BRKR

Line plots across dimensions of each concept
Line plots across concepts
Tables

Plots across concepts

IncomeStatement

Expenses

Balance Sheet

Assets

Current Assets

NonCurrent Assets

PropertyPlantAndEquipmentNet

Liabilities

Current Liabilities

Noncurrent Liabilities

Stockholders Equity

Per Share

CashFlow

NetCashProvidedByUsedInOperatingActivities

NetCashProvidedByUsedInInvestingActivities

NetCashProvidedByUsedInFinancingActivities

DividendsAndRepurchase

OperatingLeaseLiability

LesseeOperatingLeaseLiabilityPaymentsDue

FiniteLivedIntangibleAssets

InventoryNet

AccountsReceivable

Tables

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
us-gaap:SharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock	▁▅█	151.054472	151.543485	151.987081	NA	153.077692	154.226496	154.155798	153.945784	154.661991	156.814676	156.60934	156.512202	156.305942	156.079898	155.865977	NA	NA	NA	159.854695	NA	NA	NA	165.35418	NA	NA	NA	168.527584	NA	NA	NA	167.579204	NA	NA	NA	166.604427	NA	NA	NA	165.871905	NA	NA	NA	165.229207	NA	NA	NA
us-gaap:SharesOutstanding us-gaap:StatementEquityComponents us-gaap:TreasuryStock	█▄▁	23.144834	22.589258	22.058529	NA	20.560859	19.346577	19.346577	19.346577	18.322428	16.021793	16.02488	16.02488	16.020214	16.01883	16.009099	NA	NA	NA	10.698195	NA	NA	NA	4.290527	NA	NA	NA	0.055404	NA	NA	NA	0.039835	NA	NA	NA	0.021549	NA	NA	NA	0.020265	NA	NA	NA	0.017219	NA	NA	NA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding	▁█	152.9	153.2	NA	154.3	154.7	155.4	NA	155.6	157.6	157.9	NA	157.4	157.0	157.0	NA	158.7	160.4	160.5	NA	161.5	162.4	164.3	NA	168.7	169.7	169.7	NA	169.6	169.5	169.4	NA	168.7	168.4	168.1	NA	167.3	167.1	166.9	NA	166.9	167.3	166.7	NA	165.7	165.8	165.6
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic	▁█	151.3	151.8	NA	153.2	153.6	154.2	NA	154.2	156.1	156.7	NA	156.4	156.1	155.9	NA	157.5	159.5	159.7	NA	160.8	161.4	163.3	NA	167.8	168.3	168.3	NA	168.0	167.6	167.3	NA	167.0	166.8	166.4	NA	166.0	166.0	165.7	NA	165.6	165.4	165.1	NA	164.5	164.3	164.1
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities brkr:UnvestedRestrictedStockUnitsRsu		NA	NA	NA	0.2	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities us-gaap:EmployeeStockOption		NA	NA	NA	0.3	0.1	0.1	NA	0.1	0.1	0.1	NA	0.6	0.2	0.2	NA	1.0	1.2	0.3	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:EarningsPerShareBasic	▆▆▇▆▃▂▇▇▄▄█▅▄▄▁▄▃▃▇▅▂▃▆▂▃▂▃▂▃▂▄▃▃▂▂▄▂▂▄▃▃▂▄▄▃▃	0.38	0.37	0.45000000000000007	0.35	0.16	0.07	0.45	0.4	0.23	0.2	0.5	0.28	0.2	0.17	-0.02	0.23	0.15	0.14	0.43	0.29	0.09	0.14	0.37	0.07	0.13	0.04	0.16	0.03	0.1	0.05	0.21	0.1	0.14	0.03	0.08	0.24	0.06	0.09	0.24	0.12	0.13	0.07	0.18	0.17	0.14	0.1
us-gaap:EarningsPerShareDiluted	▆▆▇▆▃▂▇▇▄▄█▅▄▄▁▄▃▃▇▅▂▃▆▂▃▂▃▂▃▂▄▃▃▂▂▄▂▂▄▃▃▂▄▄▃▃	0.38	0.37	0.45000000000000007	0.35	0.16	0.07	0.44	0.39	0.23	0.2	0.5	0.28	0.2	0.17	-0.02	0.23	0.15	0.13	0.43	0.29	0.09	0.14	0.36	0.07	0.13	0.04	0.15	0.03	0.1	0.05	0.21	0.1	0.14	0.03	0.08	0.24	0.06	0.09	0.23	0.12	0.13	0.07	0.18	0.17	0.14	0.1

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Cost Ratio us-gaap:ProductOrService us-gaap:Product	▆▆█▄▂▂▇▅▄▃▆▃▃▂▅▃▂▁	474.3	458.6	526.5	419.6	347.0	345.0	509.4	440.6	411.7	383.0	470.8	385.5	368.1	352.2	450.3	364.4	345.9	318.9	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
Cost Ratio us-gaap:ProductOrService us-gaap:ProductAndServiceOther	▄▅▅▄▃▁█▄	1.8	2.0	1.9000000000000004	1.8	1.5	0.8	2.9	1.7	NA	1.0	1.9	1.5	2.1	1.8	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
Cost Ratio us-gaap:ProductOrService us-gaap:Service	▇▇█▆▂▂▅▂▂▂▃▃▁▂	94.7	94.1	99.1	90.0	76.1	78.2	87.6	78.8	78.5	77.4	80.9	79.6	73.5	77.7	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,brkr:BsiNano	█▅▆▄▂▁▇▇▅▄	175.3	154.4	163.4	147.1	125.5	120.1	171.0	169.9	151.0	140.8	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,brkr:EnergyAndSuperconTechnologies	█▇▇▅▅▅█▇▇▆▇▆▄▅▆▅▇▄▄▃▁	56.6	52.4	54.7	43.8	44.8	46.2	57.7	52.5	51.9	47.8	55.6	50.9	42.7	45.6	51.0	46.1	54.0	40.1	39.0	35.5	28.5	NA	42.5	32.9	30.8	27.5	36.7	40.0	41.4	34.8	46.6	32.5	37.1	31.2	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
Operating Margin us-gaap:ConsolidationItems,us-gaap:StatementBusinessSegments us-gaap:OperatingSegments,brkr:ScientificInstruments	▅▅█▄▁▁▆▃▃▂	341.8	351.8	411.3	323.4	257.8	261.4	375.6	301.9	291.4	276.0	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
TTM Greenblatt ROC _ _	▆▆█▆▃▂█▆▄▃▇▅▄▃▇▄▃▃▅▄▂▃▅▂▃▂▃▁▃▂▄▃▃▁▃▄▂▃▄▃▃▂▄	85.6	89.1	112.8	81.2	37.9	16.4	117.7	87.8	53.5	41.9	106.4	69.1	48.8	38.1	93.7	49.9	33.5	37.6	76.9	45.9	20.4	34.0	70.7	28.2	31.6	15.2	44.5	4.9	35.4	20.6	61.0	31.5	43.5	12.2	39.2	60.3	22.1	34.4	53.7	37.5	38.7	25.7	51.6	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	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
us-gaap:AllocatedShareBasedCompensationExpense	▇▆▆█▅▅▆▆▄▄▅▆▄▄▄▅▄▄▄▄▃▃▃▃▁▃▃▃▅▃▂▂▁▂▂▃▂▂▃▃▃▂▂▂▂	3.6	3.4	3.4	4.1	2.8	3.0	3.2	3.5	2.6	2.7	3.1	3.3	2.4	2.5	2.6	3.1	2.7	2.6	2.6	2.5	2.1	2.2	2.2	2.2	1.4	2.2	2.3	2.1	3.0	2.0	1.8	1.6	1.4	1.8	1.9	2.1	1.9	1.9	2.1	2.0	2.0	1.8	1.9	1.7	1.7	NA
us-gaap:ComprehensiveIncomeNetOfTax	█▆█▇▆▅▇▆▇▅█▆▄▇▅▇▇▆▅▇▄▇▅▅▇▂▂▁▅▅▇▇▆▃▅▇▃▆▅▃▇▆▆█▄	74.1	40.7	77.9	62.6	33.9	12.7	61.9	27.1	48.6	17.1	82.3	41.4	-5.2	51.2	13.1	60.5	70.6	37.3	8.5	59.7	-2.3	56.0	24.9	3.8	58.6	-58.1	-44.7	-77.5	12.8	11.5	66.8	53.2	27.9	-23.2	11.1	51.7	-23.5	33.5	18.2	-29.7	53.8	39.3	26.7	79.0	-7.7	NA
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	█▆█▇▆▅▇▆▇▅█▆▄▇▅▇█▆▅▇▄▇▅▅▇▂▂▁▅▅▇▇▆▃▅▇▃▆▅▃▇▆▆█▄	73.4	41.6	80.4	64.0	34.2	12.1	63.0	26.1	49.5	17.0	82.5	41.9	-5.4	51.8	13.6	61.2	71.6	37.5	8.2	60.3	-2.2	56.2	24.8	5.0	59.4	-57.7	-44.4	-76.7	13.3	13.1	67.5	53.5	28.3	-22.9	11.2	51.8	-23.5	33.6	19.8	-29.7	54.3	39.8	27.9	79.1	-7.4	NA
us-gaap:CostOfRevenue	▇▆█▆▅▄▇▆▆▅▆▅▅▄▆▅▄▃▅▃▃▃▆▄▄▃▇▅▅▅█▅▅▄▆▅▄▄▆▄▄▃▄▂▂▁	290.2	276.0	314.5	263.1	238.4	231.7	303.6	267.2	259.8	246.7	280.8	244.0	238.5	232.3	275.3	237.6	231.5	208.5	249.9	208.7	201.6	208.6	266.7	228.6	226.6	193.3	292.2	252.5	256.9	244.0	316.2	245.8	253.3	218.9	275.1	237.2	232.5	215.2	257.4	229.0	217.6	191.9	220.0	163.7	165.6	151.4
us-gaap:GrossProfit	▇▇█▆▃▃▇▆▅▄▆▅▄▄▆▄▃▃▅▃▃▃▄▃▃▂▄▃▄▃▅▄▄▃▅▄▃▃▄▃▃▂▄▂▁▁	280.6	278.7	313.0	248.3	186.2	192.3	296.3	253.9	230.4	214.7	272.8	222.6	205.2	199.4	255.2	198.0	183.4	176.4	220.4	185.2	170.1	166.8	211.5	167.5	169.4	160.2	215.8	167.3	200.5	179.7	235.9	193.2	201.6	174.5	242.2	210.6	188.2	190.4	217.7	189.4	183.6	165.1	196.1	146.5	135.3	126.3
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	▆▆█▅▂▁█▆▃▃▇▅▃▃▆▃▂▂▆▃▁▂	80.0	85.3	105.7	75.3	31.3	13.5	111.2	83.2	47.6	38.4	100.2	65.4	43.3	35.8	88.6	47.4	30.2	31.6	88.4	43.0	17.8	28.4	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:IncomeTaxExpenseBenefit	▃▃▄▃▂▂▄▃▂▂▃▃▂▂█▂▂▂▃▁▂▂▂▂▁▂▃▁▂▂▃▂▂▁▃▃▂▂▂▃▂▂▃▂▂▂	21.3	27.5	34.400000000000006	20.0	7.1	2.9	42.4	21.7	10.6	7.7	22.3	21.2	11.8	8.4	91.6	9.8	6.2	9.9	19.3	-4.0	3.0	4.8	5.3	10.7	2.3	4.8	17.0	2.7	16.3	5.7	17.9	9.9	12.4	2.6	21.2	17.7	9.4	11.8	12.8	19.3	10.4	9.0	21.6	10.3	10.8	10.6
us-gaap:NetIncomeLoss	▆▆▇▆▃▂▇▇▄▄█▅▄▄▁▄▃▃▇▅▃▃▇▂▃▂▄▂▃▂▄▃▃▂▂▅▂▃▅▃▃▂	57.6	56.7	68.9	54.3	24.1	10.5	68.6	61.3	36.5	30.8	78.1	43.4	31.2	27.0	-3.4	37.0	23.4	21.6	69.0	46.5	14.5	23.6	61.4	11.8	21.9	6.5	26.1	5.5	16.4	8.7	35.2	16.6	22.9	5.4	12.8	39.7	9.9	15.1	39.1	19.8	22.1	11.3	NA	NA	22.6	16.1
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest	▄▄█▄▂▂▂▂▃▁▁▄▂▃▃▃▃▂▂▃▂	1.1	1.1	2.4	1.0	0.1	0.1	0.2	0.2	0.5	-0.1	-0.2	0.8	0.3	0.4	0.4	0.6	0.6	0.1	0.1	0.5	0.3	NA	0.6	1.1	1.2	0.4	0.4	0.8	0.4	1.3	0.7	0.3	0.4	0.3	0.5	0.2	NA	NA	0.5	0.3	0.5	0.4	0.7	0.5	0.3	-0.1
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic	▆▆▇▆▃▂▇▇▄▄█▅▄▄▁▄▃▃▇▅▃▃▇▂▃▂▄▂▃▂▄▃▃▂▂▅▂▃▅▃▃▂▄▄▃▃	57.6	56.7	68.9	54.3	24.1	10.5	68.6	61.3	36.5	30.8	78.1	43.4	31.2	27.0	-3.4	37.0	23.4	21.6	69.0	46.5	14.5	23.6	61.4	11.8	21.9	6.5	26.1	5.5	16.4	8.7	35.2	16.6	22.9	5.4	12.8	39.7	9.9	15.1	39.1	19.8	22.1	11.3	29.3	27.4	22.6	16.1
us-gaap:NonoperatingIncomeExpense	▂▂▁▂▁▃▁▂▂▃▂▂▂▃▂▃▃▂█▃▃▂▃▂▂▃▃▅▃▂▁▂▁▂▂▃▃▁	-5.6	-3.8	-7.1	-5.9	-6.6	-2.9	-6.5	-4.6	-5.9	-3.5	-6.2	-3.7	-5.5	-2.3	-5.1	-2.5	-3.3	-6.0	11.5	-2.9	-2.6	-5.6	-3.4	-4.6	-6.2	-3.5	-1.0	4.1	-2.3	-4.9	-7.2	-4.7	-7.8	-3.9	-4.7	-2.7	-2.8	-7.5	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:OperatingExpenses	▇▇█▆▄▆▆▆▆▆▆▅▅▅▅▄▄▄▄▄▄▃▄▄▄▄▆▅▅▅▆▅▅▅█▅▆▅▅▅▄▄▄▂▁▁	195.0	189.6	200.2	167.1	148.3	175.9	178.6	166.1	176.9	172.8	166.4	153.5	156.4	161.3	161.5	148.1	149.9	138.8	143.5	139.3	149.7	132.8	140.8	139.3	137.8	145.0	171.3	162.4	165.1	159.1	174.9	161.7	158.1	162.3	203.0	150.3	166.1	156.0	164.0	151.9	144.9	139.4	144.5	107.2	97.4	99.4
us-gaap:OperatingIncomeLoss	▆▆█▆▃▂█▆▄▃▇▅▄▃▇▄▃▃▅▄▂▃▅▂▃▂▃▁▃▂▄▃▃▁▃▄▂▃▄▃▃▂▄▃▃▂	85.6	89.1	112.8	81.2	37.9	16.4	117.7	87.8	53.5	41.9	106.4	69.1	48.8	38.1	93.7	49.9	33.5	37.6	76.9	45.9	20.4	34.0	70.7	28.2	31.6	15.2	44.5	4.9	35.4	20.6	61.0	31.5	43.5	12.2	39.2	60.3	22.1	34.4	53.7	37.5	38.7	25.7	51.6	39.3	37.9	26.9
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	▆▄▆▆▆▅▆▃▆▅▅▅▃▇▆▇█▆▃▆▄▇▅▅▇▂▃▁▅▆▆▇▆▄▆▆▄▆	14.3	-19.5	16.5	8.6	9.7	-13.0	18.9	-36.5	12.7	-14.5	-8.4	-2.5	-39.4	24.8	10.1	21.9	49.5	15.6	-55.3	12.7	-18.6	33.6	-16.5	-10.2	35.8	-72.9	-47.3	-84.1	-3.5	2.9	15.0	37.6	4.3	-29.6	12.8	11.9	-34.7	18.8	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedDefinedBenefitPlansAdjustment	▁█	0.0	3.3	NA	0.1	0.3	14.5	NA	1.2	-0.2	0.8	NA	0.2	2.6	-0.5	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	8.3	NA	NA	NA	-0.1	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedOtherComprehensiveIncome	█▁	16.4	-15.8	NA	8.3	9.8	2.2	NA	-34.2	12.1	-13.7	4.3	-2.1	-36.4	24.2	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:ProfitLoss	▆▆▇▆▃▂▇▇▄▄█▅▄▄▁▅▃▃▇▅▃▃▇▂▃▂▄▂▃▂▄▃▃▂▂▅▂▃▅▃▃▂▄▄▃▃	58.7	57.8	71.3	55.3	24.2	10.6	68.8	61.5	37.0	30.7	77.9	44.2	31.5	27.4	-3.0	37.6	24.0	21.7	69.1	47.0	14.8	23.6	62.0	12.9	23.1	6.9	26.5	6.3	16.8	10.0	35.9	16.9	23.3	5.7	13.3	39.9	9.9	15.1	39.6	20.1	22.6	11.7	30.0	27.9	22.9	16.0
us-gaap:ResearchAndDevelopmentExpense	█▇█▆▄▆▅▅▆▅▅▄▄▄▄▄▄▃▃▃▃▂▂▂▃▃▄▄▅▅▆▅▅▆▆▅▇▆▅▄▅▅▅▁▁▁	55.8	54.8	57.1	48.3	44.1	48.5	46.7	46.1	48.5	46.4	44.8	41.8	43.6	43.2	43.5	40.9	40.7	37.6	38.2	37.9	36.8	36.1	36.7	34.3	37.5	37.2	41.6	42.1	44.5	46.0	49.1	45.5	46.5	49.4	50.3	44.9	51.9	48.2	44.7	43.5	44.3	44.7	44.9	32.5	31.2	32.8
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax	▇▇█▆▄▄▇▆▅▅▇▅▄▄▆▄▄▃▅▃▃▃▅▃▃▃▆▄▅▄▆▄▅▃▆▄▄▄▅▄▃▃▄▂▁▁	570.8	554.7	627.5	511.4	424.6	424.0	599.9	521.1	490.2	461.4	553.6	466.6	443.7	431.7	530.5	435.6	414.9	384.9	470.3	393.9	371.7	375.4	478.2	396.1	396.0	353.5	508.0	419.8	457.4	423.7	552.1	439.0	454.9	393.4	517.3	447.8	420.7	405.6	475.1	418.4	401.2	357.0	416.1	310.2	300.9	277.7
us-gaap:Revenues	▇▇█▆▄▄▇▆▅▅▇▅▄▄▆▄▄▃▅▃▃▃▅▃▃▃▆▄▅▄▆▄▅▃▆▄▄▄▅▄▃▃▄▂▁▁	570.8	554.7	627.5	511.4	424.6	424.0	599.9	521.1	490.2	461.4	553.6	466.6	443.7	431.7	530.5	435.6	414.9	384.9	470.3	393.9	371.7	375.4	478.2	396.1	396.0	353.5	508.0	419.8	457.4	423.7	552.1	439.0	454.9	393.4	517.3	447.8	420.7	405.6	475.1	418.4	401.2	357.0	416.1	310.2	300.9	277.7
us-gaap:SellingGeneralAndAdministrativeExpense	███▆▅▇█▇▇▇▆▅▆▆▆▅▅▄▅▄▅▄▅▄▄▄▆▅▆▅▆▅▅▅▇▅▆▅▆▅▄▃▄▂▁▁	134.8	131.8	130.4	114.6	102.4	121.2	130.3	125.3	124.5	120.1	117.3	106.5	110.6	110.3	112.1	102.9	102.8	98.1	100.1	96.8	100.9	92.7	103.0	96.1	98.5	94.6	118.5	108.0	115.0	109.5	118.3	105.7	107.1	106.8	124.5	102.9	110.6	104.4	119.1	101.3	97.5	88.7	99.2	72.2	64.0	65.6

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
us-gaap:Assets	███▇▇▇▇▅▅▄▄▃▂▂▃▃▃▂▂▂▂▂▂▂▂▂▂▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁	3087.0	3034.9	3049.0	2879.4	2943.4	2961.9	2771.5	2352.1	2349.7	2242.5	2128.6	1889.1	1806.0	1830.5	1948.5	1961.5	1912.9	1839.9	1808.4	1797.9	1720.5	1739.8	1730.9	1842.9	1820.4	1772.7	1864.8	1910.6	2003.9	2027.7	1988.3	1936.2	1801.8	1811.9	1856.4	1800.0	1750.1	1797.3	1710.5	1670.4	1699.9	1623.9	1549.8	NA	NA	NA
us-gaap:LiabilitiesAndStockholdersEquity	███▇▇▇▇▅▅▄▄▃▂▂▃▃▃▂▂▂▂▂▂▂▂▂▂▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁	3087.0	3034.9	3049.0	2879.4	2943.4	2961.9	2771.5	2352.1	2349.7	2242.3	2128.6	1889.1	1806.0	1830.5	1948.5	1961.5	1912.9	1839.9	1808.4	1797.9	1720.5	1739.8	1730.9	1842.9	1820.4	1772.7	1864.8	1910.6	2003.9	2027.7	1988.3	1936.2	1801.8	1811.9	1856.4	1800.0	1750.1	1797.3	1710.5	1670.4	1699.9	1623.9	1549.8	NA	NA	NA
us-gaap:StockholdersEquity	█▇▇▇▆▇▇▆▆▇▆▅▅▅▄▄▄▄▃▃▃▄▄▄▄▄▅▅▆▆▆▅▄▃▄▃▃▃▂▂▃▂▁	1002.0	967.7	961.2	952.1	897.4	915.6	906.8	845.2	860.8	913.2	896.6	816.9	776.6	781.5	725.4	731.8	755.7	724.7	686.4	693.9	663.3	702.1	726.1	760.3	760.9	715.8	765.9	807.5	880.3	862.6	846.1	777.1	718.9	689.2	706.6	692.7	638.7	658.6	621.5	599.5	627.4	568.3	524.7	NA	NA	NA

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
us-gaap:AssetsCurrent	███▇██▇▄▄▃▃▃▂▂▃▃▃▃▃▃▂▂▂▃▃▃▃▄▄▄▄▃▃▃▃▂▂▂▂▂▂▁▁	1968.2	1946.2	1925.0	1826.1	1957.2	1990.0	1796.3	1434.0	1406.4	1343.7	1304.3	1261.5	1182.0	1240.5	1358.8	1336.8	1299.6	1264.1	1275.9	1266.7	1215.4	1225.4	1231.6	1386.4	1354.5	1304.8	1366.3	1399.7	1465.4	1476.7	1431.9	1372.9	1263.8	1277.5	1309.7	1244.9	1212.1	1245.4	1194.1	1169.1	1167.1	1115.8	1051.1	NA	NA	NA
us-gaap:CashAndCashEquivalentsAtCarryingValue	▆▇▇▅▇█▇▂▂▂▃▂▂▂▃▂▂▂▃▂▂▁▂▃▃▃▃▃▃▄▄▃▂▂▃▂▂▂▂▁▁▁▂▁▁▁	608.1	696.8	681.8	567.1	746.8	795.5	678.3	296.3	282.5	298.8	322.4	270.1	258.7	283.9	325.0	263.9	217.7	277.5	342.4	278.7	232.5	209.9	267.1	331.0	320.8	334.5	319.5	329.2	389.8	454.0	438.7	306.8	250.9	269.4	310.6	242.1	240.3	229.5	246.0	195.8	169.8	193.3	230.4	188.0	187.6	203.1
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	▆▇▇▅▇█▇▂▂▂▂▂▁▂▂▂▁▂▃	611.7	700.4	685.5	570.6	750.4	798.9	681.9	300.0	286.5	302.6	326.3	274.8	262.5	287.8	328.9	267.8	221.4	280.7	345.9	NA	NA	NA	271.2	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:ShortTermInvestments	█▄▄▄▄▅▁	97.9	50.0	50.0	50.0	50.0	56.2	6.6	NA	NA	NA	0.0	NA	NA	NA	114.2	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:AccountsReceivableNetCurrent	▇▆▇▇▆▆██▇██▆▄▆▆▄▃▂▃▂▁▂▂▃▃▂▅▄▄▅▆▅▅▄▅▄▃▃▄▄▄▃▂	337.0	326.0	335.3	329.9	324.5	325.5	362.2	358.8	348.0	360.4	357.2	323.4	278.8	313.6	319.3	269.8	240.4	225.4	243.9	223.6	206.9	233.4	234.7	242.3	240.3	227.6	293.2	268.9	279.6	295.0	307.6	297.7	300.5	273.4	289.3	264.8	248.8	261.8	282.8	271.1	273.7	250.5	232.9	NA	NA	NA
us-gaap:InventoryNet	█▇▇▇▇▆▅▅▅▄▃▃▃▃▂▃▃▂▁▂▂▂▁▂▂▂▂▄▅▆▅▆▅▆▅▆▆▆▅▅▅▄▃	730.2	700.7	692.3	695.9	665.4	625.5	577.2	586.7	594.6	541.8	509.6	518.6	509.4	518.0	486.2	515.3	505.1	476.4	440.4	483.1	471.0	460.1	422.0	478.3	486.3	473.9	477.4	566.8	612.1	620.5	589.8	632.0	601.8	621.7	611.5	632.8	620.3	648.0	576.2	601.4	618.7	571.6	511.0	NA	NA	NA
us-gaap:OtherAssetsCurrent	█▇▆▇▇█▇▇▇▅▃▅▅▄▃▄▃▂▂▄▃▃▃▄▄▃▂▄▃▃▂▅▃▃▂▃▃▃▁▂▃▂▁	195.0	172.7	165.6	183.2	170.5	187.3	172.0	186.1	175.0	142.7	115.1	149.4	135.1	125.0	114.1	122.5	113.8	97.8	91.3	118.5	117.1	111.4	106.6	133.5	134.3	111.0	88.9	121.7	116.1	107.2	86.1	136.4	110.6	113.0	92.5	105.2	102.7	102.5	75.4	97.8	101.6	97.4	73.9	NA	NA	NA

