1189.4 | 30.0 | 281.1 | 39.3 | 39.0 | -6.2 | 235.1 | -11.8 | -6.2 | 34.6 | -21.1 | 34.5 | NA | NA | NA | NA |
| us-gaap:ProceedsFromIssuanceOfLongTermDebt | ▁▄▁▄▁▄▇▂▆▂▄▁▃▂▁█▁▂ | 36.5 | 696.0 | 30.0 | 636.1 | 113.3 | 539.6 | 1325.7 | 320.0 | 1119.9 | 201.3 | 682.0 | 27.6 | 335.7 | 190.0 | 85.7 | 1455.6 | 81.9 | 136.5 | NA | NA | NA | NA |
| us-gaap:RepaymentsOfLongTermDebt us-gaap:DebtInstrument,us-gaap:LongtermDebtType lila:A2028VTRFinanceSeniorNotes,us-gaap:SeniorNotes | 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 | NA | NA | 0.0 | 0.0 | 8.1 | 1.4 | NA | NA | 0.0 | 0.0 | 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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType lila:A2028VTRFinanceSeniorNotes,us-gaap:SeniorNotes,us-gaap:SubsequentEvent | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| us-gaap:DebtInstrumentInterestRateStatedPercentage us-gaap:DebtInstrument,us-gaap:LongtermDebtType,us-gaap:SubsequentEventType lila:A2028VTRSeniorSecuredNotes,us-gaap:SeniorNotes,us-gaap:SubsequentEvent | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 1800000.0 | 1300000.0 | 1300000.0 | 1200000.0 |
| Percentage of CommonStockValue | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of Assets srt:ParentCompany us-gaap:CommonClassC | 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 |
| Value | 1800000.0 | 1800000.0 | 1800000.0 | 1800000.0 | 1300000.0 | 1300000.0 | 1300000.0 | 1300000.0 | 1300000.0 | 1300000.0 | 1300000.0 | 1200000.0 | 1200000.0 | 1200000.0 | 1200000.0 |
| Percentage of CommonStockValue | 0.0 | 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 | 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 |
| Percentage of Assets us-gaap:CommonClassC | 0.0 | 0.0 | 0.0 | 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 | 2019-12-31 | 2019-09-30 | 2018-09-30 |
| Value | 234 | 252 | 185 | 185 | 184 | 181 | 181 | 171 |
| Percentage of WeightedAverageNumberOfDilutedSharesOutstanding | 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 | 2018-09-30 |
| Value | 233 | 232 | 232 | 185 | 185 | 184 | 181 | 181 | 181 | 181 | 171 |
| 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 |
| Period End | 2021-03-31 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-06-30 | 2018-03-31 |
| Value | 17 | 22 | 15 | 15 | 13 | 14 | 10 |
| Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-06-30 | 2018-03-31 |
| Value | 2.0 | 2.0 | 0.5 | 1.3 | 1.6 | 1.2 | 1.2 |
| Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount | 11.4 | 9.0 | 3.2 | 8.2 | 12.2 | 8.4 | 11.4 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-06-30 | 2020-03-31 |
| Value | 0.02 | 0.38 | -2.12 | -0.98 |
| Percentage of EarningsPerShareBasic | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-06-30 | 2020-03-31 |
| Value | 0.02 | 0.37 | -2.12 | -0.98 |
| Percentage of EarningsPerShareDiluted | 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 | 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 | -0.12 | -0.46 | -2.15 | -0.99 | 0.23 | 0.19 | -0.64 | -0.23 | -1.3 | -0.15 | -0.25 | -0.26 | -2.34 | -2.0 | -0.16 | -0.03 | -0.62 | -0.93 | -1.12 | -0.9 |
| Percentage of EarningsPerShareBasicAndDiluted | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 32 | 23 | 22 | 28 | 23 | 23 | 12 | 15 | 15 | 14 | 13 | 11 | 8.7 | 6.5 | 2.3 | 3.3 | 3.0 | 5.6 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 2.8 | 2.0 | 2.0 | 3.2 | 2.8 | 2.6 | 1.3 | 1.6 | 1.6 | 1.6 | 1.4 | 1.3 | 0.9 | 0.7 | 0.3 | 0.4 | 0.3 | 0.6 |
| Period End | 2020-09-30 |
| Value | 7.0 |
| Percentage of AllocatedShareBasedCompensationExpense | 25.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 0.8 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax lila:LibertyGlobal | 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 | -7.9 | 63 | -71.3 | -111.8 | -428.0 | -186.9 | 78 | 31 | -156.6 | -32.0 | -94.9 | -92.1 | -44.2 | -73.3 | -362.7 | -379.4 | -65.1 | -18.4 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -0.7 | 5.5 | -6.5 | -12.6 | -50.4 | -20.1 | 8.1 | 3.2 | -15.9 | -3.4 | -10.0 | -10.0 | -4.8 | -8.1 | -42.7 | -41.8 | -7.1 | -2.0 |
| 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 | -3.8 | 1.4 | -5.2 | -5.5 | -107.7 | -4.1 | -2.4 | -105.3 | 4.3 | 0.8 | -301.1 | 6.2 | 13 | -10.3 | -38.6 | -12.4 | 15 | 15 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -0.3 | 0.1 | -0.5 | -0.6 | -12.7 | -0.4 | -0.2 | -10.9 | 0.4 | 0.1 | -31.7 | 0.7 | 1.4 | -1.1 | -4.5 | -1.4 | 1.7 | 1.7 |
| 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 |
| Value | -11.7 | 64 | -76.5 | -117.3 | -535.7 | -191.0 | 76 | -74.1 | -152.3 | -31.2 | -396.0 | -85.9 | -30.9 | -83.6 | -401.3 | -391.8 | -49.7 | -2.5 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -1.0 | 5.6 | -7.0 | -13.2 | -63.1 | -20.5 | 7.8 | -7.7 | -15.5 | -3.3 | -41.8 | -9.3 | -3.4 | -9.2 | -47.2 | -43.1 | -5.4 | -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 |
| Value | 275 | 280 | 265 | 189 | 179 | 210 | 216 | 218 | 226 | 227 | 237 | 218 | 218 | 215 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 23.6 | 24.2 | 24.2 | 21.4 | 21.2 | 22.6 | 22.2 | 22.6 | 23.0 | 24.2 | 25.0 | 23.6 | 23.7 | 23.7 |
| 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 |
| Value | 95 | 102 | 99 | 35 | 28 | 43 | 62 | 43 |
| Percentage of CostOfGoodsAndServicesSold | 34.6 | 36.4 | 37.4 | 18.7 | 15.6 | 20.8 | 28.8 | 20.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 8.2 | 8.8 | 9.1 | 4.0 | 3.3 | 4.7 | 6.4 | 4.5 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax lila:EquipmentAndOther | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-06-30 | 2020-03-31 |
| Value | 65 | 66 | 58 | 66 |
| Percentage of CostOfGoodsAndServicesSold | 23.9 | 23.7 | 32.7 | 31.5 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 5.6 | 5.7 | 6.9 | 7.1 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax lila:Interconnect | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2019-12-31 | 2019-09-30 |
| Value | 66 | 58 | 66 | 69 |
| Percentage of CostOfGoodsAndServicesSold | 25.1 | 30.7 | 30.6 | 31.7 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 6.1 | 6.6 | 6.8 | 7.2 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax lila:InterconnectAndCommissions | 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 |
| Value | 114 | 111 | 99 | 96 | 92 | 100 | 85 | 102 |
| Percentage of CostOfGoodsAndServicesSold | 41.5 | 39.9 | 37.5 | 50.6 | 51.7 | 47.7 | 39.4 | 47.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 9.8 | 9.6 | 9.1 | 10.8 | 10.9 | 10.8 | 8.7 | 10.6 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax lila:ProgrammingAndCopyright | 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 | 1007 | 981 | 993 | 800 | 1054 | 823 | 807 | 1036 | 839 | 829 | 1333 | 786 | 797 | 811 | 1083 | 1113 | 765 | 776 |
| Percentage of CostsAndExpenses | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 RevenueFromContractWithCustomerIncludingAssessedTax | 86.3 | 84.6 | 90.6 | 90.2 | 124.3 | 88.4 | 82.9 | 107.2 | 85.4 | 88.0 | 140.6 | 85.0 | 86.5 | 89.2 | 127.4 | 122.7 | 83.1 | 85.2 |
| 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 | 0.0 | -23.3 | 0.0 | -41.7 | 0.0 | -3.4 | -6.8 | -3.5 | -9.5 | 0.0 | -19.1 | 0.0 | 0.0 | -13.0 | 1.8 | -25.8 | -27.8 | 0.0 |
| Percentage of GainsLossesOnExtinguishmentOfDebt | 0.0 | 100.0 | 0.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 0.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 0.0 | -2.0 | 0.0 | -4.7 | 0.0 | -0.4 | -0.7 | -0.4 | -1.0 | 0.0 | -2.0 | 0.0 | 0.0 | -1.4 | 0.2 | -2.8 | -3.0 | 0.0 |
| Period End | 2020-07-31 | 2018-10-31 |
| Value | 42 | -6.0 |
| Percentage of GainsLossesOnExtinguishmentOfDebt | 0.0 | 0.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 0.0 | 0.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax lila:A2028VTRFinanceSeniorNotes us-gaap:SeniorNotes | 0.0 | 0.0 |
| Period End | 2021-03-31 |
| Value | -2.1 |
| Percentage of GainsLossesOnExtinguishmentOfDebt | 9.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -0.2 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax lila:A2028VTRSeniorSecuredNotes us-gaap:SeniorNotes | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 0.0 | 0.0 | 0.0 | -3.0 |
| Percentage of GainsLossesOnExtinguishmentOfDebt | 0.0 | -0.0 | 0.0 | 88.2 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 0.0 | 0.0 | 0.0 | -0.3 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax lila:CWTermLoanB4Facility us-gaap:LineOfCredit | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-03-31 |
| Value | -14.3 |
| Percentage of GainsLossesOnExtinguishmentOfDebt | 61.4 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -1.2 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax lila:LPRFirstLienTermLoan us-gaap:LineOfCredit | 0.0 |
| Period End | 2021-03-31 |
| Value | -5.6 |
| Percentage of GainsLossesOnExtinguishmentOfDebt | 24.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -0.5 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax lila:VTRTLB1Facility us-gaap:MediumTermNotes | 0.0 |
| Period End | 2021-03-31 |
| Value | -1.3 |
| Percentage of GainsLossesOnExtinguishmentOfDebt | 5.6 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -0.1 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax lila:VTRTLB2Facility us-gaap:MediumTermNotes | 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 | 39 | 117 | -30.0 | -132.8 | -496.4 | -179.0 | 90 | -252.1 | -81.7 | -36.8 | -570.4 | 9.1 | 14 | -37.5 | -331.8 | -361.5 | 8.4 | 33 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 3.3 | 10.1 | -2.7 | -15.0 | -58.5 | -19.2 | 9.2 | -26.1 | -8.3 | -3.9 | -60.1 | 1.0 | 1.5 | -4.1 | -39.0 | -39.8 | 0.9 | 3.7 |
| 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 |
| Value | 38 | 28 | 4.1 | -42.8 | 3.8 | 5.6 | 50 | -182.4 | 29 | 4.4 | -35.2 | 27 | 41 | 16 | 109 | -5.8 | 21 | 23 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 3.3 | 2.4 | 0.4 | -4.8 | 0.4 | 0.6 | 5.2 | -18.9 | 3.0 | 0.5 | -3.7 | 3.0 | 4.5 | 1.8 | 12.8 | -0.6 | 2.3 | 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 |
| Value | 25 | 14 | 39 | 28 | 1.5 | 12 | 29 | 40 | 38 | 21 | 33 | 28 | 54 | 29 | 24 | 31 | 20 | 34 |
| Percentage of IncomeTaxesPaidNet | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 RevenueFromContractWithCustomerIncludingAssessedTax | 2.2 | 1.3 | 3.6 | 3.2 | 0.2 | 1.3 | 3.1 | 4.2 | 3.9 | 2.3 | 3.5 | 3.1 | 5.9 | 3.2 | 2.9 | 3.4 | 2.3 | 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 |
| Value | 133 | 126 | 124 | 129 | 135 | 143 | 139 | 123 | 119 | 115 | 121 | 110 | 109 | 102 | 92 | 99 | 96 | 94 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 11.4 | 10.9 | 11.4 | 14.6 | 15.9 | 15.4 | 14.3 | 12.8 | 12.2 | 12.3 | 12.8 | 11.9 | 11.9 | 11.3 | 10.8 | 10.9 | 10.4 | 10.4 |
| 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 |
| Value | 88 | 138 | 99 | 137 | 101 | 145 | 73 | 138 | 77 | 155 | 70 | 145 | 46 | 156 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 7.6 | 11.9 | 9.1 | 15.5 | 12.0 | 15.6 | 7.6 | 14.3 | 7.9 | 16.5 | 7.4 | 15.7 | 5.0 | 17.2 |
| 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 |
| Value | 4.4 | 87 | -28.9 | -84.6 | -393.0 | -180.7 | 42 | 35 | -116.0 | -41.7 | -233.0 | -25.5 | -42.2 | -44.5 | -400.8 | -343.3 | -28.2 | -5.8 | -107.2 | -162.3 | -123.4 | -39.4 |
| 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 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 0.4 | 7.6 | -2.6 | -9.5 | -46.3 | -19.4 | 4.3 | 3.7 | -11.8 | -4.4 | -24.6 | -2.8 | -4.6 | -4.9 | -47.1 | -37.8 | -3.1 | -0.6 | -11.6 | -18.2 | -20.5 | -13.0 |
| 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 | -3.4 | 1.6 | -5.2 | -5.4 | -107.2 | -3.9 | -2.6 | -105.0 | 4.8 | 0.5 | -302.2 | 6.7 | 14 | -9.8 | -40.1 | -12.4 | 15 | 16 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -0.3 | 0.1 | -0.5 | -0.6 | -12.6 | -0.4 | -0.3 | -10.9 | 0.5 | 0.1 | -31.9 | 0.7 | 1.6 | -1.1 | -4.7 | -1.4 | 1.7 | 1.8 |
| Period End | 2021-06-30 |
| Value | 4.4 |
| Percentage of NetIncomeLossAvailableToCommonStockholdersBasic | 100.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 0.4 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 4.4 | 93 |
| Percentage of NetIncomeLossAvailableToCommonStockholdersDiluted | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 0.4 | 8.1 |
| 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 |
| Value | -121.2 | -60.8 | -133.3 | -219.4 | -290.4 | -286.8 | -76.7 | -182.4 | -225.2 | -150.1 | -185.5 | -129.7 | -110.1 | -135.8 | -98.9 | -155.8 | -147.0 | -101.1 |
| Percentage of NonoperatingIncomeExpense | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 RevenueFromContractWithCustomerIncludingAssessedTax | -10.4 | -5.2 | -12.1 | -24.7 | -34.2 | -30.8 | -7.9 | -18.9 | -22.9 | -15.9 | -19.6 | -14.0 | -11.9 | -14.9 | -11.6 | -17.2 | -16.0 | -11.1 |
| 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 |
| Value | 160 | 178 | 103 | 86 | -206.0 | 107 | 166 | -69.7 | 143 | 113 | -384.9 | 138 | 124 | 98 | -243.6 | -201.5 | 158 | 138 | 141 | 138 | -20.9 | 60 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 13.7 | 15.4 | 9.4 | 9.8 | -24.3 | 11.6 | 17.1 | -7.2 | 14.6 | 12.0 | -40.6 | 15.0 | 13.5 | 10.8 | -28.7 | -22.2 | 17.2 | 15.1 | 15.3 | 15.5 | -3.5 | 19.7 |
| 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 |
| Value | -12.7 | -24.6 | -42.4 | -27.3 | -35.5 | -6.4 | 36 | -4.4 | -41.1 | 10.0 | 139 | -67.1 | -3.4 | -29.3 | 39 | -36.1 | -37.0 | -13.1 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -1.1 | -2.1 | -3.9 | -3.1 | -4.2 | -0.7 | 3.8 | -0.5 | -4.2 | 1.1 | 14.7 | -7.3 | -0.4 | -3.2 | 4.7 | -4.0 | -4.0 | -1.4 |
| 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 |
| Value | -12.3 | -24.4 | -42.4 | -27.2 | -35.0 | -6.2 | 36 | -4.1 | -40.6 | 9.7 | 138 | -66.6 | -2.0 | -28.8 |
| Percentage of OtherComprehensiveIncomeLossNetOfTax | 96.9 | 99.2 | 100.0 | 99.6 | 98.6 | 96.9 | 99.5 | 93.2 | 98.8 | 97.0 | 99.2 | 99.3 | 58.8 | 98.3 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -1.1 | -2.1 | -3.9 | -3.1 | -4.1 | -0.7 | 3.7 | -0.4 | -4.1 | 1.0 | 14.6 | -7.2 | -0.2 | -3.2 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax 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 |
| 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 | -0.4 | -0.2 | 0.0 | -0.1 | -0.5 | -0.2 | 0.2 | -0.3 | -0.5 | 0.3 | 1.1 | -0.5 | -1.4 | -0.5 |
| Percentage of OtherComprehensiveIncomeLossNetOfTax | 3.1 | 0.8 | -0.0 | 0.4 | 1.4 | 3.1 | 0.5 | 6.8 | 1.2 | 3.0 | 0.8 | 0.7 | 41.2 | 1.7 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -0.0 | -0.0 | 0.0 | -0.0 | -0.1 | -0.0 | 0.0 | -0.0 | -0.1 | 0.0 | 0.1 | -0.1 | -0.2 | -0.1 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax 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 |
| 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 | -12.3 | -24.4 | -42.4 | -27.2 | -35.0 | -6.2 | 36 | -4.1 | -40.6 | 9.7 | 138 | -66.6 | -2.0 | -28.8 |
| Percentage of OtherComprehensiveIncomeLossNetOfTax | 96.9 | 99.2 | 100.0 | 99.6 | 98.6 | 96.9 | 99.5 | 93.2 | 98.8 | 97.0 | 99.2 | 99.3 | 58.8 | 98.3 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -1.1 | -2.1 | -3.9 | -3.1 | -4.1 | -0.7 | 3.7 | -0.4 | -4.1 | 1.0 | 14.6 | -7.2 | -0.2 | -3.2 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax 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 |
| 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 | -0.4 | -0.6 | -11.7 | 0.2 | 4.8 | 6.8 | 4.9 | 4.4 | 2.6 | 2.4 | 1.8 | -12.0 | 4.8 | 5.3 | -6.9 | 4.4 | 3.0 | 6.0 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -0.0 | -0.1 | -1.1 | 0.0 | 0.6 | 0.7 | 0.5 | 0.5 | 0.3 | 0.3 | 0.2 | -1.3 | 0.5 | 0.6 | -0.8 | 0.5 | 0.3 | 0.7 |
| 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 |
| Value | 1.0 | 89 | -34.1 | -90.0 | -500.2 | -184.6 | 39 | -69.7 | -111.2 | -41.2 | -535.2 | -18.8 | -27.5 | -54.3 | -440.9 | -355.7 | -12.7 | 10 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 0.1 | 7.7 | -3.1 | -10.1 | -58.9 | -19.8 | 4.1 | -7.2 | -11.3 | -4.4 | -56.4 | -2.0 | -3.0 | -6.0 | -51.9 | -39.2 | -1.4 | 1.2 |
| 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 |
| Value | -3.4 | 1.6 | -5.2 | -5.4 | -107.2 | -3.9 | -2.6 | -105.0 | 4.8 | 0.5 | -302.2 | 6.7 | 14 | -9.8 |
| Percentage of ProfitLoss | -340.0 | 1.8 | 15.2 | 6.0 | 21.4 | 2.1 | -6.5 | 150.6 | -4.3 | -1.2 | 56.5 | -35.6 | -53.5 | 18.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -0.3 | 0.1 | -0.5 | -0.6 | -12.6 | -0.4 | -0.3 | -10.9 | 0.5 | 0.1 | -31.9 | 0.7 | 1.6 | -1.1 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax 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 |
| 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 | 4.4 | 87 | -28.9 | -84.6 | -393.0 | -180.7 | 42 | 35 | -116.0 | -41.7 | -233.0 | -25.5 | -42.2 | -44.5 |
| Percentage of ProfitLoss | 440.0 | 98.2 | 84.8 | 94.0 | 78.6 | 97.9 | 106.5 | -50.6 | 104.3 | 101.2 | 43.5 | 135.6 | 153.5 | 82.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 0.4 | 7.6 | -2.6 | -9.5 | -46.3 | -19.4 | 4.3 | 3.7 | -11.8 | -4.4 | -24.6 | -2.8 | -4.6 | -4.9 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax 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 |
| 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 | 4.4 | 87 | -28.9 | -84.6 | -393.0 | -180.7 | 42 | 35 | -116.0 | -41.7 | -233.0 | -25.5 | -42.2 | -44.5 |
| Percentage of ProfitLoss | 440.0 | 98.2 | 84.8 | 94.0 | 78.6 | 97.9 | 106.5 | -50.6 | 104.3 | 101.2 | 43.5 | 135.6 | 153.5 | 82.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 0.4 | 7.6 | -2.6 | -9.5 | -46.3 | -19.4 | 4.3 | 3.7 | -11.8 | -4.4 | -24.6 | -2.8 | -4.6 | -4.9 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax 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 |
| 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 | 1168 | 1159 | 1097 | 887 | 848 | 931 | 974 | 966 | 982 | 942 | 948 | 925 | 922 | 909 | 850 | 908 | 920 | 910 | 922 | 894 | 602 | 303 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 RevenueFromContractWithCustomerIncludingAssessedTax | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 |
| Value | 53 | 52 | 47 | 38 | 39 | 42 | 42 | 41 | 43 |
| Percentage of SellingAndMarketingExpense | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 4.6 | 4.5 | 4.4 | 4.4 | 4.6 | 4.5 | 4.3 | 4.3 | 4.4 |
| 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 | 2016-12-31 |
| Value | 15497 | 15549 | 15230 | 14597 | 14774 | 15198 | 14937 | 13542 | 13907 | 13643 | 13446 | 13951 | 14031 | 13699 | 13616 | 14143 |
| 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 |
| 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 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 3123 | 3704 | 3232 | 3435 |
| Percentage of Assets | 20.5 | 24.8 | 24.0 | 25.2 |
| Percentage of Assets | 20.5 | 24.8 | 24.0 | 25.2 |
| Percentage of Assets srt:ParentCompany | 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 | 2016-12-31 |
| Value | 11961 | 12012 | 11786 | 11070 | 11494 | 11389 | 10957 | 9610 | 9903 | 9525 | 9323 | 9466 | 9469 | 9102 | 8926 | 8483 |
| 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 |
| Percentage of Assets | 77.2 | 77.3 | 77.4 | 75.8 | 77.8 | 74.9 | 73.4 | 71.0 | 71.2 | 69.8 | 69.3 | 67.9 | 67.5 | 66.4 | 65.6 | 60.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 409 | 594 | 119 | 105 |
| Percentage of Liabilities | 3.5 | 5.4 | 1.3 | 1.2 |
| Percentage of Assets | 2.7 | 4.0 | 0.9 | 0.8 |
| Percentage of Assets srt:ParentCompany | 13.1 | 16.0 | 3.7 | 3.1 |
| 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 | 2016-12-31 |
| Value | 15497 | 15549 | 15230 | 14597 | 14774 | 15198 | 14937 | 13542 | 13907 | 13643 | 13446 | 13951 | 14031 | 13699 | 13616 | 14143 |
| 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 |
| 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 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 3123 | 3704 | 3232 | 3435 |
| Percentage of LiabilitiesAndStockholdersEquity | 20.5 | 24.8 | 24.0 | 25.2 |
| Percentage of Assets | 20.5 | 24.8 | 24.0 | 25.2 |
| Percentage of Assets srt:ParentCompany | 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 | 2016-12-31 |
| Value | 2810 | 2805 | 2714 | 2776 | 2521 | 2943 | 3109 | 3024 | 2979 | 3095 | 3112 | 3126 | 3209 | 3246 | 3329 | 4179 |
| 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 |
| Percentage of Assets | 18.1 | 18.0 | 17.8 | 19.0 | 17.1 | 19.4 | 20.8 | 22.3 | 21.4 | 22.7 | 23.1 | 22.4 | 22.9 | 23.7 | 24.5 | 29.6 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 2714 | 3109 | 3112 | 3329 |
| Percentage of StockholdersEquity | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 17.8 | 20.8 | 23.1 | 24.5 |
| Percentage of Assets srt:ParentCompany | 86.9 | 84.0 | 96.3 | 96.9 |
| 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 | 2016-12-31 |
| Value | 2520 | 2408 | 1951 | 2405 | 2541 | 2455 | 2055 | 1932 | 1979 | 1548 | 1644 | 1701 | 1632 | 1402 | 1374 | 1509 |
| 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 |
| Percentage of Assets | 16.3 | 15.5 | 12.8 | 16.5 | 17.2 | 16.2 | 13.8 | 14.3 | 14.2 | 11.4 | 12.2 | 12.2 | 11.6 | 10.2 | 10.1 | 10.7 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 319 | 586 | 73 | 105 |
| Percentage of AssetsCurrent | 16.4 | 28.5 | 4.5 | 7.7 |
| Percentage of Assets | 2.1 | 3.9 | 0.5 | 0.8 |
| Percentage of Assets srt:ParentCompany | 10.2 | 15.8 | 2.3 | 3.1 |
| 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 | 2016-12-31 | 2015-12-31 | 2014-12-31 |
| Value | 1311 | 1305 | 894 | 1611 | 1752 | 1593 | 1183 | 1004 | 957 | 568 | 631 | 525 | 738 | 510 | 529 | 552 | 274 | 107 |
| 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 |
| Percentage of Assets | 8.5 | 8.4 | 5.9 | 11.0 | 11.9 | 10.5 | 7.9 | 7.4 | 6.9 | 4.2 | 4.7 | 3.8 | 5.3 | 3.7 | 3.9 | 3.9 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 193 | 524 | 49 | 105 |
| Percentage of CashAndCashEquivalentsAtCarryingValue | 21.6 | 44.3 | 7.9 | 19.9 |
| Percentage of Assets | 1.3 | 3.5 | 0.4 | 0.8 |
| Percentage of Assets srt:ParentCompany | 6.2 | 14.2 | 1.5 | 3.1 |
| 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 | 2015-12-31 |
| Value | 1319 | 1325 | 912 | 2982 | 3123 | 2871 | 2457 | 1020 | 974 | 586 | 642 | 786 | 749 | 531 | 568 | 569 | 638 | 562 | 580 | 274 |
| 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 | 8.5 | 8.5 | 6.0 | 20.4 | 21.1 | 18.9 | 16.4 | 7.5 | 7.0 | 4.3 | 4.8 | 5.6 | 5.3 | 3.9 | 4.2 | 0.0 | 0.0 | 0.0 | 4.1 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2017-07-10 |
| Value | 193 | 524 | 49 | 105 | 0.0 |
| Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents | 21.2 | 21.4 | 7.8 | 18.5 | 0.0 |
| Percentage of Assets | 1.3 | 3.5 | 0.4 | 0.8 | 0.0 |
| Percentage of Assets srt:ParentCompany | 6.2 | 14.2 | 1.5 | 3.1 | 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 | 2016-12-31 |
| Value | 591 | 563 | 560 | 505 | 516 | 572 | 585 | 629 | 699 | 660 | 607 | 571 | 562 | 581 | 556 | 531 |
| 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 |
| Percentage of Assets | 3.8 | 3.6 | 3.7 | 3.5 | 3.5 | 3.8 | 3.9 | 4.6 | 5.0 | 4.8 | 4.5 | 4.1 | 4.0 | 4.2 | 4.1 | 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 | 2016-12-31 |
| Value | 527 | 471 | 434 | 225 | 219 | 226 | 227 | 232 | 257 | 260 | 333 | 261 | 273 | 245 | 222 | 252 |
| Percentage of OtherAssetsCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 3.4 | 3.0 | 2.9 | 1.5 | 1.5 | 1.5 | 1.5 | 1.7 | 1.8 | 1.9 | 2.5 | 1.9 | 1.9 | 1.8 | 1.6 | 1.8 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 3.4 | 0.8 | 2.4 | 0.0 |
| Percentage of OtherAssetsCurrent | 0.8 | 0.4 | 0.7 | 0.0 |
| Percentage of Assets | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of Assets srt:ParentCompany | 0.1 | 0.0 | 0.1 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 4911 | 4301 | 11098 | 11724 | 12056 |
| Percentage of NoncurrentAssets | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 32.2 | 28.8 | 82.5 | 86.1 | 85.2 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 354 | 391 |
| Percentage of NoncurrentAssets | 7.2 | 9.1 |
| Percentage of Assets | 2.3 | 2.6 |
| Percentage of Assets srt:ReportableGeographicalComponents country:PA | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 1217 | 524 |
| Percentage of NoncurrentAssets | 24.8 | 12.2 |
| Percentage of Assets | 8.0 | 3.5 |
| Percentage of Assets srt:ReportableGeographicalComponents country:PR | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 530 | 542 |
| Percentage of NoncurrentAssets | 10.8 | 12.6 |
| Percentage of Assets | 3.5 | 3.6 |
| Percentage of Assets srt:ReportableGeographicalComponents lila:OtherCaribbeanOperations | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 185 | 193 |
| Percentage of NoncurrentAssets | 3.8 | 4.5 |
| Percentage of Assets | 1.2 | 1.3 |
| Percentage of Assets country:BB | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 342 | 359 |
| Percentage of NoncurrentAssets | 7.0 | 8.4 |
| Percentage of Assets | 2.2 | 2.4 |
| Percentage of Assets country:BS | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 755 | 710 |
| Percentage of NoncurrentAssets | 15.4 | 16.5 |
| Percentage of Assets | 5.0 | 4.8 |
| Percentage of Assets country:CL | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 67 | 67 |
| Percentage of NoncurrentAssets | 1.4 | 1.6 |
| Percentage of Assets | 0.4 | 0.5 |
| Percentage of Assets country:CR | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 161 | 169 |
| Percentage of NoncurrentAssets | 3.3 | 3.9 |
| Percentage of Assets | 1.1 | 1.1 |
| Percentage of Assets country:CW | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 360 | 374 |
| Percentage of NoncurrentAssets | 7.3 | 8.7 |
| Percentage of Assets | 2.4 | 2.5 |
| Percentage of Assets country:JM | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 214 | 216 |
| Percentage of NoncurrentAssets | 4.4 | 5.0 |
| Percentage of Assets | 1.4 | 1.4 |
| Percentage of Assets country:TT | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 721 | 751 |
| Percentage of NoncurrentAssets | 14.7 | 17.5 |
| Percentage of Assets | 4.7 | 5.0 |
| Percentage of Assets lila:NetworksandLatinAmerica | 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 |
| Value | 9292 | 9092 | 8739 | 7857 | 7632 | 7424 | 7594 | 7473 | 7597 | 7470 | 7119 | 6984 | 6858 | 6824 | 6567 | 5682 |
| Percentage of PropertyPlantAndEquipmentGross | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 60.0 | 58.5 | 57.4 | 53.8 | 51.7 | 48.9 | 50.8 | 55.2 | 54.6 | 54.8 | 52.9 | 50.1 | 48.9 | 49.8 | 48.2 | 40.2 |
| 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 | 2016-12-31 |
| Value | 2020 | 1961 | 1935 | 1864 | 1774 | 1727 | 1763 | 1746 | 1790 | 1734 | 1606 | 1551 | 1414 | 1438 | 1382 | 1205 |
| Percentage of PropertyPlantAndEquipmentGross | 21.7 | 21.6 | 22.1 | 23.7 | 23.3 | 23.3 | 23.2 | 23.4 | 23.6 | 23.2 | 22.6 | 22.2 | 20.6 | 21.1 | 21.1 | 21.2 |
| Percentage of Assets | 13.0 | 12.6 | 12.7 | 12.8 | 12.0 | 11.4 | 11.8 | 12.9 | 12.9 | 12.7 | 11.9 | 11.1 | 10.1 | 10.5 | 10.2 | 8.5 |
| Percentage of Assets lila:CustomerPremisesEquipment | 0.0 | 0.0 | 0.0 | 0.0 | 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 |
| Value | 5481 | 5348 | 5082 | 4420 | 4322 | 4205 | 4299 | 4244 | 4345 | 4292 | 4115 | 4064 | 4082 | 4047 | 3878 | 3522 |
| Percentage of PropertyPlantAndEquipmentGross | 59.0 | 58.8 | 58.2 | 56.3 | 56.6 | 56.6 | 56.6 | 56.8 | 57.2 | 57.5 | 57.8 | 58.2 | 59.5 | 59.3 | 59.1 | 62.0 |
| Percentage of Assets | 35.4 | 34.4 | 33.4 | 30.3 | 29.3 | 27.7 | 28.8 | 31.3 | 31.2 | 31.5 | 30.6 | 29.1 | 29.1 | 29.5 | 28.5 | 24.9 |
| Percentage of Assets lila:DistributionSystems | 0.0 | 0.0 | 0.0 | 0.0 | 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 |
| Value | 1790 | 1782 | 1721 | 1573 | 1535 | 1492 | 1530 | 1482 | 1461 | 1443 | 1398 | 1368 | 1360 | 1338 | 1306 | 954 |
| Percentage of PropertyPlantAndEquipmentGross | 19.3 | 19.6 | 19.7 | 20.0 | 20.1 | 20.1 | 20.2 | 19.8 | 19.2 | 19.3 | 19.6 | 19.6 | 19.8 | 19.6 | 19.9 | 16.8 |
| Percentage of Assets | 11.6 | 11.5 | 11.3 | 10.8 | 10.4 | 9.8 | 10.2 | 11.0 | 10.5 | 10.6 | 10.4 | 9.8 | 9.7 | 9.8 | 9.6 | 6.8 |
| Percentage of Assets lila:SupportEquipmentBuildingsAndLand | 0.0 | 0.0 | 0.0 | 0.0 | 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 |
| Value | 4419 | 4201 | 3828 | 3707 | 3477 | 3261 | 3293 | 3191 | 3235 | 3089 | 2882 | 2801 | 2647 | 2588 | 2398 | 1821 |
| 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 |
| Percentage of Assets | 28.5 | 27.0 | 25.1 | 25.4 | 23.5 | 21.5 | 22.0 | 23.6 | 23.3 | 22.6 | 21.4 | 20.1 | 18.9 | 18.9 | 17.6 | 12.9 |
| 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 | 2016-12-31 |
| Value | 4873 | 4891 | 4911 | 4149 | 4155 | 4163 | 4301 | 4282 | 4361 | 4381 | 4236 | 4182 | 4210 | 4236 | 4169 | 3860 |
| Percentage of PropertyPlantAndEquipmentNet | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 31.4 | 31.5 | 32.2 | 28.4 | 28.1 | 27.4 | 28.8 | 31.6 | 31.4 | 32.1 | 31.5 | 30.0 | 30.0 | 30.9 | 30.6 | 27.3 |
| 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 | 2016-12-31 | 2015-12-31 |
| Value | 4775 | 4814 | 4885 | 4503 | 4502 | 4808 | 4906 | 4973 | 5182 | 5225 | 5133 | 5544 | 5602 | 5663 | 5673 | 6353 | 775 |
| 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 |
| Percentage of Assets | 30.8 | 31.0 | 32.1 | 30.9 | 30.5 | 31.6 | 32.8 | 36.7 | 37.3 | 38.3 | 38.2 | 39.7 | 39.9 | 41.3 | 41.7 | 44.9 | 0.0 |
| Period End | 2020-10-31 |
| Value | 352 |
| Percentage of Goodwill | 0.0 |
| Percentage of Assets | 0.0 |
| Percentage of Assets lila:ATTAcquisition | 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 |
| Value | 3048 | 3078 | 3112 | 3732 | 3739 | 4057 | 4110 | 4168 | 4359 | 4406 | 4325 | 4861 | 4917 | 4944 | 4962 |
| Percentage of Goodwill | 63.8 | 63.9 | 63.7 | 82.9 | 83.1 | 84.4 | 83.8 | 83.8 | 84.1 | 84.3 | 84.3 | 87.7 | 87.8 | 87.3 | 87.5 |
| Percentage of Assets | 19.7 | 19.8 | 20.4 | 25.6 | 25.3 | 26.7 | 27.5 | 30.8 | 31.3 | 32.3 | 32.2 | 34.8 | 35.0 | 36.1 | 36.4 |
| Percentage of Assets lila:CableWirelessCommunicationsLimitedCW | 0.0 | 0.0 | 0.0 | 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 |
| Value | 3112 | 3316 | 3349 |
| Percentage of Goodwill | 63.7 | 67.6 | 65.3 |
| Percentage of Assets | 20.4 | 22.2 | 24.9 |
| Percentage of Assets lila:CableWirelessCommunicationsLimitedCWCaribbeanAndNetworks | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2019-12-31 | 2018-12-31 |
| Value | 617 | 617 | 617 | 794 | 976 |
| Percentage of Goodwill | 12.9 | 12.8 | 12.6 | 16.2 | 19.0 |
| Percentage of Assets | 4.0 | 4.0 | 4.1 | 5.3 | 7.3 |
| Percentage of Assets lila:CableWirelessCommunicationsLimitedCWPanama | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 |
| Value | 150 | 152 | 151 |
| Percentage of Goodwill | 3.1 | 3.2 | 3.1 |
| Percentage of Assets | 1.0 | 1.0 | 1.0 |
| Percentage of Assets lila:Cabletica | 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 |
| Value | 595 | 595 | 629 | 277 | 277 | 277 | 277 | 277 | 277 | 277 | 277 | 277 | 277 | 277 | 277 |
| Percentage of Goodwill | 12.5 | 12.4 | 12.9 | 6.2 | 6.2 | 5.8 | 5.7 | 5.6 | 5.4 | 5.3 | 5.4 | 5.0 | 5.0 | 4.9 | 4.9 |
| Percentage of Assets | 3.8 | 3.8 | 4.1 | 1.9 | 1.9 | 1.8 | 1.9 | 2.1 | 2.0 | 2.0 | 2.1 | 2.0 | 2.0 | 2.0 | 2.0 |
| Percentage of Assets lila:LibertyCablevisionofPuertoRicoLLCLibertyPuertoRico | 0.0 | 0.0 | 0.0 | 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 |
| Value | 364 | 371 | 374 |
| Percentage of Goodwill | 7.6 | 7.7 | 7.7 |
| Percentage of Assets | 2.3 | 2.4 | 2.5 |
| Percentage of Assets lila:VTR | 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 | 2017-12-31 |
| Value | 526 | 493 | 484 | 472 | 517 | 526 | 545 | 541 | 530 | 433 |
| Percentage of Goodwill | 10.8 | 11.0 | 10.8 | 9.8 | 10.6 | 10.6 | 10.5 | 10.4 | 10.3 | 7.6 |
| Percentage of Assets | 3.5 | 3.4 | 3.3 | 3.1 | 3.5 | 3.9 | 3.9 | 4.0 | 3.9 | 3.2 |
| Percentage of Assets lila:VTRCabletica | 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 |
| Value | 1465 | 1465 | 1465 | 561 | 559 | 558 | 560 | 561 | 563 | 563 | 562 | 563 | 563 | 565 | 565 | 607 |
| 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 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 9.5 | 9.4 | 9.6 | 3.8 | 3.8 | 3.7 | 3.8 | 4.1 | 4.0 | 4.1 | 4.2 | 4.0 | 4.0 | 4.1 | 4.2 | 4.3 |
| Period End | 2020-10-31 |
| Value | 894 |
| Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill | 0.0 |
| Percentage of Assets | 0.0 |
| Percentage of Assets lila:ATTAcquisition | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 909 | 8.4 |
| Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill | 62.1 | 1.5 |
| Percentage of Assets | 6.0 | 0.1 |
| Percentage of Assets lila:SpectrumLicenses | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 15 | 12 |
| Percentage of IndefiniteLivedIntangibleAssetsExcludingGoodwill | 1.1 | 2.2 |
| Percentage of Assets | 0.1 | 0.1 |
| Percentage of Assets us-gaap:OtherIntangibleAssets | 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 |
| Value | 755 | 805 | 858 | 825 | 876 | 920 | 969 | 986 | 1068 | 1120 | 1165 | 1145 | 1199 | 1251 | 1316 | 1234 |
| 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 |
| Percentage of Assets | 4.9 | 5.2 | 5.6 | 5.7 | 5.9 | 6.1 | 6.5 | 7.3 | 7.7 | 8.2 | 8.7 | 8.2 | 8.5 | 9.1 | 9.7 | 8.7 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2019-12-31 |
| Value | 299 | 305 | 328 | 143 | 150 |
| Percentage of OperatingLeaseRightOfUseAsset | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 1.9 | 2.0 | 2.2 | 1.0 | 1.0 |
| 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 |
| Value | 1108 | 1164 | 1139 | 782 | 769 | 1016 | 872 | 806 | 752 | 804 | 703 | 812 | 822 | 579 | 517 | 578 |
| 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 |
| Percentage of Assets | 7.2 | 7.5 | 7.5 | 5.4 | 5.2 | 6.7 | 5.8 | 6.0 | 5.4 | 5.9 | 5.2 | 5.8 | 5.9 | 4.2 | 3.8 | 4.1 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 0.2 | 0.2 | 5.2 | 0.3 |
| Percentage of OtherAssetsNoncurrent | 0.0 | 0.0 | 0.7 | 0.1 |
| Percentage of Assets | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of Assets srt:ParentCompany | 0.0 | 0.0 | 0.2 | 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 |
| Value | 366 | 364 | 351 | 269 | 270 | 272 | 346 | 295 | 352 | 321 | 297 | 276 | 275 | 276 | 286 | 219 |
| Percentage of AccountsPayableCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 2.3 | 1.8 | 1.8 | 1.8 | 2.3 | 2.2 | 2.5 | 2.4 | 2.2 | 2.0 | 2.0 | 2.0 | 2.1 | 1.6 |
| 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 | 2018-01-01 | 2017-12-31 |
| Value | 166 | 168 | 184 | 138 | 136 | 137 | 160 | 163 | 169 | 168 | 161 | 165 | 159 | 156 | 143 |
| 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 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 1.1 | 1.1 | 1.2 | 0.9 | 0.9 | 0.9 | 1.1 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.1 | 0.0 | 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 | 2016-12-31 |
| Value | 1690 | 1666 | 1705 | 1585 | 1517 | 1548 | 1576 | 1523 | 1625 | 1751 | 1608 | 1792 | 1786 | 1595 | 1586 | 1348 |
| 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 |
| Percentage of Assets | 10.9 | 10.7 | 11.2 | 10.9 | 10.3 | 10.2 | 10.6 | 11.2 | 11.7 | 12.8 | 12.0 | 12.8 | 12.7 | 11.6 | 11.7 | 9.5 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 |
| Value | 67 | 267 | 119 |
| Percentage of LiabilitiesCurrent | 3.9 | 16.9 | 7.4 |
| Percentage of Assets | 0.4 | 1.8 | 0.9 |
| Percentage of Assets srt:ParentCompany | 2.2 | 7.2 | 3.7 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2018-06-30 | 2018-03-31 | 2017-12-31 |
| Value | 160 | 178 | 293 | 384 | 200 | 256 |
| Percentage of LongTermDebtCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 1.1 | 1.2 | 2.2 | 2.7 | 1.5 | 1.9 |
| 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 |
| Value | 67 | 63 | 59 | 193 | 101 | 200 | 84 | 83 | 64 | 254 | 192 | 269 | 281 | 98 | 159 |
| Percentage of LongTermDebtCurrent | 0.0 | 0.0 | 37.4 | 0.0 | 0.0 | 0.0 | 47.3 | 0.0 | 0.0 | 0.0 | 65.7 | 0.0 | 73.2 | 49.3 | 62.1 |
| Percentage of Assets | 0.4 | 0.4 | 0.4 | 1.3 | 0.7 | 1.3 | 0.6 | 0.6 | 0.5 | 1.9 | 1.4 | 1.9 | 2.0 | 0.7 | 1.2 |
| Percentage of Assets lila:CableWirelessCommunicationsLimitedCW | 0.0 | 0.0 | 0.0 | 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 |
| Value | 163 | 161 | 283 | 185 | 279 | 178 | 164 | 356 | 371 |
| Percentage of LongTermDebtCurrent | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of Assets | 1.1 | 1.0 | 1.9 | 1.3 | 1.8 | 1.3 | 1.2 | 2.6 | 2.7 |
| Percentage of Assets lila:Consolidated | 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 |
| Value | 0.4 | 0.4 | 0.5 | 0.2 | 0.3 | 0.3 | 0.3 | 0.0 | 0.0 |
| Percentage of LongTermDebtCurrent | 0.0 | 0.0 | 0.3 | 0.0 | 0.0 | 0.0 | 0.2 | 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 |
| Percentage of Assets lila:LibertyLatinAmerica | 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 |
| Value | 95 | 97 | 99 | 89 | 83 | 79 | 93 | 95 |
| Percentage of LongTermDebtCurrent | 0.0 | 0.0 | 62.2 | 0.0 | 0.0 | 0.0 | 52.5 | 0.0 |
| Percentage of Assets | 0.6 | 0.6 | 0.7 | 0.6 | 0.6 | 0.5 | 0.6 | 0.7 |
| Percentage of Assets lila:VTRFinanceB.V.VTRFinance | 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 | 2019-12-31 |
| Value | 56 | 60 | 63 | 31 | 31 |
| Percentage of OperatingLeaseLiabilityCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.4 | 0.4 | 0.4 | 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 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2016-12-31 |
| Value | 634 | 648 | 612 | 645 | 663 | 615 | 594 | 638 | 753 | 733 | 623 | 753 | 696 | 691 | 508 | 567 |
| 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 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 4.1 | 4.2 | 4.0 | 4.4 | 4.5 | 4.1 | 4.0 | 4.7 | 5.4 | 5.4 | 4.6 | 5.4 | 5.0 | 5.0 | 3.7 | 4.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 11 | 5.2 | 2.1 | 0.0 |
| Percentage of OtherAccruedLiabilitiesCurrent | 1.9 | 0.9 | 0.3 | 0.0 |
| Percentage of Assets | 0.1 | 0.0 | 0.0 | 0.0 |
| Percentage of Assets srt:ParentCompany | 0.4 | 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 | 2016-12-31 |
| Value | 8781 | 8769 | 8343 | 8458 | 8838 | 8827 | 8366 | 7083 | 7022 | 6736 | 6669 | 6614 | 6638 | 6402 | 6354 | 6026 |
| Percentage of LongTermDebt | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 56.7 | 56.4 | 54.8 | 57.9 | 59.8 | 58.1 | 56.0 | 52.3 | 50.5 | 49.4 | 49.6 | 47.4 | 47.3 | 46.7 | 46.7 | 42.6 |
| Period End | 2020-12-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2018-12-31 |
| Value | 494 | 493 | 493 | 493 | 493 |
| Percentage of LongTermDebt | 5.9 | 5.9 | 7.0 | 7.0 | 7.4 |
| Percentage of Assets | 3.2 | 3.3 | 3.6 | 3.5 | 3.7 |
| Percentage of Assets lila:A2026CWSeniorNotes us-gaap:SeniorNotes | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-09-30 | 2019-06-30 |
| Value | 548 | 391 | 391 |
| Percentage of LongTermDebt | 6.6 | 5.5 | 5.6 |
| Percentage of Assets | 3.6 | 2.9 | 2.8 |
| Percentage of Assets lila:A2027CWSeniorSecuredNotes us-gaap:SeniorNotes | 0.0 | 0.0 | 0.0 |
| Period End | 2020-09-30 |
| Value | 533 |
| Percentage of LongTermDebt | 6.3 |
| Percentage of Assets | 3.7 |
| Percentage of Assets lila:A2028VTRFinanceSeniorNotes us-gaap:SeniorNotes | 0.0 |
| Period End | 2020-12-31 |
| Value | 533 |
| Percentage of LongTermDebt | 6.4 |
| Percentage of Assets | 3.5 |
| Percentage of Assets lila:A2028VTRSeniorNotes us-gaap:SeniorNotes | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 |
| Value | 596 | 596 |
| Percentage of LongTermDebt | 7.2 | 7.1 |
| Percentage of Assets | 3.9 | 4.1 |
| Percentage of Assets lila:A2028VTRSeniorSecuredNotes us-gaap:SeniorNotes | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2018-12-31 | 2017-12-31 |
| Value | 2260 | 2102 | 2101 | 2088 | 1782 | 1668 |
| Percentage of LongTermDebt | 27.1 | 25.1 | 29.7 | 29.7 | 26.7 | 26.3 |
| Percentage of Assets | 14.8 | 14.1 | 15.5 | 15.0 | 13.3 | 12.3 |
| Percentage of Assets lila:CWNotes us-gaap:SeniorNotes | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2018-12-31 | 2017-12-31 |
| Value | 1217 | 1216 | 1216 | 990 | 694 | 694 |
| Percentage of LongTermDebt | 14.6 | 14.5 | 17.2 | 14.1 | 10.4 | 10.9 |
| Percentage of Assets | 8.0 | 8.1 | 9.0 | 7.1 | 5.2 | 5.1 |
| Percentage of Assets lila:CWSeniorNotesDue2027 us-gaap:SeniorNotes | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 |
| Value | 241 | 227 | 244 | 258 | 265 |
| Percentage of LongTermDebt | 2.9 | 2.7 | 3.7 | 3.9 | 4.0 |
| Percentage of Assets | 1.6 | 1.5 | 1.8 | 1.9 | 1.9 |
| Percentage of Assets lila:VTRCreditFacilities us-gaap:LineOfCredit | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 |
| Value | 195 | 184 | 197 | 209 | 215 |
| Percentage of LongTermDebt | 2.3 | 2.2 | 3.0 | 3.2 | 3.2 |
| Percentage of Assets | 1.3 | 1.2 | 1.5 | 1.5 | 1.5 |
| Percentage of Assets lila:VTRTLB1Facility us-gaap:MediumTermNotes | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 |
| Value | 45 | 43 | 46 | 49 | 50 |
| Percentage of LongTermDebt | 0.6 | 0.5 | 0.7 | 0.7 | 0.8 |
| Percentage of Assets | 0.3 | 0.3 | 0.3 | 0.4 | 0.4 |
| Percentage of Assets lila:VTRTLB2Facility us-gaap:MediumTermNotes | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 |
| Value | 1130 | 1130 |
| Percentage of LongTermDebt | 13.5 | 13.4 |
| Percentage of Assets | 7.4 | 7.7 |
| Percentage of Assets us-gaap:SeniorNotes | 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 |
| Value | 4168 | 4165 | 4164 | 4293 | 4514 | 4517 | 4174 | 4148 | 4068 | 4083 | 4026 | 3905 | 3917 | 3950 | 3907 |
| Percentage of LongTermDebt | 47.5 | 47.5 | 49.9 | 50.8 | 51.1 | 51.2 | 49.9 | 58.6 | 57.9 | 60.6 | 60.4 | 59.0 | 59.0 | 61.7 | 61.5 |
| Percentage of Assets | 26.9 | 26.8 | 27.3 | 29.4 | 30.6 | 29.7 | 27.9 | 30.6 | 29.3 | 29.9 | 29.9 | 28.0 | 27.9 | 28.8 | 28.7 |
| Percentage of Assets lila:CableWirelessCommunicationsLimitedCW | 0.0 | 0.0 | 0.0 | 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 |
| Value | 120 | 113 | 113 | 117 | 120 | 121 | 122 | 120 | 124 | 121 | 120 |