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
us-gaap:NoncurrentAssets		NA	NA	463.0	NA	NA	NA	371.7	NA	NA	NA	270.6	NA	NA	NA	266.5	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	249.0	NA	NA	NA	233.7	NA	NA	NA
us-gaap:NoncurrentAssets us-gaap:StatementGeographical brkr:OtherCountry		NA	NA	7.1	NA	NA	NA	8.7	NA	NA	NA	4.5	NA	NA	NA	2.1	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	4.3	NA	NA	NA	2.9	NA	NA	NA
us-gaap:NoncurrentAssets us-gaap:StatementGeographical brkr:RestOfEurope		NA	NA	144.7	NA	NA	NA	118.3	NA	NA	NA	78.7	NA	NA	NA	71.9	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:DE		NA	NA	227.8	NA	NA	NA	175.1	NA	NA	NA	137.0	NA	NA	NA	140.9	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	132.2	NA	NA	NA	126.0	NA	NA	NA
us-gaap:NoncurrentAssets us-gaap:StatementGeographical country:US		NA	NA	61.3	NA	NA	NA	53.2	NA	NA	NA	44.1	NA	NA	NA	46.2	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	44.9	NA	NA	NA	40.0	NA	NA	NA
us-gaap:NoncurrentAssets us-gaap:StatementGeographical srt:AsiaPacific		NA	NA	22.1	NA	NA	NA	16.4	NA	NA	NA	6.3	NA	NA	NA	5.4	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:PropertyPlantAndEquipmentGross		NA	NA	828.0	NA	NA	NA	731.7	NA	NA	NA	692.4	NA	NA	NA	687.8	NA	NA	NA	616.5	NA	NA	NA	603.5	NA	NA	NA	622.7	NA	NA	NA	699.2	NA	NA	NA	664.9	NA	NA	NA	572.5	NA	NA	NA	540.8	NA	NA	NA
us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType brkr:BuildingAndLeaseholdImprovements		NA	NA	374.7	NA	NA	NA	305.2	NA	NA	NA	299.2	NA	NA	NA	294.8	NA	NA	NA	266.7	NA	NA	NA	261.9	NA	NA	NA	272.1	NA	NA	NA	301.7	NA	NA	NA	278.0	NA	NA	NA	241.3	NA	NA	NA	231.5	NA	NA	NA
us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType brkr:MachineryEquipmentSoftwareAndFurnitureAndFixtures		NA	NA	416.8	NA	NA	NA	400.0	NA	NA	NA	366.4	NA	NA	NA	364.9	NA	NA	NA	323.1	NA	NA	NA	314.0	NA	NA	NA	320.9	NA	NA	NA	362.6	NA	NA	NA	353.1	NA	NA	NA	298.9	NA	NA	NA	281.0	NA	NA	NA
us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:Land		NA	NA	36.5	NA	NA	NA	26.5	NA	NA	NA	26.8	NA	NA	NA	28.1	NA	NA	NA	26.7	NA	NA	NA	27.6	NA	NA	NA	29.7	NA	NA	NA	34.9	NA	NA	NA	33.8	NA	NA	NA	32.3	NA	NA	NA	28.3	NA	NA	NA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment		NA	NA	432.5	NA	NA	NA	425.6	NA	NA	NA	421.8	NA	NA	NA	421.3	NA	NA	NA	377.4	NA	NA	NA	372.4	NA	NA	NA	372.8	NA	NA	NA	399.7	NA	NA	NA	381.3	NA	NA	NA	323.5	NA	NA	NA	307.1	NA	NA	NA
us-gaap:AmortizationOfIntangibleAssets	▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃█▁▁▂	9.1	8.9	9.1	9.0	9.0	8.7	9.1	9.2	9.9	10.1	7.4	6.9	7.8	6.8	7.0	8.2	7.5	6.9	5.5	5.4	5.4	5.4	5.2	5.1	5.2	5.2	5.1	5.1	4.8	5.2	5.5	5.1	5.1	5.1	5.8	5.5	5.6	5.1	16.0	0.8	0.7	3.9	NA	0.6	0.3	0.5
us-gaap:PropertyPlantAndEquipmentNet	█▇█▆▅▅▄▃▃▃▃▂▂▃▃▂▂▂▁▁▁▁▁▁▁▁▂▃▄▄▄▄▃▃▃▃▂▂▂▂▃▂▁	398.0	384.1	395.5	354.6	335.9	318.6	306.1	278.1	281.9	267.6	270.6	260.9	259.2	270.0	266.5	260.4	252.8	241.0	239.1	239.4	236.8	239.0	231.1	232.4	233.1	228.7	249.9	265.0	293.4	296.7	299.5	297.4	287.8	279.7	283.6	272.5	259.1	261.8	249.0	249.4	265.9	246.8	233.7	NA	NA	NA
us-gaap:Goodwill	████▇▇▇▇▇▆▆▄▃▃▃▃▂▂▁▁▁▁▁▁▁▁▁▁▁	314.9	313.3	320.4	312.8	295.0	290.0	293.0	282.3	284.7	275.3	275.7	199.9	192.4	171.1	169.8	168.6	165.4	151.6	130.6	131.4	131.0	131.9	130.6	125.1	125.7	124.7	127.8	135.1	126.9	NA	127.4	126.6	115.6	115.2	115.9	116.4	109.8	110.7	100.2	96.4	100.1	NA	98.3	NA	NA	NA
us-gaap:IntangibleAssetsNetExcludingGoodwill	▁▃█	205.9	213.4	229.1	NA	NA	NA	233.2	NA	NA	NA	218.7	98.7	88.0	76.8	82.4	89.0	92.2	85.9	69.7	60.7	65.8	70.3	74.7	66.2	73.6	78.0	83.8	88.6	95.6	100.5	105.6	108.4	106.1	111.1	117.0	133.8	138.5	147.1	136.4	133.1	137.6	NA	136.1	NA	NA	NA
us-gaap:FiniteLivedIntangibleAssetsNet	▆▇▇▇▇▇███▇▇▂▂▂▂▂▂▂▁▁▁▁▂▁▁▂▂▂▂▂▂▃▂▃▃▄▄▄▄▃▃	205.9	213.4	229.1	231.0	218.2	221.2	233.2	234.3	246.3	219.3	218.7	98.1	87.4	76.1	81.8	88.4	91.6	85.3	69.1	60.7	65.2	69.7	74.1	65.6	73.0	77.4	77.5	82.9	89.9	94.8	99.9	102.7	100.4	105.4	111.3	128.1	132.7	141.3	128.4	125.2	116.3	NA	114.8	NA	NA	NA
us-gaap:DeferredTaxAssetsLiabilitiesNet		NA	NA	28.5	NA	NA	NA	NA	NA	NA	NA	0.2	NA	NA	NA	32.6	NA	NA	NA	66.4	NA	NA	NA	43.5	NA	NA	NA	6.2	NA	NA	NA	-10.9	NA	NA	NA	4.4	NA	NA	NA	-6.3	NA	NA	NA	-6.9	NA	NA	NA
us-gaap:OperatingLeaseRightOfUseAsset		NA	NA	67.4	60.7	60.0	62.3	65.6	68.9	74.5	77.4	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:OperatingLeaseRightOfUseAsset us-gaap:BusinessAcquisition brkr:CanopyBiosciences		NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:OperatingLeaseRightOfUseAsset us-gaap:BusinessAcquisition brkr:CanopyBiosciencesLlc		NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:OtherAssetsNoncurrent	█▇▁	200.0	177.9	39.6	NA	NA	NA	16.8	NA	NA	NA	8.4	NA	NA	NA	14.0	NA	NA	NA	16.6	NA	NA	NA	9.9	NA	NA	NA	7.3	NA	NA	NA	5.2	NA	NA	NA	12.6	NA	NA	NA	13.6	NA	NA	NA	18.1	NA	NA	NA

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
us-gaap:AccountsPayableCurrent	▇█▇▅▅▆▅▅▆▆▄▄▄▄▃▃▃▃▃▃▃▃▂▃▃▃▂▄▄▅▂▂▁▂▁▂▂▃▂▂▂▂▁	142.6	152.3	134.6	113.9	119.2	127.0	118.4	116.6	123.7	126.5	104.5	100.0	104.6	104.7	90.8	94.8	91.7	94.7	86.1	93.3	88.0	95.1	72.1	87.4	84.4	87.1	76.0	98.5	102.2	116.4	74.8	82.9	69.5	75.8	69.6	78.0	77.4	87.0	72.3	76.5	82.0	81.0	64.0	NA	NA	NA
us-gaap:AccruedIncomeTaxesCurrent		NA	NA	98.0	NA	NA	NA	52.4	NA	NA	NA	36.8	NA	NA	NA	28.1	NA	NA	NA	11.3	NA	NA	NA	25.1	NA	NA	NA	19.2	NA	NA	NA	9.5	NA	NA	NA	60.9	NA	NA	NA	55.8	NA	NA	NA	61.5	NA	NA	NA
us-gaap:ContractWithCustomerLiabilityCurrent	█▁▆	192.9	182.2	189.2	NA	NA	NA	137.9	126.1	NA	NA	124.4	110.4	109.6	125.3	111.7	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:LiabilitiesCurrent	██▆▄▅▅▃▃▃▃▃▂▂▂▁▁▁▁▁▂▂▂▂▄▃▂▂▃▃▄▃▃▃▃▄▄▅▅▅▇▇▇▆	954.6	943.5	791.9	683.2	749.7	765.8	645.6	643.0	641.0	632.7	599.3	563.1	531.5	558.7	524.5	513.5	493.6	514.9	524.7	552.6	535.1	541.7	554.6	676.1	652.0	540.5	582.7	610.0	628.5	671.1	648.6	646.8	602.8	643.2	681.8	686.5	751.9	771.5	755.8	919.5	901.7	871.3	831.5	NA	NA	NA
us-gaap:OperatingLeaseLiabilityCurrent		NA	NA	21.3	NA	NA	NA	20.6	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:OtherAccruedLiabilitiesCurrent		NA	NA	54.2	NA	NA	NA	55.1	NA	NA	NA	60.2	NA	NA	NA	55.3	NA	NA	NA	52.5	NA	NA	NA	65.7	NA	NA	NA	60.6	NA	NA	NA	84.9	NA	NA	NA	79.8	NA	NA	NA	69.7	NA	NA	NA	65.9	NA	NA	NA
us-gaap:OtherLiabilitiesCurrent	██▇▅▄▅▅▅▄▄▃▃▂▂▃▂▁▁▁▂▁▁▂▂▁▁▂▂▂▂▂▂▂▂▃▂▂▂▃▃▃▂▂	510.9	500.6	465.9	413.0	379.9	401.2	388.8	400.0	379.1	371.2	351.9	337.3	302.3	313.7	322.0	292.5	265.4	271.2	269.5	290.9	272.9	279.8	303.5	288.0	270.1	267.1	301.4	300.8	302.0	302.8	297.8	314.4	294.6	303.2	336.7	304.3	309.6	308.0	320.0	321.8	332.8	309.9	310.9	NA	NA	NA

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
us-gaap:LongTermDebt	▅▅▆▅██▅▁▁	829.3	824.2	844.5	829.9	1024.9	1010.6	813.3	518.8	494.2	NA	341.1	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	354.6	355.0	355.2	355.7	354.8	355.0	355.7	336.5	336.6	337.2	336.9	320.9	319.6	303.1	94.4	102.3	NA	115.5	NA	NA	NA
us-gaap:LongTermDebtNoncurrent	▅▅▇▆██▆▁▁	721.1	715.8	842.3	828.2	924.2	914.8	812.8	518.5	493.9	NA	322.6	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:DeferredIncomeTaxLiabilitiesNet		NA	NA	43.1	NA	NA	NA	48.8	NA	NA	NA	51.1	NA	NA	NA	24.3	NA	NA	NA	10.1	NA	NA	NA	9.5	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent		NA	NA	122.8	NA	NA	NA	122.0	NA	NA	NA	90.5	NA	NA	NA	105.6	NA	NA	NA	102.5	NA	NA	NA	91.6	NA	NA	NA	66.2	NA	NA	NA	40.5	NA	NA	NA	60.0	NA	NA	NA	39.2	NA	NA	NA	39.4	NA	NA	NA
us-gaap:MinorityInterest	██▇▆▅▅▆▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁	13.4	14.0	13.1	10.6	9.2	9.0	10.3	9.5	9.3	8.4	8.5	8.3	8.7	8.8	8.1	8.1	7.4	6.9	6.7	7.0	7.1	7.0	6.8	7.7	6.6	5.8	5.8	5.6	5.1	5.7	4.1	3.5	3.8	3.4	3.1	3.0	2.9	3.5	3.4	3.6	3.4	3.2	2.7	2.2	1.6	NA
us-gaap:OtherLiabilitiesNoncurrent	██▄▇▇▆▃▆▆▆▃▆▆▆▂▅▅▅▁▄▄▅▁▄▄▄▁▃▃▃▁▄▃▃▁▃▃▃▁▃▃▃▃	395.6	393.9	176.1	363.2	320.5	312.4	113.9	264.3	267.3	275.7	99.1	275.6	283.6	275.9	96.3	227.6	225.5	208.7	39.6	199.7	192.3	207.2	31.9	157.7	159.5	156.7	35.1	133.0	135.1	134.2	38.4	154.1	140.9	140.6	22.0	119.8	113.3	120.4	14.7	107.0	107.2	102.1	104.3	NA	NA	NA
us-gaap:OperatingLeaseLiabilityNoncurrent		NA	NA	47.0	42.1	42.4	44.3	47.0	50.7	55.4	58.3	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo		NA	NA	15.0	NA	NA	NA	15.9	20.6	20.2	NA	19.1	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree		NA	NA	10.6	NA	NA	NA	9.9	15.2	14.7	NA	13.7	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour		NA	NA	7.3	NA	NA	NA	7.6	9.7	9.7	NA	9.3	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive		NA	NA	5.6	NA	NA	NA	5.4	7.6	7.8	NA	7.3	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive		NA	NA	10.9	NA	NA	NA	10.9	16.7	17.2	NA	18.4	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
us-gaap:StockholdersEquity	█▇▇▇▆▇▇▆▆▇▆▅▅▅▄▄▄▄▃▃▃▄▄▄▄▄▅▅▆▆▆▅▄▃▄▃▃▃▂▂▃▂▁	1002.0	967.7	961.2	952.1	897.4	915.6	906.8	845.2	860.8	913.2	896.6	816.9	776.6	781.5	725.4	731.8	755.7	724.7	686.4	693.9	663.3	702.1	726.1	760.3	760.9	715.8	765.9	807.5	880.3	862.6	846.1	777.1	718.9	689.2	706.6	692.7	638.7	658.6	621.5	599.5	627.4	568.3	524.7	NA	NA	NA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	██▇▇▆▇▇▆▆▇▆▅▅▅▄▄▄▄▃▃▃▄▄▄▄▄▅▅▆▆▆▅▄▃▄▃▃▃▂▂▂▂▁	1015.4	981.7	974.3	962.7	906.6	924.6	917.1	854.7	870.1	921.6	905.1	825.2	785.3	790.3	733.5	739.9	763.1	731.6	693.1	700.9	670.4	709.1	732.9	768.0	767.5	721.6	771.7	813.1	885.4	868.3	850.2	780.6	722.7	692.6	709.7	695.7	641.6	662.1	624.9	603.1	630.8	571.5	527.4	NA	NA	NA
us-gaap:AdditionalPaidInCapitalCommonStock		NA	NA	216.3	NA	NA	NA	199.7	NA	NA	NA	176.9	NA	NA	NA	155.9	NA	NA	NA	124.7	NA	NA	NA	102.1	NA	NA	NA	81.1	NA	NA	NA	63.5	NA	NA	NA	48.3	NA	NA	NA	36.0	NA	NA	NA	21.7	NA	NA	NA
us-gaap:RetainedEarningsAccumulatedDeficit		NA	NA	1406.5	NA	NA	NA	1274.7	NA	NA	NA	1102.5	NA	NA	NA	942.0	NA	NA	NA	885.2	NA	NA	NA	757.4	NA	NA	NA	655.8	NA	NA	NA	599.1	NA	NA	NA	519.0	506.2	466.5	NA	441.5	NA	NA	NA	349.2	NA	NA	NA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax	▃▃▃▃▃▂▂▃▃▃▃▃▃▄▄▃▃▁▁▃▂▃▂▃▃▂▄▆███▇▆▆▇	4.3	-12.1	3.7	-5.2	-13.5	-23.3	-25.5	-18.8	15.4	3.3	17.0	12.7	14.8	51.2	27.0	10.5	-13.0	-60.2	-75.9	-15.4	-28.7	-11.8	-44.2	-7.7	0.2	-36.0	28.2	98.7	181.7	185.2	182.4	150.8	114.2	109.2	137.8	NA	NA	NA	142.5	NA	NA	NA	152.4	NA	NA	NA
us-gaap:TreasuryStockValue	██▇▇▇▆▆▆▆▅▅▅▅▅▅▅▄▃▃▃▃▃▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁	738.1	699.8	667.0	598.8	593.8	543.8	543.8	543.8	501.5	401.5	401.5	401.5	401.4	401.3	401.2	380.9	293.3	249.3	249.3	234.9	208.7	174.1	90.9	25.9	18.1	0.9	0.9	0.9	0.6	0.6	0.6	0.6	0.4	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	NA	NA	NA
us-gaap:MinorityInterest	██▇▆▅▅▆▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁	13.4	14.0	13.1	10.6	9.2	9.0	10.3	9.5	9.3	8.4	8.5	8.3	8.7	8.8	8.1	8.1	7.4	6.9	6.7	7.0	7.1	7.0	6.8	7.7	6.6	5.8	5.8	5.6	5.1	5.7	4.1	3.5	3.8	3.4	3.1	3.0	2.9	3.5	3.4	3.6	3.4	3.2	2.7	2.2	1.6	NA
us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	█▁	3.6	3.4	NA	4.1	2.8	3.0	NA	3.5	2.6	2.7	NA	3.3	2.4	2.5	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities	▂▅█▄▂▃▆▃▂▂▆▂▃▃▅▃▁▃▄▃	21.9	98.0	203.0	82.39999999999999	11.8	35.0	136.2	52.4	10.6	14.2	132.3	27.5	36.1	43.8	103.7	35.3	-17.2	32.6	90.8	35.9	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	3.8	-29.4	NA	NA	47.6	5.5
us-gaap:NetCashProvidedByUsedInInvestingActivities	▃▅▄▄▅▂▄▅▃▄▁▄▄█▆▆▄▃▄▆	-71.4	-24.0	-28.8	-48.2	-15.1	-100.6	-39.2	-12.6	-79.9	-26.7	-156.3	-29.1	-46.1	108.1	44.5	47.3	-50.7	-71.3	-40.3	19.0	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	-22.4	-10.1	NA	NA	-43.1	-5.4
us-gaap:NetCashProvidedByUsedInFinancingActivities	▄▄▃▁▃▇█▄▅▄▅▄▄▁▃▄▄▄▄▄	-44.9	-38.1	-74.3	-225.5	-53.1	191.3	277.9	-19.5	50.4	-8.8	76.6	14.6	-4.8	-198.8	-89.5	-38.9	1.7	-32.3	26.1	-10.5	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	-9.9	-4.1	NA	NA	-4.6	-4.3
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	▂▃▅▁▃▅█▃▃▃▄▃▃▃▄▄▃▂	-88.7	14.9	114.9	-179.8	-48.5	117.0	381.9	13.5	-16.1	-23.7	51.5	12.3	-25.3	-41.1	61.1	46.4	-59.3	-65.2	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit	▅█▁▇▆▇▆▇	-8.7	4.9	-23.0	1.6	-2.2	1.1	-2.0	-0.2	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	0.0	0.3	15.5	-5.5	0.0	-2.6	-11.4	0.1	0.9	-1.3	-3.2	2.7	-0.1	-4.2	3.9	0.7	1.7	-9.9
us-gaap:DepreciationDepletionAndAmortization	███▇▇▆▆▆▇▆▅▅▅▅▅▆▅▅▄▄▄▄▄▄▄▄▃▆▅▅▅▅▅▅▅▄▅▄▄▄▄▃▃▂▁▁	21.6	22.3	21.7	20.5	19.2	19.0	18.3	18.9	19.4	19.0	16.6	15.9	16.6	15.8	15.7	17.1	16.0	15.1	13.9	13.7	13.5	13.2	13.3	13.3	13.2	13.5	12.1	17.6	14.8	15.2	15.9	15.2	15.0	15.2	16.6	13.9	15.0	13.6	13.6	13.6	13.8	11.9	12.3	9.1	7.2	7.5
us-gaap:IncreaseDecreaseInAccountsReceivable	▅▅▄▄▄▃▄▆▃▅▆█▃▄█▆▅▃▆▆▃▄▄▅▅▁▇▅▄▄▅▄▇▄▆▅▄▃▆▅▆▅▆▆▄▄	9.3	-0.8	-3.9	-2.6	-4.8	-29.5	-3.0	18.6	-16.6	6.0	23.6	43.5	-26.6	-10.0	47.1	25.3	8.7	-25.6	23.8	14.9	-23.1	-7.2	-7.3	4.9	8.9	-51.5	36.0	7.4	-16.1	-12.8	9.6	-11.2	29.6	-8.7	23.6	11.4	-7.7	-28.9	14.3	10.1	18.2	10.2	15.9	20.8	-4.9	-4.5
us-gaap:IncreaseDecreaseInInventories	▆▇▃▅▆█▃▅▆▇▃▅▅▆▂▄▅▆▂▅▆▆▂▄▄▆▁▅▄▇▂▅▃▇▃▅▅▇▄▆▇▇▄▆▅▆	26.7	41.6	-18.1	12.7	36.0	61.0	-20.7	11.1	26.6	43.2	-19.8	10.5	12.8	32.0	-30.9	0.9	5.5	31.1	-30.2	13.4	31.2	28.8	-35.3	1.8	2.3	36.6	-51.5	8.5	0.4	38.0	-40.6	13.0	-15.1	37.0	-23.4	14.3	6.1	52.5	-2.9	32.6	37.8	44.2	-8.2	27.4	17.2	31.6
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet	▅▆▂▄▃▆▅▅▅▆▃▄▅▄▄▄▄▄▄▃▄▄▅▄▅▅▃▄▅▅▁▆▄▅▃▂▃█▅▃▂▇▇▂▄▄	13.1	17.1	-23.1	1.6	-10.2	20.4	13.6	10.3	8.7	17.2	-11.5	1.7	7.9	-2.3	-1.0	-2.7	2.8	-5.5	-4.5	-11.5	1.1	3.3	14.7	2.7	5.2	11.2	-10.4	-3.2	8.9	13.4	-36.3	21.1	2.0	11.4	-10.0	-20.9	-11.7	46.2	8.5	-10.8	-20.5	31.5	35.3	-24.3	-6.7	0.4
us-gaap:NetCashProvidedByUsedInOperatingActivities	▂▅█▄▂▃▆▃▂▂▆▂▃▃▅▃▁▃▄▃	21.9	98.0	203.0	82.39999999999999	11.8	35.0	136.2	52.4	10.6	14.2	132.3	27.5	36.1	43.8	103.7	35.3	-17.2	32.6	90.8	35.9	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	3.8	-29.4	NA	NA	47.6	5.5
us-gaap:NetIncomeLoss	▆▆▇▆▃▂▇▇▄▄█▅▄▄▁▄▃▃▇▅▃▃▇▂▃▂▄▂▃▂▄▃▃▂▂▅▂▃▅▃▃▂	57.6	56.7	68.9	54.3	24.1	10.5	68.6	61.3	36.5	30.8	78.1	43.4	31.2	27.0	-3.4	37.0	23.4	21.6	69.0	46.5	14.5	23.6	61.4	11.8	21.9	6.5	26.1	5.5	16.4	8.7	35.2	16.6	22.9	5.4	12.8	39.7	9.9	15.1	39.1	19.8	22.1	11.3	NA	NA	22.6	16.1
us-gaap:ProfitLoss	▆▆▇▆▃▂▇▇▄▄█▅▄▄▁▅▃▃▇▅▃▃▇▂▃▂▄▂▃▂▄▃▃▂▂▅▂▃▅▃▃▂▄▄▃▃	58.7	57.8	71.3	55.3	24.2	10.6	68.8	61.5	37.0	30.7	77.9	44.2	31.5	27.4	-3.0	37.6	24.0	21.7	69.1	47.0	14.8	23.6	62.0	12.9	23.1	6.9	26.5	6.3	16.8	10.0	35.9	16.9	23.3	5.7	13.3	39.9	9.9	15.1	39.6	20.1	22.6	11.7	30.0	27.9	22.9	16.0
us-gaap:ShareBasedCompensation	▇▆█▇▆▆▁▇▅▆▆▆▅▅▅▆▅▅▅▅▄▄▄▄▃▄▄▄▅▄▄▄▃▄▄▄▄▄▄▄▄▄▄▄▄▄	3.9	3.8	5.1	4.5	3.1	3.3	-0.5	4.0	3.0	3.1	3.1	3.3	2.4	2.5	2.6	3.1	2.7	2.6	2.6	2.5	2.1	2.2	2.2	2.2	1.4	2.2	2.3	2.1	3.0	2.0	1.8	1.6	1.4	1.8	1.9	2.1	1.9	1.9	2.1	2.0	2.0	1.8	1.9	1.7	1.7	1.6

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities	▃▅▄▄▅▂▄▅▃▄▁▄▄█▆▆▄▃▄▆	-71.4	-24.0	-28.8	-48.2	-15.1	-100.6	-39.2	-12.6	-79.9	-26.7	-156.3	-29.1	-46.1	108.1	44.5	47.3	-50.7	-71.3	-40.3	19.0	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	-22.4	-10.1	NA	NA	-43.1	-5.4
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment	▆▆█▄▅█▇▄▅▂▅▃▂▂▃▂▂▃▃▂▂▂▃▂▂▁▂▂▂▂▂▂▄▄▆▅▅▃▄▂▅▂▃▂▁▁	22.6	24.7	28.8	17.6	20.3	30.5	28.2	16.2	18.0	10.6	20.3	11.4	9.0	8.5	12.4	10.2	9.6	11.5	11.1	8.8	9.2	8.0	11.4	9.4	7.7	5.7	7.1	9.9	7.6	9.2	9.0	10.2	16.5	14.6	23.0	19.4	19.6	10.8	16.0	7.2	21.3	9.9	11.4	9.8	5.3	5.4

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities	▄▄▃▁▃▇█▄▅▄▅▄▄▁▃▄▄▄▄▄	-44.9	-38.1	-74.3	-225.5	-53.1	191.3	277.9	-19.5	50.4	-8.8	76.6	14.6	-4.8	-198.8	-89.5	-38.9	1.7	-32.3	26.1	-10.5	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	-9.9	-4.1	NA	NA	-4.6	-4.3
us-gaap:PaymentsOfDividendsCommonStock	▁▃▃▆▃▆▆▆████▆█	6.0	6.1	6.1	6.2	6.1	6.2	6.2	6.2	6.3	6.3	6.3	6.3	6.2	6.3	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
us-gaap:PaymentsForRepurchaseOfCommonStock	▅▄█▁	38.5	32.6	68.8	4.4	NA	NA	0.0	42.3	NA	NA	NA	NA	NA	NA	22.5	88.0	NA	NA	16.5	25.9	NA	NA	65.1	7.7	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA

		2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31

Shares Outstanding

us-gaap:SharesOutstanding us-gaap:StatementEquityComponents

us-gaap:SharesOutstanding

us-gaap:CommonStock

Period End	2021-06-30	2021-03-31	2020-12-31	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31	2009-12-31	2008-12-31
Value	151	151	151	153	154	154	153	154	156	156	156	156	156	155	159	165	168	167	166	165	165	164	164
Percentage of SharesOutstanding	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:TreasuryStock

Period End	2021-06-30	2021-03-31	2020-12-31	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31	2009-12-31	2008-12-31
Value	23	22	22	20	19	19	19	18	16	16	16	16	16	16	10	4.290527	0.055404	0.039835	0.021549	0.020265	0.017219	0.013295	0.010469
Percentage of SharesOutstanding	15.3	14.9	14.5	13.4	12.5	12.6	12.6	11.8	10.2	10.2	10.2	10.2	10.3	10.3	6.7	2.6	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31	2016-09-30	2016-06-30	2016-03-31	2015-09-30	2015-06-30	2015-03-31	2014-09-30	2014-06-30	2014-03-31	2013-09-30	2013-06-30	2013-03-31	2012-09-30	2012-06-30	2012-03-31	2011-09-30	2011-06-30	2011-03-31	2010-09-30	2010-06-30	2010-03-31
Value	152	153	154	154	155	155	157	157	157	157	157	158	160	160	161	162	164	168	169	169	169	169	169	168	168	168	167	167	166	166	167	166	165	165	165
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31	2016-09-30	2016-06-30	2016-03-31	2015-09-30	2015-06-30	2015-03-31	2014-09-30	2014-06-30	2014-03-31	2013-09-30	2013-06-30	2013-03-31	2012-09-30	2012-06-30	2012-03-31	2011-09-30	2011-06-30	2011-03-31	2010-09-30	2010-06-30	2010-03-31
Value	151	151	153	153	154	154	156	156	156	156	155	157	159	159	160	161	163	167	168	168	168	167	167	167	166	166	166	166	165	165	165	165	164	164	164
Percentage of WeightedAverageNumberOfSharesOutstandingBasic	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

brkr:UnvestedRestrictedStockUnitsRsu

Period End	2020-09-30
Value	200000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	100.0

us-gaap:EmployeeStockOption

Period End	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	300000.0	100000.0	100000.0	100000.0	100000.0	100000.0	600000.0	200000.0	200000.0	1000000.0	1200000.0	300000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	150.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	0.38	0.37	0.45	0.35	0.16	0.07	0.45	0.4	0.23	0.2	0.5	0.28	0.2	0.17	-0.02	0.23	0.15	0.14	0.43	0.29	0.09	0.14	0.37	0.07	0.13	0.04	0.16	0.03	0.1	0.05	0.21	0.1	0.14	0.03	0.08	0.24	0.06	0.09	0.24	0.12	0.13	0.07	0.18	0.17	0.14	0.1
Percentage of EarningsPerShareBasic	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	0.38	0.37	0.45	0.35	0.16	0.07	0.44	0.39	0.23	0.2	0.5	0.28	0.2	0.17	-0.02	0.23	0.15	0.13	0.43	0.29	0.09	0.14	0.36	0.07	0.13	0.04	0.15	0.03	0.1	0.05	0.21	0.1	0.14	0.03	0.08	0.24	0.06	0.09	0.23	0.12	0.13	0.07	0.18	0.17	0.14	0.1
Percentage of EarningsPerShareDiluted	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30
Value	3.6	3.4	3.4	4.1	2.8	3.0	3.2	3.5	2.6	2.7	3.1	3.3	2.4	2.5	2.6	3.1	2.7	2.6	2.6	2.5	2.1	2.2	2.2	2.2	1.4	2.2	2.3	2.1	3.0	2.0	1.8	1.6	1.4	1.8	1.9	2.1	1.9	1.9	2.1	2.0	2.0	1.8	1.9	1.7	1.7
Percentage of AllocatedShareBasedCompensationExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.6	0.6	0.0	0.8	0.7	0.7	0.5	0.7	0.5	0.6	0.6	0.7	0.5	0.6	0.5	0.7	0.7	0.7	0.6	0.6	0.6	0.6	0.5	0.6	0.4	0.6	0.5	0.5	0.7	0.5	0.3	0.4	0.3	0.5	0.4	0.5	0.5	0.5	0.4	0.5	0.5	0.5	0.5	0.5	0.6

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType

us-gaap:EmployeeStockOption

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	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31
Value	0.3	0.6	0.5	0.4	0.6	0.7	0.7	0.7	1.0	1.2	1.0	1.0	1.0	1.8	1.7	1.7	1.4	1.3	1.0	1.6	1.5	1.7	1.6	1.7
Percentage of AllocatedShareBasedCompensationExpense	8.8	14.6	17.9	13.3	18.8	20.0	26.9	25.9	32.3	36.4	41.7	40.0	38.5	58.1	63.0	65.4	77.8	81.2	71.4	88.9	78.9	81.0	84.2	89.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.0	0.1	0.1	0.1	0.1	0.1	0.1	0.2	0.2	0.3	0.2	0.2	0.2	0.4	0.4	0.4	0.3	0.3	0.2	0.4	0.3	0.4	0.4	0.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:EmployeeStockOption	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:RestrictedStockUnitsRSU

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	3.1	3.5	2.3	2.6	2.6	2.7	1.8	1.9	2.0	1.8	1.2	1.3	1.3	0.9	0.6	0.6
Percentage of AllocatedShareBasedCompensationExpense	91.2	85.4	82.1	86.7	81.2	77.1	69.2	70.4	64.5	54.5	50.0	52.0	50.0	29.0	22.2	23.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.0	0.7	0.5	0.6	0.4	0.5	0.4	0.4	0.4	0.4	0.3	0.3	0.2	0.2	0.1	0.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RestrictedStockUnitsRSU	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:BusinessAcquisition

brkr:MestrelabResearchS.l

Period End	2021-06-30	2021-03-31	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31
Value	0.4	0.4	0.3	0.3	0.9	0.6	0.4	0.4
Percentage of AllocatedShareBasedCompensationExpense	11.1	11.8	10.7	10.0	28.1	17.1	15.4	14.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.1	0.1	0.1	0.1	0.2	0.1	0.1	0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax brkr:MestrelabResearchS.l	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:BusinessAcquisition, us-gaap:IncomeStatementLocation

brkr:MestrelabResearchS.l, us-gaap:OtherOperatingIncomeExpense

Period End	2020-09-30	2019-09-30
Value	0.3	1.0
Percentage of AllocatedShareBasedCompensationExpense	7.3	28.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.1	0.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax brkr:MestrelabResearchS.l us-gaap:OtherOperatingIncomeExpense	0.0	0.0

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

us-gaap:CostOfSales

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30
Value	0.5	0.5	0.5	0.6	0.4	0.5	0.5	0.5	0.4	0.4	0.5	0.5	0.3	0.4	0.4	0.5	0.4	0.4	0.4	0.4	0.3	0.3	0.3	0.4	0.2
Percentage of AllocatedShareBasedCompensationExpense	13.9	14.7	14.7	14.6	14.3	16.7	15.6	14.3	15.4	14.8	16.1	15.2	12.5	16.0	15.4	16.1	14.8	15.4	15.4	16.0	14.3	13.6	13.6	18.2	14.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.1	0.1	0.0	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CostOfSales	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:ResearchAndDevelopmentExpense

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30
Value	0.5	0.5	0.5	0.6	0.4	0.5	0.5	0.5	0.4	0.4	0.5	0.5	0.3	0.4	0.4	0.5	0.4	0.4	0.4	0.4	0.3	0.3	0.3	0.4	0.2
Percentage of AllocatedShareBasedCompensationExpense	13.9	14.7	14.7	14.6	14.3	16.7	15.6	14.3	15.4	14.8	16.1	15.2	12.5	16.0	15.4	16.1	14.8	15.4	15.4	16.0	14.3	13.6	13.6	18.2	14.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.1	0.1	0.0	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ResearchAndDevelopmentExpense	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:SellingGeneralAndAdministrativeExpenses

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30
Value	2.6	2.4	2.4	2.9	2.0	2.0	2.2	2.5	1.8	1.9	2.1	2.3	1.8	1.7	1.8	2.1	1.9	1.8	1.8	1.7	1.5	1.6	1.6	1.4	1.0
Percentage of AllocatedShareBasedCompensationExpense	72.2	70.6	70.6	70.7	71.4	66.7	68.8	71.4	69.2	70.4	67.7	69.7	75.0	68.0	69.2	67.7	70.4	69.2	69.2	68.0	71.4	72.7	72.7	63.6	71.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.5	0.4	0.0	0.6	0.5	0.5	0.4	0.5	0.4	0.4	0.4	0.5	0.4	0.4	0.3	0.5	0.5	0.5	0.4	0.4	0.4	0.4	0.3	0.4	0.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:SellingGeneralAndAdministrativeExpenses	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30
Value	74	40	77	62	33	12	61	27	48	17	82	41	-5.2	51	13	60	70	37	8.5	59	-2.3	56	24	3.8	58	-58.1	-44.7	-77.5	12	11	66	53	27	-23.2	11	51	-23.5	33	18	-29.7	53	39	26	79	-7.7
Percentage of ComprehensiveIncomeNetOfTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	13.0	7.3	0.0	12.2	8.0	3.0	10.3	5.2	9.9	3.7	14.9	8.9	-1.2	11.9	2.5	13.9	17.0	9.7	1.8	15.2	-0.6	14.9	5.2	1.0	14.8	-16.4	-8.8	-18.5	2.8	2.7	12.1	12.1	6.1	-5.9	2.1	11.5	-5.6	8.3	3.8	-7.1	13.4	11.0	6.4	25.5	-2.6

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30
Value	73	41	80	64	34	12	63	26	49	17	82	41	-5.4	51	13	61	71	37	8.2	60	-2.2	56	24	5.0	59	-57.7	-44.4	-76.7	13	13	67	53	28	-22.9	11	51	-23.5	33	19	-29.7	54	39	27	79	-7.4
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	12.9	7.5	0.0	12.5	8.1	2.9	10.5	5.0	10.1	3.7	14.9	9.0	-1.2	12.0	2.6	14.0	17.3	9.7	1.7	15.3	-0.6	15.0	5.2	1.3	15.0	-16.3	-8.7	-18.3	2.9	3.1	12.2	12.2	6.2	-5.8	2.2	11.6	-5.6	8.3	4.2	-7.1	13.5	11.1	6.7	25.5	-2.5

Cost Of Revenue

us-gaap:CostOfRevenue

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	290	276	314	263	238	231	303	267	259	246	280	244	238	232	275	237	231	208	249	208	201	208	266	228	226	193	292	252	256	244	316	245	253	218	275	237	232	215	257	229	217	191	220	163	165	151
Percentage of CostOfRevenue	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	50.8	49.8	0.0	51.4	56.1	54.6	50.6	51.3	53.0	53.5	50.7	52.3	53.8	53.8	51.9	54.5	55.8	54.2	53.1	53.0	54.2	55.6	55.8	57.7	57.2	54.7	57.5	60.1	56.2	57.6	57.3	56.0	55.7	55.6	53.2	53.0	55.3	53.1	54.2	54.7	54.2	53.8	52.9	52.8	55.0	54.5

us-gaap:CostOfRevenue us-gaap:ProductOrService

us-gaap:Product

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	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	236	220	256	210	193	180	250	220	210	197	229	197	188	185	227	195	191	172
Percentage of CostOfRevenue	81.3	80.0	81.4	79.9	81.1	77.9	82.5	82.5	80.8	80.1	81.7	80.9	79.1	79.9	82.8	82.3	82.7	82.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	41.3	39.8	0.0	41.1	45.5	42.6	41.8	42.3	42.8	42.8	41.5	42.3	42.5	43.0	43.0	44.9	46.2	44.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product	49.8	48.2	0.0	50.1	55.7	52.3	0.0	50.0	51.0	51.6	0.0	51.2	51.3	52.7	0.0	53.7	55.4	54.2

us-gaap:ProductAndServiceOther

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	0.1	0.3	0.3	0.2	0.4	0.1	0.0	0.3	0.0	0.1	0.1	0.1	0.7	0.2
Percentage of CostOfRevenue	0.0	0.1	0.1	0.1	0.2	0.0	0.0	0.1	0.0	0.0	0.0	0.0	0.3	0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.0	0.1	0.0	0.0	0.1	0.0	0.0	0.1	0.0	0.0	0.0	0.0	0.2	0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductAndServiceOther	5.6	15.0	0.0	11.1	26.7	12.5	0.0	17.6	0.0	10.0	0.0	6.7	33.3	11.1

us-gaap:Service

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	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	54	54	58	52	44	51	53	46	49	49	51	46	49	46
Percentage of CostOfRevenue	18.6	19.9	18.5	20.0	18.8	22.1	17.5	17.4	19.2	19.9	18.2	19.1	20.6	20.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	9.5	9.9	0.0	10.3	10.5	12.1	8.8	8.9	10.2	10.6	9.2	10.0	11.1	10.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service	57.1	58.2	0.0	58.4	58.7	65.3	0.0	59.0	63.4	63.4	0.0	58.5	66.8	59.8

Gross Profit

us-gaap:GrossProfit

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	280	278	313	248	186	192	296	253	230	214	272	222	205	199	255	198	183	176	220	185	170	166	211	167	169	160	215	167	200	179	235	193	201	174	242	210	188	190	217	189	183	165	196	146	135	126
Percentage of GrossProfit	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	49.2	50.2	0.0	48.6	43.9	45.4	49.4	48.7	47.0	46.5	49.3	47.7	46.2	46.2	48.1	45.5	44.2	45.8	46.9	47.0	45.8	44.4	44.2	42.3	42.8	45.3	42.5	39.9	43.8	42.4	42.7	44.0	44.3	44.4	46.8	47.0	44.7	46.9	45.8	45.3	45.8	46.2	47.1	47.2	45.0	45.5

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	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	80	85	105	75	31	13	111	83	47	38	100	65	43	35	88	47	30	31	88	43	17	28
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	14.0	15.4	0.0	14.7	7.4	3.2	18.5	16.0	9.7	8.3	18.1	14.0	9.8	8.3	16.7	10.9	7.3	8.2	18.8	10.9	4.8	7.6

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	21	27	34	20	7.1	2.9	42	21	10	7.7	22	21	11	8.4	91	9.8	6.2	9.9	19	-4.0	3.0	4.8	5.3	10	2.3	4.8	17	2.7	16	5.7	17	9.9	12	2.6	21	17	9.4	11	12	19	10	9.0	21	10	10	10
Percentage of IncomeTaxExpenseBenefit	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	3.7	5.0	0.0	3.9	1.7	0.7	7.1	4.2	2.2	1.7	4.0	4.5	2.7	1.9	17.3	2.2	1.5	2.6	4.1	-1.0	0.8	1.3	1.1	2.7	0.6	1.4	3.3	0.6	3.6	1.3	3.2	2.3	2.7	0.7	4.1	4.0	2.2	2.9	2.7	4.6	2.6	2.5	5.2	3.3	3.6	3.8

Net Income Loss

us-gaap:NetIncomeLoss

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-06-30	2010-03-31
Value	57	56	68	54	24	10	68	61	36	30	78	43	31	27	-3.4	37	23	21	69	46	14	23	61	11	21	6.5	26	5.5	16	8.7	35	16	22	5.4	12	39	9.9	15	39	19	22	11	22	16
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	10.1	10.2	0.0	10.6	5.7	2.5	11.4	11.8	7.4	6.7	14.1	9.3	7.0	6.3	-0.6	8.5	5.6	5.6	14.7	11.8	3.9	6.3	12.8	3.0	5.5	1.8	5.1	1.3	3.6	2.1	6.4	3.8	5.0	1.4	2.5	8.9	2.4	3.7	8.2	4.7	5.5	3.2	7.5	5.8

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	1100000.0	1100000.0	2400000.0	1000000.0	100000.0	100000.0	200000.0	200000.0	500000.0	-100000.0	-200000.0	800000.0	300000.0	400000.0	400000.0	600000.0	600000.0	100000.0	100000.0	500000.0	300000.0	600000.0	1100000.0	1200000.0	400000.0	400000.0	800000.0	400000.0	1300000.0	700000.0	300000.0	400000.0	300000.0	500000.0	200000.0	500000.0	300000.0	500000.0	400000.0	700000.0	500000.0	300000.0	-100000.0
Percentage of NetIncomeLossAttributableToNoncontrollingInterest	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.2	0.2	0.0	0.2	0.0	0.0	0.0	0.0	0.1	-0.0	-0.0	0.2	0.1	0.1	0.1	0.1	0.1	0.0	0.0	0.1	0.1	0.1	0.3	0.3	0.1	0.1	0.2	0.1	0.3	0.1	0.1	0.1	0.1	0.1	0.0	0.1	0.1	0.1	0.1	0.2	0.2	0.1	-0.0

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	57	56	68	54	24	10	68	61	36	30	78	43	31	27	-3.4	37	23	21	69	46	14	23	61	11	21	6.5	26	5.5	16	8.7	35	16	22	5.4	12	39	9.9	15	39	19	22	11	29	27	22	16
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	10.1	10.2	0.0	10.6	5.7	2.5	11.4	11.8	7.4	6.7	14.1	9.3	7.0	6.3	-0.6	8.5	5.6	5.6	14.7	11.8	3.9	6.3	12.8	3.0	5.5	1.8	5.1	1.3	3.6	2.1	6.4	3.8	5.0	1.4	2.5	8.9	2.4	3.7	8.2	4.7	5.5	3.2	7.0	8.8	7.5	5.8

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31
Value	-5.6	-3.8	-7.1	-5.9	-6.6	-2.9	-6.5	-4.6	-5.9	-3.5	-6.2	-3.7	-5.5	-2.3	-5.1	-2.5	-3.3	-6.0	11	-2.9	-2.6	-5.6	-3.4	-4.6	-6.2	-3.5	-1.0	4.1	-2.3	-4.9	-7.2	-4.7	-7.8	-3.9	-4.7	-2.7	-2.8	-7.5
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	-1.0	-0.7	0.0	-1.2	-1.6	-0.7	-1.1	-0.9	-1.2	-0.8	-1.1	-0.8	-1.2	-0.5	-1.0	-0.6	-0.8	-1.6	2.4	-0.7	-0.7	-1.5	-0.7	-1.2	-1.6	-1.0	-0.2	1.0	-0.5	-1.2	-1.3	-1.1	-1.7	-1.0	-0.9	-0.6	-0.7	-1.8

Operating Expenses

us-gaap:OperatingExpenses

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	195	189	200	167	148	175	178	166	176	172	166	153	156	161	161	148	149	138	143	139	149	132	140	139	137	145	171	162	165	159	174	161	158	162	203	150	166	156	164	151	144	139	144	107	97	99
Percentage of OperatingExpenses	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	34.2	34.2	0.0	32.7	34.9	41.5	29.8	31.9	36.1	37.5	30.1	32.9	35.2	37.4	30.4	34.0	36.1	36.1	30.5	35.4	40.3	35.4	29.4	35.2	34.8	41.0	33.7	38.7	36.1	37.6	31.7	36.8	34.8	41.3	39.2	33.6	39.5	38.5	34.5	36.3	36.1	39.0	34.7	34.6	32.4	35.8

Operating Income Loss

us-gaap:OperatingIncomeLoss

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	85	89	112	81	37	16	117	87	53	41	106	69	48	38	93	49	33	37	76	45	20	34	70	28	31	15	44	4.9	35	20	61	31	43	12	39	60	22	34	53	37	38	25	51	39	37	26
Percentage of OperatingIncomeLoss	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	15.0	16.1	0.0	15.9	8.9	3.9	19.6	16.8	10.9	9.1	19.2	14.8	11.0	8.8	17.7	11.5	8.1	9.8	16.4	11.7	5.5	9.1	14.8	7.1	8.0	4.3	8.8	1.2	7.7	4.9	11.0	7.2	9.6	3.1	7.6	13.5	5.3	8.5	11.3	9.0	9.6	7.2	12.4	12.7	12.6	9.7

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems

brkr:CorporateReconcilingItemsAndEliminations

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30
Value	-15.8	-16.2	-17.7	-12.8	-8.0	-16.8	-13.499999999999996	0.1	-0.3	0.2	-44.7	0.1	-0.1	0.2	-6.3	5.0	0.8	-0.1	0.1	1.0	0.3	-0.1
Percentage of OperatingIncomeLoss	-18.5	-18.2	-15.7	-15.8	-21.1	-102.4	-11.5	0.1	-0.6	0.5	-42.0	0.1	-0.2	0.5	-6.7	10.0	1.0	-0.2	0.5	2.9	0.4	-0.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	-2.8	-2.9	0.0	-2.5	-1.9	-4.0	-2.3	0.0	-0.1	0.0	-8.1	0.0	-0.0	0.0	-1.2	1.1	0.2	-0.0	0.0	0.3	0.1	-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax brkr:CorporateReconcilingItemsAndEliminations	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:OperatingIncomeLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, brkr:BsiNano

Period End	2021-06-30	2021-03-31	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	21	12	14	12	5.0	-8.0	13	18	5.6	3.2
Percentage of OperatingIncomeLoss	24.5	13.8	12.7	15.0	13.2	-48.8	11.3	20.8	10.5	7.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	3.7	2.2	0.0	2.4	1.2	-1.9	2.2	3.5	1.1	0.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments brkr:BsiNano	12.0	8.0	0.0	8.3	4.0	-6.7	0.0	10.8	3.7	2.3

us-gaap:OperatingSegments, brkr:EnergyAndSuperconTechnologies

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31
Value	6.8	4.1	1.1	1.2	2.3	1.7	6.5	3.7	3.1	3.1	5.2	5.4	1.7	2.2	3.1	1.8	3.0	-0.5	2.5	2.7	1.4	5.4	2.5	2.6	1.0	-7.7	3.9	4.4	2.8	2.8	-0.8	6.6	0.9
Percentage of OperatingIncomeLoss	7.9	4.6	1.0	1.5	6.1	10.4	5.5	4.2	5.8	7.4	4.9	7.8	3.5	5.8	3.3	3.6	9.0	-1.3	3.3	5.9	6.9	7.6	8.9	8.2	6.6	-17.3	79.6	12.4	13.6	4.6	-2.5	15.2	7.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	1.2	0.7	0.0	0.2	0.5	0.4	1.1	0.7	0.6	0.7	0.9	1.2	0.4	0.5	0.6	0.4	0.7	-0.1	0.5	0.7	0.4	1.1	0.6	0.7	0.3	-1.5	0.9	1.0	0.7	0.5	-0.2	1.5	0.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments brkr:EnergyAndSuperconTechnologies	12.0	7.8	0.0	2.7	5.1	3.7	0.0	7.0	6.0	6.5	0.0	10.6	4.0	4.8	0.0	3.9	5.6	-1.2	0.0	7.6	4.9	0.0	7.6	8.4	3.6	0.0	9.8	10.6	8.0	0.0	-2.5	17.8	2.9

us-gaap:OperatingSegments, brkr:ScientificInstruments

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31
Value	73	88	115	80	38	39	117	84	50	38	101	63	47	35	96	43	30	38	73	43	18	33	65	25	28	13	51	0.8	31	16	54	33	39	10
Percentage of OperatingIncomeLoss	86.0	99.8	102.0	99.3	101.8	240.9	99.4	95.7	94.8	92.1	95.3	92.0	96.7	93.7	103.4	86.4	91.0	101.3	95.7	94.3	92.6	97.1	91.9	91.5	90.8	90.1	115.3	16.3	88.1	80.6	90.0	107.3	91.0	86.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	12.9	16.0	0.0	15.8	9.1	9.3	19.5	16.1	10.3	8.4	18.3	13.6	10.6	8.3	18.3	9.9	7.4	9.9	15.6	11.0	5.1	8.8	13.6	6.5	7.2	3.9	10.1	0.2	6.8	3.9	9.9	7.7	8.7	2.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments brkr:ScientificInstruments	21.5	25.3	0.0	24.9	15.0	15.1	0.0	27.8	17.4	14.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31
Value	14	-19.5	16	8.6	9.7	-13.0	18	-36.5	12	-14.5	-8.4	-2.5	-39.4	24	10	21	49	15	-55.3	12	-18.6	33	-16.5	-10.2	35	-72.9	-47.3	-84.1	-3.5	2.9	15	37	4.3	-29.6	12	11	-34.7	18
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	2.5	-3.5	0.0	1.7	2.3	-3.1	3.2	-7.0	2.6	-3.1	-1.5	-0.5	-8.9	5.7	1.9	5.0	11.9	4.1	-11.8	3.2	-5.0	9.0	-3.5	-2.6	9.0	-20.6	-9.3	-20.0	-0.8	0.7	2.7	8.6	0.9	-7.5	2.5	2.7	-8.2	4.6

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustment

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	2015-03-31	2014-03-31
Value	0.0	3.3	0.1	0.3	14	1.2	-0.2	0.8	0.2	2.6	-0.5	8.3	-0.1
Percentage of OtherComprehensiveIncomeLossNetOfTax	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
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.0	0.6	0.0	0.1	3.4	0.2	-0.0	0.2	0.0	0.6	-0.1	2.3	-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedDefinedBenefitPlansAdjustment	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:AccumulatedOtherComprehensiveIncome

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	16	-15.8	8.3	9.8	2.2	-34.2	12	-13.7	4.3	-2.1	-36.4	24
Percentage of OtherComprehensiveIncomeLossNetOfTax	0.0	-478.8	8300.0	3266.7	15.2	-2850.0	-6050.0	-1712.5	0.0	-1050.0	-1400.0	-4840.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	2.9	-2.8	1.6	2.3	0.5	-6.6	2.5	-3.0	0.8	-0.5	-8.2	5.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:AccumulatedTranslationAdjustment

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	2015-03-31	2014-03-31
Value	-32.4	-19.1	8.2	9.5	-12.3	-35.4	12	-14.5	-2.3	-39.0	24	-72.5	2.9
Percentage of OtherComprehensiveIncomeLossNetOfTax	0.0	-578.8	8200.0	3166.7	-84.8	-2950.0	-6150.0	-1812.5	-1150.0	-1500.0	-4940.0	-873.5	-2900.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	-5.7	-3.4	1.6	2.2	-2.9	-6.8	2.5	-3.1	-0.5	-8.8	5.7	-20.5	0.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedTranslationAdjustment	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Profit Loss

us-gaap:ProfitLoss

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	58	57	71	55	24	10	68	61	37	30	77	44	31	27	-3.0	37	24	21	69	47	14	23	62	12	23	6.9	26	6.3	16	10.0	35	16	23	5.7	13	39	9.9	15	39	20	22	11	30	27	22	16
Percentage of ProfitLoss	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	10.3	10.4	0.0	10.8	5.7	2.5	11.5	11.8	7.5	6.7	14.1	9.5	7.1	6.3	-0.6	8.6	5.8	5.6	14.7	11.9	4.0	6.3	13.0	3.3	5.8	2.0	5.2	1.5	3.7	2.4	6.5	3.8	5.1	1.4	2.6	8.9	2.4	3.7	8.3	4.8	5.6	3.3	7.2	9.0	7.6	5.8

Research And Development Expense

us-gaap:ResearchAndDevelopmentExpense

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	55	54	57	48	44	48	46	46	48	46	44	41	43	43	43	40	40	37	38	37	36	36	36	34	37	37	41	42	44	46	49	45	46	49	50	44	51	48	44	43	44	44	44	32	31	32
Percentage of ResearchAndDevelopmentExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	9.8	9.9	0.0	9.4	10.4	11.4	7.8	8.8	9.9	10.1	8.1	9.0	9.8	10.0	8.2	9.4	9.8	9.8	8.1	9.6	9.9	9.6	7.7	8.7	9.5	10.5	8.2	10.0	9.7	10.9	8.9	10.4	10.2	12.6	9.7	10.0	12.3	11.9	9.4	10.4	11.0	12.5	10.8	10.5	10.4	11.8

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	570	554	627	511	424	424	599	521	490	461	553	466	443	431	530	435	414	384	470	393	371	375	478	396	396	353	508	419	457	423	552	439	454	393	517	447	420	405	475	418	401	357	416	310	300	277
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems

us-gaap:IntersegmentElimination

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31
Value	-2.9	-3.9	-1.9	-2.9	-3.5	-3.7	-4.4	-3.2	-4.1	-3.2	-2.5	-1.4	-1.4	-0.9	-4.9	-1.1	-1.6	-1.6	-3.7	-3.1	-2.5	-2.2	-3.2	-3.4	-1.0	-1.5	-4.5	-3.6	-5.5	-5.0	-5.5	-4.1	-3.8	-4.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	-0.5	-0.7	-0.3	-0.6	-0.8	-0.9	-0.7	-0.6	-0.8	-0.7	-0.5	-0.3	-0.3	-0.2	-0.9	-0.3	-0.4	-0.4	-0.8	-0.8	-0.7	-0.6	-0.7	-0.9	-0.3	-0.4	-0.9	-0.9	-1.2	-1.2	-1.0	-0.9	-0.8	-1.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	-0.5	-0.7	-0.3	-0.6	-0.8	-0.9	-0.7	-0.6	-0.8	-0.7	-0.5	-0.3	-0.3	-0.2	-0.9	-0.3	-0.4	-0.4	-0.8	-0.8	-0.7	-0.6	-0.7	-0.9	-0.3	-0.4	-0.9	-0.9	-1.2	-1.2	-1.0	-0.9	-0.8	-1.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, brkr:BsiNano