| Percentage of LongTermDebt | 1.4 | 1.3 | 1.4 | 1.4 | 1.4 | 1.4 | 1.5 | 1.7 | 1.8 | 1.8 | 1.8 |
| Percentage of Assets | 0.8 | 0.7 | 0.7 | 0.8 | 0.8 | 0.8 | 0.8 | 0.9 | 0.9 | 0.9 | 0.9 |
| Percentage of Assets lila:Cabletica | 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 |
| Value | 8781 | 8769 | 8458 | 8838 | 8827 | 7083 | 7022 | 6736 | 6614 |
| Percentage of LongTermDebt | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 56.7 | 56.4 | 57.9 | 59.8 | 58.1 | 52.3 | 50.5 | 49.4 | 47.4 |
| Percentage of Assets lila:Consolidated | 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 |
| Value | 2570 | 2570 | 2250 | 2268 | 2329 | 2236 | 2173 | 915 | 915 | 934 | 933 | 973 | 972 | 971 | 971 |
| Percentage of LongTermDebt | 29.3 | 29.3 | 27.0 | 26.8 | 26.4 | 25.3 | 26.0 | 12.9 | 13.0 | 13.9 | 14.0 | 14.7 | 14.6 | 15.2 | 15.3 |
| Percentage of Assets | 16.6 | 16.5 | 14.8 | 15.5 | 15.8 | 14.7 | 14.5 | 6.8 | 6.6 | 6.8 | 6.9 | 7.0 | 6.9 | 7.1 | 7.1 |
| Percentage of Assets lila:LibertyCablevisionofPuertoRicoLLCLibertyPuertoRico | 0.0 | 0.0 | 0.0 | 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 |
| Value | 351 | 348 | 344 | 340 | 337 | 333 | 330 | 323 | 320 |
| Percentage of LongTermDebt | 4.0 | 4.0 | 4.1 | 4.0 | 3.8 | 3.8 | 3.9 | 4.6 | 4.6 |
| Percentage of Assets | 2.3 | 2.2 | 2.3 | 2.3 | 2.3 | 2.2 | 2.2 | 2.4 | 2.3 |
| Percentage of Assets lila:LibertyLatinAmerica | 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 |
| Value | 1569 | 1573 | 1471 | 1438 | 1537 | 1618 | 1566 | 1574 |
| Percentage of LongTermDebt | 17.9 | 17.9 | 17.6 | 17.0 | 17.4 | 18.3 | 18.7 | 22.2 |
| Percentage of Assets | 10.1 | 10.1 | 9.7 | 9.9 | 10.4 | 10.6 | 10.5 | 11.6 |
| Percentage of Assets lila:VTRFinanceB.V.VTRFinance | 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 | 2018-06-30 | 2018-03-31 | 2017-12-31 |
| Value | 8183 | 8188 | 6375 | 6253 | 6202 | 6097 |
| Percentage of LongTermDebtNoncurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 53.7 | 54.8 | 47.4 | 44.6 | 45.3 | 44.8 |
| 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 |
| Value | 4101 | 4101 | 4104 | 4099 | 4412 | 4317 | 4090 | 4065 | 4003 | 3829 | 3834 | 3636 | 3635 | 3852 | 3747 |
| Percentage of LongTermDebtNoncurrent | 0.0 | 0.0 | 50.2 | 0.0 | 0.0 | 0.0 | 50.0 | 0.0 | 0.0 | 0.0 | 60.1 | 0.0 | 58.1 | 62.1 | 61.5 |
| Percentage of Assets | 26.5 | 26.4 | 26.9 | 28.1 | 29.9 | 28.4 | 27.4 | 30.0 | 28.8 | 28.1 | 28.5 | 26.1 | 25.9 | 28.1 | 27.5 |
| Percentage of Assets lila:CableWirelessCommunicationsLimitedCW | 0.0 | 0.0 | 0.0 | 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 |
| Value | 120 | 113 | 113 | 117 | 120 | 121 | 122 | 120 | 124 | 121 | 120 |
| Percentage of LongTermDebtNoncurrent | 0.0 | 0.0 | 1.4 | 0.0 | 0.0 | 0.0 | 1.5 | 0.0 | 0.0 | 0.0 | 1.9 |
| Percentage of Assets | 0.8 | 0.7 | 0.7 | 0.8 | 0.8 | 0.8 | 0.8 | 0.9 | 0.9 | 0.9 | 0.9 |
| Percentage of Assets lila:Cabletica | 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 |
| Value | 8618 | 8608 | 8174 | 8653 | 8547 | 6904 | 6858 | 6379 | 6243 |
| Percentage of LongTermDebtNoncurrent | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of Assets | 55.6 | 55.4 | 56.0 | 58.6 | 56.2 | 51.0 | 49.3 | 46.8 | 44.8 |
| Percentage of Assets lila:Consolidated | 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 |
| Value | 2570 | 2570 | 2250 | 2268 | 2329 | 2236 | 2173 | 915 | 915 | 934 | 933 | 973 | 972 | 971 | 971 |
| Percentage of LongTermDebtNoncurrent | 0.0 | 0.0 | 27.5 | 0.0 | 0.0 | 0.0 | 26.5 | 0.0 | 0.0 | 0.0 | 14.6 | 0.0 | 15.5 | 15.7 | 15.9 |
| Percentage of Assets | 16.6 | 16.5 | 14.8 | 15.5 | 15.8 | 14.7 | 14.5 | 6.8 | 6.6 | 6.8 | 6.9 | 7.0 | 6.9 | 7.1 | 7.1 |
| Percentage of Assets lila:LibertyCablevisionofPuertoRicoLLCLibertyPuertoRico | 0.0 | 0.0 | 0.0 | 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 |
| Value | 351 | 347 | 343 | 340 | 336 | 333 | 329 | 323 | 320 |
| Percentage of LongTermDebtNoncurrent | 0.0 | 0.0 | 4.2 | 0.0 | 0.0 | 0.0 | 4.0 | 0.0 | 0.0 |
| Percentage of Assets | 2.3 | 2.2 | 2.3 | 2.3 | 2.3 | 2.2 | 2.2 | 2.4 | 2.3 |
| Percentage of Assets lila:LibertyLatinAmerica | 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 |
| Value | 1473 | 1475 | 1371 | 1349 | 1454 | 1539 | 1473 | 1479 |
| Percentage of LongTermDebtNoncurrent | 0.0 | 0.0 | 16.8 | 0.0 | 0.0 | 0.0 | 18.0 | 0.0 |
| Percentage of Assets | 9.5 | 9.5 | 9.0 | 9.2 | 9.8 | 10.1 | 9.9 | 10.9 |
| Percentage of Assets lila:VTRFinanceB.V.VTRFinance | 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 |
| Value | 8629 | 8620 | 8195 | 8175 | 8654 | 8548 | 8189 | 6906 | 6860 | 6382 | 6379 | 6248 | 6257 | 6207 | 6108 | 5897 |
| Percentage of LongTermDebtAndCapitalLeaseObligations | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 55.7 | 55.4 | 53.8 | 56.0 | 58.6 | 56.2 | 54.8 | 51.0 | 49.3 | 46.8 | 47.4 | 44.8 | 44.6 | 45.3 | 44.9 | 41.7 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 |
| Value | 342 | 327 | 0.0 |
| Percentage of LongTermDebtAndCapitalLeaseObligations | 4.2 | 4.0 | 0.0 |
| Percentage of Assets | 2.2 | 2.2 | 0.0 |
| Percentage of Assets srt:ParentCompany | 10.9 | 8.8 | 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 |
| Value | 638 | 627 | 619 | 361 | 404 | 390 | 401 | 389 | 440 | 473 | 543 | 570 | 567 | 516 | 533 | 637 |
| 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 |
| Percentage of Assets | 4.1 | 4.0 | 4.1 | 2.5 | 2.7 | 2.6 | 2.7 | 2.9 | 3.2 | 3.5 | 4.0 | 4.1 | 4.0 | 3.8 | 3.9 | 4.5 |
| 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 | 2016-12-31 |
| Value | 725 | 730 | 729 | 751 | 758 | 866 | 870 | 907 | 1024 | 1023 | 1010 | 1358 | 1351 | 1350 | 1361 | 1480 |
| 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 |
| Percentage of Assets | 4.7 | 4.7 | 4.8 | 5.1 | 5.1 | 5.7 | 5.8 | 6.7 | 7.4 | 7.5 | 7.5 | 9.7 | 9.6 | 9.9 | 10.0 | 10.5 |
| 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 | 2016-12-31 |
| Value | 835 | 926 | 1080 | 761 | 725 | 695 | 579 | 581 | 750 | 687 | 791 | 855 | 858 | 783 | 697 | 600 |
| 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 |
| Percentage of Assets | 5.4 | 6.0 | 7.1 | 5.2 | 4.9 | 4.6 | 3.9 | 4.3 | 5.4 | 5.0 | 5.9 | 6.1 | 6.1 | 5.7 | 5.1 | 4.2 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2019-12-31 |
| Value | 256 | 261 | 269 | 111 | 119 |
| Percentage of OperatingLeaseLiabilityNoncurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 1.7 | 1.7 | 1.8 | 0.8 | 0.8 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 54 | 53 | 62 | 29 |
| Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.4 | 0.3 | 0.4 | 0.2 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 46 | 45 | 51 | 23 |
| Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.3 | 0.3 | 0.3 | 0.2 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 36 | 34 | 44 | 19 |
| Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.2 | 0.2 | 0.3 | 0.1 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 31 | 30 | 34 | 13 |
| Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.2 | 0.2 | 0.2 | 0.1 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 107 | 105 | 136 | 43 |
| Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.7 | 0.7 | 0.9 | 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 |
| Value | 312 | 322 | 332 | 143 | 150 | 153 | 150 |
| Percentage of OperatingLeaseLiability | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 2.0 | 2.1 | 2.2 | 1.0 | 1.0 | 1.0 | 1.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 379 | 392 | 408 | 176 |
| Percentage of LesseeOperatingLeaseLiabilityPaymentsDue | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 2.4 | 2.5 | 2.7 | 1.2 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 67 | 70 | 75 | 33 |
| Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.4 | 0.5 | 0.5 | 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 | 2016-12-31 |
| Value | 2810 | 2805 | 2714 | 2776 | 2521 | 2943 | 3109 | 3024 | 2979 | 3095 | 3112 | 3126 | 3209 | 3246 | 3329 | 4179 |
| 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 |
| Percentage of Assets | 18.1 | 18.0 | 17.8 | 19.0 | 17.1 | 19.4 | 20.8 | 22.3 | 21.4 | 22.7 | 23.1 | 22.4 | 22.9 | 23.7 | 24.5 | 29.6 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 2714 | 3109 | 3112 | 3329 |
| Percentage of StockholdersEquity | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 17.8 | 20.8 | 23.1 | 24.5 |
| Percentage of Assets srt:ParentCompany | 86.9 | 84.0 | 96.3 | 96.9 |
| 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 | 2016-12-31 | 2015-12-31 | 2014-12-31 |
| Value | 3536 | 3536 | 3443 | 3527 | 3279 | 3809 | 3979 | 3931 | 4003 | 4118 | 4123 | 4485 | 4561 | 4596 | 4690 | 5660 | 270 | 69 |
| 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 |
| Percentage of Assets | 22.8 | 22.7 | 22.6 | 24.2 | 22.2 | 25.1 | 26.6 | 29.0 | 28.8 | 30.2 | 30.7 | 32.1 | 32.5 | 33.6 | 34.4 | 40.0 | 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 |
| Value | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.0 | 0.0 |
| 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 us-gaap:CommonClassA 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 |
| Value | 1.8 | 1.8 | 1.8 | 1.8 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.2 | 1.2 | 1.2 | 1.2 | 0.0 | 0.0 |
| Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 0.1 | 0.1 | 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 |
| 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 us-gaap:CommonClassC 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 | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 |
| Value | 17 | 10 | 13 | -21.8 | -11.5 | 1.5 | 0.0 |
| Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 0.5 | 0.3 | 0.3 | -0.5 | -0.2 | 0.6 | 0.0 |
| Percentage of Assets | 0.1 | 0.1 | 0.1 | -0.2 | -0.1 | 0.0 | 0.0 |
| Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment | 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 |
| Value | -162.3 | -150.0 | -125.6 | -83.2 | -56.0 | -21.0 | -14.8 | -51.3 | -47.2 | -6.6 | -16.3 | -154.4 | -87.8 | -86.2 | -64.2 | -16.7 | 54 | 19 |
| Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | -4.6 | -4.2 | -3.6 | -2.4 | -1.7 | -0.6 | -0.4 | -1.3 | -1.2 | -0.2 | -0.4 | -3.4 | -1.9 | -1.9 | -1.4 | -0.3 | 20.1 | 27.6 |
| Percentage of Assets | -1.0 | -1.0 | -0.8 | -0.6 | -0.4 | -0.1 | -0.1 | -0.4 | -0.3 | -0.0 | -0.1 | -1.1 | -0.6 | -0.6 | -0.5 | -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 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 |
| Value | -143.2 | -25.5 | -29.8 | -42.4 | -5.2 | 52 | 19 |
| Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | -4.2 | -0.6 | -0.7 | -0.9 | -0.1 | 19.5 | 27.6 |
| Percentage of Assets | -0.9 | -0.2 | -0.2 | -0.3 | -0.0 | 0.0 | 0.0 |
| Percentage of Assets us-gaap:AccumulatedTranslationAdjustment | 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 |
| Value | 5032 | 5009 | 4982 | 4972 | 4606 | 4592 | 4569 | 4563 | 4549 | 4508 | 4494 | 4413 | 4404 | 4397 | 4402 | 0.0 | 0.0 | 0.0 |
| Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 142.3 | 141.7 | 144.7 | 141.0 | 140.4 | 120.5 | 114.8 | 116.1 | 113.6 | 109.5 | 109.0 | 98.4 | 96.6 | 95.7 | 93.9 | 0.0 | 0.0 | 0.0 |
| Percentage of Assets | 32.5 | 32.2 | 32.7 | 34.1 | 31.2 | 30.2 | 30.6 | 33.7 | 32.7 | 33.0 | 33.4 | 31.6 | 31.4 | 32.1 | 32.3 | 0.0 | 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 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 |
| Value | -9.6 | -8.8 | -8.5 | 0.0 | -0.9 | 0.0 | 0.0 |
| Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | -0.3 | -0.2 | -0.2 | 0.0 | -0.0 | 0.0 | 0.0 |
| Percentage of Assets | -0.1 | -0.1 | -0.1 | 0.0 | -0.0 | 0.0 | 0.0 |
| Percentage of Assets us-gaap:AociAttributableToNoncontrollingInterest | 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 |
| Value | -135.2 | -23.6 | -24.8 | -64.2 | -17.6 | 54 | 19 |
| Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | -3.9 | -0.6 | -0.6 | -1.4 | -0.3 | 20.1 | 27.6 |
| Percentage of Assets | -0.9 | -0.2 | -0.2 | -0.5 | -0.1 | 0.0 | 0.0 |
| Percentage of Assets us-gaap:AociIncludingPortionAttributableToNoncontrollingInterest | 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 |
| Value | 725 | 730 | 729 | 751 | 758 | 866 | 870 | 907 | 1024 | 1023 | 1010 | 1358 | 1351 | 1350 | 1361 | 1480 | 63 | 48 |
| Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 20.5 | 20.7 | 21.2 | 21.3 | 23.1 | 22.7 | 21.9 | 23.1 | 25.6 | 24.8 | 24.5 | 30.3 | 29.6 | 29.4 | 29.0 | 26.2 | 23.4 | 70.8 |
| Percentage of Assets | 4.7 | 4.7 | 4.8 | 5.1 | 5.1 | 5.7 | 5.8 | 6.7 | 7.4 | 7.5 | 7.5 | 9.7 | 9.6 | 9.9 | 10.0 | 10.5 | 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 |
| 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 |
| Value | 2810 | 2805 | 2714 | 2776 | 2521 | 2943 | 3109 | 3024 | 2979 | 3095 | 3112 | 3126 | 3209 | 3246 | 3329 | 4179 | 207 | 20 |
| Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 79.5 | 79.3 | 78.8 | 78.7 | 76.9 | 77.3 | 78.1 | 76.9 | 74.4 | 75.2 | 75.5 | 69.7 | 70.4 | 70.6 | 71.0 | 73.8 | 76.6 | 29.2 |
| Percentage of Assets | 18.1 | 18.0 | 17.8 | 19.0 | 17.1 | 19.4 | 20.8 | 22.3 | 21.4 | 22.7 | 23.1 | 22.4 | 22.9 | 23.7 | 24.5 | 29.6 | 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 |
| 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 |
| Value | -2042.3 | -2046.7 | -2134.5 | -2105.6 | -2021.0 | -1628.0 | -1447.1 | -1489.4 | -1524.7 | -1408.7 | -1367.0 | -1134.0 | -1108.5 | -1066.3 | -1010.7 | -232.6 | 199 | 161 |
| Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | -57.8 | -57.9 | -62.0 | -59.7 | -61.6 | -42.7 | -36.4 | -37.9 | -38.1 | -34.2 | -33.2 | -25.3 | -24.3 | -23.2 | -21.5 | -4.1 | 73.7 | 234.0 |
| Percentage of Assets | -13.2 | -13.2 | -14.0 | -14.4 | -13.7 | -10.7 | -9.7 | -11.0 | -11.0 | -10.3 | -10.2 | -8.1 | -7.9 | -7.8 | -7.4 | -1.6 | 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 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-06-30 | 2019-03-31 | 2018-12-31 |
| Value | -19.5 | -9.5 | -9.5 | -9.5 | -9.5 | -1.7 | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | -0.6 | -0.3 | -0.3 | -0.3 | -0.3 | -0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of Assets | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 | -0.0 | 0.0 | 0.0 | 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 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 1800000.0 | 1300000.0 | 1300000.0 | 1200000.0 |
| Percentage of CommonStockValue | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of Assets srt:ParentCompany us-gaap:CommonClassC | 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 |
| Value | 1800000.0 | 1800000.0 | 1800000.0 | 1800000.0 | 1300000.0 | 1300000.0 | 1300000.0 | 1300000.0 | 1300000.0 | 1300000.0 | 1300000.0 | 1200000.0 | 1200000.0 | 1200000.0 | 1200000.0 |
| Percentage of CommonStockValue | 0.0 | 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 | 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 |
| Percentage of Assets us-gaap:CommonClassC | 0.0 | 0.0 | 0.0 | 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 |
| Value | 5032 | 5009 | 4982 | 4972 | 4606 | 4592 | 4569 | 4563 | 4549 | 4508 | 4494 | 4413 | 4404 | 4397 | 4402 |
| Percentage of AdditionalPaidInCapital | 100.0 | 100.0 | 100.0 | 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 | 32.5 | 32.2 | 32.7 | 34.1 | 31.2 | 30.2 | 30.6 | 33.7 | 32.7 | 33.0 | 33.4 | 31.6 | 31.4 | 32.1 | 32.3 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 4982 | 4569 | 4494 | 4402 |
| Percentage of AdditionalPaidInCapital | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | 32.7 | 30.6 | 33.4 | 32.3 |
| Percentage of Assets srt:ParentCompany | 159.5 | 123.4 | 139.0 | 128.2 |
| 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 | 2016-12-31 |
| Value | -2042300000.0 | -2046700000.0 | -2134500000.0 | -2105600000.0 | -2021000000.0 | -1628000000.0 | -1447100000.0 | -1489400000.0 | -1524700000.0 | -1408700000.0 | -1367000000.0 | -1134000000.0 | -1108500000.0 | -1066300000.0 | -1010700000.0 | -232600000.0 |
| 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 |
| Percentage of Assets | -13.2 | -13.2 | -14.0 | -14.4 | -13.7 | -10.7 | -9.7 | -11.0 | -11.0 | -10.3 | -10.2 | -8.1 | -7.9 | -7.8 | -7.4 | -1.6 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | -2134500000.0 | -1447100000.0 | -1367000000.0 | -1010700000.0 |
| Percentage of RetainedEarningsAccumulatedDeficit | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | -14.0 | -9.7 | -10.2 | -7.4 |
| Percentage of Assets srt:ParentCompany | -68.3 | -39.1 | -42.3 | -29.4 |
| 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 | 2016-12-31 |
| Value | -162300000.0 | -150000000.0 | -125600000.0 | -83200000.0 | -56000000.0 | -21000000.0 | -14800000.0 | -51300000.0 | -47200000.0 | -6600000.0 | -16300000.0 | -154400000.0 | -87800000.0 | -86200000.0 | -64200000.0 | -16700000.0 |
| 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 |
| Percentage of Assets | -1.0 | -1.0 | -0.8 | -0.6 | -0.4 | -0.1 | -0.1 | -0.4 | -0.3 | -0.0 | -0.1 | -1.1 | -0.6 | -0.6 | -0.5 | -0.1 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | -125600000.0 | -14800000.0 | -16300000.0 | -64200000.0 |
| Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of Assets | -0.8 | -0.1 | -0.1 | -0.5 |
| Percentage of Assets srt:ParentCompany | -4.0 | -0.4 | -0.5 | -1.9 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 |
| Value | 19 | 9.5 | 9.5 | 9.5 | 9.5 | 1.7 | 0.0 |
| Percentage of TreasuryStockValue | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 |
| Percentage of Assets | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 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 |
| Value | 725 | 730 | 729 | 751 | 758 | 866 | 870 | 907 | 1024 | 1023 | 1010 | 1358 | 1351 | 1350 | 1361 | 1480 |
| 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 |
| Percentage of Assets | 4.7 | 4.7 | 4.8 | 5.1 | 5.1 | 5.7 | 5.8 | 6.7 | 7.4 | 7.5 | 7.5 | 9.7 | 9.6 | 9.9 | 10.0 | 10.5 |
| Period End | 2020-12-31 | 2020-09-30 |
| Value | -2.6 | 347 |
| Percentage of StockIssuedDuringPeriodValueNewIssues | 100.0 | 100.0 |
| Percentage of Assets | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 |
| Value | 0.0 | 0.5 |
| Percentage of StockIssuedDuringPeriodValueNewIssues | -0.0 | 0.1 |
| Percentage of Assets | 0.0 | 0.0 |
| Percentage of Assets us-gaap:CommonClassC us-gaap:CommonStock | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 |
| Value | -2.6 | 347 |
| Percentage of StockIssuedDuringPeriodValueNewIssues | 100.0 | 99.9 |
| Percentage of Assets | 0.0 | 0.0 |
| Percentage of Assets us-gaap:AdditionalPaidInCapital | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2020-09-30 |
| Value | -2.6 | 347 |
| Percentage of StockIssuedDuringPeriodValueNewIssues | 100.0 | 100.0 |
| Percentage of Assets | 0.0 | 0.0 |
| Percentage of Assets us-gaap:Parent | 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 | 22 | 27 | 12 | 19 | 14 | 21 | 6.9 | 12 | 9.7 | 14 | 11 | 10 | 6.7 | 7.4 |
| Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue | 100.0 | 100.0 | 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 |
| 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 | 22 | 27 | 12 | 19 | 14 | 21 | 6.9 | 12 | 9.7 | 14 | 12 | 10.0 | 5.6 | 7.4 |
| Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 103.4 | 96.2 | 83.6 | 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 |
| 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 |
| 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 | 22 | 27 | 12 | 19 | 14 | 21 | 6.9 | 12 | 9.7 | 14 | 12 | 10.0 | 5.6 | 7.4 |
| Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 103.4 | 96.2 | 83.6 | 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 |
| 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 |
| Period End | 2021-06-30 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2018-12-31 | 2018-09-30 | 2018-06-30 |
| Value | 1.3 | 35 | 0.1 | 2.5 | 2.9 | 0.0 | 19 |
| Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders | 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 |
| Period End | 2021-06-30 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2018-12-31 | 2018-09-30 | 2018-06-30 |
| Value | 1.3 | 35 | 0.1 | 2.5 | 2.9 | 0.0 | 19 |
| Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders | 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 |
| Percentage of Assets us-gaap:NoncontrollingInterest | 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 | 240 | 203 | 149 | 137 | 238 | 114 | 327 | 159 | 243 | 187 | 208 | 210 | 234 | 163 | 181 | 93 | 223 | 75 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 20.6 | 17.5 | 13.6 | 15.5 | 28.1 | 12.3 | 33.6 | 16.4 | 24.8 | 19.9 | 21.9 | 22.8 | 25.5 | 17.9 | 21.4 | 10.3 | 24.3 | 8.2 |
| 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 | -214.5 | -126.4 | -2031.9 | -155.8 | -116.0 | -147.1 | -78.4 | -135.5 | -135.9 | -285.5 | -389.0 | -167.0 | -236.7 | -187.8 | -186.0 | -202.8 | -124.3 | -127.0 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -18.4 | -10.9 | -185.2 | -17.6 | -13.7 | -15.8 | -8.0 | -14.0 | -13.8 | -30.3 | -41.0 | -18.1 | -25.7 | -20.6 | -21.9 | -22.3 | -13.5 | -13.9 |