Period End	2021-06-30	2021-03-31	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	175	154	163	147	125	120	171	169	151	140
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	30.7	27.8	26.0	28.8	29.6	28.3	28.5	32.6	30.8	30.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	30.7	27.8	26.0	28.8	29.6	28.3	28.5	32.6	30.8	30.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments brkr:BsiNano	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OperatingSegments, brkr:EnergyAndSuperconTechnologies

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31
Value	56	52	54	43	44	46	57	52	51	47	55	50	42	45	51	46	54	40	39	35	28	27	42	32	30	27	36	40	41	34	46	32	37	31
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	9.9	9.4	8.7	8.6	10.6	10.9	9.6	10.1	10.6	10.4	10.0	10.9	9.6	10.6	9.6	10.6	13.0	10.4	8.3	9.0	7.7	7.2	8.9	8.3	7.8	7.8	7.2	9.5	9.1	8.2	8.4	7.4	8.2	7.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	9.9	9.4	8.7	8.6	10.6	10.9	9.6	10.1	10.6	10.4	10.0	10.9	9.6	10.6	9.6	10.6	13.0	10.4	8.3	9.0	7.7	7.2	8.9	8.3	7.8	7.8	7.2	9.5	9.1	8.2	8.4	7.4	8.2	7.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments brkr:EnergyAndSuperconTechnologies	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OperatingSegments, brkr:ScientificInstruments

Period End	2021-06-30	2021-03-31	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	341	351	411	323	257	261	375	301	291	276
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	59.9	63.4	65.5	63.2	60.7	61.7	62.6	57.9	59.4	59.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	59.9	63.4	65.5	63.2	60.7	61.7	62.6	57.9	59.4	59.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments brkr:ScientificInstruments	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

us-gaap:Product

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	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	474	458	526	419	347	345	509	440	411	383	470	385	368	352	450	364	345	318
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	83.1	82.7	83.9	82.0	81.7	81.4	84.9	84.6	84.0	83.0	85.0	82.6	83.0	81.6	84.9	83.7	83.4	82.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	83.1	82.7	83.9	82.0	81.7	81.4	84.9	84.6	84.0	83.0	85.0	82.6	83.0	81.6	84.9	83.7	83.4	82.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ProductAndServiceOther

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	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	1.8	2.0	1.9000000000000004	1.8	1.5	0.8	2.9	1.7	0.0	1.0	1.9	1.5	2.1	1.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.3	0.4	0.3	0.4	0.4	0.2	0.5	0.3	0.0	0.2	0.3	0.3	0.5	0.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	0.3	0.4	0.3	0.4	0.4	0.2	0.5	0.3	0.0	0.2	0.3	0.3	0.5	0.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductAndServiceOther	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

us-gaap:Service

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	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	94	94	99	90	76	78	87	78	78	77	80	79	73	77
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	16.6	17.0	15.8	17.6	17.9	18.4	14.6	15.1	16.0	16.8	14.6	17.1	16.6	18.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	16.6	17.0	15.8	17.6	17.9	18.4	14.6	15.1	16.0	16.8	14.6	17.1	16.6	18.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments

brkr:BrukerBioSpinGroup

Period End	2021-06-30	2021-03-31	2020-06-30	2020-03-31
Value	148	159	125	120
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	26.0	28.7	29.5	28.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	26.0	28.7	29.5	28.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax brkr:BrukerBioSpinGroup	100.0	100.0	100.0	100.0

brkr:BrukerCalidGroup

Period End	2021-06-30	2021-03-31	2020-06-30	2020-03-31
Value	193	192	132	140
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	33.9	34.7	31.3	33.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	33.9	34.7	31.3	33.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax brkr:BrukerCalidGroup	100.0	100.0	100.0	100.0

brkr:BrukerNanoGroup

Period End	2021-06-30	2021-03-31	2020-06-30	2020-03-31
Value	175	154	125	120
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	30.7	27.8	29.6	28.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	30.7	27.8	29.6	28.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax brkr:BrukerNanoGroup	100.0	100.0	100.0	100.0

brkr:EnergyAndSuperconTechnologies

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	56	52	43	44	46	57	52	51	47	55	50	42	45
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	9.9	9.4	8.6	10.6	10.9	9.6	10.1	10.6	10.4	10.0	10.9	9.6	10.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	9.9	9.4	8.6	10.6	10.9	9.6	10.1	10.6	10.4	10.0	10.9	9.6	10.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax brkr:EnergyAndSuperconTechnologies	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical

brkr:OtherCountry

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	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	41	35	35	38	31	32	44	48	43	36	39	38	39	38
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	7.3	6.4	5.7	7.4	7.4	7.7	7.4	9.3	9.0	7.9	7.1	8.3	8.8	8.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	7.3	6.4	5.7	7.4	7.4	7.7	7.4	9.3	9.0	7.9	7.1	8.3	8.8	8.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax brkr:OtherCountry	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

brkr:RestOfEurope

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	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	154	149	162	142	110	104	155	121	116	112	153	114	111	119
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	27.1	27.0	25.8	27.9	26.1	24.5	25.9	23.2	23.8	24.3	27.8	24.6	25.2	27.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	27.1	27.0	25.8	27.9	26.1	24.5	25.9	23.2	23.8	24.3	27.8	24.6	25.2	27.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax brkr:RestOfEurope	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

country:DE

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	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	60	70	110	50	43	40	63	57	49	42	65	44	48	41
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	10.7	12.6	17.5	9.9	10.3	9.6	10.6	11.1	10.1	9.3	11.9	9.6	11.0	9.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	10.7	12.6	17.5	9.9	10.3	9.6	10.6	11.1	10.1	9.3	11.9	9.6	11.0	9.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:DE	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

country:US

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	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	159	119	123	120	102	109	150	135	126	117	142	134	108	104
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	28.0	21.5	19.7	23.5	24.2	25.8	25.1	26.0	25.7	25.5	25.7	28.7	24.4	24.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	28.0	21.5	19.7	23.5	24.2	25.8	25.1	26.0	25.7	25.5	25.7	28.7	24.4	24.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:US	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

srt:AsiaPacific

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	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	153	180	195	160	136	137	186	158	153	152	152	134	135	126
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	26.9	32.5	31.2	31.3	32.1	32.4	31.1	30.4	31.4	33.0	27.5	28.8	30.5	29.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	26.9	32.5	31.2	31.3	32.1	32.4	31.1	30.4	31.4	33.0	27.5	28.8	30.5	29.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax srt:AsiaPacific	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Subsegments

brkr:BrukerBioSpinGroup

Period End	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	152	125	120	199	143	150	127	179	139	139	131
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	29.7	29.5	28.5	33.2	27.6	30.8	27.7	32.5	29.9	31.5	30.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	29.7	29.5	28.5	33.2	27.6	30.8	27.7	32.5	29.9	31.5	30.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax brkr:BrukerBioSpinGroup	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

brkr:BrukerCalidGroup

Period End	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	171	132	140	176	158	140	148	153	134	128	131
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	33.5	31.3	33.1	29.4	30.4	28.7	32.1	27.8	28.8	28.8	30.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	33.5	31.3	33.1	29.4	30.4	28.7	32.1	27.8	28.8	28.8	30.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax brkr:BrukerCalidGroup	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

brkr:BrukerNanoGroup

Period End	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	147	125	120	171	169	151	140	166	143	134	123
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	28.8	29.6	28.3	28.5	32.6	30.8	30.5	30.1	30.6	30.3	28.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	28.8	29.6	28.3	28.5	32.6	30.8	30.5	30.1	30.6	30.3	28.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax brkr:BrukerNanoGroup	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TimingOfTransferOfGoodOrService

us-gaap:TransferredAtPointInTime

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	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	492	480	552	442	364	367	537	463	435	410	489	427	405	395
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	86.2	86.5	88.1	86.5	85.8	86.7	89.5	89.0	88.9	89.0	88.4	91.5	91.3	91.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	86.2	86.5	88.1	86.5	85.8	86.7	89.5	89.0	88.9	89.0	88.4	91.5	91.3	91.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TransferredAtPointInTime	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:TransferredOverTime

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	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	78	74	74	69	60	56	62	57	54	50	64	39	38	36
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	13.8	13.5	11.9	13.5	14.2	13.3	10.5	11.0	11.1	11.0	11.6	8.5	8.7	8.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	13.8	13.5	11.9	13.5	14.2	13.3	10.5	11.0	11.1	11.0	11.6	8.5	8.7	8.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:TransferredOverTime	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Revenues

us-gaap:Revenues

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	570	554	627	511	424	424	599	521	490	461	553	466	443	431	530	435	414	384	470	393	371	375	478	396	396	353	508	419	457	423	552	439	454	393	517	447	420	405	475	418	401	357	416	310	300	277
Percentage of Revenues	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	134	131	130	114	102	121	130	125	124	120	117	106	110	110	112	102	102	98	100	96	100	92	103	96	98	94	118	108	115	109	118	105	107	106	124	102	110	104	119	101	97	88	99	72	64	65
Percentage of SellingGeneralAndAdministrativeExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	23.6	23.8	20.8	22.4	24.1	28.6	21.7	24.0	25.4	26.0	21.2	22.8	24.9	25.6	21.1	23.6	24.8	25.5	21.3	24.6	27.1	24.7	21.5	24.3	24.9	26.8	23.3	25.7	25.1	25.8	21.4	24.1	23.5	27.1	24.1	23.0	26.3	25.7	25.1	24.2	24.3	24.8	23.8	23.3	21.3	23.6

Assets

us-gaap:Assets

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31
Value	3087	3034	3049	2879	2943	2961	2771	2352	2349	2242	2128	1889	1806	1830	1948	1961	1912	1839	1808	1797	1720	1739	1730	1842	1820	1772	1864	1910	2003	2027	1988	1936	1801	1811	1856	1800	1750	1797	1710	1670	1699	1623	1549
Percentage of Assets	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:Assets us-gaap:ConsolidationItems

brkr:CorporateReconcilingItemsAndEliminations

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	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	2015-12-31
Value	-4.9	-5.2	-4.2	-6.0	-4.1	-4.8	-4.7	-3.6	-3.6	-4.0	-5.2	-3.2	-3.7	-2.8	-4.9	-2.0	-3.5	-3.0	-7.4	-4.2	-63.5
Percentage of Assets	-0.2	-0.2	-0.1	-0.2	-0.1	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.3	-0.1	-0.2	-0.2	-0.4	-0.2	-3.7
Percentage of Assets	-0.2	-0.2	-0.1	-0.2	-0.1	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.2	-0.3	-0.1	-0.2	-0.2	-0.4	-0.2	-3.7
Percentage of Assets brkr:CorporateReconcilingItemsAndEliminations	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OperatingSegments

Period End	2020-12-31	2019-12-31
Value	2964	2711
Percentage of Assets	97.2	97.8
Percentage of Assets	97.2	97.8
Percentage of Assets us-gaap:OperatingSegments	100.0	100.0

us-gaap:Assets us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, brkr:EnergyAndSuperconTechnologies

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31
Value	98	92	88	76	70	67	64	59	56	53	33	37	40	36	35	34	34	36	36	21	19	79	79	85	88	88	101	107	138	142	146
Percentage of Assets	3.2	3.0	2.9	2.7	2.4	2.3	2.3	2.5	2.4	2.4	1.6	2.0	2.2	2.0	1.8	1.7	1.8	2.0	2.0	1.2	1.1	4.6	4.6	4.6	4.9	5.0	5.4	5.6	6.9	7.0	7.4
Percentage of Assets	3.2	3.0	2.9	2.7	2.4	2.3	2.3	2.5	2.4	2.4	1.6	2.0	2.2	2.0	1.8	1.7	1.8	2.0	2.0	1.2	1.1	4.6	4.6	4.6	4.9	5.0	5.4	5.6	6.9	7.0	7.4
Percentage of Assets us-gaap:OperatingSegments brkr:EnergyAndSuperconTechnologies	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OperatingSegments, brkr:ScientificInstruments

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31
Value	2993	2947	2964	2808	2876	2899	2711	2296	2296	2192	2100	1854	1769	1796	1917	1929	1882	1806	1779	1780	1704	1720	1715	1821	1792	1744	1827	1864	1946	1964	1925
Percentage of Assets	97.0	97.1	97.2	97.6	97.7	97.9	97.8	97.6	97.7	97.8	98.7	98.2	98.0	98.1	98.4	98.4	98.4	98.2	98.4	99.0	99.1	98.9	99.1	98.8	98.4	98.4	98.0	97.6	97.1	96.9	96.8
Percentage of Assets	97.0	97.1	97.2	97.6	97.7	97.9	97.8	97.6	97.7	97.8	98.7	98.2	98.0	98.1	98.4	98.4	98.4	98.2	98.4	99.0	99.1	98.9	99.1	98.8	98.4	98.4	98.0	97.6	97.1	96.9	96.8
Percentage of Assets us-gaap:OperatingSegments brkr:ScientificInstruments	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31
Value	3087	3034	3049	2879	2943	2961	2771	2352	2349	2242	2128	1889	1806	1830	1948	1961	1912	1839	1808	1797	1720	1739	1730	1842	1820	1772	1864	1910	2003	2027	1988	1936	1801	1811	1856	1800	1750	1797	1710	1670	1699	1623	1549
Percentage of LiabilitiesAndStockholdersEquity	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Stockholders Equity

us-gaap:StockholdersEquity

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31
Value	1002	967	961	952	897	915	906	845	860	913	896	816	776	781	725	731	755	724	686	693	663	702	726	760	760	715	765	807	880	862	846	777	718	689	706	692	638	658	621	599	627	568	524
Percentage of StockholdersEquity	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	32.5	31.9	31.5	33.1	30.5	30.9	32.7	35.9	36.6	40.7	42.1	43.2	43.0	42.7	37.2	37.3	39.5	39.4	38.0	38.6	38.6	40.4	41.9	41.3	41.8	40.4	41.1	42.3	43.9	42.5	42.6	40.1	39.9	38.0	38.1	38.5	36.5	36.6	36.3	35.9	36.9	35.0	33.9

Assets Current

us-gaap:AssetsCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31
Value	1968	1946	1925	1826	1957	1990	1796	1434	1406	1343	1304	1261	1182	1240	1358	1336	1299	1264	1275	1266	1215	1225	1231	1386	1354	1304	1366	1399	1465	1476	1431	1372	1263	1277	1309	1244	1212	1245	1194	1169	1167	1115	1051
Percentage of AssetsCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	63.8	64.1	63.1	63.4	66.5	67.2	64.8	61.0	59.9	59.9	61.3	66.8	65.4	67.8	69.7	68.2	67.9	68.7	70.6	70.5	70.6	70.4	71.2	75.2	74.4	73.6	73.3	73.3	73.1	72.8	72.0	70.9	70.1	70.5	70.6	69.2	69.3	69.3	69.8	70.0	68.7	68.7	67.8

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31	2009-12-31	2008-12-31
Value	608	696	681	567	746	795	678	296	282	298	322	270	258	283	325	263	217	277	342	278	232	209	267	331	320	334	319	329	389	454	438	306	250	269	310	242	240	229	246	195	169	193	230	188	187	203	207	166
Percentage of CashAndCashEquivalentsAtCarryingValue	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	19.7	23.0	22.4	19.7	25.4	26.9	24.5	12.6	12.0	13.3	15.1	14.3	14.3	15.5	16.7	13.5	11.4	15.1	18.9	15.5	13.5	12.1	15.4	18.0	17.6	18.9	17.1	17.2	19.5	22.4	22.1	15.8	13.9	14.9	16.7	13.5	13.7	12.8	14.4	11.7	10.0	11.9	14.9	0.0	0.0	0.0	0.0	0.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	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	611	700	685	570	750	798	681	300	286	302	326	274	262	287	328	267	221	280	345	271
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	19.8	23.1	22.5	19.8	25.5	27.0	24.6	12.8	12.2	13.5	15.3	14.5	14.5	15.7	16.9	13.7	11.6	15.3	19.1	15.7

Short Term Investments

us-gaap:ShortTermInvestments

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	97	50	50	50	50	56	6.6	0.0	114
Percentage of ShortTermInvestments	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0
Percentage of Assets	3.2	1.6	1.6	1.7	1.7	1.9	0.2	0.0	5.9

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31
Value	337	326	335	329	324	325	362	358	348	360	357	323	278	313	319	269	240	225	243	223	206	233	234	242	240	227	293	268	279	295	307	297	300	273	289	264	248	261	282	271	273	250	232
Percentage of AccountsReceivableNetCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	10.9	10.7	11.0	11.5	11.0	11.0	13.1	15.3	14.8	16.1	16.8	17.1	15.4	17.1	16.4	13.8	12.6	12.3	13.5	12.4	12.0	13.4	13.6	13.1	13.2	12.8	15.7	14.1	14.0	14.5	15.5	15.4	16.7	15.1	15.6	14.7	14.2	14.6	16.5	16.2	16.1	15.4	15.0

Inventory Net

us-gaap:InventoryNet

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31
Value	730	700	692	695	665	625	577	586	594	541	509	518	509	518	486	515	505	476	440	483	471	460	422	478	486	473	477	566	612	620	589	632	601	621	611	632	620	648	576	601	618	571	511
Percentage of InventoryNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	23.7	23.1	22.7	24.2	22.6	21.1	20.8	24.9	25.3	24.2	23.9	27.5	28.2	28.3	25.0	26.3	26.4	25.9	24.4	26.9	27.4	26.4	24.4	26.0	26.7	26.7	25.6	29.7	30.5	30.6	29.7	32.6	33.4	34.3	32.9	35.2	35.4	36.1	33.7	36.0	36.4	35.2	33.0

Other Assets Current

us-gaap:OtherAssetsCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31
Value	195	172	165	183	170	187	172	186	175	142	115	149	135	125	114	122	113	97	91	118	117	111	106	133	134	111	88	121	116	107	86	136	110	113	92	105	102	102	75	97	101	97	73
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	6.3	5.7	5.4	6.4	5.8	6.3	6.2	7.9	7.4	6.4	5.4	7.9	7.5	6.8	5.9	6.2	5.9	5.3	5.0	6.6	6.8	6.4	6.2	7.2	7.4	6.3	4.8	6.4	5.8	5.3	4.3	7.0	6.1	6.2	5.0	5.8	5.9	5.7	4.4	5.9	6.0	6.0	4.8

Noncurrent Assets

us-gaap:NoncurrentAssets

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2011-12-31	2010-12-31
Value	463	371	270	266	249	233
Percentage of NoncurrentAssets	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	15.2	13.4	12.7	13.7	14.6	15.1

us-gaap:NoncurrentAssets us-gaap:StatementGeographical

brkr:OtherCountry

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2011-12-31	2010-12-31
Value	7.1	8.7	4.5	2.1	4.3	2.9
Percentage of NoncurrentAssets	1.5	2.3	1.7	0.8	1.7	1.2
Percentage of Assets	0.2	0.3	0.2	0.1	0.3	0.2
Percentage of Assets brkr:OtherCountry	0.0	0.0	0.0	0.0	0.0	0.0

brkr:RestOfEurope

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	144	118	78	71
Percentage of NoncurrentAssets	31.3	31.8	29.1	27.0
Percentage of Assets	4.7	4.3	3.7	3.7
Percentage of Assets brkr:RestOfEurope	0.0	0.0	0.0	0.0

country:DE

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2011-12-31	2010-12-31
Value	227	175	137	140	132	126
Percentage of NoncurrentAssets	49.2	47.1	50.6	52.9	53.1	53.9
Percentage of Assets	7.5	6.3	6.4	7.2	7.7	8.1
Percentage of Assets country:DE	0.0	0.0	0.0	0.0	0.0	0.0

country:US

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2011-12-31	2010-12-31
Value	61	53	44	46	44	40
Percentage of NoncurrentAssets	13.2	14.3	16.3	17.3	18.0	17.1
Percentage of Assets	2.0	1.9	2.1	2.4	2.6	2.6
Percentage of Assets country:US	0.0	0.0	0.0	0.0	0.0	0.0

srt:AsiaPacific

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	22	16	6.3	5.4
Percentage of NoncurrentAssets	4.8	4.4	2.3	2.0
Percentage of Assets	0.7	0.6	0.3	0.3
Percentage of Assets srt:AsiaPacific	0.0	0.0	0.0	0.0

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	828	731	692	687	616	603	622	699	664	572	540
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
Percentage of Assets	27.2	26.4	32.5	35.3	34.1	34.9	33.4	35.2	35.8	33.5	34.9

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

brkr:BuildingAndLeaseholdImprovements

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	374	305	299	294	266	261	272	301	278	241	231
Percentage of PropertyPlantAndEquipmentGross	45.3	41.7	43.2	42.9	43.3	43.4	43.7	43.1	41.8	42.1	42.8
Percentage of Assets	12.3	11.0	14.1	15.1	14.7	15.1	14.6	15.2	15.0	14.1	14.9
Percentage of Assets brkr:BuildingAndLeaseholdImprovements	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

brkr:MachineryEquipmentSoftwareAndFurnitureAndFixtures

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	416	400	366	364	323	314	320	362	353	298	281
Percentage of PropertyPlantAndEquipmentGross	50.3	54.7	52.9	53.1	52.4	52.0	51.5	51.9	53.1	52.2	52.0
Percentage of Assets	13.7	14.4	17.2	18.7	17.9	18.1	17.2	18.2	19.0	17.5	18.1
Percentage of Assets brkr:MachineryEquipmentSoftwareAndFurnitureAndFixtures	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:Land

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	36	26	26	28	26	27	29	34	33	32	28
Percentage of PropertyPlantAndEquipmentGross	4.4	3.6	3.9	4.1	4.3	4.6	4.8	5.0	5.1	5.6	5.2
Percentage of Assets	1.2	1.0	1.3	1.4	1.5	1.6	1.6	1.8	1.8	1.9	1.8
Percentage of Assets us-gaap:Land	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	432	425	421	421	377	372	372	399	381	323	307
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
Percentage of Assets	14.2	15.4	19.8	21.6	20.9	21.5	20.0	20.1	20.5	18.9	19.8

Amortization Of Intangible Assets

us-gaap:AmortizationOfIntangibleAssets

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-09-30	2010-06-30	2010-03-31
Value	9.1	8.9	9.1	9.0	9.0	8.7	9.1	9.2	9.9	10	7.4	6.9	7.8	6.8	7.0	8.2	7.5	6.9	5.5	5.4	5.4	5.4	5.2	5.1	5.2	5.2	5.1	5.1	4.8	5.2	5.5	5.1	5.1	5.1	5.8	5.5	5.6	5.1	16	0.8	0.7	3.9	0.6	0.3	0.5
Percentage of AmortizationOfIntangibleAssets	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31
Value	398	384	395	354	335	318	306	278	281	267	270	260	259	270	266	260	252	241	239	239	236	239	231	232	233	228	249	265	293	296	299	297	287	279	283	272	259	261	249	249	265	246	233
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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	12.9	12.7	13.0	12.3	11.4	10.8	11.0	11.8	12.0	11.9	12.7	13.8	14.4	14.8	13.7	13.3	13.2	13.1	13.2	13.3	13.8	13.7	13.4	12.6	12.8	12.9	13.4	13.9	14.6	14.6	15.1	15.4	16.0	15.4	15.3	15.1	14.8	14.6	14.6	14.9	15.6	15.2	15.1

Goodwill

us-gaap:Goodwill

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2010-12-31	2009-12-31
Value	314	313	320	312	295	290	293	282	284	275	275	199	192	171	169	168	165	151	130	131	131	131	130	125	125	124	127	135	126	127	126	115	115	115	116	109	110	100	96	100	98	47
Percentage of Goodwill	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	10.2	10.3	10.5	10.9	10.0	9.8	10.6	12.0	12.1	12.3	13.0	10.6	10.7	9.3	8.7	8.6	8.6	8.2	7.2	7.3	7.6	7.6	7.5	6.8	6.9	7.0	6.9	7.1	6.3	6.4	6.5	6.4	6.4	6.2	6.5	6.3	6.2	5.9	5.8	5.9	6.3	0.0

us-gaap:Goodwill us-gaap:BusinessAcquisition

brkr:CanopyBiosciences

Period End	2020-09-10
Value	12
Percentage of Goodwill	0.0
Percentage of Assets	0.0
Percentage of Assets brkr:CanopyBiosciences	0.0

us-gaap:Goodwill us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass

brkr:CanopyBiosciencesLlc, us-gaap:OrderOrProductionBacklog

Period End	2020-09-10
Value	11
Percentage of Goodwill	0.0
Percentage of Assets	0.0
Percentage of Assets brkr:CanopyBiosciencesLlc us-gaap:OrderOrProductionBacklog	0.0

us-gaap:Goodwill us-gaap:StatementBusinessSegments

brkr:BsiNano

Period End	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31
Value	228	223	209	205	208	203	160	126
Percentage of Goodwill	71.2	71.6	70.9	71.0	71.2	73.9	94.8	96.6
Percentage of Assets	7.5	7.8	7.1	6.9	7.5	9.6	8.3	7.0
Percentage of Assets brkr:BsiNano	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

brkr:ScientificInstruments

Period End	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31
Value	92	88	85	83	84	72	8.9	4.5
Percentage of Goodwill	28.7	28.3	29.0	28.9	28.7	26.1	5.2	3.4
Percentage of Assets	3.0	3.1	2.9	2.8	3.0	3.4	0.5	0.2
Percentage of Assets brkr:ScientificInstruments	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Intangible Assets Net Excluding Goodwill

us-gaap:IntangibleAssetsNetExcludingGoodwill

Period End	2021-06-30	2021-03-31	2020-12-31	2019-12-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2010-12-31
Value	205	213	229	233	218	98	88	76	82	89	92	85	69	60	65	70	74	66	73	78	83	88	95	100	105	108	106	111	117	133	138	147	136	133	137	136
Percentage of IntangibleAssetsNetExcludingGoodwill	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	6.7	7.0	7.5	8.4	10.3	5.2	4.9	4.2	4.2	4.5	4.8	4.7	3.9	3.4	3.8	4.0	4.3	3.6	4.0	4.4	4.5	4.6	4.8	5.0	5.3	5.6	5.9	6.1	6.3	7.4	7.9	8.2	8.0	8.0	8.1	8.8

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2010-12-31
Value	205	213	229	231	218	221	233	234	246	219	218	98	87	76	81	88	91	85	69	60	65	69	74	65	73	77	77	82	89	94	99	102	100	105	111	128	132	141	128	125	116	114
Percentage of FiniteLivedIntangibleAssetsNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	6.7	7.0	7.5	8.0	7.4	7.5	8.4	10.0	10.5	9.8	10.3	5.2	4.8	4.2	4.2	4.5	4.8	4.6	3.8	3.4	3.8	4.0	4.3	3.6	4.0	4.4	4.2	4.3	4.5	4.7	5.0	5.3	5.6	5.8	6.0	7.1	7.6	7.9	7.5	7.5	6.8	7.4

us-gaap:FiniteLivedIntangibleAssetsNet us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2013-12-31
Value	93	96	102	103	97	99	103	104	108	95	93	33	27	20	21	22	23	23	12	10	11	12	12	6.3	6.6	6.8	7.8	10
Percentage of FiniteLivedIntangibleAssetsNet	45.4	45.2	44.9	44.8	44.9	44.8	44.5	44.4	44.1	43.5	42.9	34.0	31.2	27.3	26.5	25.7	25.7	27.7	17.5	18.0	17.5	17.4	16.9	9.6	9.0	8.8	10.1	10.2
Percentage of Assets	3.0	3.2	3.4	3.6	3.3	3.3	3.7	4.4	4.6	4.3	4.4	1.8	1.5	1.1	1.1	1.2	1.2	1.3	0.7	0.6	0.7	0.7	0.7	0.3	0.4	0.4	0.4	0.5
Percentage of Assets us-gaap:CustomerRelationships	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:OtherIntangibleAssets

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30
Value	0.1	0.2	0.2	0.2	0.1	0.1	0.2	0.4	1.1	2.7	1.4	1.3
Percentage of FiniteLivedIntangibleAssetsNet	0.0	0.1	0.1	0.1	0.0	0.0	0.1	0.2	0.5	1.2	1.4	1.5
Percentage of Assets	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.1	0.1	0.1
Percentage of Assets us-gaap:OtherIntangibleAssets	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:TechnologyBasedIntangibleAssets

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2016-12-31
Value	102	106	115	116	110	111	118	119	126	112	112	59	55	51	56	61	55
Percentage of FiniteLivedIntangibleAssetsNet	49.8	50.0	50.3	50.4	50.4	50.5	50.8	51.0	51.2	51.4	51.3	60.4	63.2	68.1	69.1	69.9	79.7
Percentage of Assets	3.3	3.5	3.8	4.0	3.7	3.8	4.3	5.1	5.4	5.0	5.3	3.1	3.1	2.8	2.9	3.2	3.0
Percentage of Assets us-gaap:TechnologyBasedIntangibleAssets	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:TradeNames

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31
Value	9.8	10	10	10	10	10	10	10	11	10.0	10.0	4.0	3.5	3.3	3.3	3.5	3.4	2.6	1.2	1.3	1.3	1.4	1.4
Percentage of FiniteLivedIntangibleAssetsNet	4.8	4.7	4.7	4.7	4.7	4.7	4.6	4.6	4.6	4.6	4.6	4.1	4.0	4.3	4.0	4.0	3.7	3.0	1.7	2.1	2.0	2.0	1.9
Percentage of Assets	0.3	0.3	0.4	0.4	0.3	0.3	0.4	0.5	0.5	0.4	0.5	0.2	0.2	0.2	0.2	0.2	0.2	0.1	0.1	0.1	0.1	0.1	0.1
Percentage of Assets us-gaap:TradeNames	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Deferred Tax Assets Liabilities Net

us-gaap:DeferredTaxAssetsLiabilitiesNet

Period End	2020-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	28	0.2	32	66	43	6.2	-10.9	4.4	-6.3	-6.9
Percentage of DeferredTaxAssetsLiabilitiesNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.9	0.0	1.7	3.7	2.5	0.3	-0.5	0.2	-0.4	-0.4

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

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	67	60	60	62	65	68	74	77
Percentage of OperatingLeaseRightOfUseAsset	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	2.2	2.1	2.0	2.1	2.4	2.9	3.2	3.5

us-gaap:OperatingLeaseRightOfUseAsset us-gaap:BusinessAcquisition

brkr:CanopyBiosciences

Period End	2020-09-10
Value	0.3
Percentage of OperatingLeaseRightOfUseAsset	0.0
Percentage of Assets	0.0
Percentage of Assets brkr:CanopyBiosciences	0.0

brkr:CanopyBiosciencesLlc

Period End	2020-09-10
Value	0.3
Percentage of OperatingLeaseRightOfUseAsset	0.0
Percentage of Assets	0.0
Percentage of Assets brkr:CanopyBiosciencesLlc	0.0

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	200	177	39	16	8.4	14	16	9.9	7.3	5.2	12	13	18
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
Percentage of Assets	6.5	5.9	1.3	0.6	0.4	0.7	0.9	0.6	0.4	0.3	0.7	0.8	1.2

Accounts Payable Current

us-gaap:AccountsPayableCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31
Value	142	152	134	113	119	127	118	116	123	126	104	100	104	104	90	94	91	94	86	93	88	95	72	87	84	87	76	98	102	116	74	82	69	75	69	78	77	87	72	76	82	81	64
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	4.6	5.0	4.4	4.0	4.0	4.3	4.3	5.0	5.3	5.6	4.9	5.3	5.8	5.7	4.7	4.8	4.8	5.1	4.8	5.2	5.1	5.5	4.2	4.7	4.6	4.9	4.1	5.2	5.1	5.7	3.8	4.3	3.9	4.2	3.7	4.3	4.4	4.8	4.2	4.6	4.8	5.0	4.1

Accrued Income Taxes Current

us-gaap:AccruedIncomeTaxesCurrent

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	98	52	36	28	11	25	19	9.5	60	55	61
Percentage of AccruedIncomeTaxesCurrent	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	3.2	1.9	1.7	1.4	0.6	1.5	1.0	0.5	3.3	3.3	4.0

Contract With Customer Liability Current

us-gaap:ContractWithCustomerLiabilityCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2019-12-31	2019-09-30	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31
Value	192	182	189	137	126	124	110	109	125	111
Percentage of ContractWithCustomerLiabilityCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	6.2	6.0	6.2	5.0	5.4	5.8	5.8	6.1	6.8	5.7

Liabilities Current

us-gaap:LiabilitiesCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31
Value	954	943	791	683	749	765	645	643	641	632	599	563	531	558	524	513	493	514	524	552	535	541	554	676	652	540	582	610	628	671	648	646	602	643	681	686	751	771	755	919	901	871	831
Percentage of LiabilitiesCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	30.9	31.1	26.0	23.7	25.5	25.9	23.3	27.3	27.3	28.2	28.2	29.8	29.4	30.5	26.9	26.2	25.8	28.0	29.0	30.7	31.1	31.1	32.0	36.7	35.8	30.5	31.2	31.9	31.4	33.1	32.6	33.4	33.5	35.5	36.7	38.1	43.0	42.9	44.2	55.0	53.0	53.7	53.7

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

Period End	2020-12-31	2019-12-31
Value	21	20
Percentage of OperatingLeaseLiabilityCurrent	100.0	100.0
Percentage of Assets	0.7	0.7

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	54	55	60	55	52	65	60	84	79	69	65
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
Percentage of Assets	1.8	2.0	2.8	2.8	2.9	3.8	3.2	4.3	4.3	4.1	4.3

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31
Value	510	500	465	413	379	401	388	400	379	371	351	337	302	313	322	292	265	271	269	290	272	279	303	288	270	267	301	300	302	302	297	314	294	303	336	304	309	308	320	321	332	309	310
Percentage of OtherLiabilitiesCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	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	16.6	16.5	15.3	14.3	12.9	13.5	14.0	17.0	16.1	16.6	16.5	17.9	16.7	17.1	16.5	14.9	13.9	14.7	14.9	16.2	15.9	16.1	17.5	15.6	14.8	15.1	16.2	15.7	15.1	14.9	15.0	16.2	16.4	16.7	18.1	16.9	17.7	17.1	18.7	19.3	19.6	19.1	20.1

Long Term Debt

us-gaap:LongTermDebt

Period End	2021-06-30	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	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2010-12-31
Value	829	824	844	829	1024	1010	813	518	494	341	354	355	355	355	354	355	355	336	336	337	336	320	319	303	94	102	115
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	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	26.9	27.2	27.7	28.8	34.8	34.1	29.3	22.1	21.0	16.0	20.0	19.0	18.6	17.8	17.5	17.9	18.4	18.7	18.6	18.2	18.7	18.3	17.8	17.7	5.7	6.0	7.5

us-gaap:LongTermDebt us-gaap:DebtInstrument

brkr:CapitalLeaseObligationsAndOtherLoan

Period End	2021-06-30	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	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2011-12-31
Value	5.6	6.7	6.4	5.3	5.1	4.1	4.1	3.8	1.1	7.1	2.5	2.7	3.2	2.3	2.5	3.2	3.5	3.6	4.2	4.4	4.6	4.1
Percentage of LongTermDebt	0.7	0.8	0.8	0.6	0.5	0.4	0.5	0.7	0.2	2.1	0.7	0.8	0.9	0.6	0.7	0.9	1.0	1.1	1.2	1.3	1.4	1.4
Percentage of Assets	0.2	0.2	0.2	0.2	0.2	0.1	0.1	0.2	0.0	0.3	0.1	0.1	0.2	0.1	0.1	0.2	0.2	0.2	0.2	0.2	0.3	0.2
Percentage of Assets brkr:CapitalLeaseObligationsAndOtherLoan	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent

Period End	2021-06-30	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	721	715	842	828	924	914	812	518	493	322
Percentage of LongTermDebtNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	23.4	23.6	27.6	28.8	31.4	30.9	29.3	22.0	21.0	15.2

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31
Value	43	48	51	24	10	9.5
Percentage of DeferredIncomeTaxLiabilitiesNet	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	1.4	1.8	2.4	1.2	0.6	0.5

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	122	122	90	105	102	91	66	40	60	39	39
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	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	4.0	4.4	4.3	5.4	5.7	5.3	3.5	2.0	3.2	2.3	2.5

Minority Interest

us-gaap:MinorityInterest

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2009-12-31
Value	13	14	13	10	9.2	9.0	10	9.5	9.3	8.4	8.5	8.3	8.7	8.8	8.1	8.1	7.4	6.9	6.7	7.0	7.1	7.0	6.8	7.7	6.6	5.8	5.8	5.6	5.1	5.7	4.1	3.5	3.8	3.4	3.1	3.0	2.9	3.5	3.4	3.6	3.4	3.2	2.7	2.2	1.6	1.6
Percentage of MinorityInterest	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.4	0.5	0.4	0.4	0.3	0.3	0.4	0.4	0.4	0.4	0.4	0.4	0.5	0.5	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.3	0.3	0.3	0.3	0.3	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.0	0.0	0.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31
Value	395	393	176	363	320	312	113	264	267	275	99	275	283	275	96	227	225	208	39	199	192	207	31	157	159	156	35	133	135	134	38	154	140	140	22	119	113	120	14	107	107	102	104
Percentage of OtherLiabilitiesNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	12.8	13.0	5.8	12.6	10.9	10.5	4.1	11.2	11.4	12.3	4.7	14.6	15.7	15.1	4.9	11.6	11.8	11.3	2.2	11.1	11.2	11.9	1.8	8.6	8.8	8.8	1.9	7.0	6.7	6.6	1.9	8.0	7.8	7.8	1.2	6.7	6.5	6.7	0.9	6.4	6.3	6.3	6.7

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

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	47	42	42	44	47	50	55	58
Percentage of OperatingLeaseLiabilityNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	1.5	1.5	1.4	1.5	1.7	2.2	2.4	2.6

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

Period End	2020-12-31	2019-12-31	2019-09-30	2019-06-30	2018-12-31
Value	15	15	20	20	19
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.5	0.6	0.9	0.9	0.9

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

Period End	2020-12-31	2019-12-31	2019-09-30	2019-06-30	2018-12-31
Value	10	9.9	15	14	13
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.3	0.4	0.6	0.6	0.6

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

Period End	2020-12-31	2019-12-31	2019-09-30	2019-06-30	2018-12-31
Value	7300000.0	7600000.0	9700000.0	9700000.0	9300000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.2	0.3	0.4	0.4	0.4

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

Period End	2020-12-31	2019-12-31	2019-09-30	2019-06-30	2018-12-31
Value	5600000.0	5400000.0	7600000.0	7800000.0	7300000.0
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.2	0.2	0.3	0.3	0.3

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

Period End	2020-12-31	2019-12-31	2019-09-30	2019-06-30	2018-12-31
Value	10	10	16	17	18
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.4	0.4	0.7	0.7	0.9

Operating Lease Liability

us-gaap:OperatingLeaseLiability

Period End	2020-12-31
Value	68
Percentage of OperatingLeaseLiability	100.0
Percentage of Assets	2.2

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

Period End	2020-12-31	2019-12-31	2019-09-30	2019-06-30	2018-12-31
Value	72	71	75	81	93
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	2.4	2.6	3.2	3.5	4.4

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

Period End	2020-12-31
Value	3700000.0
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	100.0
Percentage of Assets	0.1

Stockholders Equity

us-gaap:StockholdersEquity

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31
Value	1002	967	961	952	897	915	906	845	860	913	896	816	776	781	725	731	755	724	686	693	663	702	726	760	760	715	765	807	880	862	846	777	718	689	706	692	638	658	621	599	627	568	524
Percentage of StockholdersEquity	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	32.5	31.9	31.5	33.1	30.5	30.9	32.7	35.9	36.6	40.7	42.1	43.2	43.0	42.7	37.2	37.3	39.5	39.4	38.0	38.6	38.6	40.4	41.9	41.3	41.8	40.4	41.1	42.3	43.9	42.5	42.6	40.1	39.9	38.0	38.1	38.5	36.5	36.6	36.3	35.9	36.9	35.0	33.9

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2009-12-31	2008-12-31
Value	1015	981	974	962	906	924	917	854	870	921	905	825	785	790	733	739	763	731	693	700	670	709	732	768	767	721	771	813	885	868	850	780	722	692	709	695	641	662	624	603	630	571	527	418	312
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	32.9	32.3	32.0	33.4	30.8	31.2	33.1	36.3	37.0	41.1	42.5	43.7	43.5	43.2	37.6	37.7	39.9	39.8	38.3	39.0	39.0	40.8	42.3	41.7	42.2	40.7	41.4	42.6	44.2	42.8	42.8	40.3	40.1	38.2	38.2	38.6	36.7	36.8	36.5	36.1	37.1	35.2	34.0	0.0	0.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

brkr:RedeemableNoncontrollingInterest

Period End	2021-06-30	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31
Value	0.3	21	20	22	22	22
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	0.0	2.3	2.4	2.5	2.4	2.5
Percentage of Assets	0.0	0.8	0.9	0.9	1.0	1.1
Percentage of Assets brkr:RedeemableNoncontrollingInterest	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:AccumulatedDefinedBenefitPlansAdjustment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	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	2016-09-30	2016-06-30	2015-12-31
Value	-42.4	-42.4	-45.7	-38.0	-38.1	-38.4	-52.9	-28.1	-29.3	-29.1	-29.9	-42.9	-43.1	-45.7	-45.2	-51.8	-46.2	-46.8	-47.4
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	-4.2	-4.3	-4.7	-3.9	-4.2	-4.2	-5.8	-3.3	-3.4	-3.2	-3.3	-5.2	-5.5	-5.8	-6.2	-7.5	-6.6	-7.0	-6.5
Percentage of Assets	-1.4	-1.4	-1.5	-1.3	-1.3	-1.3	-1.9	-1.2	-1.2	-1.3	-1.4	-2.3	-2.4	-2.5	-2.3	-2.9	-2.6	-2.7	-2.7
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:AccumulatedOtherComprehensiveIncome

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	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	2016-09-30	2016-06-30	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31	2009-12-31	2008-12-31
Value	4.3	-12.1	3.7	-5.2	-13.5	-23.3	-25.5	-18.8	15	3.3	17	12	14	51	27	-75.9	-15.4	-28.7	-44.2	28	182	137	142	152	153	137
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	0.4	-1.2	0.4	-0.5	-1.5	-2.5	-2.8	-2.2	1.8	0.4	1.9	1.5	1.9	6.5	3.7	-11.0	-2.2	-4.3	-6.0	3.7	21.5	19.4	22.8	28.9	36.7	44.1
Percentage of Assets	0.1	-0.4	0.1	-0.2	-0.5	-0.8	-0.9	-0.8	0.7	0.1	0.8	0.7	0.8	2.8	1.4	-4.2	-0.9	-1.7	-2.6	1.5	9.2	7.4	8.3	9.8	0.0	0.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossDerivativeQualifyingAsHedgeExcludedComponentIncludingPortionAttributableToNoncontrollingInterest

Period End	2021-06-30	2020-12-31
Value	-42.7	-91.5
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	-4.2	-9.4
Percentage of Assets	-1.4	-3.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncomeLossDerivativeQualifyingAsHedgeExcludedComponentIncludingPortionAttributableToNoncontrollingInterest	0.0	0.0

us-gaap:AccumulatedTranslationAdjustment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	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	2016-09-30	2016-06-30	2015-12-31
Value	89	30	49	32	24	15	27	9.3	44	32	46	55	57	96	72	-24.1	30	18	3.2
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	8.8	3.1	5.1	3.4	2.7	1.6	3.0	1.1	5.1	3.5	5.2	6.7	7.4	12.3	9.8	-3.5	4.4	2.7	0.4
Percentage of Assets	2.9	1.0	1.6	1.1	0.8	0.5	1.0	0.4	1.9	1.4	2.2	2.9	3.2	5.3	3.7	-1.3	1.7	1.1	0.2
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:AdditionalPaidInCapital

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-03-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31	2009-12-31
Value	225	220	216	210	207	203	199	193	188	182	176	161	155	124	102	81	63	48	36	21	8.4
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	22.2	22.5	22.2	21.9	22.9	22.0	21.8	22.7	21.6	19.8	19.5	20.4	21.3	18.0	13.9	10.5	7.5	6.8	5.8	4.1	2.0
Percentage of Assets	7.3	7.3	7.1	7.3	7.0	6.9	7.2	8.2	8.0	8.1	8.3	8.8	8.0	6.9	5.9	4.3	3.2	2.6	2.1	1.4	0.0
Percentage of Assets us-gaap:AdditionalPaidInCapital	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:CommonStock

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-03-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31	2009-12-31	2008-12-31
Value	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.7	1.6	1.6	1.6
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.3	0.3	0.4	0.5
Percentage of Assets	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.0	0.0
Percentage of Assets 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	0.0	0.0	0.0	0.0	0.0

us-gaap:NoncontrollingInterest

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-03-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31	2009-12-31	2008-12-31
Value	13	14	13	10	9.2	9.0	10	9.5	9.3	8.4	8.5	8.8	8.1	6.7	6.8	5.8	4.1	3.1	3.4	2.7	1.6	0.8
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1.3	1.4	1.3	1.1	1.0	1.0	1.1	1.1	1.1	0.9	0.9	1.1	1.1	1.0	0.9	0.8	0.5	0.4	0.5	0.5	0.4	0.3
Percentage of Assets	0.4	0.5	0.4	0.4	0.3	0.3	0.4	0.4	0.4	0.4	0.4	0.5	0.4	0.4	0.4	0.3	0.2	0.2	0.2	0.2	0.0	0.0
Percentage of Assets us-gaap:NoncontrollingInterest	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:Parent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-03-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31	2009-12-31	2008-12-31
Value	1002	967	961	952	897	915	906	845	860	913	896	781	725	686	726	765	846	706	621	524	417	311
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	98.7	98.6	98.7	98.9	99.0	99.0	98.9	98.9	98.9	99.1	99.1	98.9	98.9	99.0	99.1	99.2	99.5	99.6	99.5	99.5	99.6	99.7
Percentage of Assets	32.5	31.9	31.5	33.1	30.5	30.9	32.7	35.9	36.6	40.7	42.1	42.7	37.2	38.0	41.9	41.1	42.6	38.1	36.3	33.9	0.0	0.0
Percentage of Assets us-gaap:Parent	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:RetainedEarnings

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-03-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31	2009-12-31	2008-12-31
Value	1508	1457	1406	1343	1295	1277	1274	1212	1157	1127	1102	968	942	885	757	655	599	519	441	349	253	172
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	148.6	148.4	144.4	139.6	142.9	138.2	139.0	141.8	133.0	122.3	121.8	122.6	128.4	127.7	103.3	85.0	70.5	73.1	70.7	66.2	60.6	55.2
Percentage of Assets	48.9	48.0	46.1	46.7	44.0	43.1	46.0	51.5	49.2	50.3	51.8	52.9	48.3	48.9	43.8	35.2	30.1	28.0	25.8	22.5	0.0	0.0
Percentage of Assets us-gaap:RetainedEarnings	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:TreasuryStock

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-03-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31	2009-12-31	2008-12-31
Value	-738.1	-699.8	-667.0	-598.8	-593.8	-543.8	-543.8	-543.8	-501.5	-401.5	-401.5	-401.3	-401.2	-249.3	-90.9	-0.9	-0.6	-0.2	-0.2	-0.2	-0.1	-0.1
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	-72.7	-71.3	-68.5	-62.2	-65.5	-58.8	-59.3	-63.6	-57.6	-43.6	-44.4	-50.8	-54.7	-36.0	-12.4	-0.1	-0.1	-0.0	-0.0	-0.0	-0.0	-0.0
Percentage of Assets	-23.9	-23.1	-21.9	-20.8	-20.2	-18.4	-19.6	-23.1	-21.3	-17.9	-18.9	-21.9	-20.6	-13.8	-5.3	-0.0	-0.0	-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	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	216	199	176	155	124	102	81	63	48	36	21
Percentage of AdditionalPaidInCapitalCommonStock	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	7.1	7.2	8.3	8.0	6.9	5.9	4.3	3.2	2.6	2.1	1.4

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2012-09-30	2012-06-30	2011-12-31	2010-12-31
Value	1406	1274	1102	942	885	757	655	599	519	506	466	441	349
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
Percentage of Assets	46.1	46.0	51.8	48.3	48.9	43.8	35.2	30.1	28.0	28.1	26.7	25.8	22.5

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2011-12-31	2010-12-31	2009-12-31	2008-12-31
Value	4.3	-12.1	3.7	-5.2	-13.5	-23.3	-25.5	-18.8	15	3.3	17	12	14	51	27	10	-13.0	-60.2	-75.9	-15.4	-28.7	-11.8	-44.2	-7.7	0.2	-36.0	28	98	181	185	182	150	114	109	137	142	152	153	137
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.1	-0.4	0.1	-0.2	-0.5	-0.8	-0.9	-0.8	0.7	0.1	0.8	0.7	0.8	2.8	1.4	0.5	-0.7	-3.3	-4.2	-0.9	-1.7	-0.7	-2.6	-0.4	0.0	-2.0	1.5	5.2	9.1	9.1	9.2	7.8	6.3	6.0	7.4	8.3	9.8	0.0	0.0

Treasury Stock Value

us-gaap:TreasuryStockValue

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31
Value	738	699	667	598	593	543	543	543	501	401	401	401	401	401	401	380	293	249	249	234	208	174	90	25	18	0.9	0.9	0.9	0.6	0.6	0.6	0.6	0.4	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2
Percentage of TreasuryStockValue	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	23.9	23.1	21.9	20.8	20.2	18.4	19.6	23.1	21.3	17.9	18.9	21.3	22.2	21.9	20.6	19.4	15.3	13.5	13.8	13.1	12.1	10.0	5.3	1.4	1.0	0.1	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Minority Interest

us-gaap:MinorityInterest

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2009-12-31
Value	13	14	13	10	9.2	9.0	10	9.5	9.3	8.4	8.5	8.3	8.7	8.8	8.1	8.1	7.4	6.9	6.7	7.0	7.1	7.0	6.8	7.7	6.6	5.8	5.8	5.6	5.1	5.7	4.1	3.5	3.8	3.4	3.1	3.0	2.9	3.5	3.4	3.6	3.4	3.2	2.7	2.2	1.6	1.6
Percentage of MinorityInterest	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of Assets	0.4	0.5	0.4	0.4	0.3	0.3	0.4	0.4	0.4	0.4	0.4	0.4	0.5	0.5	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.3	0.3	0.3	0.3	0.3	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.0	0.0	0.0

Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue

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	3.6	3.4	4.1	2.8	3.0	3.5	2.6	2.7	3.3	2.4	2.5
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
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

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital

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	3.6	3.4	4.1	2.8	3.0	3.5	2.6	2.7	3.3	2.4	2.5
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
Percentage of Assets	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Percentage of Assets us-gaap:AdditionalPaidInCapital	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:Parent

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	3.6	3.4	4.1	2.8	3.0	3.5	2.6	2.7	3.3	2.4	2.5
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
Percentage of Assets	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Percentage of Assets us-gaap:Parent	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	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	2011-06-30	2011-03-31	2010-06-30	2010-03-31
Value	21	98	203	82	11	35	136	52	10	14	132	27	36	43	103	35	-17.2	32	90	35	3.8	-29.4	47	5.5
Percentage of NetCashProvidedByUsedInOperatingActivities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	3.8	17.7	32.4	16.1	2.8	8.3	22.7	10.1	2.2	3.1	23.9	5.9	8.1	10.1	19.5	8.1	-4.1	8.5	19.3	9.1	0.9	-8.2	15.8	2.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	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	2011-06-30	2011-03-31	2010-06-30	2010-03-31
Value	-71.4	-24.0	-28.8	-48.2	-15.1	-100.6	-39.2	-12.6	-79.9	-26.7	-156.3	-29.1	-46.1	108	44	47	-50.7	-71.3	-40.3	19	-22.4	-10.1	-43.1	-5.4
Percentage of NetCashProvidedByUsedInInvestingActivities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	-12.5	-4.3	-4.6	-9.4	-3.6	-23.7	-6.5	-2.4	-16.3	-5.8	-28.2	-6.2	-10.4	25.0	8.4	10.9	-12.2	-18.5	-8.6	4.8	-5.6	-2.8	-14.3	-1.9

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	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	2011-06-30	2011-03-31	2010-06-30	2010-03-31
Value	-44.9	-38.1	-74.3	-225.5	-53.1	191	277	-19.5	50	-8.8	76	14	-4.8	-198.8	-89.5	-38.9	1.7	-32.3	26	-10.5	-9.9	-4.1	-4.6	-4.3
Percentage of NetCashProvidedByUsedInFinancingActivities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	-7.9	-6.9	-11.8	-44.1	-12.5	45.1	46.3	-3.7	10.3	-1.9	13.8	3.1	-1.1	-46.1	-16.9	-8.9	0.4	-8.4	5.5	-2.7	-2.5	-1.1	-1.5	-1.5

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	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	-88.7	14	114	-179.8	-48.5	117	381	13	-16.1	-23.7	51	12	-25.3	-41.1	61	46	-59.3	-65.2
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	-15.5	2.7	18.3	-35.2	-11.4	27.6	63.7	2.6	-3.3	-5.1	9.3	2.6	-5.7	-9.5	11.5	10.7	-14.3	-16.9

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	-8.7	4.9	-23.0	1.6	-2.2	1.1	-2.0	-0.2	0.0	0.3	15	-5.5	0.0	-2.6	-11.4	0.1	0.9	-1.3	-3.2	2.7	-0.1	-4.2	3.9	0.7	1.7	-9.9
Percentage of DeferredIncomeTaxExpenseBenefit	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	21	22	21	20	19	19	18	18	19	19	16	15	16	15	15	17	16	15	13	13	13	13	13	13	13	13	12	17	14	15	15	15	15	15	16	13	15	13	13	13	13	11	12	9.1	7.2	7.5
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	9.3	-0.8	-3.9	-2.6	-4.8	-29.5	-3.0	18	-16.6	6.0	23	43	-26.6	-10.0	47	25	8.7	-25.6	23	14	-23.1	-7.2	-7.3	4.9	8.9	-51.5	36	7.4	-16.1	-12.8	9.6	-11.2	29	-8.7	23	11	-7.7	-28.9	14	10	18	10	15	20	-4.9	-4.5
Percentage of IncreaseDecreaseInAccountsReceivable	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	26	41	-18.1	12	36	61	-20.7	11	26	43	-19.8	10	12	32	-30.9	0.9	5.5	31	-30.2	13	31	28	-35.3	1.8	2.3	36	-51.5	8.5	0.4	38	-40.6	13	-15.1	37	-23.4	14	6.1	52	-2.9	32	37	44	-8.2	27	17	31
Percentage of IncreaseDecreaseInInventories	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Increase Decrease In Other Operating Capital Net