| 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 |
| Value | -29.6 | 333 | -193.8 | -122.5 | 132 | 455 | 1189 | 30 | 281 | 39 | 39 | -6.2 | 235 | -11.8 | -6.2 | 34 | -21.1 | 34 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -2.5 | 28.7 | -17.7 | -13.8 | 15.5 | 48.9 | 122.0 | 3.1 | 28.6 | 4.2 | 4.1 | -0.7 | 25.5 | -1.3 | -0.7 | 3.8 | -2.3 | 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 |
| Value | -6.3 | 412 | -2070.4 | -140.8 | 252 | 414 | 1436 | 45 | 388 | -55.9 |
| Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -0.5 | 35.6 | -188.7 | -15.9 | 29.7 | 44.5 | 147.4 | 4.7 | 39.6 | -5.9 |
| 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 |
| Value | 19 | 7.2 | 4.4000000000000075 | -50.5 | 1.3 | -20.3 | 48 | -56.6 | -3.3 | -21.6 | -10.3 | 6.9 | -22.0 | -7.5 | -44.2 | -40.3 | -33.3 | -17.3 |
| 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 |
| 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 | 254 | 245 | 253 | 231 | 216 | 213 | 205 | 226 | 222 | 217 | 215 | 204 | 207 | 202 | 207 | 199 | 192 | 193 |
| Percentage of DepreciationDepletionAndAmortization | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 240 | 203 | 149 | 137 | 238 | 114 | 327 | 159 | 243 | 187 | 208 | 210 | 234 | 163 | 181 | 93 | 223 | 75 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 20.6 | 17.5 | 13.6 | 15.5 | 28.1 | 12.3 | 33.6 | 16.4 | 24.8 | 19.9 | 21.9 | 22.8 | 25.5 | 17.9 | 21.4 | 10.3 | 24.3 | 8.2 |
| 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 |
| Value | 4.4 | 87 | -28.9 | -84.6 | -393.0 | -180.7 | 42 | 35 | -116.0 | -41.7 | -233.0 | -25.5 | -42.2 | -44.5 | -400.8 | -343.3 | -28.2 | -5.8 | -107.2 | -162.3 | -123.4 | -39.4 |
| 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 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 0.4 | 7.6 | -2.6 | -9.5 | -46.3 | -19.4 | 4.3 | 3.7 | -11.8 | -4.4 | -24.6 | -2.8 | -4.6 | -4.9 | -47.1 | -37.8 | -3.1 | -0.6 | -11.6 | -18.2 | -20.5 | -13.0 |
| 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 | 1.0 | 89 | -34.1 | -90.0 | -500.2 | -184.6 | 39 | -69.7 | -111.2 | -41.2 | -535.2 | -18.8 | -27.5 | -54.3 | -440.9 | -355.7 | -12.7 | 10 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 0.1 | 7.7 | -3.1 | -10.1 | -58.9 | -19.8 | 4.1 | -7.2 | -11.3 | -4.4 | -56.4 | -2.0 | -3.0 | -6.0 | -51.9 | -39.2 | -1.4 | 1.2 |
| 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 |
| Value | -3.4 | 1.6 | -5.2 | -5.4 | -107.2 | -3.9 | -2.6 | -105.0 | 4.8 | 0.5 | -302.2 | 6.7 | 14 | -9.8 |
| Percentage of ProfitLoss | -340.0 | 1.8 | 15.2 | 6.0 | 21.4 | 2.1 | -6.5 | 150.6 | -4.3 | -1.2 | 56.5 | -35.6 | -53.5 | 18.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -0.3 | 0.1 | -0.5 | -0.6 | -12.6 | -0.4 | -0.3 | -10.9 | 0.5 | 0.1 | -31.9 | 0.7 | 1.6 | -1.1 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax 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 |
| 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 | 4.4 | 87 | -28.9 | -84.6 | -393.0 | -180.7 | 42 | 35 | -116.0 | -41.7 | -233.0 | -25.5 | -42.2 | -44.5 |
| Percentage of ProfitLoss | 440.0 | 98.2 | 84.8 | 94.0 | 78.6 | 97.9 | 106.5 | -50.6 | 104.3 | 101.2 | 43.5 | 135.6 | 153.5 | 82.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 0.4 | 7.6 | -2.6 | -9.5 | -46.3 | -19.4 | 4.3 | 3.7 | -11.8 | -4.4 | -24.6 | -2.8 | -4.6 | -4.9 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax 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 |
| 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 | 4.4 | 87 | -28.9 | -84.6 | -393.0 | -180.7 | 42 | 35 | -116.0 | -41.7 | -233.0 | -25.5 | -42.2 | -44.5 |
| Percentage of ProfitLoss | 440.0 | 98.2 | 84.8 | 94.0 | 78.6 | 97.9 | 106.5 | -50.6 | 104.3 | 101.2 | 43.5 | 135.6 | 153.5 | 82.0 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | 0.4 | 7.6 | -2.6 | -9.5 | -46.3 | -19.4 | 4.3 | 3.7 | -11.8 | -4.4 | -24.6 | -2.8 | -4.6 | -4.9 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax 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 |
| 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 | 32 | 23 | 22 | 28 | 23 | 23 | 12 | 15 | 15 | 14 | 13 | 11 | 8.7 | 6.5 | 2.3 | 3.3 | 3.0 | 5.6 |
| 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 |
| 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 | -214.5 | -126.4 | -2031.9 | -155.8 | -116.0 | -147.1 | -78.4 | -135.5 | -135.9 | -285.5 | -389.0 | -167.0 | -236.7 | -187.8 | -186.0 | -202.8 | -124.3 | -127.0 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -18.4 | -10.9 | -185.2 | -17.6 | -13.7 | -15.8 | -8.0 | -14.0 | -13.8 | -30.3 | -41.0 | -18.1 | -25.7 | -20.6 | -21.9 | -22.3 | -13.5 | -13.9 |
| 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 |
| Value | 214 | 152 | 188 | 156 | 153 | 132 | 229 | 186 | 166 | 139 | 190 | 169 | 217 | 194 | 273 | 193 | 170 | 139 |
| 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 |
| 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 | 7.1 | 4.4 | 7.9 | 6.1 | 2.0 | 4.2 | 10 | 1.7 | 1.7 | 1.6 | 1.4 | 3.3 | 11 | 0.0 | 0.0 | 0.0 |
| Percentage of PaymentsToAcquirePropertyPlantAndEquipment | 3.3 | 2.9 | 4.2 | 3.9 | 1.3 | 3.2 | 4.5 | 0.9 | 1.0 | 1.2 | 0.7 | 1.9 | 5.2 | 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 | 2017-09-30 |
| Value | 73 | 49 | 82 | 81 | 70 | 119 | 82 | 63 | 93 | 102 | 67 | 119 |
| Percentage of PaymentsToAcquirePropertyPlantAndEquipment | 34.1 | 32.5 | 52.3 | 53.2 | 53.0 | 63.8 | 49.4 | 45.7 | 54.8 | 46.9 | 34.6 | 61.8 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-06-30 | 2020-03-31 |
| Value | 20 | 10 | 17 | 13 |
| Percentage of PaymentsToAcquirePropertyPlantAndEquipment | 9.4 | 7.0 | 11.6 | 9.9 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-06-30 | 2020-03-31 |
| Value | 7.3 | 7.3 | 6.9 | 4.0 |
| Percentage of PaymentsToAcquirePropertyPlantAndEquipment | 3.4 | 4.8 | 4.5 | 3.0 |
| 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 | 2017-09-30 |
| Value | 51 | 33 | 45 | 19 | 19 | 13 | 32 | 16 | 19 | 19 | 22 | 24 | 45 | 69 | 19 |
| Percentage of PaymentsToAcquirePropertyPlantAndEquipment | 23.8 | 22.1 | 23.9 | 12.4 | 12.8 | 10.0 | 13.9 | 9.0 | 11.6 | 14.2 | 11.8 | 14.4 | 20.8 | 36.0 | 10.3 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-06-30 | 2020-03-31 |
| Value | 55 | 46 | 43 | 40 |
| Percentage of PaymentsToAcquirePropertyPlantAndEquipment | 26.0 | 30.6 | 28.2 | 30.8 |
| 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 | 52 | 49 | 50 | 44 | 56 | 49 | 63 | 54 | 49 | 48 | 59 | 57 |
| Percentage of PaymentsToAcquirePropertyPlantAndEquipment | 27.7 | 31.4 | 32.7 | 33.8 | 24.6 | 26.3 | 37.9 | 38.9 | 26.2 | 28.8 | 27.1 | 29.4 |
| 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 |
| Value | 198 | 135 | 147 | 146 | 122 | 149 | 157 | 136 | 135 | 159 | 183 | 167 | 236 | 188 | 191 | 199 | 123 | 124 |
| Percentage of PaymentsToAcquireProductiveAssets | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 | -29.6 | 333 | -193.8 | -122.5 | 132 | 455 | 1189 | 30 | 281 | 39 | 39 | -6.2 | 235 | -11.8 | -6.2 | 34 | -21.1 | 34 |
| 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 |
| Percentage of RevenueFromContractWithCustomerIncludingAssessedTax | -2.5 | 28.7 | -17.7 | -13.8 | 15.5 | 48.9 | 122.0 | 3.1 | 28.6 | 4.2 | 4.1 | -0.7 | 25.5 | -1.3 | -0.7 | 3.8 | -2.3 | 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 |
| Value | 36 | 696 | 30 | 636 | 113 | 539 | 1325 | 320 | 1119 | 201 | 682 | 27 | 335 | 190 | 85 | 1455 | 81 | 136 |
| Percentage of ProceedsFromIssuanceOfLongTermDebt | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 2020-07-31 |
| Value | 1260 |
| Percentage of RepaymentsOfLongTermDebt | 100.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-06-30 | 2019-03-31 |
| Value | 0 | 0 | 8100000.0 | 1400000.0 | 0 | 0 |
| Percentage of PaymentsForRepurchaseOfCommonStock | 0.0 | 0.0 | 100.0 | 100.0 | 0.0 | 0.0 |
| Period End | 2020-07-31 |
| Value | 0.06375 |
| Percentage of DebtInstrumentInterestRateStatedPercentage | 100.0 |
| Percentage of LongTermDebtAndCapitalLeaseObligations | 0.0 |
| Percentage of LongTermDebtAndCapitalLeaseObligations lila:A2028VTRFinanceSeniorNotes us-gaap:SeniorNotes us-gaap:SubsequentEvent | 0.0 |
| Period End | 2020-07-31 |
| Value | 0.05125 |
| Percentage of DebtInstrumentInterestRateStatedPercentage | 80.4 |
| Percentage of LongTermDebtAndCapitalLeaseObligations | 0.0 |
| Percentage of LongTermDebtAndCapitalLeaseObligations lila:A2028VTRSeniorSecuredNotes us-gaap:SeniorNotes us-gaap:SubsequentEvent | 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 | 2017-09-30 | 2017-06-30 | 2017-03-31 |
| Value | -97.4 | -23.9 | -32.2 | 0.008 | 0.031 | -0.724 | 0.361 | 0.12 | 3.066 | 2.95 | -0.448 | 0.016 | 2.512 | 0.685 |
| Percentage of EffectiveIncomeTaxRateContinuingOperations | 100.0 | 100.0 | 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 |
| Value | 578 | 346 | 398 | 395 | 534 |
| Percentage of DeferredTaxLiabilities | 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 | 514 | 208 | 222 | 480 | 236 |
| Percentage of DeferredTaxAssetsNet | 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 | 32 | 64 | 249 | 264 | 182 | 3.6 | 0.0 |
| Percentage of UnrecognizedTaxBenefits | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 |
| Value | 1630 | 1402 | 1308 | 1282 | 1328 | 70 | 67 |
| Percentage of DeferredTaxAssetsValuationAllowance | 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 |
| Value | -700000.0 | -3900000.0 | -800000.0 | -1200000.0 | 6500000.0 |
| Percentage of AccountsReceivableAllowanceforCreditLossForeignCurrencyTranslation | 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 | 464 | 449 | 428 | 360 | 332 | 363 | 408 | 379 | 387 | 365 | 428 | 364 | 353 | 340 | 305 | 352 | 361 | 347 |
| Percentage of AdjustedOperatingIncomeLossBeforeDepreciationAndAmortization | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 | -12.5 | -10.5 | -10.8 | -11.2 | -9.7 | -12.8 | -15.9 | -15.8 | -11.9 | -11.5 | -11.2 | -12.6 | -11.0 | -11.3 | -9.7 | -5.1 | -5.2 | -5.1 |
| Percentage of AdjustedOperatingIncomeLossBeforeDepreciationAndAmortization | -2.7 | -2.3 | -2.5 | -3.1 | -2.9 | -3.5 | -3.9 | -4.2 | -3.1 | -3.1 | -2.6 | -3.5 | -3.1 | -3.3 | -3.2 | -1.4 | -1.4 | -1.5 |
| Period End | 2021-06-30 | 2021-03-31 | 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 | 188 | 181 | 220 | 203 | 232 | 265 | 236 | 235 | 222 | 236 | 226 | 223 | 229 | 225 | 219 | 220 | 209 |
| Percentage of AdjustedOperatingIncomeLossBeforeDepreciationAndAmortization | 40.5 | 40.4 | 61.2 | 61.2 | 64.0 | 65.0 | 62.2 | 60.8 | 60.8 | 55.2 | 62.2 | 63.3 | 67.2 | 73.9 | 62.4 | 61.0 | 60.4 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-06-30 | 2020-03-31 |
| Value | 45 | 44 | 36 | 45 |
| Percentage of AdjustedOperatingIncomeLossBeforeDepreciationAndAmortization | 9.8 | 9.8 | 11.1 | 12.6 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-06-30 | 2020-03-31 |
| Value | 12 | 14 | 13 | 13 |
| Percentage of AdjustedOperatingIncomeLossBeforeDepreciationAndAmortization | 2.7 | 3.1 | 4.0 | 3.7 |
| 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 |
| Value | 161 | 149 | 115 | 58 | 52 | 50 | 52 | 50 | 51 | 47 | 92 | 50 | 35 | 18 | -12.1 | 39 | 53 | 51 |
| Percentage of AdjustedOperatingIncomeLossBeforeDepreciationAndAmortization | 34.8 | 33.4 | 27.1 | 16.1 | 15.8 | 13.9 | 12.9 | 13.4 | 13.3 | 13.1 | 21.5 | 13.7 | 10.1 | 5.3 | -4.0 | 11.2 | 14.9 | 14.8 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-06-30 | 2020-03-31 |
| Value | 68 | 70 | 73 | 80 |
| Percentage of AdjustedOperatingIncomeLossBeforeDepreciationAndAmortization | 14.8 | 15.7 | 22.0 | 22.0 |
| 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 | 89 | 92 | 86 | 93 | 105 | 108 | 112 | 106 | 110 | 100 | 105 | 105 |
| Percentage of AdjustedOperatingIncomeLossBeforeDepreciationAndAmortization | 20.9 | 25.8 | 25.9 | 25.7 | 25.9 | 28.6 | 29.0 | 29.2 | 25.9 | 27.5 | 29.7 | 30.8 |
| Period End | 2020-09-30 | 2019-09-30 |
| Value | 5.0 | 2.0 |
| Percentage of AmortizationOfPremiumsOnDerivativeInstruments | 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 |
| Value | 104 | 114 | 103 | 83 | 84 | 87 | 81 | 96 | 96 |
| Percentage of FacilityRelatedCostsProvisionForBadDebtAndFranchiseRelatedFees | 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 |
| Value | -0.2 | 34 | 328 | -8.0 | 0.0 | 20 |
| Percentage of GoodwillAcquisitionsAndRelatedAdjustments | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 |
| Period End | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | -8.0 | 0.0 | 20 |
| Percentage of GoodwillAcquisitionsAndRelatedAdjustments | 100.0 | 0.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-06-30 | 2020-03-31 |
| Value | -0.2 | 34 | 0.0 | 0.0 |
| Percentage of GoodwillAcquisitionsAndRelatedAdjustments | 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 |
| Value | 3.4 | 2.0 | -29.7 | 17 | -1.4 | 39 | -34.9 | -17.6 | -15.1 | 31 | 7.2 | 6.2 | 33 | 15 | -73.2 | 20 | -25.3 | 0.2 |
| Percentage of IncreaseDecreaseinCurrentLiabilitiesRelatedtoCapitalExpenditures | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 |
| Value | 80 | 77 | 68 | 66 | 62 | 63 | 69 | 65 | 65 |
| Percentage of NetworkRelatedCosts | 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 | 28 | 26 | 30 | 26 | 19 | 33 | 37 | 36 | 26 | 31 | 53 | 24 | 63 | 32 | 18 | 10.0 | 37 | 10.0 |
| Percentage of OperatingExpensesFinancedByIntermediary | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 29.5 |
| Percentage of OptionIndexedToIssuersEquityCapPrice | 100.0 |
| Period End | 2020-09-30 |
| Value | 28.0 |
| Percentage of OptionIndexedToIssuersEquityCapPrice | 94.9 |
| Period End | 2020-12-31 |
| Value | 29.5 |
| Percentage of OptionIndexedtoIssuersEquityCapPrice | 100.0 |
| Period End | 2020-12-31 |
| Value | 28.0 |
| Percentage of OptionIndexedtoIssuersEquityCapPrice | 94.9 |
| 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 |
| Value | 13 | 23 | 18 | 34 | 1.2 | -4.0 | -3.6 | 9.5 | -5.1 | -12.0 | 32 | 0.6 | -5.3 | -11.7 | -3.2 | -5.5 | -7.5 | -10.7 |
| Percentage of PaymentsForProceedsFromDerivativeInstrumentOperatingActivities | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 14 | 67 | 16 | 33 | -186.8 | -2.5 | -5.6 | 8.8 | -7.5 | -13.1 | 16 | 11 | -6.7 | -13.4 | -4.3 | -6.5 | -7.9 | -11.9 |
| Percentage of PaymentsforProceedsfromDerivativeInstrument | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 19 | 19 | 18 | 28 | 29 | 24 | 37 | 33 | 15 | 11 | 14 | 5.0 | 14 | 20 | 7.9 | 12 | 20 | 14 |
| Percentage of PropertyPlantandEquipmentAdditionsVendorFinancingArrangement | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 0.0 |
| Percentage of RightsOfferingGrossProceeds | 0.0 |
| Period End | 2020-08-05 |
| Value | 7.14 |
| Percentage of RightsOfferingSubscriptionPricePerShare | 100.0 |
| Period End | 2020-08-05 |
| Value | 25.0 |
| Percentage of RightsOfferingSubscriptionPricePercentageOfVolumeWeightedAverageTradingPrice | 100.0 |
| Period End | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 |
| Value | -0.25 | 0 | 10.42 | -0.23 |
| Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsGrantsinPeriodWeightedAverageExercisePrice | 100.0 | 0.0 | 100.0 | 100.0 |
| Period End | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 |
| Value | -0.25 | 0 | 10.48 | -0.25 |
| Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsGrantsinPeriodWeightedAverageExercisePrice | 100.0 | 0.0 | 100.6 | 108.7 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 |
| Value | 0 | 0 | 0 | 10.42 | -0.04 | -0.27 |
| Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageExercisePrice | 0.0 | 0.0 | 0.0 | 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 |
| Value | 0 | -0.01 | 0 | 10.48 | 0 | -0.28 |
| Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageExercisePrice | 0.0 | 0.0 | 0.0 | 100.6 | -0.0 | 103.7 |
| Period End | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 |
| Value | -0.13 | -0.03 | 7.27 | -0.11 |
| Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageGrantDateFairValue | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 |
| Value | -0.08 | -0.02 | 4.49 | -0.13 |
| Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageGrantDateFairValue | 61.5 | 66.7 | 61.8 | 118.2 |
| Period End | 2020-09-30 |
| Value | 20 |
| Percentage of UnrecognizedTaxBenefitsDecreaseResultingFromRecentTaxReforms | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 13 | 13 | 15 | 20 | 14 | 10 |
| Percentage of AllowanceForDoubtfulAccountsReceivableWriteOffs | 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 | 9.1 | 6.8 | 8.4 | 7.5 | 6.6 | 7.9 | 8.0 | 6.8 | 1.4 | 0.6 | 1.6 | -0.8 | -0.6 | -0.5 | -0.4 | -4.4 | -3.9 | -3.8 |
| Percentage of AmortizationOfFinancingCostsAndDiscounts | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 0.6 | 2.3 | 3.2 | 1.2 | 277 | 1.7 | 3.1 | 196 | 0.0 | 0.1 | 609 | 1.1 | 3.1 | 2.2 |
| Percentage of AssetImpairmentCharges | 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 |
| Period End | 2020-10-31 |
| Value | 56 |
| Percentage of BusinessCombinationAcquisitionRelatedCosts | 100.0 |
| Period End | 2020-07-30 |
| Value | 500 |
| Percentage of BusinessCombinationConsiderationTransferred1 | 100.0 |
| Period End | 2020-11-30 |
| Value | 2.0 |
| Percentage of DebtInstrumentBasisSpreadOnVariableRate1 | 100.0 |
| Period End | 2020-09-30 | 2019-06-30 |
| Value | 0.048432 | 0.044977 |
| Percentage of DebtInstrumentConvertibleConversionRatio1 | 100.0 | 100.0 |
| Period End | 2020-07-31 |
| Value | 1.0319 |
| Percentage of DebtInstrumentRedemptionPricePercentage | 100.0 |
| Period End | 2020-07-31 |
| Value | 1.0 |
| Percentage of DebtInstrumentRedemptionPricePercentage | 96.9 |
| Period End | 2020-07-31 |
| Value | 1.0159 |
| Percentage of DebtInstrumentRedemptionPricePercentage | 98.5 |
| Period End | 2020-07-31 |
| Value | 1.03 |
| Percentage of DebtInstrumentRedemptionPricePercentage | 99.8 |
| Period End | 2020-07-31 |
| Value | 1.0256 |
| Percentage of DebtInstrumentRedemptionPricePercentage | 99.4 |
| Period End | 2020-07-31 |
| Value | 1.0 |
| Percentage of DebtInstrumentRedemptionPricePercentage | 96.9 |
| Period End | 2020-07-31 |
| Value | 1.0128 |
| Percentage of DebtInstrumentRedemptionPricePercentage | 98.2 |
| Period End | 2021-03-31 |
| Value | 103.0 |
| Percentage of DebtInstrumentRedemptionPricePercentage | 0.0 |
| Period End | 2021-03-31 |
| Value | 100.0 |
| Percentage of DebtInstrumentRedemptionPricePercentage | 0.0 |
| Period End | 2021-03-31 |
| Value | 100.0 |
| Percentage of DebtInstrumentRedemptionPricePercentage | 0.0 |
| Period End | 2021-03-31 |
| Value | 100.0 |
| Percentage of DebtInstrumentRedemptionPricePercentage | 0.0 |
| Period End | 2021-07-31 | 2018-10-31 |
| Value | 103.0 | 1.03 |
| Percentage of DebtInstrumentRedemptionPricePercentage | 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 | -9.0 | -21.0 | 6.0 | 1.0 | 7.0 | 33 | -3.0 | 1.0 | 4.0 | 2.0 | -1.0 | -1.0 | -9.0 | -12.0 | 14 | 4.0 | -2.0 | 7.0 |
| Percentage of DerivativeGainLossOnDerivativeNet | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 |
| Value | 0.0 | 0.0 | -106.0 |
| Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet | 0.0 | 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 |
| Value | -2400000.0 | 2800000.0 | 6200000.0 | 100000.0 | -2700000.0 | -8500000.0 | -2300000.0 | -7900000.0 | 0 | 2500000.0 | -3000000.0 | -300000.0 | -15400000.0 | 100000.0 | -600000.0 | 5000000.0 | -2200000.0 | -500000.0 |
| Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents | 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 |
| Period End | 2020-07-31 |
| Value | 550 |
| Percentage of ExtinguishmentOfDebtAmount | 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 | -2.0 | 1.0 | 15 | 3.0 | 3.0 | 10.0 | -6.0 | 7.0 | 4.0 | 1.0 | -5.0 | 3.0 | -7.0 | -5.0 | -10.2 | 3.0 | 0.0 | -4.0 |
| Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings | 100.0 | 100.0 | 100.0 | 100.0 | 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 |
| Value | -44.4 | -25.4 | 116 | 30 | 19 | -164.3 | -14.4 | -110.8 | -19.5 | 32 | -58.9 | -16.4 | -120.6 | 15 | 53 | 43 | -16.8 | 14 |
| Percentage of ForeignCurrencyTransactionGainLossBeforeTax | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 57 | 114 | -113.0 | -78.1 | -179.0 | 17 | 79 | 51 | -79.0 | -69.0 | 12 | 8.9 | 115 | -41.5 | -55.0 | -78.6 | -9.2 | -27.3 |
| Percentage of GainLossOnDerivativeInstrumentsNetPretax | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 | -6.3 | -5.3 | -3.3 | -2.4 |
| Percentage of GainLossOnDerivativeInstrumentsNetPretax | -11.0 | -4.6 | 1.8 | -13.8 |
| 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 |
| Value | 59 | 119 | -93.9 | -70.7 | -173.3 | 9.3 | 78 | 46 | -75.8 | -70.0 | 5.9 | 8.4 | 94 | -38.9 | -50.0 | -70.5 | -11.8 | -25.5 |
| Percentage of GainLossOnDerivativeInstrumentsNetPretax | 104.0 | 104.0 | 83.1 | 90.5 | 96.8 | 53.4 | 98.5 | 90.7 | 95.9 | 101.4 | 48.0 | 94.4 | 81.8 | 93.7 | 90.9 | 89.7 | 128.3 | 93.4 |
| 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 |
| Value | 4.0 | 0.7 | -2.8 | -7.4 | -5.7 | 8.1 | 1.2 | 4.8 | -3.2 | 1.0 | 6.4 | 0.5 | 20 | -2.6 | -5.0 | -8.1 | 2.6 | -1.8 |
| Percentage of GainLossOnDerivativeInstrumentsNetPretax | 7.0 | 0.6 | 2.5 | 9.5 | 3.2 | 46.6 | 1.5 | 9.3 | 4.1 | -1.4 | 52.0 | 5.6 | 18.2 | 6.3 | 9.1 | 10.3 | -28.3 | 6.6 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-06-30 | 2020-03-31 |
| Value | 500000.0 | 8600000.0 | -900000.0 | -200000.0 |
| Percentage of GainLossOnDispositionOfAssets1 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 0 | 9000000.0 |
| Percentage of GainLossOnSaleOfBusiness | 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 |
| Value | -39.1 | -36.9 | 29 | -6.6 | -30.0 | -78.1 | 18 | -72.9 | -42.6 | 40 | 23 | -57.7 | -61.0 | -10.0 |
| 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 |
| Period End | 2021-06-30 | 2021-03-31 | 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 | -30.5 | -33.5 | -15.1 | -42.0 | -33.1 | 27 | -46.8 | -47.5 | 30 | 50 | -56.1 | -26.9 | -18.3 |
| Percentage of GoodwillForeignCurrencyTranslationGainLoss | 78.0 | 90.8 | 228.8 | 140.0 | 42.4 | 149.5 | 64.2 | 111.5 | 75.8 | 216.2 | 97.2 | 44.1 | 183.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | -1.8 | 0.2 |
| Percentage of GoodwillForeignCurrencyTranslationGainLoss | 4.6 | -0.5 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | -6.8 | -3.6 |
| Percentage of GoodwillForeignCurrencyTranslationGainLoss | 17.4 | 9.8 |
| 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 |
| Value | 33 | 8.5 | 12 | -45.0 | -9.0 | -26.1 | 4.9 | 9.8 |
| Percentage of GoodwillForeignCurrencyTranslationGainLoss | 111.8 | -128.8 | -40.0 | 57.6 | -49.5 | 35.8 | -11.5 | 24.2 |
| 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 | 2017-09-30 | 2017-06-30 | 2017-03-31 |
| Value | 63 | 96 | 80 | -54.2 | 77 | 221 | -11.3 | 18 | 25 | -50.2 | 55 | 124 | -13.4 | 140 |
| 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 |
| Period End | 2021-03-31 |
| Value | 19 |
| Percentage of IncrementalCommonSharesAttributableToConversionOfDebtSecurities | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2019-09-30 |
| Value | 839220.0 | 1066000.0 | 354840.0 |
| Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements | 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 |
| Value | 96 | 93 | 101 | 86 | 103 | 106 | 111 | 105 | 98 | 101 | 96 | 79 | 100 | 106 | 102 |
| Percentage of InformationTechnologyAndDataProcessing | 100.0 | 100.0 | 100.0 | 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 |
| Value | 5900000.0 |
| Percentage of InterestOnConvertibleDebtNetOfTax | 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 | 24 | 25 | 23 | 13 | 14 | 14 | 16 | 14 | 12 | 12 | 12 | 12 | 11 | 12 |
| Percentage of LeaseCost | 100.0 | 100.0 | 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 | 4200000.0 | 0 | -4200000.0 | 2100000.0 |
| Percentage of NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1 | 100.0 | 0.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 4200000.0 | 0 | 0 | -2100000.0 |
| Percentage of NoncashOrPartNoncashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumed1 | 100.0 | 0.0 | -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 |
| Value | 18 | 21 | 19 | 10 | 10 | 11 | 13 | 11 | 10 | 10 | 12 | 12 | 11 | 12 |
| Percentage of OperatingLeaseCost | 100.0 | 100.0 | 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 |
| Value | 19 | 20 | 17 | 10 | 8.9 | 10 |
| Percentage of OperatingLeasePayments | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 |
| Value | 20.65 |
| Percentage of OptionIndexedToIssuersEquityStrikePrice1 | 100.0 |
| Period End | 2020-12-25 | 2020-09-30 |
| Value | 0 | 20.65 |
| Percentage of OptionIndexedToIssuersEquityStrikePrice1 | 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 | -17.1 | -26.0 | -51.2 | -27.4 | -35.7 | -4.7 | 34 | -6.8 | -38.0 | 12 | 113 | -66.6 | -12.0 | -31.8 | 50 | -34.2 | -41.6 | -10.6 |
| Percentage of OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 | -1400000.0 | -1200000.0 | -3100000.0 | -600000.0 | 300000.0 | 2800000.0 | -1300000.0 | 800000.0 | 2200000.0 | 1300000.0 | 400000.0 | 100000.0 | -1100000.0 | -1600000.0 | 200000.0 | -1300000.0 | -500000.0 | -1000000.0 |
| Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 | -3.0 | -0.2 | -5.7 | 0.5 | -0.5 | -1.1 | -1.1 | -3.2 | 0.9 | 1.0 | -26.5 | 0.4 | -7.5 | -0.9 | 11 | 3.2 | -4.1 | 3.5 |
| Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 461 | 453 | 425 | 365 | 360 | 184 | 170 | 177 | 175 | 166 | 154 | 157 | 163 | 166 | 170 | 168 | 165 | 170 |
| Percentage of OtherCostAndExpenseOperating | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 |
| Value | 0.0 | 43 | -1.9 | 0.1 | -185.0 | 4.3 | 0.0 | 0.0 | -0.2 | 0.5 | -20.8 | 10 | 0.0 | 0.0 | 0.0 |
| Percentage of PaymentsForProceedsFromDerivativeInstrumentFinancingActivities | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 0.0 | 32 |
| Percentage of PaymentsForProceedsFromDerivativeInstrumentFinancingActivities | 0.0 | 74.4 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 0.0 | 11 |
| Percentage of PaymentsForProceedsFromDerivativeInstrumentFinancingActivities | 0.0 | 25.6 |
| 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 |
| Value | 1000000.0 | 700000.0 | 0 | -1600000.0 | -3000000.0 | -2800000.0 | -2000000.0 | -700000.0 | -2200000.0 | -1600000.0 | 5300000.0 | 100000.0 | -1400000.0 | -1700000.0 | -1100000.0 | -1000000.0 | -400000.0 | -1200000.0 |
| Percentage of PaymentsForProceedsFromDerivativeInstrumentInvestingActivities | 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 |
| 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 | 11 | -1.6 | 0.7 | 0.1 | -0.3 | -2.0 | -1.1 | -0.2 | -0.3 | -0.1 | -0.9 | -0.2 | -0.4 | -7.1 | 3.6 | 0.4 | 2.6 |
| Percentage of PaymentsForProceedsFromOtherInvestingActivities | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 16 | 4.7 | 6.2 | 8.4 | 7.5 | 7.9 | 17 | 7.9 | 9.0 | 2.9 | 19 | 6.8 |
| Percentage of PaymentsForRestructuring | 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 | 3.0 | 1.4 | 2.6 | 3.4 | 2.1 | 3.0 | 5.1 | 2.8 | 6.3 | 2.1 | 3.8 | 1.3 |
| Percentage of PaymentsForRestructuring | 17.9 | 29.8 | 41.9 | 40.5 | 28.0 | 38.0 | 29.5 | 35.4 | 70.0 | 72.4 | 19.9 | 19.1 |
| 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 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 13 | 3.3 | 3.6 | 5.0 | 5.4 | 4.9 | 12 | 5.1 | 2.7 | 0.8 | 15 | 5.5 |
| Percentage of PaymentsForRestructuring | 82.1 | 70.2 | 58.1 | 59.5 | 72.0 | 62.0 | 70.5 | 64.6 | 30.0 | 27.6 | 80.1 | 80.9 |
| Period End | 2020-07-31 |
| Value | 29 |
| Percentage of PaymentsOfDebtExtinguishmentCosts | 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 | 2017-12-31 |
| Value | 7.3 | 26 | 23 | 48 | 0.9 | 25 | 19 | 10 | 25 | 0.0 | 29 | 1.8 | 0.1 |
| Percentage of PaymentsOfFinancingCosts | 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 |
| 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 | 1886 | 8.2 | -6.3 | -1.8 | 0.8 | 0.0 | 0.3 | 160 | 226 | 0.0 | 0.0 | 0.0 |
| Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 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 |
| Value | 3.3 | 1.6 | 0.0 | 0.7 | 35 | 0.1 | 2.5 | 0.0 | 2.9 | 0.0 | 19 | 0.0 | 12 | 0.0 | 18 | 14 |
| Percentage of PaymentsToMinorityShareholders | 100.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 0.0 | 100.0 | 0.0 | 100.0 | 0.0 | 100.0 | 100.0 |
| Period End | 2020-07-31 |
| Value | 187 |
| Percentage of ProceedsFromDerivativeInstrumentFinancingActivities | 100.0 |
| Period End | 2020-12-31 |
| Value | -2.6 |
| Percentage of ProceedsFromIssuanceOfCommonStock | 100.0 |
| Period End | 2020-07-31 |
| Value | 1133 |
| Percentage of ProceedsFromIssuanceOfDebt | 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 | -2.3 | -4.9 | 2.5 | -0.2 | 0.0 | -7.4 | -3.0 | -3.0 | 0.1 | -1.8 | 0.0 | 18 | -4.9 | -2.8 | -9.9 | 8.8 | -14.5 | 5.3 |
| Percentage of ProceedsFromPaymentsForOtherFinancingActivities | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 | 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 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-06-30 | 2020-03-31 |
| Value | 0.2 | 20 | 0.0 | 0.3 |
| Percentage of ProceedsFromSaleOfProductiveAssets | 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 |
| Value | 45 | 47 | 51 | 35 | 36 | 38 | 33 | 41 | 38 |
| Percentage of ProfessionalFees | 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 |
| Value | 10 | 12 | 12 | 14 | 20 | 15 |
| Percentage of ProvisionForDoubtfulAccounts | 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 | 45 | 288 | 179 | 1057 | 153 | 48 | 78 | 271 | 765 | 160 | 609 | 42 | 82 | 190 | 66 | 1281 | 47 | 73 |
| Percentage of RepaymentsOfDebtAndCapitalLeaseObligations | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 213 |
| Percentage of RepaymentsOfLinesOfCredit | 100.0 |
| Period End | 2020-08-05 |
| Value | 63 |
| Percentage of RepaymentsOfLinesOfCredit | 0.0 |
| Period End | 2020-11-04 | 2020-08-05 |
| Value | 100 | 213 |
| Percentage of RepaymentsOfLinesOfCredit | 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 |
| Value | 12 | 1.2 | 3.2 | 7.5 | 13 | 4.9 | 4.3 | 17 | -2.6 | 5.5 | 5.8 | 25 |
| Percentage of RestructuringCharges | 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 | 4.4 | 0.7 | 4.6 | 1.9 | 1.6 | 1.9 | 3.5 | 2.3 | 3.2 | 3.0 | 1.0 | 1.6 |
| Percentage of RestructuringCharges | 34.1 | 58.3 | 143.8 | 25.3 | 11.6 | 38.8 | 81.4 | 13.4 | -123.1 | 54.5 | 17.2 | 6.2 |
| 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 | 8.5 | 0.5 | -1.4 | 5.6 | 12 | 3.0 | 0.8 | 14 | -5.8 | 2.5 | 4.8 | 24 |
| Percentage of RestructuringCharges | 65.9 | 41.7 | -43.8 | 74.7 | 88.4 | 61.2 | 18.6 | 86.6 | 223.1 | 45.5 | 82.8 | 93.8 |
| Period End | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 0.0 | 0.0 | 2.0 |
| Percentage of RestructuringCharges | 0.0 | 0.0 | 26.7 |
| 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 | -1.1999999999999995 | -0.3000000000000005 | -0.8 | 5.2 | 0.1 | 1.3 | 0.1 | -0.3 | 1.0 | 0.1 | 1.9 | -0.4 |
| Percentage of RestructuringReserveTranslationAdjustment | 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 | -1.0 | -0.2 | -2.4 | 1.5 | 0.3 | 1.1 | 0.0 | -0.4 | 1.1 | 0.2 | 1.8 | -0.4 |
| Percentage of RestructuringReserveTranslationAdjustment | 83.3 | 66.7 | 300.0 | 28.8 | 300.0 | 84.6 | 0.0 | 133.3 | 110.0 | 200.0 | 94.7 | 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 | -0.2 | -0.1 | 1.6 | 3.7 | -0.2 | 0.2 | 0.1 | 0.1 | -0.1 | -0.1 | 0.1 | 0.0 |
| Percentage of RestructuringReserveTranslationAdjustment | 16.7 | 33.3 | -200.0 | 71.2 | -200.0 | 15.4 | 100.0 | -33.3 | -10.0 | -100.0 | 5.3 | -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 | 17 | 2.2 | 49 | 14 | 298 | 18 | 23 | 208 | 6.5 | 20 | 585 | 8.8 | 12 | 33 | 328 | 354 | 10 | 13 |
| Percentage of RestructuringSettlementAndImpairmentProvisions | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 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 |
| Value | 9.2 | 10 | 207 | 0.8 | 2.5 | 19 |
| Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability | 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 |
| Value | 143 | 138 | 132 | 113 | 113 | 124 | 126 | 126 | 128 |
| Percentage of SalariesWagesAndOfficersCompensation | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 |
| Value | 700000.0 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted | 100.0 |
| Period End | 2021-03-31 |
| Value | 1300000.0 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted | 185.7 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 0 | 11.76 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue | 0.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 0 | 11.48 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue | 0.0 | 97.6 |
| 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 | 5.9 | 4.0 | 3.8 | 3.5 | 3.4 | 2.8 | 2.8 | 3.6 | 1.9 | 2.1 | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of ShortTermLeaseCost | 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 | 0.0 |
| Period End | 2021-06-30 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 10000000.0 | 0 | 0 | 7800000.0 | 1700000.0 |
| Percentage of StockRepurchasedDuringPeriodValue | 100.0 | 0.0 | 0.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 10000000.0 | 0 | 0 | 7800000.0 | 1700000.0 |
| Percentage of StockRepurchasedDuringPeriodValue | 100.0 | 0.0 | 0.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 |
| Value | 10000000.0 | 0 | 0 | 7800000.0 | 1700000.0 |
| Percentage of StockRepurchasedDuringPeriodValue | 100.0 | 0.0 | 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 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 0 | 100000.0 | -1700000.0 | 1600000.0 | 0 | 100000.0 | 0 | -700000.0 | 1000000.0 | -100000.0 | 600000.0 | -2000000.0 | -100000.0 |
| Percentage of StockholdersEquityOther | 0.0 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 0 | 100000.0 | -1800000.0 | 1800000.0 | 0 | -900000.0 | -700000.0 | 700000.0 | -100000.0 | 600000.0 | -2800000.0 | 700000.0 |
| Percentage of StockholdersEquityOther | 0.0 | 100.0 | 105.9 | 112.5 | 0.0 | -900.0 | 100.0 | 70.0 | 100.0 | 100.0 | 140.0 | -700.0 |
| Period End | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2018-06-30 | 2018-03-31 |
| Value | 1600000.0 | 0 | 100000.0 | 0 | 0 | 300000.0 | 800000.0 | -800000.0 |
| Percentage of StockholdersEquityOther | 100.0 | 0.0 | 100.0 | 0.0 | -0.0 | 30.0 | -40.0 | 800.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 |
| Value | 0 | 100000.0 | -1800000.0 | 1800000.0 | 0 | -900000.0 | -700000.0 | 700000.0 | -100000.0 | 600000.0 | -2800000.0 | 700000.0 |
| Percentage of StockholdersEquityOther | 0.0 | 100.0 | 105.9 | 112.5 | 0.0 | -900.0 | 100.0 | 70.0 | 100.0 | 100.0 | 140.0 | -700.0 |
| Period End | 2020-07-31 | 2020-04-28 | 2020-01-31 | 2019-10-31 | 2019-07-31 | 2019-04-30 | 2019-01-31 | 2018-10-31 | 2018-07-31 | 2018-04-30 | 2018-01-31 |
| Value | 48 | 49 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 |
| 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 |
| Period End | 2020-07-31 | 2020-04-28 | 2020-01-31 | 2019-10-31 | 2019-07-31 | 2019-04-30 | 2019-01-31 | 2018-10-31 | 2018-07-31 | 2018-04-30 | 2018-01-31 |
| Value | 1.933993 | 1.934057 | 1.934605 | 1.934686 | 1.935226 | 1.935915 | 1.935949 | 1.936034 | 1.936034 | 1.936035 | 1.939993 |
| Percentage of EntityCommonStockSharesOutstanding | 4.0 | 3.9 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 |
| Period End | 2020-07-31 | 2020-04-28 | 2020-01-31 | 2019-10-31 | 2019-07-31 | 2019-04-30 | 2019-01-31 | 2018-10-31 | 2018-07-31 | 2018-04-30 | 2018-01-31 |
| Value | 131 | 131 | 131 | 131 | 130 | 130 | 130 | 130 | 120 | 120 | 120 |
| Percentage of EntityCommonStockSharesOutstanding | 268.7 | 268.6 | 268.9 | 268.9 | 269.0 | 269.0 | 269.1 | 269.1 | 249.5 | 249.5 | 249.5 |
| 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 | 2016-12-31 |
| Value | 55 | 65 | 73 | 47 | 51 | 57 | 72 | 52 | 57 | 59 | 75 | 71 | 83 | 108 | 128 | 87 |
| Percentage of AccruedCapitalExpendituresCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 196 |
| Percentage of BusinessCombinationAssetAcquiredAndLiabilitiesAssumedOperatingLeaseLiability | 100.0 |
| Period End | 2020-12-31 |
| Value | 10.5 |
| Percentage of BusinessCombinationMeasurementInput | 100.0 |
| Period End | 2020-12-31 |
| Value | 11 |
| Percentage of BusinessCombinationPresentValueOfCreditReceivedAgainstFutureServicesCurrent | 100.0 |
| Period End | 2020-12-31 |
| Value | 62 |
| Percentage of BusinessCombinationPresentValueOfCreditReceivedAgainstFutureServicesNoncurrent | 100.0 |
| Period End | 2020-10-31 |
| Value | 200000.0 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetAcquiredAndLiabilityAssumedCurrentLiabilitiesDebtAndFinanceLeaseObligations | 100.0 |
| Period End | 2020-10-31 |
| Value | 33 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetAcquiredAndLiabilityAssumedCurrentLiabilitiesOperatingLeaseLiability | 100.0 |
| Period End | 2020-10-31 |
| Value | 10 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetAcquiredAndLiabilityAssumedNoncurrentLiabilitiesDebtAndFinanceLeaseObligations | 100.0 |
| Period End | 2020-10-31 |
| Value | 163 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetAcquiredAndLiabilityAssumedNoncurrentLiabilitiesOperatingLeaseLiability | 100.0 |
| Period End | 2020-10-31 |
| Value | 196 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetAcquiredAndLiabilityAssumedOperatingLeaseRightOfUseAssets | 100.0 |
| Period End | 2020-10-31 |
| Value | 67 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsEquipmentInstallmentPlanReceivables | 100.0 |
| Period End | 2020-10-31 |
| Value | 67 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsEquipmentInstallmentPlanReceivables | 100.0 |
| Period End | 2020-10-31 |
| Value | 39 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssetsEquipmentInstallmentPlanReceivables | 100.0 |
| Period End | 2020-10-31 |
| Value | 39 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssetsEquipmentInstallmentPlanReceivables | 100.0 |
| Period End | 2021-03-31 |
| Value | 100.0 |
| Percentage of DebtInstrumentOriginalIssuePricePercentage | 100.0 |
| Period End | 2021-03-31 |
| Value | 100.0 |
| Percentage of DebtInstrumentOriginalIssuePricePercentage | 100.0 |
| Period End | 2021-03-31 |
| Value | 100.0 |
| Percentage of DebtInstrumentOriginalIssuePricePercentage | 100.0 |
| Period End | 2020-07-31 |
| Value | 40.0 |
| Percentage of DebtInstrumentRedemptionPricePercentageofPrincipalAmountRedeemedMaximum | 100.0 |
| Period End | 2020-07-31 |
| Value | 40.0 |
| Percentage of DebtInstrumentRedemptionPricePercentageofPrincipalAmountRedeemedMaximum | 100.0 |
| Period End | 2020-07-31 |
| Value | 106.38 |
| Percentage of DebtInstrumentRedemptionPricePercentageofPrincipalAmountRedeemedMaximum | 265.9 |
| Period End | 2020-07-31 |
| Value | 105.12 |
| Percentage of DebtInstrumentRedemptionPricePercentageofPrincipalAmountRedeemedMaximum | 262.8 |
| Period End | 2020-07-31 |
| Value | 1.0637 |
| Percentage of DebtInstrumentRedemptionPricePercentageofPrincipalAmountRedeemedMaximum | 2.7 |
| Period End | 2020-07-31 |
| Value | 1.0513 |
| Percentage of DebtInstrumentRedemptionPricePercentageofPrincipalAmountRedeemedMaximum | 2.6 |
| Period End | 2020-07-31 |
| Value | 0.4 |
| Percentage of DebtInstrumentRedemptionPricePercentageofPrincipalAmountRedeemedMaximum | 1.0 |
| Period End | 2020-07-31 |
| Value | 0.4 |
| Percentage of DebtInstrumentRedemptionPricePercentageofPrincipalAmountRedeemedMaximum | 1.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 2085 | 1520 | 1388 | 1320 |
| Percentage of DeferredTaxAssetsOperatingLossesCreditsandOtherCarryforwards | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 24 | 64 | 68 | 83 |
| Percentage of DeferredTaxLiabilitiesUnrealizedGainsandLosses | 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 | 66.0 | 0.67 | 0.66 | 0.61 | 0.6 |
| Percentage of DefinedBenefitPlanBenefitObligationRiskMitigatedbyInsurancePoliciesPercent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 68.0 | 0.66 | 0.64 | 0.69 |
| Percentage of DefinedBenefitPlanBenefitObligationRiskMitigatedbyInsurancePoliciesPercent | 103.0 | 98.5 | 97.0 | 113.1 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 100.0 | 1.0 |
| Percentage of DefinedBenefitPlanBenefitObligationRiskMitigatedbyInsurancePoliciesPercent | 151.5 | 149.3 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 100.0 | 1.0 |
| Percentage of DefinedBenefitPlanBenefitObligationRiskMitigatedbyInsurancePoliciesPercent | 151.5 | 149.3 |
| 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 | 2016-12-31 |
| Value | 38 | 37 | 35 | 35 | 37 | 36 | 36 | 36 | 35 | 35 | 36 | 33 | 37 | 32 |
| Percentage of InvestmentsAvailableforsaleFairValueDisclosure | 100.0 | 100.0 | 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 |
| Value | 2757 | 3072 | 3108 | 3329 |
| Percentage of InvestmentsinConsolidatedSubsidiariesIncludingIntercompanyBalances | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-09-30 | 2020-06-30 |
| Value | 8.9 | 0.089 |
| Percentage of ReportingUnitMeasurementInput | 100.0 | 100.0 |
| Period End | 2020-12-31 |
| Value | 10.3 |
| Percentage of ReportingUnitMeasurementInput | 0.0 |
| Period End | 2020-12-31 |
| Value | 9.8 |
| Percentage of ReportingUnitMeasurementInput | 0.0 |
| Period End | 2020-12-31 |
| Value | 8.9 |
| Percentage of ReportingUnitMeasurementInput | 0.0 |
| Period End | 2021-06-30 | 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 | 19.63 | 22.68 | 22.97 | 23.2 | 23.7 | 24.45 | 25.16 | 25.54 | 25.88 | 27.93 | 30.5 | 30.9 | 30.95 | 31.7 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableWeightedAverageExercisePrice | 100.0 | 100.0 | 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 | 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 | 19.68 | 22.7 | 22.99 | 23.23 | 23.85 | 24.67 | 25.4 | 25.78 | 26.12 | 28.24 | 30.83 | 31.2 | 31.17 | 31.78 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableWeightedAverageExercisePrice | 100.3 | 100.1 | 100.1 | 100.1 | 100.6 | 100.9 | 101.0 | 100.9 | 100.9 | 101.1 | 101.1 | 101.0 | 100.7 | 100.3 |