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	13	17	-23.1	1.6	-10.2	20	13	10	8.7	17	-11.5	1.7	7.9	-2.3	-1.0	-2.7	2.8	-5.5	-4.5	-11.5	1.1	3.3	14	2.7	5.2	11	-10.4	-3.2	8.9	13	-36.3	21	2.0	11	-10.0	-20.9	-11.7	46	8.5	-10.8	-20.5	31	35	-24.3	-6.7	0.4
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	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	2011-06-30	2011-03-31	2010-06-30	2010-03-31
Value	21	98	203	82	11	35	136	52	10	14	132	27	36	43	103	35	-17.2	32	90	35	3.8	-29.4	47	5.5
Percentage of NetCashProvidedByUsedInOperatingActivities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	3.8	17.7	32.4	16.1	2.8	8.3	22.7	10.1	2.2	3.1	23.9	5.9	8.1	10.1	19.5	8.1	-4.1	8.5	19.3	9.1	0.9	-8.2	15.8	2.0

Net Income Loss

us-gaap:NetIncomeLoss

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-06-30	2010-03-31
Value	57	56	68	54	24	10	68	61	36	30	78	43	31	27	-3.4	37	23	21	69	46	14	23	61	11	21	6.5	26	5.5	16	8.7	35	16	22	5.4	12	39	9.9	15	39	19	22	11	22	16
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	10.1	10.2	11.0	10.6	5.7	2.5	11.4	11.8	7.4	6.7	14.1	9.3	7.0	6.3	-0.6	8.5	5.6	5.6	14.7	11.8	3.9	6.3	12.8	3.0	5.5	1.8	5.1	1.3	3.6	2.1	6.4	3.8	5.0	1.4	2.5	8.9	2.4	3.7	8.2	4.7	5.5	3.2	7.5	5.8

Profit Loss

us-gaap:ProfitLoss

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	58	57	71	55	24	10	68	61	37	30	77	44	31	27	-3.0	37	24	21	69	47	14	23	62	12	23	6.9	26	6.3	16	10.0	35	16	23	5.7	13	39	9.9	15	39	20	22	11	30	27	22	16
Percentage of ProfitLoss	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	10.3	10.4	11.4	10.8	5.7	2.5	11.5	11.8	7.5	6.7	14.1	9.5	7.1	6.3	-0.6	8.6	5.8	5.6	14.7	11.9	4.0	6.3	13.0	3.3	5.8	2.0	5.2	1.5	3.7	2.4	6.5	3.8	5.1	1.4	2.6	8.9	2.4	3.7	8.3	4.8	5.6	3.3	7.2	9.0	7.6	5.8

Share Based Compensation

us-gaap:ShareBasedCompensation

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	3.9	3.8	5.1	4.5	3.1	3.3	-0.5	4.0	3.0	3.1	3.1	3.3	2.4	2.5	2.6	3.1	2.7	2.6	2.6	2.5	2.1	2.2	2.2	2.2	1.4	2.2	2.3	2.1	3.0	2.0	1.8	1.6	1.4	1.8	1.9	2.1	1.9	1.9	2.1	2.0	2.0	1.8	1.9	1.7	1.7	1.6
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	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	2011-06-30	2011-03-31	2010-06-30	2010-03-31
Value	-71.4	-24.0	-28.8	-48.2	-15.1	-100.6	-39.2	-12.6	-79.9	-26.7	-156.3	-29.1	-46.1	108	44	47	-50.7	-71.3	-40.3	19	-22.4	-10.1	-43.1	-5.4
Percentage of NetCashProvidedByUsedInInvestingActivities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	-12.5	-4.3	-4.6	-9.4	-3.6	-23.7	-6.5	-2.4	-16.3	-5.8	-28.2	-6.2	-10.4	25.0	8.4	10.9	-12.2	-18.5	-8.6	4.8	-5.6	-2.8	-14.3	-1.9

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-02-26	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	22	24	28	17	20	12	30	28	16	18	10	20	11	9.0	8.5	12	10	9.6	11	11	8.8	9.2	8.0	11	9.4	7.7	5.7	7.1	9.9	7.6	9.2	9.0	10	16	14	23	19	19	10	16	7.2	21	9.9	11	9.8	5.3	5.4
Percentage of PaymentsToAcquirePropertyPlantAndEquipment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	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	2011-06-30	2011-03-31	2010-06-30	2010-03-31
Value	-44.9	-38.1	-74.3	-225.5	-53.1	191	277	-19.5	50	-8.8	76	14	-4.8	-198.8	-89.5	-38.9	1.7	-32.3	26	-10.5	-9.9	-4.1	-4.6	-4.3
Percentage of NetCashProvidedByUsedInFinancingActivities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax	-7.9	-6.9	-11.8	-44.1	-12.5	45.1	46.3	-3.7	10.3	-1.9	13.8	3.1	-1.1	-46.1	-16.9	-8.9	0.4	-8.4	5.5	-2.7	-2.5	-1.1	-1.5	-1.5

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-22	2017-09-22	2017-06-23	2017-03-24	2016-12-23	2016-09-23	2016-06-24	2016-03-24
Value	6.0	6.1	6.1	6.2	6.1	6.2	6.2	6.2	6.3	6.3	6.3	6.3	6.2	6.3	6.3	6.3	6.4	6.4	6.4	6.4	6.5	6.5
Percentage of PaymentsOfDividendsCommonStock	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31	2019-09-30	2017-12-31	2017-09-30	2016-12-31	2016-09-30	2015-12-31	2015-09-30
Value	38	32	68	4.4	0.0	42	22	88	16	25	65	7.7
Percentage of PaymentsForRepurchaseOfCommonStock	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Effective Income Tax Rate Continuing Operations

us-gaap:EffectiveIncomeTaxRateContinuingOperations

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30
Value	26.6	32.2	3.5	26.6	0.227	0.215	0.058	0.261	0.223	0.201	-0.027	0.324	0.273	0.235	0.357	0.207	0.205	0.313	0.087	-0.093	0.169	0.169	-0.113	0.453	0.091	0.41	-0.015	0.3	0.492	0.363	-0.009	0.369	0.347	0.313	0.06	0.307	0.487	0.439	-0.062	0.49	0.315	0.435	0.033	0.27	0.32
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:EmployeeStockOption

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	25.32	24.96	23.5	23.39	23.43	23.03	21.79	21.58	21.41	21.33	20.53	20.47	20.16
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	121	101	65	69	77	66	29	19	23	28	21
Percentage of DeferredTaxAssetsNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2011-12-31	2010-12-31	2009-12-31
Value	26	24	22	19	18	16	15	6.5	6.6	6.5	6.6	4.4	4.5	4.5	4.4	6.1	5.9	5.9	6.2	7.3	10	15	33	28	30	30	27	31	33	34	32	36	36	35	42	34	27	23
Percentage of UnrecognizedTaxBenefits	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

Period End	2020-12-31	2019-12-31	2018-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	6.6	4.2	4.3	0.5	37	57	42	39	33	37
Percentage of DeferredTaxAssetsValuationAllowance	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

brkr:BusinessCombinationConsiderationAgreed us-gaap:BusinessAcquisition

brkr:BusinessCombinationConsiderationAgreed

brkr:CanopyBiosciences

Period End	2020-09-10
Value	24
Percentage of BusinessCombinationConsiderationAgreed	100.0

brkr:CanopyBiosciencesLlc

Period End	2020-09-10
Value	24
Percentage of BusinessCombinationConsiderationAgreed	100.0

brkr:BusinessCombinationConsiderationTransferredWorkingCapitalAdjustment us-gaap:BusinessAcquisition

brkr:BusinessCombinationConsiderationTransferredWorkingCapitalAdjustment

brkr:CanopyBiosciences

Period End	2020-09-10
Value	300000.0
Percentage of BusinessCombinationConsiderationTransferredWorkingCapitalAdjustment	100.0

brkr:CanopyBiosciencesLlc

Period End	2020-09-10
Value	-300000.0
Percentage of BusinessCombinationConsiderationTransferredWorkingCapitalAdjustment	-100.0

brkr:ComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToNoncontrollingInterestAndRedeemableNoncontrollingInterest

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30
Value	73	41	64	34	12	26
Percentage of ComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToNoncontrollingInterestAndRedeemableNoncontrollingInterest	100.0	100.0	100.0	100.0	100.0	100.0

brkr:CrossCurrencySwapInterestEffect

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31
Value	1300000.0	1400000.0	1400000.0	1800000.0	2600000.0
Percentage of CrossCurrencySwapInterestEffect	100.0	100.0	100.0	100.0	100.0

brkr:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityTranslationAdjustments us-gaap:FairValueByLiabilityClass

brkr:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityTranslationAdjustments

brkr:ContingentConsideration

Period End	2021-06-30	2021-03-31	2020-12-31
Value	0	-100000.0	200000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityTranslationAdjustments	0.0	100.0	100.0

us-gaap:HybridInstrument

Period End	2021-06-30	2021-03-31	2020-12-31
Value	100000.0	-500000.0	600000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityTranslationAdjustments	0.0	500.0	300.0

brkr:InterestAcquiredInJointVenture us-gaap:StatementEquityComponents

brkr:InterestAcquiredInJointVenture

brkr:RedeemableNoncontrollingInterest

Period End	2021-06-30
Value	300000.0
Percentage of InterestAcquiredInJointVenture	100.0

brkr:NetIncomeLossIncludingPortionAttributableToRedeemableNoncontrollingInterest

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	-58.7	-57.8	-55.3	-24.2	-10.6	-61.7	37	30	-44.1	31	27
Percentage of NetIncomeLossIncludingPortionAttributableToRedeemableNoncontrollingInterest	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

brkr:NetIncomeLossIncludingPortionAttributableToRedeemableNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31
Value	-1.1	-1.1	-1.0	-0.1	-0.1	-0.4	-0.8	-0.1
Percentage of NetIncomeLossIncludingPortionAttributableToRedeemableNoncontrollingInterest	1.9	1.9	1.8	0.4	0.9	0.6	-2.1	-0.3

us-gaap:Parent

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	-57.6	-56.7	-54.3	-24.1	-10.5	-61.3	36	30	-43.4	31	27
Percentage of NetIncomeLossIncludingPortionAttributableToRedeemableNoncontrollingInterest	98.1	98.1	98.2	99.6	99.1	99.4	97.9	99.7	98.4	99.0	98.5

us-gaap:RetainedEarnings

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	-57.6	-56.7	-54.3	-24.1	-10.5	-61.3	36	30	-43.4	31	27
Percentage of NetIncomeLossIncludingPortionAttributableToRedeemableNoncontrollingInterest	98.1	98.1	98.2	99.6	99.1	99.4	97.9	99.7	98.4	99.0	98.5

brkr:OtherComprehensiveIncomeLossNetOfTaxExcludingRedeemableNoncontrollingInterest

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	14	-16.0	8.7	9.9	2.0	-34.4	12	-13.9	-2.3	-36.8	24
Percentage of OtherComprehensiveIncomeLossNetOfTaxExcludingRedeemableNoncontrollingInterest	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

brkr:OtherComprehensiveIncomeLossNetOfTaxExcludingRedeemableNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome

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	16	-15.8	8.3	9.8	2.2	-34.2	12	-13.7	-2.1	-36.4	24
Percentage of OtherComprehensiveIncomeLossNetOfTaxExcludingRedeemableNoncontrollingInterest	111.6	98.8	95.4	99.0	110.0	99.4	99.2	98.6	91.3	98.9	99.6

us-gaap:NoncontrollingInterest

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31
Value	-1.7	-0.2	0.4	0.1	-0.2	-0.2	0.1	-0.2
Percentage of OtherComprehensiveIncomeLossNetOfTaxExcludingRedeemableNoncontrollingInterest	-11.6	1.2	4.6	1.0	-10.0	0.6	0.8	1.4

us-gaap:Parent

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	16	-15.8	8.3	9.8	2.2	-34.2	12	-13.7	-2.1	-36.4	24
Percentage of OtherComprehensiveIncomeLossNetOfTaxExcludingRedeemableNoncontrollingInterest	111.6	98.8	95.4	99.0	110.0	99.4	99.2	98.6	91.3	98.9	99.6

brkr:OtherMiscellaneousNonrecurringExpense

Period End	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	2016-09-30	2016-06-30
Value	100000.0	-100000.0	300000.0	400000.0	800000.0	500000.0	900000.0	600000.0	2000000.0	0	200000.0	0	600000.0
Percentage of OtherMiscellaneousNonrecurringExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	0.0	100.0

brkr:RestructuringChargesExcludingCostOfSales

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31
Value	1.4	1.3	7.6	1.7	1.2	1.5	1.6	-7.4	0.8	1.1	0.9	2.0	0.6	3.3	3.7	3.0	2.4	1.5	3.4	2.8	1.8	1.8	2.8	3.0	1.0	1.3	4.1	2.8	4.0	0.2	4.6	8.6	1.8	3.2
Percentage of RestructuringChargesExcludingCostOfSales	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

brkr:StockIssuedDuringPeriodValueRestrictedStockUnitsVested

Period End	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2018-09-30
Value	-1200000.0	-100000.0	-100000.0	-800000.0	-400000.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockUnitsVested	100.0	100.0	100.0	100.0	100.0

brkr:StockIssuedDuringPeriodValueRestrictedStockUnitsVested us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital

Period End	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2018-09-30
Value	-1200000.0	-100000.0	-100000.0	-800000.0	-400000.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockUnitsVested	100.0	100.0	100.0	100.0	100.0

us-gaap:Parent

Period End	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2018-09-30
Value	-1200000.0	-100000.0	-100000.0	-800000.0	-400000.0
Percentage of StockIssuedDuringPeriodValueRestrictedStockUnitsVested	100.0	100.0	100.0	100.0	100.0

brkr:UpfrontPayment

Period End	2021-03-05
Value	4000000.0
Percentage of UpfrontPayment	100.0

us-gaap:BusinessCombinationAcquisitionRelatedCosts

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2015-12-31	2015-09-30	2015-06-30	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30
Value	2300000.0	900000.0	3400000.0	900000.0	-800000.0	-1100000.0	-1300000.0	900000.0	1200000.0	3800000.0	1100000.0	1200000.0	100000.0	1000000.0	700000.0	500000.0	2900000.0	400000.0	900000.0	200000.0	7900000.0	-4700000.0	400000.0	-2900000.0	800000.0	1200000.0	300000.0	600000.0	2000000.0	1100000.0	100000.0	400000.0	0	-1300000.0	800000.0	400000.0	300000.0	300000.0	0	600000.0	100000.0	1000000.0	400000.0
Percentage of BusinessCombinationAcquisitionRelatedCosts	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0

us-gaap:BusinessCombinationConsiderationTransferred1 us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationConsiderationTransferred1

brkr:AcquisitionsIn2019

Period End	2029-04-02	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-04-02	2019-06-30	2019-02-02	2019-03-31
Value	52	0.0	18	10	8.9	52	0.0	52	18
Percentage of BusinessCombinationConsiderationTransferred1	100.0	0.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0

brkr:AcquisitionsIn2020

Period End	2020-12-31	2020-09-30
Value	0.0	3.0
Percentage of BusinessCombinationConsiderationTransferred1	0.0	0.0

brkr:AcquisitionsIn2021

Period End	2021-06-30	2021-03-31
Value	0.0	8.5
Percentage of BusinessCombinationConsiderationTransferred1	0.0	0.0

brkr:CanopyBiosciences

Period End	2020-09-10
Value	24
Percentage of BusinessCombinationConsiderationTransferred1	0.0

brkr:CanopyBiosciencesLlc

Period End	2020-09-10
Value	24
Percentage of BusinessCombinationConsiderationTransferred1	0.0

us-gaap:BusinessCombinationConsiderationTransferred1 us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

brkr:AcuitySpatialGenomicsInc, brkr:BsiNano

Period End	2021-06-30	2021-03-31
Value	0.0	4.5
Percentage of BusinessCombinationConsiderationTransferred1	0.0	0.0

brkr:GlycopathInc, brkr:ScientificInstruments

Period End	2021-06-30	2021-03-31
Value	0.0	2.0
Percentage of BusinessCombinationConsiderationTransferred1	0.0	0.0

brkr:IntegratedProteomicsApplicationsInc, brkr:ScientificInstruments

Period End	2020-08-07
Value	3.0
Percentage of BusinessCombinationConsiderationTransferred1	0.0

brkr:IonPathInc, brkr:ScientificInstruments

Period End	2021-06-30	2021-03-31
Value	0.0	2.0
Percentage of BusinessCombinationConsiderationTransferred1	0.0	0.0

us-gaap:BusinessCombinationConsiderationTransferredLiabilitiesIncurred us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationConsiderationTransferredLiabilitiesIncurred

brkr:CanopyBiosciences

Period End	2020-09-10
Value	500000.0
Percentage of BusinessCombinationConsiderationTransferredLiabilitiesIncurred	100.0

brkr:CanopyBiosciencesLlc

Period End	2020-09-10
Value	500000.0
Percentage of BusinessCombinationConsiderationTransferredLiabilitiesIncurred	100.0

us-gaap:CashAcquiredFromAcquisition us-gaap:BusinessAcquisition

us-gaap:CashAcquiredFromAcquisition

brkr:CanopyBiosciences

Period End	2020-09-10
Value	500000.0
Percentage of CashAcquiredFromAcquisition	100.0

brkr:CanopyBiosciencesLlc

Period End	2020-09-10
Value	500000.0
Percentage of CashAcquiredFromAcquisition	100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

Period End	2021-06-30	2021-03-31	2019-12-31
Value	74	121	184
Percentage of ContractWithCustomerLiabilityRevenueRecognized	100.0	100.0	100.0

us-gaap:DerivativeGainLossOnDerivativeNet us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation

us-gaap:DerivativeGainLossOnDerivativeNet

brkr:CrossCurrencyAndInterestRateSwapAgreements, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:ComprehensiveIncome

Period End	2021-06-30	2020-06-30
Value	0.7	-2.9
Percentage of DerivativeGainLossOnDerivativeNet	100.0	100.0

brkr:CrossCurrencyAndInterestRateSwapAgreements, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:InterestIncome

Period End	2021-06-30	2021-03-31	2020-06-30
Value	-1.2	-1.1	-0.8
Percentage of DerivativeGainLossOnDerivativeNet	-171.4	0.0	27.6

brkr:CrossCurrencyAndInterestRateSwapAgreements, us-gaap:NetInvestmentHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:ComprehensiveIncome

Period End	2021-06-30	2020-06-30
Value	0.4	-8.3
Percentage of DerivativeGainLossOnDerivativeNet	57.1	286.2

brkr:CrossCurrencyAndInterestRateSwapAgreements, us-gaap:NetInvestmentHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:InterestIncome

Period End	2021-06-30	2021-03-31	2020-06-30	2020-03-31
Value	2.5	2.5	2.6	2.6
Percentage of DerivativeGainLossOnDerivativeNet	357.1	0.0	-89.7	0.0

us-gaap:CurrencySwap, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:InterestIncome

Period End	2020-09-30
Value	-1.1
Percentage of DerivativeGainLossOnDerivativeNet	0.0

us-gaap:LongTermDebt, us-gaap:NetInvestmentHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:ComprehensiveIncome

Period End	2021-06-30	2020-06-30
Value	-0.7	-6.2
Percentage of DerivativeGainLossOnDerivativeNet	-100.0	213.8

us-gaap:DerivativeGainLossOnDerivativeNet us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation, us-gaap:OtherComprehensiveIncomeLocation

brkr:CrossCurrencyAndInterestRateSwapAgreements, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:OtherComprehensiveIncome

Period End	2021-03-31	2020-03-31
Value	9.9	-19.0
Percentage of DerivativeGainLossOnDerivativeNet	0.0	0.0

brkr:CrossCurrencyAndInterestRateSwapAgreements, us-gaap:NetInvestmentHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:OtherComprehensiveIncome

Period End	2021-06-30	2021-03-31	2020-06-30	2020-03-31
Value	1.3	17	1.8	29
Percentage of DerivativeGainLossOnDerivativeNet	185.7	0.0	-62.1	0.0

us-gaap:CurrencySwap, us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:OtherComprehensiveIncome

Period End	2020-09-30
Value	-0.2
Percentage of DerivativeGainLossOnDerivativeNet	0.0

us-gaap:DerivativeGainLossOnDerivativeNet us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation

us-gaap:CurrencySwap, us-gaap:DesignatedAsHedgingInstrument, us-gaap:InterestIncome

Period End	2020-09-30
Value	2.5
Percentage of DerivativeGainLossOnDerivativeNet	0.0

us-gaap:EmbeddedDerivativeFinancialInstruments, us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedge, us-gaap:InterestIncome

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30
Value	0.0	-0.4	-0.3	-0.1	0.3	0.6	-0.1
Percentage of DerivativeGainLossOnDerivativeNet	0.0	0.0	0.0	0.0	-10.3	0.0	0.0

us-gaap:ForeignExchangeForward, us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedge, us-gaap:InterestIncome

Period End	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	1.1	-5.0	2.5	-0.2	0.3	-0.5	1.7	-1.0
Percentage of DerivativeGainLossOnDerivativeNet	157.1	0.0	0.0	0.0	-10.3	0.0	0.0	0.0

us-gaap:DerivativeGainLossOnDerivativeNet us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation, us-gaap:OtherComprehensiveIncomeLocation

us-gaap:CurrencySwap, us-gaap:DesignatedAsHedgingInstrument, us-gaap:OtherComprehensiveIncome

Period End	2020-09-30
Value	-21.9
Percentage of DerivativeGainLossOnDerivativeNet	0.0

us-gaap:DerivativeGainLossOnDerivativeNet us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation

us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument

Period End	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31
Value	8.8	0.6	-1.3	-3.7	-19.0
Percentage of DerivativeGainLossOnDerivativeNet	0.0	0.0	0.0	127.6	0.0

us-gaap:NetInvestmentHedging, us-gaap:DesignatedAsHedgingInstrument

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31
Value	2.4	20	-24.0	-19.4	-5.7	32
Percentage of DerivativeGainLossOnDerivativeNet	342.9	0.0	0.0	0.0	196.6	0.0

us-gaap:DerivativeGainLossOnDerivativeNet us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation

us-gaap:CashFlowHedging, us-gaap:DesignatedAsHedgingInstrument, us-gaap:ComprehensiveIncome

Period End	2021-06-30	2020-06-30
Value	0.7	-2.9
Percentage of DerivativeGainLossOnDerivativeNet	100.0	100.0

us-gaap:NetInvestmentHedging, us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedge, us-gaap:ComprehensiveIncome

Period End	2021-06-30	2020-06-30
Value	0.4	-17.4
Percentage of DerivativeGainLossOnDerivativeNet	57.1	600.0

us-gaap:DerivativeGainLossOnDerivativeNet us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship, us-gaap:HedgingDesignation, us-gaap:IncomeStatementLocation, us-gaap:OtherComprehensiveIncomeLocation

us-gaap:NetInvestmentHedging, us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedge, us-gaap:ComprehensiveIncome, us-gaap:OtherComprehensiveIncome

Period End	2021-06-30	2020-06-30
Value	-0.3	-14.5
Percentage of DerivativeGainLossOnDerivativeNet	-42.9	500.0

us-gaap:DerivativeGainLossOnDerivativeNet us-gaap:HedgingDesignation

us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedge

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	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	1.1	-5.4	2.2	-0.3	0.6	27	1.4	-1.1	0.6	2.1	-0.2	1.1	-2.9	-4.9	-0.3	-2.5	3.2	0.3
Percentage of DerivativeGainLossOnDerivativeNet	157.1	0.0	0.0	0.0	-20.7	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:DividendsCommonStockCash

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	6.0	6.1	6.3	6.1	7.4	6.2	6.3	6.3	6.3	6.2	6.3
Percentage of DividendsCommonStockCash	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DividendsCommonStockCash us-gaap:StatementEquityComponents

us-gaap:Parent

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	6.0	6.1	6.3	6.1	6.2	6.2	6.3	6.3	6.3	6.2	6.3
Percentage of DividendsCommonStockCash	100.0	100.0	100.0	100.0	83.8	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RetainedEarnings

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	6.0	6.1	6.3	6.1	6.2	6.2	6.3	6.3	6.3	6.2	6.3
Percentage of DividendsCommonStockCash	100.0	100.0	100.0	100.0	83.8	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	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	5.7	-21.0	15	11	7.9	-8.7	7.0	-6.8	2.8	-2.4	-1.1	-0.7	-10.5	5.8	2.4	2.7	6.9	5.8
Percentage of EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31	2019-09-30	2019-06-30	2019-03-31
Value	0	21.0	0	20.79	0	0	0	0.21
Percentage of EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.0	100.0	0.0	100.0	0.0	0.0	0.0	100.0

us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate us-gaap:StatementGeographical

country:CH

Period End	2021-06-30	2021-03-31	2020-12-31	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31
Value	0	20.0	2.0	0.15	-0.05	0	0	0.2
Percentage of EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.0	95.2	0.0	0.0	0.0	0.0	0.0	95.2

country:DE

Period End	2021-06-30	2021-03-31	2020-12-31	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31
Value	0	30.0	0	0.3	0	0	0	0.3
Percentage of EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.0	142.9	0.0	0.0	0.0	0.0	0.0	142.9

us-gaap:EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate

Period End	2021-06-30	2021-03-31	2020-12-31
Value	-0.1	5.1	-2.8
Percentage of EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	100.0	100.0	100.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings us-gaap:FairValueByLiabilityClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings

brkr:ContingentConsideration

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30
Value	400000.0	-500000.0	-800000.0	-100000.0	-1200000.0	-2300000.0	900000.0	-500000.0	400000.0	1500000.0	-2000000.0	0	800000.0	0	-7700000.0	0	4700000.0	0	-3100000.0	100000.0	900000.0	0	100000.0	0	-1300000.0	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	0.0	100.0	0.0	100.0	0.0	100.0	0.0	100.0	100.0	100.0	0.0	100.0	0.0	100.0	0.0

us-gaap:HybridInstrument

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31
Value	400000.0	400000.0	400000.0	300000.0	300000.0	600000.0	400000.0	400000.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	100.0	-80.0	-400.0	-25.0	-13.0	-120.0	100.0	26.7

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases us-gaap:FairValueByLiabilityClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases

brkr:ContingentConsideration

Period End	2020-12-31
Value	0.0
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	0.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements us-gaap:FairValueByLiabilityClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements

brkr:ContingentConsideration

Period End	2021-06-30	2021-03-31	2020-12-31
Value	0.0	0.4	1.3
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	0.0	100.0	100.0

us-gaap:GoodwillAcquiredDuringPeriod

Period End	2021-03-31
Value	0.3
Percentage of GoodwillAcquiredDuringPeriod	100.0

us-gaap:GoodwillForeignCurrencyTranslationGainLoss

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31
Value	1.6	-6.8	7.2	6.0	3.5	-3.0
Percentage of GoodwillForeignCurrencyTranslationGainLoss	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:GoodwillForeignCurrencyTranslationGainLoss us-gaap:StatementBusinessSegments

brkr:BsiNano

Period End	2020-12-31	2020-09-30	2020-06-30	2020-03-31
Value	3.7	3.0	1.8	-2.7
Percentage of GoodwillForeignCurrencyTranslationGainLoss	51.4	50.0	51.4	90.0

brkr:ScientificInstruments

Period End	2020-12-31	2020-09-30	2020-06-30	2020-03-31
Value	3.5	3.0	1.7	-0.3
Percentage of GoodwillForeignCurrencyTranslationGainLoss	48.6	50.0	48.6	10.0

us-gaap:ImpairmentOfLongLivedAssetsHeldForUse

Period End	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2015-06-30
Value	200000.0	700000.0	0	1200000.0	1800000.0
Percentage of ImpairmentOfLongLivedAssetsHeldForUse	100.0	100.0	0.0	100.0	100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31
Value	-22.5	35	12	0.8	-35.2	19	5.6	7.5	-8.2	11	6.2	12	0.1	-13.7	42	15	-21.7	-2.7	-8.1	0.8	-3.3	-9.0	7.8	12	-0.5	-6.8	-15.7	15	-13.0	21	1.3	19	-6.3	-7.8	15	-6.7	4.5	-8.8	5.1
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:IncreaseDecreaseInAccruedIncomeTaxesPayable