| Period End | 2021-06-30 |
| Value | 16.18 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice | 100.0 |
| Period End | 2021-06-30 |
| Value | 16.24 |
| Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice | 100.4 |
| 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 |
| Value | 17.2 | 17.19 | 17.33 | 17.5 | 21.8 | 21.77 | 21.92 | 22.78 | 22.77 | 22.9 | 22.98 | 26.5 | 27.95 |
| Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice | 100.0 | 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 | 2017-12-31 |
| Value | 17.22 | 17.21 | 17.35 | 17.54 | 21.87 | 21.85 | 21.99 | 22.83 | 22.82 | 22.9 | 23.02 | 26.84 | 28.36 |
| Percentage of SharebasedCompensationArrangementbySharebasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice | 100.1 | 100.1 | 100.1 | 100.2 | 100.3 | 100.4 | 100.3 | 100.2 | 100.2 | 100.0 | 100.2 | 101.3 | 101.5 |
| Period End | 2020-12-31 | 2019-12-31 | 2019-06-30 | 2018-12-31 | 2017-12-31 |
| Value | 72 | 89 | 89 | 55 | 54 |
| Percentage of AccountsReceivableNet | 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 | 2018-12-31 | 2017-12-31 |
| Value | 91 | 94 | 100 | 96 | 104 | 99 | 87 | 144 | 142 |
| Percentage of AllowanceForDoubtfulAccountsReceivable | 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 | 2016-12-31 |
| Value | 91 | 94 | 100 | 96 | 104 | 99 | 87 | 148 | 141 | 143 | 144 | 144 | 140 | 142 | 142 | 116 |
| 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 |
| Period End | 2020-12-31 | 2019-12-31 | 2019-06-30 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 41 | 38 | 38 | 37 | 36 | 35 |
| Percentage of AssetRetirementObligation | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-10-31 |
| Value | 102 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther | 100.0 |
| Period End | 2020-10-31 |
| Value | 100000.0 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets | 100.0 |
| Period End | 2020-10-31 |
| Value | 51 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables | 100.0 |
| Period End | 2020-10-31 |
| Value | 3.0 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt | 100.0 |
| Period End | 2020-10-31 |
| Value | 64 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther | 100.0 |
| Period End | 2020-10-31 |
| Value | 304 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities | 100.0 |
| Period End | 2020-10-31 |
| Value | 82 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles | 100.0 |
| Period End | 2020-10-31 |
| Value | 167 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther | 100.0 |
| Period End | 2020-10-31 |
| Value | 286 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets | 100.0 |
| Period End | 2020-10-31 |
| Value | 711 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment | 100.0 |
| Period End | 2020-10-31 |
| Value | 1930 |
| Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2019-06-30 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2018-01-01 |
| Value | 15 | 8.0 | 8.0 | 9.0 | 9.0 | 10.0 | 10.0 | 9.0 |
| Percentage of CapitalizedContractCostNet | 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 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2018-01-01 |
| Value | 82 | 22 | 9.0 | 10.0 | 10.0 | 12 | 13 |
| Percentage of ContractWithCustomerAssetNet | 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 | 2018-09-30 | 2018-06-30 | 2017-12-31 |
| Value | 370 | 372 | 401 | 400 | 405 | 397 |
| Percentage of ContractWithCustomerLiability | 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 |
| Value | 168 | 172 | 185 | 187 | 192 | 205 | 210 | 210 | 226 | 230 | 239 |
| Percentage of ContractWithCustomerLiabilityNoncurrent | 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 | 656 | 640 | 562 | 610 |
| Percentage of ContractualObligation | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 14 | 14 | 17 | 17 |
| Percentage of ContractualObligationDueAfterFifthYear | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 3200000.0 | 3300000.0 | 8200000.0 | 4400000.0 |
| Percentage of ContractualObligationDueInFifthYear | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 8.2 | 8.2 | 53 | 44 |
| Percentage of ContractualObligationDueInFourthYear | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 165 | 127 | 305 | 178 |
| Percentage of ContractualObligationDueInNextTwelveMonths | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 99 | 81 | 111 | 98 |
| Percentage of ContractualObligationDueInSecondYear | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 53 | 53 | 65 | 56 |
| Percentage of ContractualObligationDueInThirdYear | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 |
| Value | 312 | 352 | 210 |
| Percentage of ContractualObligationFutureMinimumPaymentsDueRemainderOfFiscalYear | 100.0 | 100.0 | 100.0 |
| Period End | 2020-09-30 |
| Value | 2000000.0 |
| Percentage of CreditDerivativeMaximumExposureUndiscounted | 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 | 2016-12-31 |
| Value | 8933 | 8925 | 8500 | 8599 | 8980 | 8975 | 8512 | 7214 | 7162 | 6777 | 6710 | 6648 | 6659 | 6423 | 6380 | 5984 |
| Percentage of DebtInstrumentCarryingAmount | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 2019-09-30 | 2019-06-30 |
| Value | 550 | 400 | 400 |
| Percentage of DebtInstrumentCarryingAmount | 6.5 | 5.5 | 5.6 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 1265 | 1191 |
| Percentage of DebtInstrumentCarryingAmount | 14.9 | 14.0 |
| Period End | 2020-09-30 |
| Value | 550 |
| Percentage of DebtInstrumentCarryingAmount | 6.4 |
| Period End | 2020-12-31 |
| Value | 550 |
| Percentage of DebtInstrumentCarryingAmount | 6.5 |
| Period End | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 60 | 600 | 600 |
| Percentage of DebtInstrumentCarryingAmount | 0.7 | 7.1 | 7.0 |
| 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 |
| Value | 1852 | 1854 | 1856 | 1961 | 2184 | 2193 | 2006 | 1992 | 1943 | 2357 | 2193 | 2204 | 2208 | 2235 | 2212 | 1411 |
| Percentage of DebtInstrumentCarryingAmount | 20.7 | 20.8 | 21.8 | 22.8 | 24.3 | 24.4 | 23.6 | 27.6 | 27.1 | 34.8 | 32.7 | 33.2 | 33.2 | 34.8 | 34.7 | 23.6 |
| 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 | 2016-12-31 |
| Value | 2270 | 2270 | 2270 | 2270 | 2270 | 2270 | 2120 | 2120 | 2110 | 1675 | 1781 | 1641 | 1643 | 1655 | 1648 | 2181 |
| Percentage of DebtInstrumentCarryingAmount | 25.4 | 25.4 | 26.7 | 26.4 | 25.3 | 25.3 | 24.9 | 29.4 | 29.5 | 24.7 | 26.5 | 24.7 | 24.7 | 25.8 | 25.8 | 36.4 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 |
| Value | 346 | 366 | 318 | 329 | 333 | 350 | 337 |
| Percentage of DebtInstrumentCarryingAmount | 4.1 | 4.3 | 4.7 | 5.0 | 5.0 | 5.5 | 5.3 |
| Period End | 2020-12-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2018-12-31 | 2017-12-31 |
| Value | 1220 | 1220 | 1220 | 1000 | 700 | 700 |
| Percentage of DebtInstrumentCarryingAmount | 14.4 | 14.3 | 16.9 | 14.0 | 10.4 | 11.0 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2020-01-31 | 2019-12-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 |
| Value | 1640 | 1640 | 1640 | 1640 | 1640 | 1640 | 1875 | 1875 | 1875 |
| Percentage of DebtInstrumentCarryingAmount | 19.3 | 19.1 | 18.3 | 18.3 | 0.0 | 19.3 | 27.9 | 28.2 | 28.2 |
| Period End | 2020-12-31 |
| Value | 1510 |
| Percentage of DebtInstrumentCarryingAmount | 17.8 |
| 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 | 2017-12-31 |
| Value | 126 | 119 | 119 | 120 | 123 | 123 | 124 | 123 | 127 | 125 | 124 | 0.0 |
| Percentage of DebtInstrumentCarryingAmount | 1.4 | 1.3 | 1.4 | 1.4 | 1.4 | 1.4 | 1.5 | 1.7 | 1.8 | 1.9 | 1.9 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 |
| Value | 49 | 49 | 53 |
| Percentage of DebtInstrumentCarryingAmount | 0.6 | 0.6 | 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 | 2018-12-31 |
| Value | 402 | 402 | 402 | 402 | 402 | 402 | 402 | 402 | 402 | 0.0 |
| Percentage of DebtInstrumentCarryingAmount | 4.5 | 4.5 | 4.7 | 4.7 | 4.5 | 4.5 | 4.7 | 5.6 | 5.6 | 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 |
| Value | 500 | 500 | 1000 | 1000 | 1062 | 1062 | 1000 | 922 | 922 | 942 | 942 | 982 | 982 | 982 | 982 | 942 |
| Percentage of DebtInstrumentCarryingAmount | 5.6 | 5.6 | 11.8 | 11.6 | 11.8 | 11.8 | 11.7 | 12.8 | 12.9 | 13.9 | 14.0 | 14.8 | 14.8 | 15.3 | 15.4 | 15.7 |
| Period End | 2021-03-31 | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 1000 | 1000 | 1000 | 850 | 850 |
| Percentage of DebtInstrumentCarryingAmount | 11.2 | 11.8 | 11.7 | 12.7 | 13.3 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 |
| Value | 2110 | 2110 | 1290 | 1290 | 1290 | 1200 | 1200 |
| Percentage of DebtInstrumentCarryingAmount | 23.6 | 23.6 | 15.2 | 15.0 | 14.4 | 13.4 | 14.1 |
| 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 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2017-12-31 |
| Value | 244 | 221 | 211 | 295 | 231 | 238 | 256 | 256 | 250 | 264 | 265 | 0.0 |
| Percentage of DebtInstrumentCarryingAmount | 2.9 | 2.6 | 2.4 | 3.3 | 2.7 | 3.3 | 3.6 | 3.8 | 3.7 | 4.0 | 4.0 | 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 | 1500 | 1500 | 1150 | 1150 | 1260 | 1260 | 1260 | 1260 | 1260 | 1260 | 1260 | 1400 |
| Percentage of DebtInstrumentCarryingAmount | 16.8 | 16.8 | 13.5 | 13.4 | 14.0 | 14.0 | 14.8 | 17.5 | 17.6 | 18.6 | 18.8 | 21.9 |
| 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 | 2016-12-31 |
| Value | 171 | 169 | 168 | 183 | 175 | 167 | 167 | 154 | 140 | 160 | 157 | 154 | 158 | 149 | 137 | 48 |
| Percentage of DebtInstrumentCarryingAmount | 1.9 | 1.9 | 2.0 | 2.1 | 2.0 | 1.9 | 2.0 | 2.1 | 2.0 | 2.4 | 2.3 | 2.3 | 2.4 | 2.3 | 2.2 | 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 |
| Value | 4196 | 4193 | 4192 | 4322 | 4544 | 4549 | 4197 | 4172 | 4094 | 4090 | 4032 | 3899 | 3907 | 3939 | 3900 |
| Percentage of DebtInstrumentCarryingAmount | 47.0 | 47.0 | 49.3 | 50.3 | 50.6 | 50.7 | 49.3 | 57.8 | 57.2 | 60.4 | 60.1 | 58.7 | 58.7 | 61.3 | 61.1 |
| 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 |
| Value | 126 | 119 | 119 | 120 | 123 | 123 | 124 | 123 | 127 | 125 | 124 |
| Percentage of DebtInstrumentCarryingAmount | 1.4 | 1.3 | 1.4 | 1.4 | 1.4 | 1.4 | 1.5 | 1.7 | 1.8 | 1.9 | 1.9 |
| 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 |
| Value | 8933 | 8925 | 8599 | 8980 | 8975 | 7214 | 7162 | 6777 | 6648 |
| Percentage of DebtInstrumentCarryingAmount | 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 |
| Value | 2610 | 2610 | 2290 | 2290 | 2352 | 2262 | 2200 | 922 | 922 | 942 | 942 | 982 | 982 | 982 | 982 |
| Percentage of DebtInstrumentCarryingAmount | 29.2 | 29.2 | 26.9 | 26.6 | 26.2 | 25.2 | 25.8 | 12.8 | 12.9 | 13.9 | 14.0 | 14.8 | 14.8 | 15.3 | 15.4 |
| 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 |
| Value | 404 | 404 | 404 | 405 | 405 | 405 | 405 | 402 | 402 |
| Percentage of DebtInstrumentCarryingAmount | 4.5 | 4.5 | 4.8 | 4.7 | 4.5 | 4.5 | 4.8 | 5.6 | 5.6 |
| 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 |
| Value | 1595 | 1597 | 1494 | 1461 | 1555 | 1635 | 1585 | 1594 |
| Percentage of DebtInstrumentCarryingAmount | 17.9 | 17.9 | 17.6 | 17.0 | 17.3 | 18.2 | 18.6 | 22.1 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 |
| Value | 350 | 346 | 342 |
| Percentage of DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 |
| Value | 500 |
| Percentage of DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent | 144.5 |
| Period End | 2021-03-31 |
| Value | 60 |
| Percentage of DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent | 17.3 |
| Period End | 2021-03-31 |
| Value | 500 |
| Percentage of DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent | 144.5 |
| Period End | 2021-03-31 |
| Value | 60 |
| Percentage of DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent | 17.3 |
| Period End | 2020-09-30 |
| Value | 338 |
| Percentage of DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent | 0.0 |
| Period End | 2021-03-31 |
| Value | 1000 |
| Percentage of DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent | 289.0 |
| Period End | 2020-07-31 |
| Value | 550 |
| Percentage of DebtInstrumentFaceAmount | 100.0 |
| Period End | 2020-07-31 |
| Value | 600 |
| Percentage of DebtInstrumentFaceAmount | 109.1 |
| Period End | 2020-09-30 |
| Value | 577 |
| Percentage of DebtInstrumentFairValue | 100.0 |
| Period End | 2020-09-30 |
| Value | 618 |
| Percentage of DebtInstrumentFairValue | 107.1 |
| Period End | 2020-09-30 |
| Value | 1195 |
| Percentage of DebtInstrumentFairValue | 207.1 |
| Period End | 2020-12-31 |
| Value | 1000000.0 |
| Percentage of DebtInstrumentFeeAmount | 100.0 |
| Period End | 2020-09-30 |
| Value | 1000000.0 |
| Percentage of DebtInstrumentFeeAmount | 0.0 |
| Period End | 2020-12-31 |
| Value | 6.7 |
| Percentage of DebtInstrumentMeasurementInput | 100.0 |
| Period End | 2021-07-31 | 2018-10-31 |
| Value | 62 | 147 |
| Percentage of DebtInstrumentRepurchaseAmount | 100.0 | 100.0 |
| Period End | 2021-07-31 | 2018-10-31 |
| Value | 60 | 140 |
| Percentage of DebtInstrumentRepurchasedFaceAmount | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 |
| Value | 50 | 54 | 58 |
| Percentage of DebtInstrumentUnamortizedDiscount | 100.0 | 100.0 | 100.0 |
| Period End | 2020-09-30 |
| Value | 61 |
| Percentage of DebtInstrumentUnamortizedDiscount | 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 |
| Value | 152 | 156 | 157 | 141 | 142 | 148 | 146 | 131 | 140 | 41 | 41 | 33 | 21 | 20 | 26 | -41.8 |
| Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet | 100.0 | 100.0 | 100.0 | 100.0 | 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 |
| Value | 28 | 28 | 28 | 29 | 30 | 31 | 22 | 23 | 26 | 6.8 | 5.4 | -6.4 | -9.4 | -11.2 | -6.8 |
| Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet | 18.4 | 18.5 | 18.0 | 20.9 | 21.4 | 21.3 | 15.5 | 17.7 | 18.6 | 16.6 | 13.0 | -19.0 | -44.3 | -53.8 | -25.7 |
| 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 |
| Value | 6.1 | 6.3 | 6.5 | 2.8 | 3.1 | 2.3 | 2.7 | 3.0 | 3.6 | 3.9 | 4.0 |
| Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet | 4.0 | 4.0 | 4.1 | 2.0 | 2.2 | 1.6 | 1.8 | 2.3 | 2.6 | 9.5 | 9.6 |
| 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 | 2018-09-30 |
| Value | 152 | 156 | 141 | 142 | 148 | 131 | 140 | 41 | 33 |
| Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet | 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 |
| Value | 39 | 39 | 39 | 22 | 23 | 25 | 27 | 6.9 | 7.5 | 8.2 | 8.8 | 9.4 | 10 | 10 | 11 |
| Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet | 25.7 | 25.6 | 24.9 | 15.6 | 16.4 | 17.5 | 18.5 | 5.2 | 5.3 | 20.0 | 21.2 | 28.0 | 47.6 | 51.4 | 42.6 |
| 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 |
| Value | 52 | 56 | 60 | 64 | 68 | 71 | 75 | 78 | 82 |
| Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet | 34.7 | 36.3 | 38.5 | 45.5 | 47.8 | 48.3 | 51.5 | 59.9 | 58.5 |
| 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 |
| Value | 26 | 24 | 22 | 22 | 17 | 16 | 18 | 19 |
| Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet | 17.2 | 15.5 | 14.5 | 16.1 | 12.2 | 11.3 | 12.6 | 14.8 |
| 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 |
| Value | 1210 | 1219 | 1172 | 1063 | 765 | 649 | 1113 | 1036 | 1056 | 896 | 1043 | 990 | 964 | 979 | 938 |
| Percentage of DebtInstrumentUnusedBorrowingCapacityAmount | 100.0 | 100.0 | 100.0 | 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 |
| Value | 5.1 | 5.11 | 5.22 | 5.2 | 0.0534 | 0.0576 | 0.0611 | 0.0597 | 0.0611 | 0.0638 | 0.064 | 0.0622 | 0.0618 | 0.06 | 0.0592 |
| Percentage of DebtWeightedAverageInterestRate | 100.0 | 100.0 | 100.0 | 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 |
| Value | 2.77 | 2.78 | 2.81 | 2.84 | 0.0291 | 0.0423 | 0.0491 | 0.0514 | 0.054 | 0.0552 | 0.0552 | 0.0527 | 0.0514 | 0.0495 | 0.0486 |
| Percentage of DebtWeightedAverageInterestRate | 54.3 | 54.4 | 53.8 | 54.6 | 54.5 | 73.4 | 80.4 | 86.1 | 88.4 | 86.5 | 86.2 | 84.7 | 83.2 | 82.5 | 82.1 |
| 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 |
| Value | 6.74 | 6.74 | 6.74 | 6.74 | 0.0674 | 0.0674 | 0.0681 | 0.0681 | 0.0681 | 0.0706 | 0.0716 | 0.0708 | 0.0708 | 0.0709 | 0.0709 |
| Percentage of DebtWeightedAverageInterestRate | 132.2 | 131.9 | 129.1 | 129.6 | 126.2 | 117.0 | 111.5 | 114.1 | 111.5 | 110.7 | 111.9 | 113.8 | 114.6 | 118.2 | 119.8 |
| 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 |
| Value | 8.17 | 8.55 | 8.39 | 7.73 | 0.081 | 0.0867 | 0.0984 | 0.0994 | 0.1047 | 0.1032 | 0.1003 |
| Percentage of DebtWeightedAverageInterestRate | 160.2 | 167.3 | 160.7 | 148.7 | 151.7 | 150.5 | 161.0 | 166.5 | 171.4 | 161.8 | 156.7 |
| 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 |
| Value | 2.0 | 2.0 | 2.0 | 2.0 | 0.02 | 0.02 | 0.02 | 0.02 | 0.02 |
| Percentage of DebtWeightedAverageInterestRate | 39.2 | 39.1 | 38.3 | 38.5 | 37.5 | 34.7 | 32.7 | 33.5 | 32.7 |
| 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 |
| Value | 3.85 | 3.86 | 5.14 | 5.15 | 0.0507 | 0.059 | 0.0676 | 0.0578 | 0.0615 | 0.063 | 0.0611 | 0.0614 | 0.0615 | 0.0552 | 0.0517 |
| Percentage of DebtWeightedAverageInterestRate | 75.5 | 75.5 | 98.5 | 99.0 | 94.9 | 102.4 | 110.6 | 96.8 | 100.7 | 98.7 | 95.5 | 98.7 | 99.5 | 92.0 | 87.3 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 |
| Value | 6.12 | 6.12 | 6.75 | 6.75 | 0.0675 | 0.0675 | 0.0675 |
| Percentage of DebtWeightedAverageInterestRate | 120.0 | 119.8 | 129.3 | 129.8 | 126.4 | 117.2 | 110.5 |
| 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 |
| Value | 4.78 | 4.8 | 0.0529 | 0.0516 | 0.0615 | 0.0661 | 0.0664 | 0.0672 | 0.0655 | 0.0647 | 0.0646 |
| Percentage of DebtWeightedAverageInterestRate | 91.6 | 92.3 | 99.1 | 89.6 | 100.7 | 110.7 | 108.7 | 105.3 | 102.3 | 104.0 | 104.5 |
| 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 |
| Value | 5.38 | 5.38 | 5.72 | 5.72 | 0.0688 | 0.0688 | 0.0688 | 0.0688 | 0.0688 | 0.0688 | 0.0688 |
| Percentage of DebtWeightedAverageInterestRate | 105.5 | 105.3 | 109.6 | 110.0 | 128.8 | 119.4 | 112.6 | 115.2 | 112.6 | 107.8 | 107.5 |
| 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 |
| Value | 2.31 | 2.33 | 2.5 | 3.14 | 0.0356 | 0.0405 | 0.0427 | 0.049 | 0.0498 | 0.0496 | 0.0493 | 0.0474 | 0.0469 | 0.0443 | 0.0445 |
| Percentage of DebtWeightedAverageInterestRate | 45.3 | 45.6 | 47.9 | 60.4 | 66.7 | 70.3 | 69.9 | 82.1 | 81.5 | 77.7 | 77.0 | 76.2 | 75.9 | 73.8 | 75.2 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 41 | 55 | 144 | 138 | 103 |
| 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 |
| Value | 1092 | 554 | 620 | 875 | 770 |
| Percentage of DeferredIncomeTaxLiabilities | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 16 | 2.0 | 11 |
| Percentage of DeferredTaxAssetsDeferredIncome | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 2145 | 1611 | 1531 | 1762 | 1564 |
| Percentage of DeferredTaxAssetsGross | 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 | 1628 | 1389 | 1351 | 1305 | 1299 |
| Percentage of DeferredTaxAssetsOperatingLossCarryforwards | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 29 | 28 | 51 | 41 |
| Percentage of DeferredTaxAssetsOperatingLossCarryforwards | 1.8 | 2.1 | 3.8 | 3.1 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 48 | 45 |
| Percentage of DeferredTaxAssetsOperatingLossCarryforwards | 3.0 | 3.3 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 28 | 53 | 54 | 22 |
| Percentage of DeferredTaxAssetsOperatingLossCarryforwards | 1.7 | 3.9 | 4.1 | 1.7 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 50 | 10 | 11 | 23 |
| Percentage of DeferredTaxAssetsOperatingLossCarryforwards | 3.1 | 0.7 | 0.9 | 1.8 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 39 | 6.1 | 6.3 | 6.6 |
| Percentage of DeferredTaxAssetsOperatingLossCarryforwards | 2.4 | 0.4 | 0.5 | 0.5 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 146 | 148 | 148 | 141 |
| Percentage of DeferredTaxAssetsOperatingLossCarryforwards | 9.0 | 10.7 | 11.0 | 10.8 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 267 | 230 | 236 | 223 |
| Percentage of DeferredTaxAssetsOperatingLossCarryforwards | 16.4 | 16.6 | 17.5 | 17.1 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 34 | 29 | 37 | 31 |
| Percentage of DeferredTaxAssetsOperatingLossCarryforwards | 2.1 | 2.1 | 2.8 | 2.4 |
| Period End | 2020-12-31 |
| Value | 27 |
| Percentage of DeferredTaxAssetsOperatingLossCarryforwards | 1.7 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 956 | 837 | 804 | 814 |
| Percentage of DeferredTaxAssetsOperatingLossCarryforwards | 58.7 | 60.2 | 59.5 | 62.4 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 2.4 | 2.3 | 3.7 | 117 | 101 |
| Percentage of DeferredTaxAssetsOther | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 15 | 23 | 68 | 76 |
| Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities | 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 | 618 | 168 | 197 | 300 | 237 |
| Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets | 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 | 205 | 224 | 231 | 232 | 341 |
| Percentage of DeferredTaxLiabilitiesInvestments | 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 | 266 | 158 | 173 | 301 | 174 |
| Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 2.4 | 3.1 | 18 | 16 |
| Percentage of DeferredTaxLiabilitiesUndistributedForeignEarnings | 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 | 2470 | 2302 | 2084 | 2016 | 1939 |
| Percentage of DefinedBenefitPlanAccumulatedBenefitObligation | 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 |
| Value | 20 | 8.6 | 10 | -19.8 | -9.7 | 0.0 |
| Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | -62.0 | -50.0 | -28.6 | 98 | -34.9 |
| Percentage of DefinedBenefitPlanAmountsRecognizedInBalanceSheet | 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 | 210 | 184 | 177 | 143 | 19 |
| Percentage of DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent | 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 | 2.4 | 0.03 | 0.036 | 0.03 | 0.03 |
| Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate | 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 | 1.0 | 0.008 | 0.007 | 0.006 | 0.007 |
| Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease | 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 | 2016-05-16 |
| Value | 2480 | 2313 | 2096 | 2020 | 1944 | 0.0 |
| Percentage of DefinedBenefitPlanBenefitObligation | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 |
| Period End | 2020-12-31 |
| Value | 701 |
| Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter | 100.0 |
| Period End | 2020-12-31 |
| Value | 116 |
| Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths | 100.0 |
| Period End | 2020-12-31 |
| Value | 130 |
| Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive | 100.0 |
| Period End | 2020-12-31 |
| Value | 124 |
| Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour | 100.0 |
| Period End | 2020-12-31 |
| Value | 123 |
| Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree | 100.0 |
| Period End | 2020-12-31 |
| Value | 118 |
| Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo | 100.0 |
| Period End | 2020-12-31 |
| Value | 9000000.0 |
| Percentage of DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2016-05-16 |
| Value | 2418 | 2263 | 2068 | 2118 | 1909 | 0.0 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 |
| Value | 182 | 155 | 132 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 7.5 | 6.8 | 6.4 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 1360 | 1285 | 1119 | 1147 | 1006 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 56.2 | 56.8 | 54.1 | 54.2 | 52.7 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 784 | 646 | 518 | 177 | 288 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 32.4 | 28.6 | 25.1 | 8.4 | 15.1 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 30 | 34 | 24 | 59 | 12 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 1.2 | 1.5 | 1.2 | 2.8 | 0.7 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 212 | 259 | 369 | 572 | 436 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 8.8 | 11.4 | 17.9 | 27.0 | 22.9 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 4.9 | 9.9 | 9.7 | 11 | 11 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 0.2 | 0.4 | 0.5 | 0.6 | 0.6 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 27 | 28 | 26 | 26 | 38 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 1.1 | 1.2 | 1.3 | 1.3 | 2.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 141 | 142 | 91 | 0.0 | 0.0 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 5.8 | 6.3 | 4.4 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 1218 | 1143 | 1028 | 1147 | 1006 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 50.4 | 50.5 | 49.7 | 54.2 | 52.7 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 771 | 633 | 504 | 175 | 287 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 31.9 | 28.0 | 24.4 | 8.3 | 15.1 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 12 | 13 | 14 | 2.1 | 0.8 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 0.5 | 0.6 | 0.7 | 0.1 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 30 | 34 | 24 | 59 | 12 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 1.2 | 1.5 | 1.2 | 2.8 | 0.7 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 155 | 157 | 207 | 347 | 436 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 6.4 | 6.9 | 10.0 | 16.4 | 22.9 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 57 | 102 | 161 | 225 | 0.0 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 2.4 | 4.5 | 7.8 | 10.6 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 4.9 | 9.9 | 9.7 | 11 | 11 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 0.2 | 0.4 | 0.5 | 0.6 | 0.6 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 12 | 12 | 9.9 | 13 | 13 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 0.5 | 0.6 | 0.5 | 0.7 | 0.7 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 1.1 | 1.6 | 1.2 | 0.9 | 0.9 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 14 | 13 | 14 | 11 | 24 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 0.6 | 0.6 | 0.7 | 0.6 | 1.3 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 968 | 837 | 746 | 607 | 757 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 40.1 | 37.0 | 36.1 | 28.7 | 39.7 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 211 | 258 | 268 | 340 | 108 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 8.8 | 11.4 | 13.0 | 16.1 | 5.7 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 |
| Value | 1237 | 1167 | 1052 | 1171 | 1042 | 0.0 |
| Percentage of DefinedBenefitPlanFairValueOfPlanAssets | 51.2 | 51.6 | 50.9 | 55.3 | 54.6 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | -62.0 | -50.0 | -28.6 | 98 | -34.9 |
| Percentage of DefinedBenefitPlanFundedStatusOfPlan | 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 | 100.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations | 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 | 56.2 | 56.8 | 0.541 | 0.542 | 0.527 |
| Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations | 56.2 | 5680.0 | 54.1 | 54.2 | 52.7 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 32.4 | 28.6 | 0.251 | 0.084 | 0.151 |
| Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations | 32.4 | 2860.0 | 25.1 | 8.4 | 15.1 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 1.2 | 1.5 | 0.012 | 0.028 | 0.007 |
| Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations | 1.2 | 150.0 | 1.2 | 2.8 | 0.7 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 8.9 | 11.5 | 0.179 | 0.27 | 0.229 |
| Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations | 8.9 | 1150.0 | 17.9 | 27.0 | 22.9 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 0.2 | 0.4 | 0.004 | 0.006 | 0.006 |
| Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations | 0.2 | 40.0 | 0.4 | 0.6 | 0.6 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 |
| Value | 1.1 | 1.2 | 0.013 | 0.012 | 0.02 |
| Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations | 1.1 | 120.0 | 1.3 | 1.2 | 2.0 |
| 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 |
| Value | 22 | 21 | 5.1 | 19 | 21 | 312 | 160 | 102 | 30 | 57 | 126 | 180 | 152 | 117 | 41 | 146 |
| Percentage of DerivativeAssets | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 2016-12-31 |
| Value | 19 | 21 | 5.1 | 15 | 13 | 297 | 150 | 93 | 18 | 46 | 112 | 173 | 134 | 117 | 41 | 145 |
| Percentage of DerivativeAssets | 86.0 | 99.5 | 100.0 | 81.7 | 63.2 | 95.5 | 93.9 | 90.5 | 62.8 | 80.2 | 88.9 | 96.1 | 88.3 | 99.7 | 100.0 | 99.8 |
| Period End | 2021-06-30 | 2021-03-31 | 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 |
| Value | 3.2 | 0.1 | 3.5 | 7.8 | 14 | 9.8 | 9.8 | 11 | 11 | 14 | 7.0 | 17 | 0.4 | 0.0 | 0.3 |
| Percentage of DerivativeAssets | 14.0 | 0.5 | 18.3 | 36.8 | 4.5 | 6.1 | 9.5 | 37.2 | 19.8 | 11.1 | 3.9 | 11.7 | 0.3 | 0.0 | 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 | 2016-12-31 |
| Value | 1.9 | 0.7 | 0.7 | 6.3 | 10 | 34 | 33 | 24 | 18 | 26 | 44 | 25 | 25 | 16 | 2.9 | 7.2 |
| Percentage of DerivativeAssetsCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 2016-12-31 |
| Value | 0.5 | 0.6 | 0.7 | 3.4 | 3.2 | 20 | 23 | 14 | 6.8 | 14 | 30 | 18 | 8.0 | 16 | 2.9 | 6.9 |
| Percentage of DerivativeAssetsCurrent | 26.3 | 85.7 | 100.0 | 54.0 | 31.1 | 59.1 | 70.5 | 59.7 | 37.8 | 56.2 | 68.5 | 72.2 | 31.0 | 100.0 | 100.0 | 95.8 |
| Period End | 2021-06-30 | 2021-03-31 | 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 |
| Value | 1.4 | 0.1 | 2.9 | 7.1 | 14 | 9.8 | 9.8 | 11 | 11 | 14 | 7.0 | 17 | 0.0 | 0.0 | 0.3 |
| Percentage of DerivativeAssetsCurrent | 73.7 | 14.3 | 46.0 | 68.9 | 40.9 | 29.5 | 40.3 | 62.2 | 43.8 | 31.5 | 27.8 | 69.0 | 0.0 | 0.0 | 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 | 2016-12-31 |
| Value | 20 | 20 | 4.4 | 12 | 10 | 277 | 126 | 78 | 12 | 31 | 82 | 155 | 126 | 101 | 38 | 139 |
| Percentage of DerivativeAssetsNoncurrent | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 2016-12-31 |
| Value | 19 | 20 | 4.4 | 12 | 10 | 277 | 126 | 78 | 12 | 31 | 82 | 155 | 126 | 100 | 38 | 139 |
| Percentage of DerivativeAssetsNoncurrent | 91.4 | 100.0 | 100.0 | 95.3 | 93.6 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 99.6 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 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 |
| Value | 1.8 | 0.6 | 0.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 0.0 | 0.0 |
| Percentage of DerivativeAssetsNoncurrent | 8.6 | 4.7 | 6.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2019-12-31 |
| Value | 69 | 77 | 90 | 35 |
| Percentage of DerivativeInstrumentsAndHedgesLiabilities | 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 | 2019-06-30 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2016-12-31 |
| Value | 236 | 318 | 493 | 394 | 334 | 284 | 135 | 127 | 65 | 132 | 102 | 200 | 94 | 57 |
| Percentage of DerivativeLiabilities | 100.0 | 100.0 | 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 | 2016-12-31 |
| Value | 230 | 304 | 474 | 392 | 333 | 284 | 134 | 155 | 127 | 76 | 65 | 131 | 101 | 187 | 81 | 53 |
| Percentage of DerivativeLiabilities | 97.4 | 95.6 | 96.2 | 99.5 | 99.9 | 100.0 | 99.6 | 0.0 | 99.7 | 0.0 | 100.0 | 99.1 | 99.1 | 93.3 | 86.4 | 92.7 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-06-30 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2016-12-31 |
| Value | 6.1 | 14 | 18 | 2.0 | 0.3 | 0.0 | 0.5 | 0.4 | 0.0 | 1.2 | 0.9 | 13 | 12 | 4.2 |
| Percentage of DerivativeLiabilities | 2.6 | 4.4 | 3.8 | 0.5 | 0.1 | 0.0 | 0.4 | 0.3 | 0.0 | 0.9 | 0.9 | 6.7 | 13.6 | 7.3 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-06-30 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2016-12-31 |
| Value | 69 | 77 | 90 | 73 | 71 | 69 | 35 | 32 | 23 | 73 | 61 | 75 | 42 | 28 |
| Percentage of DerivativeLiabilitiesCurrent | 100.0 | 100.0 | 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 | 2016-12-31 |
| Value | 63 | 64 | 71 | 72 | 70 | 69 | 34 | 34 | 32 | 28 | 23 | 72 | 60 | 62 | 29 | 24 |
| Percentage of DerivativeLiabilitiesCurrent | 91.2 | 83.3 | 79.2 | 97.7 | 99.6 | 100.0 | 98.6 | 0.0 | 98.8 | 0.0 | 100.0 | 98.4 | 98.5 | 82.3 | 69.7 | 85.4 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-06-30 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2016-12-31 |
| Value | 6.1 | 13 | 18 | 1.7 | 0.3 | 0.0 | 0.5 | 0.4 | 0.0 | 1.2 | 0.9 | 13 | 12 | 4.2 |
| Percentage of DerivativeLiabilitiesCurrent | 8.8 | 16.7 | 20.8 | 2.3 | 0.4 | 0.0 | 1.4 | 1.2 | 0.0 | 1.6 | 1.5 | 17.7 | 30.3 | 14.6 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-06-30 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2016-12-31 |
| Value | 166 | 240 | 403 | 320 | 263 | 215 | 99 | 94 | 41 | 59 | 40 | 125 | 51 | 28 |
| Percentage of DerivativeLiabilitiesNoncurrent | 100.0 | 100.0 | 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 | 2016-12-31 |
| Value | 166 | 239 | 403 | 320 | 263 | 215 | 99 | 120 | 94 | 47 | 41 | 59 | 40 | 125 | 51 | 28 |
| Percentage of DerivativeLiabilitiesNoncurrent | 100.0 | 99.6 | 100.0 | 99.9 | 100.0 | 100.0 | 100.0 | 0.0 | 100.0 | 0.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-06-30 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2016-12-31 |
| Value | 1.0 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of DerivativeLiabilitiesNoncurrent | 0.4 | 0.1 | 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 |
| Value | 1510 | 1510 | 1510 | 1510 | 1510 | 1510 | 2340 | 3280 | 1640 |
| Percentage of DerivativeNotionalAmount | 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 |
| Value | 2250 | 2250 | 2250 | 2350 | 2562 | 2425 | 2555 | 2555 | 2555 |
| Percentage of DerivativeNotionalAmount | 149.0 | 149.0 | 149.0 | 155.6 | 169.7 | 160.6 | 109.2 | 77.9 | 155.8 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 14 | 8.8 |
| Percentage of DerivativeNotionalAmount | 1.0 | 0.6 |
| 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 |
| Value | 500 | 500 | 1000 | 1000 | 1000 | 1000 | 1590 | 922 | 922 |
| Percentage of DerivativeNotionalAmount | 33.1 | 33.1 | 66.2 | 66.2 | 66.2 | 66.2 | 67.9 | 28.1 | 56.2 |
| 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 |
| Value | 500 | 500 | 1000 | 1000 | 1062 | 1000 | 1000 | 850 | 850 |
| Percentage of DerivativeNotionalAmount | 33.1 | 33.1 | 66.2 | 66.2 | 70.4 | 66.2 | 42.7 | 25.9 | 51.8 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 244 | 230 |
| Percentage of DerivativeNotionalAmount | 16.2 | 15.3 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 |
| Value | 198 | 179 | 171 | 165 | 187 | 193 | 207 |
| Percentage of DerivativeNotionalAmount | 13.1 | 11.9 | 11.4 | 10.9 | 8.0 | 5.9 | 12.7 |
| 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 |
| Value | 197014 | 197014 | 1817 | 13817 | 13817 | 13817 | 13817 | 13817 | 13817 |
| Percentage of DerivativeNotionalAmount | 13047.3 | 13047.3 | 120.4 | 915.1 | 915.1 | 915.1 | 590.5 | 421.3 | 842.5 |
| 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 |
| Value | 56 | 56 | 14 | 108 | 108 | 108 | 108 | 108 | 108 |
| Percentage of DerivativeNotionalAmount | 3.7 | 3.7 | 0.9 | 7.2 | 7.2 | 7.2 | 4.6 | 3.3 | 6.6 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 |
| Value | 197014 | 180000 | 180000 | 180000 | 180000 | 180000 | 180000 |
| Percentage of DerivativeNotionalAmount | 13047.3 | 11920.5 | 11920.5 | 11920.5 | 7692.3 | 5487.8 | 10975.6 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 1096693 | 1145413 |
| Percentage of DerivativeNotionalAmount | 72628.7 | 75855.2 |
| Period End | 2021-06-30 | 2021-03-31 |
| Value | 1380 | 1440 |
| Percentage of DerivativeNotionalAmount | 91.4 | 95.4 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 |
| Value | 933800 | 933800 | 933800 | 854020 | 854020 |
| Percentage of DerivativeNotionalAmount | 61841.1 | 61841.1 | 61841.1 | 56557.6 | 36496.6 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 |
| Value | 1150 | 1150 | 1150 | 1260 | 1260 |
| Percentage of DerivativeNotionalAmount | 76.2 | 76.2 | 76.2 | 83.4 | 53.8 |
| Period End | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 |
| Value | 205 | 247 | 132 | 90 | 135 | 147 | 164 |
| Percentage of DerivativeNotionalAmount | 13.6 | 16.4 | 8.7 | 6.0 | 5.8 | 4.5 | 10.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 122 | 60 | 20 | 0.0 |
| Percentage of DueFromOtherRelatedPartiesCurrent | 100.0 | 100.0 | 100.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 |
| Value | 25 | 16 | 0.0 |
| Percentage of DueToRelatedPartiesCurrent | 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 | 2018-12-31 |
| Value | 92 | 68 | 97 | 80 | 71 | 68 | 88 | 84 | 86 |
| Percentage of EmployeeRelatedLiabilitiesCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 |
| Value | 58 |
| Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2019-09-30 | 2018-12-31 | 2018-09-30 | 2017-12-31 |
| Value | 77 | 77 | 77 | 77 | 77 | 93 |
| Percentage of EquityMethodInvestments | 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 | 2017-12-31 | 2016-12-31 |
| Value | 1.0 | 14 | 17 | 20 | 30 | 24 | 31 | 35 | 36 | 31 | 34 | 27 | 21 | 10 |
| Percentage of FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue | 100.0 | 100.0 | 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 | 2018-12-31 |
| Value | 12 | 13 | 13 | 1.8 | 2.4 | 2.9 | 3.6 | 4.6 | 10 | 12 |
| 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 | 2020-12-31 |
| Value | 16 |
| Percentage of FinancingReceivableAllowanceForCreditLosses | 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 | 2016-12-31 |
| Value | 949 | 904 | 855 | 808 | 769 | 730 | 683 | 678 | 628 | 580 | 530 | 479 | 433 | 391 | 298 | 167 |
| 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 |
| 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 | 2016-12-31 |
| Value | 813 | 768 | 726 | 689 | 645 | 643 | 596 | 551 | 504 | 456 | 414 | 374 | 284 | 160 |
| Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization | 95.1 | 95.1 | 94.3 | 94.3 | 94.4 | 94.9 | 94.9 | 94.9 | 95.1 | 95.3 | 95.4 | 95.6 | 95.1 | 95.4 |
| 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 |
| Value | 42 | 39 | 43 | 41 | 38 | 34 | 32 | 29 | 26 | 22 | 19 | 17 | 14 |
| Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization | 4.9 | 4.9 | 5.7 | 5.7 | 5.6 | 5.1 | 5.1 | 5.1 | 4.9 | 4.7 | 4.6 | 4.4 | 4.9 |
| Period End | 2020-12-31 |
| Value | 192 |
| Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive | 100.0 |
| Period End | 2020-12-31 |
| Value | 184 |
| Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths | 100.0 |
| Period End | 2020-12-31 |
| Value | 65 |
| Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive | 100.0 |
| Period End | 2020-12-31 |
| Value | 108 |
| Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour | 100.0 |
| Period End | 2020-12-31 |
| Value | 143 |
| Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree | 100.0 |
| Period End | 2020-12-31 |
| Value | 164 |
| Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo | 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 | 2016-12-31 |
| Value | 1704 | 1709 | 1714 | 1633 | 1646 | 1651 | 1653 | 1665 | 1697 | 1701 | 1696 | 1624 | 1632 | 1643 | 1614 | 1402 |
| 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 |
| 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 |
| Value | 1547 | 1551 | 1554 | 1473 | 1477 | 1481 | 1482 | 1495 | 1510 | 1513 | 1509 | 1444 | 1450 | 1459 | 1415 | 1303 |
| Percentage of FiniteLivedIntangibleAssetsGross | 90.8 | 90.7 | 90.7 | 90.2 | 89.7 | 89.7 | 89.7 | 89.8 | 89.0 | 89.0 | 89.0 | 88.9 | 88.8 | 88.8 | 87.6 | 92.9 |
| 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 | 2016-12-31 |
| Value | 157 | 158 | 159 | 160 | 169 | 169 | 170 | 169 | 186 | 187 | 186 | 180 | 182 | 184 | 199 | 99 |
| Percentage of FiniteLivedIntangibleAssetsGross | 9.2 | 9.3 | 9.3 | 9.8 | 10.3 | 10.3 | 10.3 | 10.2 | 11.0 | 11.0 | 11.0 | 11.1 | 11.2 | 11.2 | 12.4 | 7.1 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2019-12-31 | 2019-09-30 | 2018-12-31 | 2017-12-31 |
| Value | 1624 | 1624 | 1624 | 1624 | 1624 | 1348 | 1348 | 1166 | 556 |
| Percentage of GoodwillImpairedAccumulatedImpairmentLoss | 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 | 2016-12-31 |
| Value | 141 | 109 | 132 | 118 | 138 | 115 | 132 | 80 | 108 | 73 | 118 | 74 | 114 | 58 | 115 | 115 |
| Percentage of InterestPayableCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 66 | 64 | 78 | 35 |
| Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 |
| Value | 36 | 58 | 12 |
| Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 |
| Value | 1837 | 2000 | 2187 | 2198 | 2202 | 2229 | 2198 |
| Percentage of LineOfCredit | 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 | 2019-12-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 |
| Value | 345 | 3.8 | 24 | 364 | 317 | 328 | 332 | 349 | 337 |
| Percentage of LineOfCredit | 18.8 | 0.0 | 0.0 | 18.2 | 14.5 | 14.9 | 15.1 | 15.7 | 15.3 |
| Period End | 2020-09-30 | 2020-06-30 | 2019-12-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 |
| Value | 100 | 312 | 0.0 | 0.0 | 0.0 | 0.0 | 10.0 | 50 |
| Percentage of LineOfCredit | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 2.3 |
| Period End | 2020-12-31 |
| Value | 1492 |
| Percentage of LineOfCredit | 81.2 |
| Period End | 2020-12-31 | 2020-06-30 | 2019-12-31 | 2018-12-31 |
| Value | 113 | 0.0 | 122 | 120 |
| Percentage of LineOfCredit | 6.2 | 0.0 | 6.1 | 5.5 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 |
| Value | 44 | 47 | 51 |
| Percentage of LineOfCredit | 2.4 | 2.4 | 2.4 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 |
| Value | 68 | 74 | 68 |
| Percentage of LineOfCredit | 3.7 | 3.7 | 3.1 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 985 | 982 | 933 | 971 |
| Percentage of LineOfCredit | 53.6 | 49.1 | 42.7 | 44.2 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 985 | 982 | 842 | 840 |