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31
Value	-3.1	10	52	-6.0	11	-15.0	19	12	-11.3	-7.9	12	7.2	-12.4	-3.3	11	1.3	-1.2	-6.4	-7.0	11	-17.7	-13.7	27	12	-9.8	-6.9	20	-23.6	6.8	2.0	-26.0	5.2	-8.9	-4.0	8.2	4.9	-1.2	-14.3	5.3
Percentage of IncreaseDecreaseInAccruedIncomeTaxesPayable	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

Period End	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	-0.7	2.5	19	10	5.3	16	13	-8.2
Percentage of IncreaseDecreaseInContractWithCustomerLiability	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:IncreaseDecreaseInDeferredRevenue

Period End	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	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31
Value	5.9	14	-3.2	0.5	-1.0	20	-2.4	0.5	2.3	-4.9	3.8	5.9	4.2	-3.5	2.4	0.9	1.9	-2.4	-3.8	9.2	5.0	-0.1	2.0	-3.1	10	0.3	-3.1	5.0	3.3	-3.7	2.1	2.9	3.2	-1.8	-2.1	-3.7	12
Percentage of IncreaseDecreaseInDeferredRevenue	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:InformationTechnologyAndDataProcessing

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31
Value	800000.0	700000.0	700000.0	500000.0	400000.0	900000.0	900000.0	800000.0	1100000.0	900000.0	1300000.0	1100000.0	900000.0	1500000.0	1300000.0	800000.0	900000.0	1200000.0	700000.0	1600000.0	1700000.0	2200000.0	2700000.0	2600000.0	1900000.0	1700000.0	1600000.0	1100000.0	700000.0	600000.0
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:LossContingencyDamagesAwardedValue

Period End	2020-07-08	2019-06-16
Value	11000.0	20000.0
Percentage of LossContingencyDamagesAwardedValue	100.0	100.0

us-gaap:MinorityInterestDecreaseFromRedemptions

Period End	2020-09-30	2020-06-30	2020-03-31	2019-09-30
Value	0	0	-500000.0	-1200000.0
Percentage of MinorityInterestDecreaseFromRedemptions	0.0	0.0	100.0	100.0

us-gaap:NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsNonredeemable

Period End	2021-06-30	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	-700000.0	900000.0	2500000.0	1400000.0	300000.0	-100000.0	800000.0	200000.0	900000.0
Percentage of NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsNonredeemable	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30
Value	-0.9	2.6	-9.4	-0.9	-0.9	13	-25.7	0.8	-0.6	0.4	11	-0.5	1.9	-1.0	4.7	-4.6	2.6	-0.9	-7.0	-0.4	-3.0	2.0	-23.5	1.2	-1.1	-0.2	-23.7	1.1
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AccumulatedOtherComprehensiveIncome

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30
Value	15	-16.5	7.2	7.3	8.6	1.2	-7.6	-34.6	11	-14.1	2.8	-2.8	-37.1	23	14	17	51	14	-61.9	12
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-1722.2	-634.6	-76.6	-811.1	-955.6	8.9	29.6	-4325.0	-1950.0	-3525.0	24.3	560.0	-1952.6	-2370.0	310.6	-373.9	1988.5	-1622.2	884.3	-3075.0

us-gaap:AccumulatedTranslationAdjustment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30
Value	-32.4	-19.1	16	8.2	9.5	-12.3	18	-35.4	12	-14.5	-8.7	-2.3	-39.0	24	9.9	21	49	15	-54.9	12	-16.5	31	-15.8	-10.2	35	-72.5	-46.9	-84.1
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	3600.0	-734.6	-176.6	-911.1	-1055.6	-91.1	-70.4	-4425.0	-2050.0	-3625.0	-75.7	460.0	-2052.6	-2470.0	210.6	-473.9	1888.5	-1722.2	784.3	-3175.0	550.0	1570.0	67.2	-850.0	-3245.5	36250.0	197.9	-7645.5

us-gaap:OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent

Period End	2021-06-30	2020-06-30
Value	0.4	-17.4
Percentage of OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent	100.0	100.0

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax

Period End	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31
Value	27	23	-22.1	11	10
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	100.0	100.0	100.0	100.0	100.0

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31
Value	0.0	3.3	7.4	-0.1	-0.3	-14.5	24	-1.1	0.2	-0.8	-13.0	-0.2	-2.5	0.4	-1.7	1.9	-0.2	5.6	-0.6	-1.6	1.0	20	-2.3	-0.5	-8.3	23	-1.1	0.0	0.1	-16.6	1.0	-0.7	-1.0	15	0.2	-0.9	0.6
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OtherNoncashIncomeExpense

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31	2016-09-30	2016-06-30	2016-03-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30
Value	-15900000.0	-4900000.0	-6300000.0	-7500000.0	-11700000.0	4400000.0	-1600000.0	-4500000.0	8900000.0	-6600000.0	-18200000.0	-4300000.0	-500000.0	-1300000.0	-3700000.0	-7300000.0	-1700000.0	-8600000.0	6400000.0	-7300000.0	8400000.0	-9900000.0	-500000.0	-700000.0	-900000.0	-1800000.0	-600000.0	1200000.0	-3300000.0	-800000.0	1000000.0	-1800000.0	400000.0	-400000.0	-100000.0	-600000.0	-600000.0	1200000.0
Percentage of OtherNoncashIncomeExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OtherNonrecurringExpense

Period End	2021-06-30	2021-03-31	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30
Value	4.4	3.0	1.8	6.2	1.6	-5.3	3.9	6.3	4.3	5.2	2.2	7.8	5.9	4.3	6.4	3.1	5.2	4.6	12	4.0	-3.5	8.9	1.8	13	-0.3	12	5.6	3.6	7.5	10	4.5	6.1	4.4	2.5	3.6	3.4	2.3	2.9	2.4	2.1	1.5	1.9	1.9
Percentage of OtherNonrecurringExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OtherNonrecurringIncomeExpense

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30
Value	4.4	3.0	12	4.2	1.8	6.2	1.6	-5.3	3.9	6.3	4.3	5.2
Percentage of OtherNonrecurringIncomeExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:PaymentForContingentConsiderationLiabilityFinancingActivities

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	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	2017-09-30
Value	0	400000.0	1300000.0	5000000.0	900000.0	300000.0	600000.0	1000000.0	3600000.0	1000000.0	0	0	0	0
Percentage of PaymentForContingentConsiderationLiabilityFinancingActivities	0.0	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

us-gaap:PaymentsForProceedsFromHedgeInvestingActivities

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31
Value	2000000.0	-3500000.0	-1500000.0	-3600000.0	-1600000.0	-1900000.0
Percentage of PaymentsForProceedsFromHedgeInvestingActivities	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:PaymentsForRestructuring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31
Value	4.0	5.2	4.3	0.9	3.1	1.7	1.5	2.0	1.9	1.4	1.7	1.1	3.4	3.0	5.4	4.0	7.5	5.2	3.3	3.6	6.1	5.0	6.8	5.6	4.0	6.5
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:PaymentsForRestructuring us-gaap:RestructuringCostAndReserve

us-gaap:EmployeeSeverance

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31
Value	3.9	4.7	3.9000000000000004	0.8999999999999996	2.4	0.8	1.2	1.7	1.4	1.0	0.5	0.2	2.2	1.5	3.1	3.0	5.9	3.6	2.3	2.2	3.9	3.5	4.6	2.7	2.2	5.1
Percentage of PaymentsForRestructuring	97.5	90.4	90.7	100.0	77.4	47.1	80.0	85.0	73.7	71.4	29.4	18.2	64.7	50.0	57.4	75.0	78.7	69.2	69.7	61.1	63.9	70.0	67.6	48.2	55.0	78.5

us-gaap:FacilityClosing

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31
Value	0.1	0.5	0.4	0.0	0.7	0.9	0.3	0.3	0.5	0.4	1.2	0.9	1.2	1.5	2.3	1.0	1.1	1.2	1.0	1.4	1.2	1.5	2.2	2.9	1.8	1.3
Percentage of PaymentsForRestructuring	2.5	9.6	9.3	0.0	22.6	52.9	20.0	15.0	26.3	28.6	70.6	81.8	35.3	50.0	42.6	25.0	14.7	23.1	30.3	38.9	19.7	30.0	32.4	51.8	45.0	20.0

us-gaap:PaymentsOfFinancingCosts

Period End	2020-12-31	2020-09-30	2012-12-31	2012-09-30	2011-12-31	2011-09-30
Value	0	0	0	0	0	100000.0
Percentage of PaymentsOfFinancingCosts	0.0	0.0	0.0	0.0	0.0	100.0

us-gaap:PaymentsToAcquireBusinessesGross us-gaap:BusinessAcquisition

us-gaap:PaymentsToAcquireBusinessesGross

brkr:CanopyBiosciences

Period End	2020-09-10
Value	24
Percentage of PaymentsToAcquireBusinessesGross	100.0

brkr:CanopyBiosciencesLlc

Period End	2020-09-10
Value	24
Percentage of PaymentsToAcquireBusinessesGross	100.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2014-12-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30
Value	0.0	4.0	0.4	34	2.6	22	11	7.1	55	16	136	17	37	0.4	0.5	7.1	18	39	23	0.0	0.0	0.0	9.5	1.3	0.8	5.3	0.0	0.0	21	13	0.0	1.1	0.2	232	0.0
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	0.0	0.0	100.0	100.0	100.0	100.0	0.0	0.0	100.0	100.0	0.0	100.0	100.0	100.0	0.0

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired us-gaap:BusinessAcquisition

brkr:AcquisitionsIn2020

Period End	2020-12-31	2020-09-30
Value	0.0	3.0
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired	0.0	8.8

brkr:AcquisitionsIn2021

Period End	2021-06-30	2021-03-31
Value	0.0	8.5
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired	0.0	212.5

us-gaap:PaymentsToAcquireBusinessesNetOfCashAcquired us-gaap:BusinessAcquisition, us-gaap:StatementBusinessSegments

brkr:AcuitySpatialGenomicsInc, brkr:BsiNano

Period End	2021-06-30	2021-03-31
Value	0.0	4.5
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired	0.0	112.5

brkr:GlycopathInc, brkr:ScientificInstruments

Period End	2021-06-30	2021-03-31
Value	0.0	2.0
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired	0.0	50.0

brkr:IntegratedProteomicsApplicationsInc, brkr:ScientificInstruments

Period End	2020-08-07
Value	3.0
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired	0.0

brkr:IonPathInc, brkr:ScientificInstruments

Period End	2021-06-30	2021-03-31
Value	0.0	2.0
Percentage of PaymentsToAcquireBusinessesNetOfCashAcquired	0.0	50.0

us-gaap:PaymentsToAcquireShortTermInvestments

Period End	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30
Value	50	50	0.0	50	0.0	0.0
Percentage of PaymentsToAcquireShortTermInvestments	100.0	100.0	0.0	100.0	0.0	0.0

us-gaap:PaymentsToMinorityShareholders

Period End	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2018-12-31	2018-09-30	2017-12-31	2017-09-30	2017-06-30	2016-12-31	2016-09-30	2015-12-31	2015-09-30	2014-12-31	2014-09-30	2013-12-31	2012-12-31	2012-09-30	2011-12-31	2011-09-30	2010-12-31	2010-09-30
Value	0	0	0	1200000.0	0	900000.0	500000.0	0	500000.0	0	700000.0	800000.0	0	0	0	0	0	0	0	0	0	0
Percentage of PaymentsToMinorityShareholders	0.0	0.0	0.0	100.0	0.0	100.0	100.0	0.0	100.0	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

us-gaap:ProceedsFromIssuanceOfCommonStock

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31	2010-09-30	2010-06-30	2010-03-31
Value	1.1	1.1	2.2	-0.8	1.3	0.6	2.8	2.3	2.7	3.1	0.5	1.9	4.4	2.6	4.7	6.1	8.0	1.2	1.3	0.6	2.1	7.5	3.8	0.8	2.9	3.3	0.6	2.5	1.8	3.0	0.2	3.5	0.4	4.1	0.9	0.2	1.6	1.8	0.2	0.1	0.5	2.5	3.3	0.5	0.6	1.6
Percentage of ProceedsFromIssuanceOfCommonStock	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ProceedsFromLinesOfCredit

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	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30
Value	0.0	0.0	100	197	0.0	50	160	40	101	20	0.0	75	46	33	47	22	41	36	25	7.0
Percentage of ProceedsFromLinesOfCredit	0.0	0.0	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	100.0	100.0

us-gaap:ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments

Period End	2020-12-31	2020-09-30	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	50	50	0.0	0.0	0.0	117	52	64	10	58
Percentage of ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments	100.0	100.0	0.0	0.0	0.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ProceedsFromOtherDebt

Period End	2021-06-30	2021-03-31	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31
Value	-200000.0	300000.0	-700000.0	1200000.0	-100000.0	300000.0	200000.0
Percentage of ProceedsFromOtherDebt	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31	2019-09-30	2018-12-31	2018-09-30	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30
Value	1.2	1.2	0.1	0.0	0.0	10	0.3	0.0	4.6	0.0	0.3	6.6	0.2	0.0	0.3	0.6	0.2	0.0	0.2	1.8	0.5	0.6	0.6	0.2	0.0	0.6	0.8	0.8	0.9	0.8	2.5	2.8
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment	100.0	100.0	100.0	0.0	0.0	100.0	100.0	0.0	100.0	0.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ProfessionalFees

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31
Value	-100000.0	100000.0	1100000.0	300000.0	1100000.0	3400000.0
Percentage of ProfessionalFees	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustment

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31
Value	-900000.0	-700000.0	-1700000.0	-1000000.0	-1200000.0	-1000000.0	-900000.0	-400000.0	-400000.0	-400000.0	-1500000.0	-700000.0	-700000.0	-500000.0	-1900000.0	-6300000.0	4500000.0	-1100000.0	-1400000.0	-1000000.0	-2600000.0	1000000.0	-2800000.0	-1100000.0	-1600000.0	-8500000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AccumulatedOtherComprehensiveIncome

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30
Value	-900000.0	-700000.0	-1700000.0	-1000000.0	-1200000.0	-1000000.0	-900000.0	-400000.0	-400000.0	-400000.0	-1500000.0	-700000.0	-700000.0	-500000.0	-1900000.0	-6300000.0	4500000.0	-1100000.0	-1400000.0	-1000000.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RepaymentsOfLinesOfCredit

Period End	2020-12-31	2020-09-30	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31
Value	0.0	208	311	22	2.6	25	15	0.0	7.5	195	65	25	0.0	40
Percentage of RepaymentsOfLinesOfCredit	0.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	0.0	100.0

us-gaap:RepaymentsOfOtherDebt

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	1300000.0	400000.0	100000.0	0	300000.0	200000.0	100000.0	4500000.0	100000.0	700000.0	100000.0
Percentage of RepaymentsOfOtherDebt	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RestructuringCharges

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2012-12-31	2012-09-30	2012-06-30
Value	1.6	2.4	10	1.9	1.5	2.3	2.8	-6.8	1.4	4.0	2.7	2.5	0.7	3.5	7.6	4.6	3.8	0.1	8.0	5.3	3.7	3.8	8.1	12	5.2	3.3	6.8	16	10	2.4	11	8.6	1.8	-0.9	0.3	0.6
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:RestructuringCharges us-gaap:IncomeStatementLocation

us-gaap:CostOfSales

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31
Value	0.2	1.1	0.2	0.3	0.8	0.6	0.6	2.9	0.5	0.1	0.2	1.6	1.4	-1.4	2.5	1.9	2.0	5.3	9.7	4.2	2.0	2.7	13	6.7	2.2
Percentage of RestructuringCharges	12.5	45.8	10.5	20.0	34.8	-8.8	42.9	72.5	20.0	14.3	5.7	34.8	36.8	-1400.0	47.2	51.4	52.6	65.4	76.4	80.8	60.6	39.7	82.7	62.6	91.7

us-gaap:OtherExpense

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31
Value	1.4	1.3	1.7	1.2	1.5	-7.4	0.8	1.1	2.0	0.6	3.3	3.0	2.4	1.5	2.8	1.8	1.8	2.8	3.0	1.0	1.3	4.1	2.8	4.0	0.2
Percentage of RestructuringCharges	87.5	54.2	89.5	80.0	65.2	108.8	57.1	27.5	80.0	85.7	94.3	65.2	63.2	1500.0	52.8	48.6	47.4	34.6	23.6	19.2	39.4	60.3	17.3	37.4	8.3

us-gaap:RestructuringCharges us-gaap:RestructuringCostAndReserve

brkr:ProvisionsForExcessInventory

Period End	2020-12-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30
Value	0.0	-0.1	0.1	0.1	0.2	2.2	0.0	-0.2	0.3	1.6	0.3	0.9	0.2	1.6	3.4	1.5	0.5	-0.3	10
Percentage of RestructuringCharges	0.0	-3.6	-1.5	7.1	5.0	28.9	0.0	-5.3	300.0	20.0	5.7	24.3	5.3	19.8	26.8	28.8	15.2	-4.4	62.3

us-gaap:EmployeeSeverance

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31
Value	1.4	2.2	9.6	1.6	0.9	1.5	2.0	0.5	0.5	3.1	1.6	0.4	1.1	1.0	1.3	3.6	1.3	1.5	2.7	4.6	1.0	2.3	5.6	6.2	2.8	1.3	4.2	4.1	5.8	1.4	7.1
Percentage of RestructuringCharges	87.5	91.7	95.0	84.2	60.0	65.2	71.4	-7.4	35.7	77.5	59.3	16.0	157.1	28.6	17.1	78.3	34.2	1500.0	33.8	86.8	27.0	60.5	69.1	48.8	53.8	39.4	61.8	25.3	54.2	58.3	60.7

us-gaap:FacilityClosing

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31
Value	0.2	0.2	0.5	0.1	0.6	0.8	0.9	-7.4	0.8	0.7	1.1	2.1	-0.4	2.5	4.1	1.1	2.7	-1.7	3.7	0.4	1.8	1.3	0.9	3.1	0.9	1.5	2.9	2.0	2.9	1.0	2.5
Percentage of RestructuringCharges	12.5	8.3	5.0	5.3	40.0	34.8	32.1	108.8	57.1	17.5	40.7	84.0	-57.1	71.4	53.9	23.9	71.1	-1700.0	46.2	7.5	48.6	34.2	11.1	24.4	17.3	45.5	42.6	12.3	27.1	41.7	21.4

us-gaap:RestructuringReserveTranslationAndOtherAdjustment

Period End	2021-06-30	2021-03-31	2020-09-30
Value	0	-100000.0	-200000.0
Percentage of RestructuringReserveTranslationAndOtherAdjustment	0.0	100.0	100.0

us-gaap:RestructuringReserveTranslationAndOtherAdjustment us-gaap:RestructuringCostAndReserve

brkr:ProvisionsForExcessInventory

Period End	2021-06-30	2021-03-31	2020-09-30
Value	0	-100000.0	-200000.0
Percentage of RestructuringReserveTranslationAndOtherAdjustment	0.0	100.0	100.0

us-gaap:EmployeeSeverance

Period End	2020-09-30
Value	-100000.0
Percentage of RestructuringReserveTranslationAndOtherAdjustment	50.0

us-gaap:FacilityClosing

Period End	2020-09-30
Value	100000.0
Percentage of RestructuringReserveTranslationAndOtherAdjustment	-50.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue

us-gaap:RestrictedStock

Period End	2020-09-30	2019-12-31	2019-09-30	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30
Value	11	-0.5	-0.4	0.7	0.9	0.1	0.1	0.8	1.3	0.1	0.1	0.1	1.2	0.2	0.0	0.0	0.8
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	0.0	100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

Period End	2020-12-31	2019-12-31
Value	0.1	-0.43
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	100.0	100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:EmployeeStockOption

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	3.9	1.7	0.5	0.3	4.9	3.4	6.9	3.1	0.8	1.9	2.5	2.8	5.3	4.2	5.9	0.8
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:EmployeeStockOption

Period End	2020-12-31
Value	-0.62
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice

us-gaap:EmployeeStockOption

Period End	2020-12-31
Value	0
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	0.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice

us-gaap:EmployeeStockOption

Period End	2020-12-31
Value	0
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0.0

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures

us-gaap:CommonStock

Period End	2021-06-30	2021-03-31	2020-06-30	2020-03-31
Value	1780.0	21821.0	3510.0	40516.0
Percentage of StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures	100.0	100.0	100.0	100.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:CommonStock

Period End	2021-06-30	2021-03-31	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31
Value	64783.0	65312.0	61968.0	30182.0	152920.0	145610.0	167180.0	127000.0	221460.0	180890.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31
Value	1.0	1.2	0.5	1.3	0.7	3.1	2.7	3.1	2.5	4.2	2.9
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31
Value	1.0	1.2	0.5	1.3	0.7	3.1	2.7	3.1	2.5	4.2	2.9
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:Parent

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31
Value	1.0	1.2	0.5	1.3	0.7	3.1	2.7	3.1	2.5	4.2	2.9
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:StockRepurchasedDuringPeriodShares us-gaap:StatementEquityComponents

us-gaap:StockRepurchasedDuringPeriodShares

us-gaap:CommonStock

Period End	2021-06-30	2021-03-31	2020-06-30	2019-09-30	2019-06-30
Value	-555580.0	-530730.0	-1214300.0	-1022500.0	-2300600.0
Percentage of StockRepurchasedDuringPeriodShares	100.0	100.0	100.0	100.0	100.0

us-gaap:TreasuryStock

Period End	2021-06-30	2021-03-31	2020-06-30	2019-09-30	2019-06-30
Value	555580.0	530730.0	1214300.0	1022500.0	2300600.0
Percentage of StockRepurchasedDuringPeriodShares	-100.0	-100.0	-100.0	-100.0	-100.0

us-gaap:StockRepurchasedDuringPeriodValue

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2019-09-30	2019-06-30
Value	38	32	5.0	50	42	100
Percentage of StockRepurchasedDuringPeriodValue	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:StockRepurchasedDuringPeriodValue us-gaap:StatementEquityComponents

us-gaap:Parent

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2019-09-30	2019-06-30
Value	38	32	5.0	50	42	100
Percentage of StockRepurchasedDuringPeriodValue	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:TreasuryStock

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2019-09-30	2019-06-30
Value	38	32	5.0	50	42	100
Percentage of StockRepurchasedDuringPeriodValue	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:TreasuryStockSharesAcquired us-gaap:ShareRepurchaseProgram

us-gaap:TreasuryStockSharesAcquired

brkr:May2019RepurchaseProgram

Period End	2021-03-31	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-05-31	2019-06-30
Value	530730.0	-2108800.0	3323100.0	0	1022500.0	4537400.0	2300600.0
Percentage of TreasuryStockSharesAcquired	100.0	100.0	100.0	0.0	100.0	100.0	100.0

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:ShareRepurchaseProgram

us-gaap:TreasuryStockValueAcquiredCostMethod

brkr:May2019RepurchaseProgram

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31	2019-09-30	2019-05-31	2019-06-30
Value	1.7	32	68	5.0	0.0	42	192	100
Percentage of TreasuryStockValueAcquiredCostMethod	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0

brkr:May2021RepurchaseProgram

Period End	2021-06-30
Value	36
Percentage of TreasuryStockValueAcquiredCostMethod	2152.9

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense

Period End	2021-06-30	2020-12-31	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	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-09-30	2010-06-30
Value	200000.0	-1500000.0	100000.0	100000.0	200000.0	100000.0	100000.0	100000.0	0	0	0	-300000.0	0	0	0	-3300000.0	900000.0	1000000.0	100000.0	300000.0	0	300000.0	800000.0	-100000.0	200000.0	0	0	-100000.0	300000.0	-700000.0	300000.0	1900000.0	-100000.0	100000.0	100000.0	600000.0	300000.0	200000.0	200000.0	200000.0	300000.0
Percentage of UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	0.0	0.0	100.0	0.0	0.0	0.0	100.0	100.0	100.0	100.0	100.0	0.0	100.0	100.0	100.0	100.0	0.0	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-09-30	2019-06-30	2019-03-31	2018-09-30	2018-06-30	2018-03-31	2017-09-30	2017-06-30	2017-03-31	2016-09-30	2016-06-30	2016-03-31	2015-09-30	2015-06-30	2015-03-31	2014-09-30	2014-06-30	2014-03-31	2013-09-30	2013-06-30	2013-03-31	2012-09-30	2012-06-30	2012-03-31	2011-09-30	2011-06-30	2011-03-31	2010-09-30	2010-06-30
Value	1600000.0	1400000.0	1100000.0	1100000.0	1200000.0	1400000.0	1500000.0	1200000.0	1000000.0	900000.0	1100000.0	1200000.0	900000.0	800000.0	700000.0	1000000.0	1000000.0	900000.0	1400000.0	1400000.0	1600000.0	1900000.0	2100000.0	1700000.0	1600000.0	1700000.0	1300000.0	1100000.0	1200000.0	1300000.0	1900000.0	1600000.0	1200000.0	1500000.0
Percentage of WeightedAverageNumberDilutedSharesOutstandingAdjustment	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

brkr:BusinessCombinationContingentConsiderationContractuallyDefinedRedemptionValueCapPrice us-gaap:BusinessAcquisition

brkr:BusinessCombinationContingentConsiderationContractuallyDefinedRedemptionValueCapPrice

brkr:HainLifescienceGmbh

Period End	2022-01-01
Value	46
Percentage of BusinessCombinationContingentConsiderationContractuallyDefinedRedemptionValueCapPrice	100.0

brkr:BusinessCombinationIncreaseInRedemptionPriceThereAfter us-gaap:BusinessAcquisition

brkr:BusinessCombinationIncreaseInRedemptionPriceThereAfter

brkr:HainLifescienceGmbh

Period End	2022-01-01
Value	6000000.0
Percentage of BusinessCombinationIncreaseInRedemptionPriceThereAfter	100.0

brkr:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssets us-gaap:BusinessAcquisition

brkr:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssets

brkr:CanopyBiosciences

Period End	2020-09-10
Value	1000000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssets	100.0

brkr:CanopyBiosciencesLlc

Period End	2020-09-10
Value	1000000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherAssets	100.0

brkr:ContractWithCustomerLiabilityForDeferredRevenueCurrent

Period End	2020-12-31	2019-12-31	2018-12-31
Value	118	102	96
Percentage of ContractWithCustomerLiabilityForDeferredRevenueCurrent	100.0	100.0	100.0

brkr:DebtInstrumentFacilityFeePercentage us-gaap:Range, us-gaap:DebtInstrument

brkr:DebtInstrumentFacilityFeePercentage

srt:Maximum, brkr:RevolvingCreditAgreement2019

Period End	2020-12-31	2019-12-31
Value	0.2	0.002
Percentage of DebtInstrumentFacilityFeePercentage	100.0	100.0

srt:Minimum, brkr:RevolvingCreditAgreement2019

Period End	2020-12-31	2019-12-31
Value	0.1	0.001
Percentage of DebtInstrumentFacilityFeePercentage	50.0	50.0

brkr:DeferredTaxAssetsLeaseObligations

Period End	2020-12-31	2019-12-31
Value	15	16
Percentage of DeferredTaxAssetsLeaseObligations	100.0	100.0

brkr:DeferredTaxLiabilitiesAccountsReceivable

Period End	2020-12-31	2019-12-31	2018-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	2700000.0	600000.0	1200000.0	600000.0	2900000.0	400000.0	100000.0	1000000.0	500000.0
Percentage of DeferredTaxLiabilitiesAccountsReceivable	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

brkr:DeferredTaxLiabilitiesAccruedExpenses

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	2.8	0.9	0.3	0.6	1.2	8.0	15	3.9	3.8	0.8
Percentage of DeferredTaxLiabilitiesAccruedExpenses	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

brkr:DeferredTaxLiabilitiesAccruedWithholdingTax

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31
Value	6.7	5.2	4.8	16	2.0
Percentage of DeferredTaxLiabilitiesAccruedWithholdingTax	100.0	100.0	100.0	100.0	100.0

brkr:DeferredTaxLiabilitiesForeignPatentReserves

Period End	2020-12-31	2019-12-31
Value	2400000.0	2200000.0
Percentage of DeferredTaxLiabilitiesForeignPatentReserves	100.0	100.0

brkr:DeferredTaxLiabilitiesRightOfUseAssets

Period End	2020-12-31	2019-12-31
Value	14	15
Percentage of DeferredTaxLiabilitiesRightOfUseAssets	100.0	100.0

brkr:DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityUndistributedEarningsOfForeignExcludingNonCash