| Percentage of LineOfCredit | 53.6 | 49.1 | 38.5 | 38.2 |
| Period End | 2020-09-30 | 2020-06-30 |
| Value | 103 | 399 |
| Percentage of LineOfCredit | 0.0 | 0.0 |
| Period End | 2020-12-31 |
| Value | 185 |
| Percentage of LineOfCreditFacilityMaximumBorrowingCapacity | 100.0 |
| Period End | 2020-09-30 | 2020-06-30 |
| Value | 125 | 62 |
| Percentage of LineOfCreditFacilityRemainingBorrowingCapacity | 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 |
| Value | 774 | 774 | 769 | 665 | 433 | 426 | 728 | 735 | 750 | 590 | 760 | 760 | 756 | 746 | 706 |
| Percentage of LineOfCreditFacilityRemainingBorrowingCapacity | 0.0 | 0.0 | 0.0 | 532.6 | 692.8 | 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 | 2020-09-30 | 2020-06-30 | 2019-12-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 |
| Value | 144 | 140 | 120 | 103 | 135 | 135 | 131 | 131 | 131 |
| Percentage of LineOfCreditFacilityRemainingBorrowingCapacity | 0.0 | 112.6 | 192.8 | 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 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 |
| Value | 625 | 525 | 312 | 625 | 625 | 625 | 625 | 625 | 615 | 575 |
| Percentage of LineOfCreditFacilityRemainingBorrowingCapacity | 0.0 | 420.0 | 500.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 |
| Value | 50 |
| Percentage of LineOfCreditFacilityRemainingBorrowingCapacity | 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 |
| Value | 7.0 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| Percentage of LineOfCreditFacilityRemainingBorrowingCapacity | 0.0 | 0.0 | 0.0 | 12.0 | 24.0 | 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 |
| Value | 167 | 167 | 125 | 125 | 62 | 62 | 125 | 40 | 40 | 40 | 40 | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of LineOfCreditFacilityRemainingBorrowingCapacity | 0.0 | 0.0 | 0.0 | 100.0 | 100.0 | 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 |
| Value | 125 | 125 | 40 |
| Percentage of LineOfCreditFacilityRemainingBorrowingCapacity | 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 | 261 | 262 | 263 | 257 | 254 | 145 | 244 | 246 | 251 | 251 | 228 | 230 | 207 |
| Percentage of LineOfCreditFacilityRemainingBorrowingCapacity | 0.0 | 0.0 | 0.0 | 205.9 | 407.7 | 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 | 2018-09-30 | 2018-06-30 |
| Value | 45000 | 45000 | 30000 | 30000 | 15000 |
| Percentage of LineOfCreditFacilityRemainingBorrowingCapacity | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 |
| Value | 200 | 185 | 185 | 185 | 185 |
| Percentage of LineOfCreditFacilityRemainingBorrowingCapacity | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-09-30 | 2020-06-30 |
| Value | 1063 | 765 |
| Percentage of LineOfCreditFacilityRemainingBorrowingCapacity | 850.6 | 1224.5 |
| 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 | 2016-12-31 |
| Value | 164 | 162 | 161 | 284 | 186 | 281 | 180 | 181 | 172 | 365 | 302 | 381 | 395 | 212 | 263 | 150 |
| Percentage of LongTermDebtAndCapitalLeaseObligationsCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 2016-12-31 |
| Value | 8794 | 8782 | 8357 | 8459 | 8841 | 8829 | 8370 | 7087 | 7033 | 6747 | 6682 | 6629 | 6652 | 6419 | 6371 | 6047 |
| Percentage of LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 2016-12-31 |
| Value | 9237 | 9210 | 8815 | 8659 | 8839 | 8252 | 8820 | 7348 | 7269 | 6818 | 6556 | 6697 | 6687 | 6508 | 6534 | 6195 |
| Percentage of LongTermDebtFairValue | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 2016-12-31 |
| Value | 1828 | 1832 | 1834 | 1904 | 2084 | 2054 | 2017 | 1999 | 1946 | 2348 | 2135 | 2214 | 2207 | 2243 | 2216 | 1427 |
| Percentage of LongTermDebtFairValue | 19.8 | 19.9 | 20.8 | 22.0 | 23.6 | 24.9 | 22.9 | 27.2 | 26.8 | 34.4 | 32.6 | 33.1 | 33.0 | 34.5 | 33.9 | 23.0 |
| 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 |
| Value | 2403 | 2409 | 2435 | 2362 | 2277 | 1987 | 2270 | 2213 | 2176 | 1706 | 1724 | 1677 | 1655 | 1712 | 1749 | 2319 |
| Percentage of LongTermDebtFairValue | 26.0 | 26.2 | 27.6 | 27.3 | 25.8 | 24.1 | 25.7 | 30.1 | 29.9 | 25.0 | 26.3 | 25.1 | 24.8 | 26.3 | 26.8 | 37.4 |
| 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 | 2017-12-31 |
| Value | 126 | 119 | 119 | 117 | 119 | 114 | 123 | 122 | 126 | 124 | 122 | 0.0 |
| Percentage of LongTermDebtFairValue | 1.4 | 1.3 | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.7 | 1.7 | 1.8 | 1.9 | 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 | 2018-12-31 |
| Value | 408 | 396 | 381 | 329 | 319 | 327 | 430 | 403 | 403 | 0.0 |
| Percentage of LongTermDebtFairValue | 4.4 | 4.3 | 4.3 | 3.8 | 3.6 | 4.0 | 4.9 | 5.5 | 5.6 | 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 |
| Value | 500 | 500 | 1002 | 1001 | 1050 | 979 | 1012 | 919 | 918 | 931 | 905 | 963 | 951 | 951 | 951 | 935 |
| Percentage of LongTermDebtFairValue | 5.4 | 5.4 | 11.4 | 11.6 | 11.9 | 11.9 | 11.5 | 12.5 | 12.6 | 13.7 | 13.8 | 14.4 | 14.2 | 14.6 | 14.6 | 15.1 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 |
| Value | 2237 | 2212 | 1389 | 1347 | 1318 | 1197 | 1278 |
| Percentage of LongTermDebtFairValue | 24.2 | 24.0 | 15.8 | 15.6 | 14.9 | 14.5 | 14.5 |
| 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 | 2017-12-31 |
| Value | 243 | 217 | 205 | 273 | 229 | 236 | 253 | 253 | 245 | 264 | 265 | 0.0 |
| Percentage of LongTermDebtFairValue | 2.8 | 2.5 | 2.3 | 3.3 | 2.6 | 3.2 | 3.5 | 3.7 | 3.7 | 3.9 | 4.0 | 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 | 1560 | 1570 | 1239 | 1195 | 1288 | 1150 | 1290 | 1299 | 1303 | 1294 | 1265 | 1479 |
| Percentage of LongTermDebtFairValue | 16.9 | 17.1 | 14.1 | 13.8 | 14.6 | 13.9 | 14.6 | 17.7 | 17.9 | 19.0 | 19.3 | 22.6 |
| 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 | 2016-12-31 |
| Value | 171 | 169 | 168 | 183 | 175 | 167 | 167 | 154 | 140 | 160 | 157 | 154 | 158 | 149 | 137 | 48 |
| Percentage of LongTermDebtFairValue | 1.9 | 1.8 | 1.9 | 2.1 | 2.0 | 2.0 | 1.9 | 2.1 | 1.9 | 2.4 | 2.4 | 2.3 | 2.4 | 2.3 | 2.1 | 0.8 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2018-06-30 | 2018-03-31 | 2017-12-31 |
| Value | 7222 | 5965 | 4342 | 3980 | 3981 | 4038 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive | 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 |
| Value | 3284 | 3284 | 3782 | 3782 | 4069 | 4069 | 3765 | 3764 | 3544 | 3079 | 3082 | 2580 | 2580 | 2581 | 2545 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive | 0.0 | 0.0 | 52.4 | 0.0 | 0.0 | 0.0 | 63.1 | 0.0 | 0.0 | 0.0 | 71.0 | 0.0 | 64.8 | 64.8 | 63.0 |
| 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 |
| Value | 7394 | 7394 | 7222 | 6359 | 6269 | 3764 | 3544 | 3079 | 3980 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive | 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 |
| Value | 2610 | 2610 | 2290 | 2290 | 2290 | 2200 | 2200 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 92 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive | 0.0 | 0.0 | 31.7 | 0.0 | 0.0 | 0.0 | 36.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.3 |
| 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 |
| Value | 1500 | 1500 | 1150 | 1150 | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive | 0.0 | 0.0 | 15.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2018-06-30 | 2018-03-31 | 2017-12-31 |
| Value | 160 | 178 | 292 | 293 | 257 | 256 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths | 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 |
| Value | 39 | 29 | 59 | 67 | 51 | 148 | 84 | 48 | 33 | 27 | 191 | 242 | 243 | 234 | 159 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths | 0.0 | 0.0 | 37.4 | 0.0 | 0.0 | 0.0 | 47.3 | 0.0 | 0.0 | 0.0 | 65.5 | 0.0 | 83.1 | 91.1 | 62.1 |
| 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 |
| Value | 88 | 54 | 132 | 92 | 157 | 121 | 73 | 40 | 305 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths | 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 |
| Value | 0.6 | 0.6 | 0.5 | 0.5 | 2.0 | 1.9 | 0.3 | 0.0 | 0.0 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths | 0.0 | 0.0 | 0.3 | 0.0 | 0.0 | 0.0 | 0.2 | 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 |
| Value | 48 | 24 | 99 | 64 | 39 | 7.9 | 93 | 72 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths | 0.0 | 0.0 | 62.2 | 0.0 | 0.0 | 0.0 | 52.5 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2018-06-30 | 2018-03-31 | 2017-12-31 |
| Value | 146 | 1740 | 486 | 364 | 206 | 1625 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive | 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 |
| Value | 500 | 500 | 146 | 103 | 103 | 3.3 | 77 | 53 | 3.0 | 7.3 | 120 | 120 | 113 | 113 | 775 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 | 4.4 | 0.0 | 0.0 | 0.0 | 24.7 | 0.0 | 31.2 | 55.2 | 47.7 |
| 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 |
| Value | 500 | 500 | 103 | 165 | 65 | 1716 | 1665 | 1267 | 370 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive | 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 | 2018-06-30 | 2018-03-31 | 2017-12-31 |
| Value | 584 | 389 | 1440 | 1722 | 1615 | 134 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour | 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 |
| Value | 144 | 144 | 62 | 70 | 88 | 85 | 125 | 123 | 123 | 116 | 489 | 764 | 765 | 765 | 134 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour | 0.0 | 0.0 | 10.6 | 0.0 | 0.0 | 0.0 | 32.3 | 0.0 | 0.0 | 0.0 | 34.0 | 0.0 | 44.4 | 47.4 | 100.0 |
| Period End | 2020-12-31 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 |
| Value | 119 | 0.0 | 0.0 | 124 | 123 | 127 | 125 | 0.0 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour | 20.5 | 0.0 | 0.0 | 32.1 | 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 |
| Value | 144 | 144 | 473 | 1750 | 1840 | 461 | 475 | 486 | 1721 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour | 0.0 | 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 |
| Value | 403 | 402 | 402 | 402 | 0.8 | 0.0 | 0.0 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour | 68.9 | 0.0 | 0.0 | 0.0 | 0.2 | 0.0 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2018-06-30 | 2018-03-31 | 2017-12-31 |
| Value | 270 | 112 | 124 | 125 | 125 | 79 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree | 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 |
| Value | 60 | 61 | 124 | 135 | 157 | 150 | 18 | 14 | 224 | 489 | 124 | 124 | 125 | 125 | 39 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree | 0.0 | 0.0 | 45.9 | 0.0 | 0.0 | 0.0 | 16.0 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 100.0 | 100.0 | 49.4 |
| Period End | 2021-06-30 | 2021-03-31 | 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 | 126 | 119 | 120 | 123 | 123 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree | 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 |
| Value | 590 | 584 | 388 | 406 | 395 | 961 | 1178 | 1443 | 124 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree | 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 |
| Value | 402 | 403 | 0.8 | 0.8 | 0.1 | 0.1 | 0.7 | 0.0 | 0.0 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree | 0.0 | 0.0 | 0.3 | 0.0 | 0.0 | 0.0 | 0.6 | 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 | 145 | 132 | 126 | 121 | 93 | 96 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree | 53.8 | 0.0 | 0.0 | 0.0 | 83.4 | 0.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2018-06-30 | 2018-03-31 | 2017-12-31 |
| Value | 117 | 127 | 24 | 64 | 64 | 246 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo | 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 |
| Value | 124 | 124 | 17 | 26 | 24 | 16 | 126 | 124 | 124 | 124 | 24 | 23 | 24 | 24 | 246 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo | 0.0 | 0.0 | 15.0 | 0.0 | 0.0 | 0.0 | 99.6 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 38.4 | 38.4 | 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 |
| Value | 125 | 125 | 117 | 110 | 99 | 124 | 124 | 124 | 63 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo | 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 |
| Value | 0.8 | 0.8 | 0.6 | 0.7 | 0.4 | 0.3 | 0.5 | 0.0 | 0.0 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo | 0.0 | 0.0 | 0.5 | 0.0 | 0.0 | 0.0 | 0.4 | 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 | 99 | 89 | 85 | 82 | 0.0 | 0.0 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo | 84.5 | 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 | 42 | 48 | 136 | 51 | 75 | 43 | 42 | 246 | 44 | 54 | 94 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear | 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 |
| Value | 90 | 122 | 161 | 95 | 147 | 66 | 101 | 336 | 82 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear | 212.5 | 249.5 | 118.3 | 186.7 | 194.3 | 152.6 | 239.6 | 136.4 | 188.2 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 | 2019-06-30 |
| Value | 0.4 | 0.4 | 0.1 | 0.2 | 0.2 | 0.0 | 0.0 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear | 0.9 | 0.8 | 0.1 | 0.4 | 0.3 | 0.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-09-30 |
| Value | 47 | 72 | 24 | 44 | 71 | 23 |
| Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear | 111.6 | 148.7 | 18.2 | 86.3 | 94.1 | 52.6 |
| Period End | 2020-12-31 | 2019-12-31 | 2019-09-30 | 2018-12-31 | 2018-09-30 |
| Value | 49.0 | 0.49 | 0.49 | 0.49 | 0.49 |
| Percentage of MinorityInterestOwnershipPercentageByParent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 29 | 245 | 117 | 105 |
| Percentage of NotesPayableRelatedPartiesClassifiedCurrent | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 46 | 45 | 45 | 0.0 |
| Percentage of NotesReceivableRelatedPartiesNoncurrent | 100.0 | 100.0 | 100.0 | 0.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2019-12-31 |
| Value | 5.4 | 5.4 | 5.6 | 6.5 | 6.6 |
| Percentage of OperatingLeaseWeightedAverageDiscountRatePercent | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 8821 | 8417 | 8077 | 7807 |
| Percentage of OperatingLossCarryforwards | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 1086 | 1088 | 1075 | 969 |
| Percentage of OperatingLossCarryforwards | 12.3 | 12.9 | 13.3 | 12.4 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 213 | 207 |
| Percentage of OperatingLossCarryforwards | 2.4 | 2.5 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 105 | 219 | 220 | 83 |
| Percentage of OperatingLossCarryforwards | 1.2 | 2.6 | 2.7 | 1.1 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 135 | 31 | 31 | 61 |
| Percentage of OperatingLossCarryforwards | 1.5 | 0.4 | 0.4 | 0.8 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 146 | 22 | 23 | 24 |
| Percentage of OperatingLossCarryforwards | 1.7 | 0.3 | 0.3 | 0.3 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 443 | 448 | 447 | 424 |
| Percentage of OperatingLossCarryforwards | 5.0 | 5.3 | 5.5 | 5.4 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 1414 | 1358 | 1391 | 1313 |
| Percentage of OperatingLossCarryforwards | 16.0 | 16.1 | 17.2 | 16.8 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 135 | 117 | 154 | 138 |
| Percentage of OperatingLossCarryforwards | 1.5 | 1.4 | 1.9 | 1.8 |
| Period End | 2020-12-31 |
| Value | 110 |
| Percentage of OperatingLossCarryforwards | 1.3 |
| Period End | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 |
| Value | 5031 | 4924 | 4732 | 4791 |
| Percentage of OperatingLossCarryforwards | 57.0 | 58.5 | 58.6 | 61.4 |
| Period End | 2020-12-31 |
| Value | 1489 |
| Percentage of OperatingLossCarryforwardsValuationAllowance | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 20 | 23 | 24 | 22 |
| Percentage of OtherCommitment | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 7000000.0 | 7000000.0 | 8400000.0 | 8300000.0 |
| Percentage of OtherCommitmentDueAfterFifthYear | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 1400000.0 | 1400000.0 | 1500000.0 | 1400000.0 |
| Percentage of OtherCommitmentDueInFourthYear | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 1800000.0 | 1800000.0 | 9400000.0 | 2100000.0 |
| Percentage of OtherCommitmentDueInNextTwelveMonths | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 1600000.0 | 1600000.0 | 1900000.0 | 1700000.0 |
| Percentage of OtherCommitmentDueInSecondYear | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 |
| Value | 1500000.0 | 1500000.0 | 1600000.0 | 1500000.0 |
| Percentage of OtherCommitmentDueInThirdYear | 100.0 | 100.0 | 100.0 | 100.0 |
| Period End | 2021-06-30 | 2021-03-31 | 2020-09-30 |
| Value | 5700000.0 | 8300000.0 | 6200000.0 |
| Percentage of OtherCommitmentsFutureMinimumPaymentsRemainderOfFiscalYear | 100.0 | 100.0 | 100.0 |
| Period End | 2020-12-31 | 2019-12-31 |
| Value | 272 | 234 |
| Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent | 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 | 2016-12-31 |
| Value | 91 | 68 | 62 | 62 | 53 | 63 | 58 | 67 | 65 | 59 | 73 | 81 | 59 | 64 | 65 | 86 |
| Percentage of PrepaidExpenseCurrent | 100.0 | 100.0 | 100.0 | 100.0 | 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 | 0.7 |
| Percentage of PrepaidExpenseCurrent | 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 |
| Value | 137 | 106 | 106 | 93 | 110 | 118 | 163 | 171 | 192 | 248 | 220 | 225 | 226 | 253 | 211 |
| Percentage of PurchaseObligation | 100.0 | 100.0 | 100.0 | 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 |
| Value | 282 | 295 | 326 | 331 | 372 | 358 | 157 | 145 | 153 | 183 | 119 | 156 | 176 | 225 | 210 |
| Percentage of PurchaseObligation | 205.9 | 277.6 | 307.4 | 353.2 | 337.0 | 302.4 | 96.1 | 84.7 | 79.7 | 73.8 | 54.4 | 69.4 | 78.2 | 88.9 | 99.6 |
| 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 |
| Value | 7.3 | 7.3 | 9.5 | 9.2 | 9.4 | 9.0 | 18 | 15 | 13 | 15 | 22 | 27 | 20 | 24 | 25 |
| Percentage of PurchaseObligationDueAfterFifthYear | 100.0 | 100.0 | 100.0 | 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 |
| Value | 1.8 | 1.9 | 6.3 | 2.5 | 2.5 | 2.5 | 10 | 10 | 12 | 16 | 13 | 15 | 12 | 13 | 12 |
| Percentage of PurchaseObligationDueInFifthYear | 100.0 | 100.0 | 100.0 | 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 | 2017-12-31 |
| Value | 0.5 | 0.5 | 0.5 | 0.3 | 0.7 | 0.8 | 0.9 | 0.9 | 1.3 | 1.4 | 1.3 | 1.5 | 5.0 |
| Percentage of PurchaseObligationDueInFifthYear | 7.9 | 20.0 | 20.0 | 12.0 | 6.6 | 7.3 | 7.4 | 5.5 | 9.4 | 9.3 | 10.2 | 10.8 | 39.7 |
| 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 |
| Value | 6.3 | 6.3 | 9.1 | 4.8 | 4.8 | 4.6 | 11 | 11 | 12 | 17 | 14 | 15 | 13 | 14 | 15 |
| Percentage of PurchaseObligationDueInFourthYear | 100.0 | 100.0 | 100.0 | 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 |
| Value | 0.5 | 0.5 | 43 | 38 | 37 | 35 | 1.3 | 1.3 | 1.4 | 1.4 | 1.9 | 2.0 | 2.0 | 2.2 | 5.5 |
| Percentage of PurchaseObligationDueInFourthYear | 7.9 | 7.9 | 474.7 | 806.2 | 770.8 | 769.6 | 11.5 | 11.2 | 11.0 | 8.2 | 13.2 | 12.8 | 15.2 | 15.1 | 34.8 |
| 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 |
| Value | 39 | 13 | 57 | 40 | 39 | 35 | 71 | 48 | 49 | 54 | 87 | 80 | 74 | 74 | 84 |
| Percentage of PurchaseObligationDueInNextTwelveMonths | 100.0 | 100.0 | 100.0 | 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 |
| Value | 91 | 90 | 139 | 114 | 112 | 106 | 105 | 71 | 61 | 60 | 70 | 63 | 55 | 58 | 142 |
| Percentage of PurchaseObligationDueInNextTwelveMonths | 233.2 | 671.1 | 243.3 | 283.9 | 286.7 | 298.6 | 147.3 | 145.2 | 124.3 | 110.1 | 80.4 | 78.6 | 74.3 | 78.6 | 168.6 |
| 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 |
| Value | 28 | 10 | 13 | 8.3 | 8.3 | 6.0 | 39 | 37 | 39 | 43 | 45 | 28 | 24 | 25 | 54 |
| Percentage of PurchaseObligationDueInSecondYear | 100.0 | 100.0 | 100.0 | 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 |
| Value | 52 | 52 | 89 | 81 | 79 | 74 | 40 | 34 | 24 | 24 | 26 | 24 | 24 | 24 | 45 |
| Percentage of PurchaseObligationDueInSecondYear | 187.2 | 502.9 | 654.7 | 985.5 | 962.7 | 1238.3 | 102.3 | 90.8 | 62.9 | 55.1 | 58.3 | 87.0 | 98.8 | 94.2 | 83.2 |
| 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 |
| Value | 9.1 | 9.1 | 10.0 | 5.6 | 5.7 | 5.3 | 11 | 12 | 13 | 17 | 36 | 19 | 17 | 18 | 18 |
| Percentage of PurchaseObligationDueInThirdYear | 100.0 | 100.0 | 100.0 | 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 |
| Value | 42 | 43 | 52 | 48 | 46 | 43 | 8.7 | 2.3 | 2.2 | 2.0 | 18 | 16 | 16 | 18 | 12 |
| Percentage of PurchaseObligationDueInThirdYear | 470.3 | 473.6 | 528.0 | 858.9 | 814.0 | 822.6 | 73.7 | 19.0 | 16.8 | 11.5 | 51.8 | 87.6 | 98.8 | 97.3 | 65.1 |
| 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 | 45 | 58 | 23 | 40 | 55 | 34 | 52 | 83 | 39 | 63 | 82 |
| Percentage of PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear | 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 | 95 | 108 | 47 | 96 | 98 | 35 | 62 | 94 | 47 | 75 | 120 |
| Percentage of PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear | 209.7 | 187.8 | 206.9 | 237.3 | 177.5 | 102.3 | 119.7 | 113.3 | 120.7 | 119.6 | 146.4 |
| Period End | 2021-06-30 | 2021-03-31 | 20 |