Period End	2020-12-31
Value	436
Percentage of DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityUndistributedEarningsOfForeignExcludingNonCash	100.0

brkr:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationExpectedLongTermReturnOnAssets us-gaap:Range

brkr:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationExpectedLongTermReturnOnAssets

srt:Maximum

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	3.0	0.03	0.03	0.03
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationExpectedLongTermReturnOnAssets	100.0	100.0	100.0	100.0

brkr:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostAndPboDiscountRate us-gaap:Range

brkr:DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostAndPboDiscountRate

srt:Maximum

Period End	2020-12-31	2019-12-31	2018-12-31
Value	1.3	2.3	2.3
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostAndPboDiscountRate	100.0	100.0	100.0

srt:Minimum

Period End	2020-12-31
Value	0.1
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostAndPboDiscountRate	7.7

brkr:DefinedBenefitPlanCumulativeEmployerContributionInExcessOfNetPeriodicBenefitCost

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	65	55	53	49	-37.6	-32.4	-18.8	-21.8	-20.5	-18.4	-14.6
Percentage of DefinedBenefitPlanCumulativeEmployerContributionInExcessOfNetPeriodicBenefitCost	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

brkr:HybridInstrumentLiabilityFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

brkr:HybridInstrumentLiabilityFairValueDisclosure

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	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	14	13	13	11	11	10	10	14	13	13	12
Percentage of HybridInstrumentLiabilityFairValueDisclosure	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

brkr:HybridInstrumentLiabilityFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	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	14	13	13	11	11	10	10	14	13	13	12
Percentage of HybridInstrumentLiabilityFairValueDisclosure	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

brkr:IntangiblesAndOtherLongTermAssetsNoncurrent

Period End	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31
Value	325	295	301	310	288	302	278	278	166	172	148	153	195	195	334	293	291	268	275	267	224	232	239	248	245	245	254	256	265	250	254	263	282	278	290	267	251	266	261	265
Percentage of IntangiblesAndOtherLongTermAssetsNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

brkr:LineOfCreditFacilityMaximumBorrowingCapacityUncommittedByLeaders

Period End	2020-09-30	2019-12-31
Value	115	103
Percentage of LineOfCreditFacilityMaximumBorrowingCapacityUncommittedByLeaders	100.0	100.0

brkr:LineOfCreditFacilityMaximumBorrowingCapacityUncommittedByLeaders us-gaap:DebtInstrument

brkr:BankGuaranteesAndWorkingCapitalLine

Period End	2020-09-30	2019-12-31
Value	115	103
Percentage of LineOfCreditFacilityMaximumBorrowingCapacityUncommittedByLeaders	100.0	100.0

brkr:LongTermDebtWithoutUnamortizedDebtIssuanceCosts

Period End	2020-12-31
Value	846
Percentage of LongTermDebtWithoutUnamortizedDebtIssuanceCosts	100.0

brkr:NotionalAmountOfDerivativePurchaseContracts us-gaap:DerivativeInstrumentRisk

brkr:NotionalAmountOfDerivativePurchaseContracts

us-gaap:EmbeddedDerivativeFinancialInstruments

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2010-12-31
Value	5.7	4.3	4.8	6.5	5.8	6.1	6.1	7.6	5.9	6.3	6.0	4.1	3.7	3.7	3.6	2.4	2.7	1.9	2.3	2.8	3.4	3.3	4.1	3.1	6.8	8.5	8.7	9.7	11	12	9.5	12	6.4	7.9	10	8.2	8.0	5.6	4.9	4.2	0.3	0.3
Percentage of NotionalAmountOfDerivativePurchaseContracts	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

brkr:NotionalAmountOfDerivativeSaleContracts us-gaap:DerivativeInstrumentRisk

brkr:NotionalAmountOfDerivativeSaleContracts

us-gaap:EmbeddedDerivativeFinancialInstruments

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2010-12-31
Value	6.2	6.1	7.5	12	11	11	12	81	89	99	113	108	110	92	98	90	103	110	120	59	81	50	59	36	42	54	41	29	11	15	21	29	32	37	40	39	46	46	34	17	19	16
Percentage of NotionalAmountOfDerivativeSaleContracts	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

brkr:OtherShareholdersEquity

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2019-12-31
Value	1734	1677	1622	1554	1503	1474
Percentage of OtherShareholdersEquity	100.0	100.0	100.0	100.0	100.0	100.0

brkr:OtherTaxesPayable

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31
Value	18	17	23	16	12	25	17	13
Percentage of OtherTaxesPayable	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

brkr:ShortTermInvestmentsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

brkr:ShortTermInvestmentsFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2019-12-31
Value	97	50	50	6.6
Percentage of ShortTermInvestmentsFairValueDisclosure	100.0	100.0	100.0	100.0

brkr:ShortTermInvestmentsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2019-12-31
Value	97	50	50	6.6
Percentage of ShortTermInvestmentsFairValueDisclosure	100.0	100.0	100.0	100.0

brkr:UndistributedEarningsOfForeignExcludingNonCash

Period End	2020-12-31
Value	1200
Percentage of UndistributedEarningsOfForeignExcludingNonCash	100.0

brkr:UnrecognizedTaxBenefitsExcludingInterestAndPenalties

Period End	2020-12-31
Value	22
Percentage of UnrecognizedTaxBenefitsExcludingInterestAndPenalties	100.0

us-gaap:AccruedProfessionalFeesCurrent

Period End	2020-12-31	2019-12-31
Value	14	8.8
Percentage of AccruedProfessionalFeesCurrent	100.0	100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	3.0	3.4	3.8	4.7	7.9	9.1	10	7.9	7.9	5.6	5.1
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

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:AssetsFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30
Value	140	212	246	220	15	22	11	0.6	0.9	0.8	0.6	1.0	1.3	1.6	6.2	6.0	6.9	3.3	4.2	0.3	0.3	1.2	0.5	1.7	4.0	1.7	0.6	0.3	0.2	1.9	2.6	5.0	0.4	0.8	2.1	3.0	1.4	3.7	1.1	1.2	0.9
Percentage of AssetsFairValueDisclosure	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:AssetsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2014-12-31
Value	141	213	247	220	15	22	11	0.6	0.9	0.8	0.6	1.0	1.3	1.6	6.2	6.0	6.9	3.3	4.2	0.3	0.3	216	205	206	252	251
Percentage of AssetsFairValueDisclosure	100.9	100.6	100.5	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	18016.7	41160.0	12147.1	6300.0	41950.0

us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired

brkr:HainLifescienceGmbh

Period End	2021-06-30	2020-12-31	2020-03-31	2020-01-31	2018-12-31	2018-10-15
Value	20.0	20.0	20.0	0.2	0.8	0.8
Percentage of BusinessAcquisitionPercentageOfVotingInterestsAcquired	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh

brkr:CanopyBiosciences

Period End	2020-09-10
Value	5000000.0
Percentage of BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh	100.0

brkr:CanopyBiosciencesLlc

Period End	2020-09-10
Value	5000000.0
Percentage of BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh	100.0

us-gaap:BusinessCombinationContingentConsiderationLiability us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:BusinessCombinationContingentConsiderationLiability

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31
Value	3.7	3.3	4.3	6.2	10	11	15	15	16	15	15	16	13	13	12	12	12	18	16	12	12	4.6	4.6	5.2	5.2	9.7	11	15	6.6	7.0	7.0
Percentage of BusinessCombinationContingentConsiderationLiability	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:BusinessCombinationContingentConsiderationLiability us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2014-12-31
Value	3.7	3.3	4.3	6.2	10	11	15	15	16	15	15	16	13	13	12	12	12	18	16	12	12	4.6	4.6	5.2	5.2	11
Percentage of BusinessCombinationContingentConsiderationLiability	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:BusinessCombinationContingentConsiderationLiabilityCurrent

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31
Value	2.7	12	7.1	6.5	13	4.6
Percentage of BusinessCombinationContingentConsiderationLiabilityCurrent	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables

brkr:CanopyBiosciences

Period End	2020-09-10
Value	1200000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables	100.0

brkr:CanopyBiosciencesLlc

Period End	2020-09-10
Value	1200000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables	100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities

brkr:CanopyBiosciences

Period End	2020-09-10
Value	2000000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities	100.0

brkr:CanopyBiosciencesLlc

Period End	2020-09-10
Value	2000000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities	100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles us-gaap:BusinessAcquisition, us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles

brkr:CanopyBiosciences, us-gaap:CustomerRelationships

Period End	2020-09-10
Value	6.1
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles	100.0

brkr:CanopyBiosciences, us-gaap:OrderOrProductionBacklog

Period End	2020-09-10
Value	0.3
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles	4.9

brkr:CanopyBiosciences, us-gaap:TechnologyBasedIntangibleAssets

Period End	2020-09-10
Value	5.7
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles	93.4

brkr:CanopyBiosciences, us-gaap:TradeNames

Period End	2020-09-10
Value	0.7
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles	11.5

brkr:CanopyBiosciencesLlc, us-gaap:CustomerRelationships

Period End	2020-09-10
Value	6.1
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles	100.0

brkr:CanopyBiosciencesLlc, us-gaap:OrderOrProductionBacklog

Period End	2020-09-10
Value	0.3
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles	4.9

brkr:CanopyBiosciencesLlc, us-gaap:TechnologyBasedIntangibleAssets

Period End	2020-09-10
Value	5.7
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles	93.4

brkr:CanopyBiosciencesLlc, us-gaap:TradeNames

Period End	2020-09-10
Value	0.7
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles	11.5

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory

brkr:CanopyBiosciences

Period End	2020-09-10
Value	1.1
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory	100.0

brkr:CanopyBiosciencesLlc

Period End	2020-09-10
Value	1.1
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory	100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities

brkr:CanopyBiosciences

Period End	2020-09-10
Value	2.6
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities	100.0

brkr:CanopyBiosciencesLlc

Period End	2020-09-10
Value	2.4
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities	92.3

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment

brkr:CanopyBiosciences

Period End	2020-09-10
Value	900000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment	100.0

brkr:CanopyBiosciencesLlc

Period End	2020-09-10
Value	900000.0
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment	100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet

brkr:CanopyBiosciences

Period End	2020-09-10
Value	24
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet	100.0

brkr:CanopyBiosciencesLlc

Period End	2020-09-10
Value	24
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet	100.0

us-gaap:CommonStockValueOutstanding

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2010-12-31
Value	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1700000.0	1600000.0	1600000.0
Percentage of CommonStockValueOutstanding	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ContractWithCustomerAssetNet

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2018-01-01
Value	53	48	41	48	46	40	43	38	37	31	25	26	22	22	12
Percentage of ContractWithCustomerAssetNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ContractWithCustomerLiability

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2018-01-01
Value	415	407	399	371	352	342	312	295	310	308	288	285	288	311	291
Percentage of ContractWithCustomerLiability	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ContractWithCustomerLiabilityNoncurrent

Period End	2020-12-31	2019-12-31
Value	50	42
Percentage of ContractWithCustomerLiabilityNoncurrent	100.0	100.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:DebtInstrument

us-gaap:DebtInstrumentCarryingAmount

brkr:NotePurchaseAgreement2012

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31	2018-12-31
Value	205	205	205	205	205	220
Percentage of DebtInstrumentCarryingAmount	100.0	100.0	100.0	100.0	100.0	100.0

brkr:NotePurchaseAgreement2019

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31
Value	320	314	335	322	313	307	306
Percentage of DebtInstrumentCarryingAmount	156.5	153.6	163.7	157.1	0.0	0.0	149.7

us-gaap:DebtWeightedAverageInterestRate us-gaap:CreditFacility, us-gaap:DebtInstrument

us-gaap:DebtWeightedAverageInterestRate

us-gaap:DomesticLineOfCredit, brkr:RevolvingCreditAgreement2019

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31
Value	1.3	1.3	1.3	0.013	0.013	1.3
Percentage of DebtWeightedAverageInterestRate	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredFinanceCostsNet

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2018-12-31
Value	2200000.0	2300000.0	2400000.0	2500000.0	2600000.0	2500000.0	2600000.0	500000.0
Percentage of DeferredFinanceCostsNet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredIncomeCurrent

Period End	2020-09-30	2020-06-30	2019-12-31
Value	154	149	137
Percentage of DeferredIncomeCurrent	100.0	100.0	100.0

us-gaap:DeferredIncomeTaxAssetsNet

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31
Value	72	60	50	57	76	53
Percentage of DeferredIncomeTaxAssetsNet	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredIncomeTaxLiabilities

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	93	90	65	37	11	23	22	30	19	35	28
Percentage of DeferredIncomeTaxLiabilities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxAssetInterestCarryforward

Period End	2020-12-31	2019-12-31
Value	5000000.0	2900000.0
Percentage of DeferredTaxAssetInterestCarryforward	100.0	100.0

us-gaap:DeferredTaxAssetsDeferredIncome

Period End	2020-12-31	2019-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	13	8.4	0.4	2.0	0.2	3.9	4.1	2.2	4.4	4.3
Percentage of DeferredTaxAssetsDeferredIncome	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxAssetsGross

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	128	106	69	69	78	104	86	62	63	62	58
Percentage of DeferredTaxAssetsGross	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwards

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	31	21	24	19	14	16	30	11	10	15	15
Percentage of DeferredTaxAssetsOperatingLossCarryforwards	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	16	11	8.3	5.9	17	32	21	18	15	14	8.0
Percentage of DeferredTaxAssetsTaxCreditCarryforwards	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	32	32	26	27	30	30	21	10	8.6	8.2	4.3
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	4700000.0	7500000.0	5300000.0	6700000.0	4600000.0	4700000.0	800000.0	3100000.0	800000.0	6100000.0	5100000.0
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxAssetsUnrealizedCurrencyLosses

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31
Value	9600000.0	6100000.0	1100000.0	3200000.0	3000000.0	6100000.0	200000.0	4500000.0	4800000.0
Percentage of DeferredTaxAssetsUnrealizedCurrencyLosses	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts

Period End	2020-12-31	2019-12-31	2018-12-31
Value	10	13	1.8
Percentage of DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts	100.0	100.0	100.0

us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill

Period End	2020-12-31	2019-12-31
Value	40	40
Percentage of DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	100.0	100.0

us-gaap:DeferredTaxLiabilitiesOther

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2011-12-31	2010-12-31
Value	2200000.0	7400000.0	3200000.0	6400000.0	3000000.0	3200000.0
Percentage of DeferredTaxLiabilitiesOther	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

Period End	2020-12-31	2019-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	10	4.9	1.9	2.1	2.8	4.0	4.0
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityUndistributedEarningsOfForeignSubsidiaries

Period End	2020-12-31
Value	63
Percentage of DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityUndistributedEarningsOfForeignSubsidiaries	100.0

us-gaap:DefinedBenefitPensionPlanLiabilitiesNoncurrent

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	123	122	90	105	102	91	66	40	60	39	39
Percentage of DefinedBenefitPensionPlanLiabilitiesNoncurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	260	243	206	217	199	189	198	174	176	145	144
Percentage of DefinedBenefitPlanAccumulatedBenefitObligation	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	59	68	38	58	66	60	-48.8	-20.3	-41.1	-22.2	-25.8
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	-56.6	-62.3	-32.0	-48.9	-56.0	-48.5	48	20	41	22	25
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31
Value	2.4	6.0	6.9	9.7	10	12
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	-124700000.0	-123600000.0	-92100000.0	-107700000.0	-104200000.0	-93100000.0	-67600000.0	-42100000.0	-61600000.0	-40600000.0	-40400000.0
Percentage of DefinedBenefitPlanAmountsRecognizedInBalanceSheet	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease us-gaap:Range

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease

srt:Maximum

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	3.0	0.03	0.03	0.03
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	100.0	100.0	100.0	100.0

srt:Minimum

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31
Value	0	0	0.01	0.01
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.0	0.0	33.3	33.3

us-gaap:DefinedBenefitPlanBenefitObligation

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31	2009-12-31
Value	275	255	216	228	210	199	207	183	185	153	151	124
Percentage of DefinedBenefitPlanBenefitObligation	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanExpectedAmortizationNextFiscalYear

Period End	2020-12-31
Value	3700000.0
Percentage of DefinedBenefitPlanExpectedAmortizationNextFiscalYear	100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter

Period End	2020-12-31
Value	45
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

Period End	2020-12-31
Value	8300000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive

Period End	2020-12-31
Value	8600000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour

Period End	2020-12-31
Value	8400000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

Period End	2020-12-31
Value	8000000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

Period End	2020-12-31
Value	7800000.0
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	100.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31	2009-12-31
Value	150	131	124	120	105	106	139	141	123	112	111	95
Percentage of DefinedBenefitPlanFairValueOfPlanAssets	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:DefinedBenefitPlanByPlanAssetCategories

brkr:GroupBpceLife

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31
Value	0.5	0.5	0.8	1.1	1.3	1.4
Percentage of DefinedBenefitPlanFairValueOfPlanAssets	0.3	0.4	0.6	0.9	1.2	1.3

brkr:SwissLifeCollectiveBvgFoundation

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31
Value	150	130	123	119	104	104
Percentage of DefinedBenefitPlanFairValueOfPlanAssets	99.7	99.6	99.4	99.1	98.8	98.7

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:FairValueByFairValueHierarchyLevel

brkr:GroupBpceLife, us-gaap:FairValueInputsLevel2

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31
Value	0.5	0.5	0.8	1.1	1.3	1.4
Percentage of DefinedBenefitPlanFairValueOfPlanAssets	0.3	0.4	0.6	0.9	1.2	1.3

brkr:SwissLifeCollectiveBvgFoundation, us-gaap:FairValueInputsLevel2

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31
Value	150	130	123	119	104	104
Percentage of DefinedBenefitPlanFairValueOfPlanAssets	99.7	99.6	99.4	99.1	98.8	98.7

us-gaap:DefinedBenefitPlanFairValueOfPlanAssets us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:FairValueInputsLevel2

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2013-12-31	2012-12-31
Value	150	131	124	120	105	104	6.0	6.9
Percentage of DefinedBenefitPlanFairValueOfPlanAssets	100.0	100.0	100.0	100.0	100.0	98.7	4.3	5.6

us-gaap:DefinedBenefitPlanFundedStatusOfPlan

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	-124700000.0	-123600000.0	-92100000.0	-107700000.0	-104200000.0	-93100000.0	-67600000.0	-42100000.0	-61600000.0	-40600000.0	-40400000.0
Percentage of DefinedBenefitPlanFundedStatusOfPlan	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage us-gaap:DefinedBenefitPlanByPlanAssetCategories

us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage

brkr:BondsIncludingCash

Period End	2020-12-31	2019-12-31
Value	65.0	0.75
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage	100.0	100.0

brkr:RealEstateAndMortgages

Period End	2020-12-31	2019-12-31
Value	25.0	0.2
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage	38.5	26.7

us-gaap:DefinedBenefitPlanCash

Period End	2020-12-31
Value	2.5
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage	3.8

us-gaap:DefinedBenefitPlanEquitySecurities

Period End	2020-12-31	2019-12-31
Value	7.5	0.05
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage	11.5	6.7

us-gaap:DerivativeAssetNotionalAmount us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeAssetNotionalAmount

us-gaap:ForeignExchangeForward

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31
Value	23	10.0	175	50	66
Percentage of DerivativeAssetNotionalAmount	100.0	100.0	100.0	100.0	100.0

us-gaap:DerivativeAssets us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:DerivativeAssets

us-gaap:OtherCurrentAssets, us-gaap:CommodityContract, us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedge

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31
Value	2.2	3.8	3.1	2.1	0.3
Percentage of DerivativeAssets	100.0	100.0	100.0	100.0	100.0

us-gaap:OtherCurrentAssets, us-gaap:EmbeddedDerivativeFinancialInstruments, us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedge

Period End	2020-12-31	2020-09-30	2019-12-31
Value	0.1	0.4	0.1
Percentage of DerivativeAssets	3.2	19.0	33.3

us-gaap:OtherCurrentAssets, us-gaap:ForeignExchangeForward, us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedge

Period End	2021-03-31	2020-12-31	2020-09-30	2019-12-31
Value	0.1	2.1	0.3	0.9
Percentage of DerivativeAssets	2.6	67.7	14.3	300.0

us-gaap:DerivativeAssets us-gaap:BalanceSheetLocation, us-gaap:HedgingDesignation

us-gaap:OtherCurrentAssets, us-gaap:DesignatedAsHedgingInstrument

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31
Value	6.6	7.1	7.6	9.0	10
Percentage of DerivativeAssets	300.0	186.8	245.2	428.6	3366.7

us-gaap:DerivativeAssets us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31
Value	6.6	7.1	7.6	9.0	13	21	10
Percentage of DerivativeAssets	300.0	186.8	245.2	428.6	0.0	0.0	3366.7

us-gaap:DerivativeAssets us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31
Value	6.6	7.1	7.6	9.0	13	21	10
Percentage of DerivativeAssets	300.0	186.8	245.2	428.6	0.0	0.0	3366.7

us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2019-12-31
Value	-54500000.0	-23900000.0	-49000000.0	-26600000.0	-6800000.0	-6300000.0
Percentage of DerivativeAssetsLiabilitiesAtFairValueNet	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet us-gaap:DerivativeInstrumentRisk

brkr:CrossCurrencyAndInterestRateSwapAgreements

Period End	2021-06-30	2020-12-31
Value	-32800000.0	-53900000.0
Percentage of DerivativeAssetsLiabilitiesAtFairValueNet	60.2	110.0

us-gaap:ForeignExchangeContract

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31
Value	-56400000.0	-27400000.0	-52200000.0	-29100000.0	-6300000.0
Percentage of DerivativeAssetsLiabilitiesAtFairValueNet	103.5	114.6	106.5	109.4	100.0

us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:LongTermDebt, us-gaap:DesignatedAsHedgingInstrument

Period End	2021-06-30	2020-12-31
Value	-23000000.0	-37600000.0
Percentage of DerivativeAssetsLiabilitiesAtFairValueNet	42.2	76.7

us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet us-gaap:HedgingDesignation

us-gaap:DesignatedAsHedgingInstrument

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31
Value	-55800000.0	-26200000.0	-53900000.0	-29200000.0	-6800000.0
Percentage of DerivativeAssetsLiabilitiesAtFairValueNet	102.4	109.6	110.0	109.8	107.9

us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedge

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31
Value	1300000.0	2300000.0	4900000.0	2600000.0	300000.0
Percentage of DerivativeAssetsLiabilitiesAtFairValueNet	-2.4	-9.6	-10.0	-9.8	-4.8

us-gaap:DerivativeInstrumentsInHedgesLiabilitiesAtFairValue us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeInstrumentsInHedgesLiabilitiesAtFairValue

us-gaap:CurrencySwap

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31
Value	32	26	53	29	6.8
Percentage of DerivativeInstrumentsInHedgesLiabilitiesAtFairValue	100.0	100.0	100.0	100.0	100.0

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue

us-gaap:ForeignExchangeForward

Period End	2021-03-31	2020-12-31	2020-09-30	2019-12-31
Value	100000.0	2100000.0	300000.0	900000.0
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue	100.0	100.0	100.0	100.0

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue

us-gaap:ForeignExchangeForward

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31
Value	0.6	1.3	0.4	0.2	0.4
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue	100.0	100.0	100.0	100.0	100.0

us-gaap:LongTermDebt

Period End	2021-06-30	2020-12-31
Value	23	37
Percentage of DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue	3833.3	9400.0

us-gaap:DerivativeLiabilities us-gaap:BalanceSheetLocation, us-gaap:DerivativeInstrumentRisk, us-gaap:HedgingDesignation

us-gaap:DerivativeLiabilities

us-gaap:OtherCurrentLiabilities, us-gaap:ForeignExchangeForward, us-gaap:NotDesignatedAsHedgingInstrumentEconomicHedge

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31
Value	-0.6	-1.3	-0.4	0.2	0.4
Percentage of DerivativeLiabilities	100.0	100.0	100.0	100.0	100.0

us-gaap:DerivativeLiabilities us-gaap:BalanceSheetLocation, us-gaap:HedgingDesignation

us-gaap:OtherCurrentLiabilities, us-gaap:DesignatedAsHedgingInstrument

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30
Value	-11.0	-9.3	-4.3	4.3
Percentage of DerivativeLiabilities	1833.3	715.4	1075.0	2150.0

us-gaap:OtherNoncurrentLiabilities, us-gaap:DesignatedAsHedgingInstrument

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31
Value	-28.4	-24.0	-57.2	33	16
Percentage of DerivativeLiabilities	4733.3	1846.2	14300.0	16950.0	4225.0

us-gaap:DerivativeLiabilities us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31
Value	39	33	61	38	20	17	16
Percentage of DerivativeLiabilities	-6566.7	-2561.5	-15375.0	19100.0	0.0	0.0	4225.0

us-gaap:DerivativeLiabilities us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31
Value	39	33	61	38	20	17	16
Percentage of DerivativeLiabilities	-6566.7	-2561.5	-15375.0	19100.0	0.0	0.0	4225.0

us-gaap:DerivativeLiabilitiesCurrent

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31
Value	8000000.0	1200000.0	4200000.0	2400000.0	1800000.0	2200000.0	5700000.0	600000.0
Percentage of DerivativeLiabilitiesCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:DerivativeLiabilityNotionalAmount us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeLiabilityNotionalAmount

us-gaap:ForeignExchangeForward

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31
Value	111	121	102	35	7.7
Percentage of DerivativeLiabilityNotionalAmount	100.0	100.0	100.0	100.0	100.0

us-gaap:LongTermDebt

Period End	2021-06-30	2020-12-31
Value	320	335
Percentage of DerivativeLiabilityNotionalAmount	289.1	327.3

us-gaap:DerivativeNotionalAmount us-gaap:DerivativeInstrumentRisk

us-gaap:DerivativeNotionalAmount

us-gaap:CommodityContract

Period End	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	3.8	5.8	8.8	10	11	7.2	5.6	5.1	6.8
Percentage of DerivativeNotionalAmount	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ForeignExchangeContract

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31
Value	960	636	783	590	579
Percentage of DerivativeNotionalAmount	25273.7	10970.7	8901.1	5790.2	10346.4

us-gaap:EmbeddedDerivativeFairValueOfEmbeddedDerivativeAsset us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:EmbeddedDerivativeFairValueOfEmbeddedDerivativeAsset

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring

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	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30
Value	100000.0	400000.0	400000.0	800000.0	100000.0	300000.0	300000.0	300000.0	400000.0	600000.0	700000.0	1300000.0	900000.0	900000.0	800000.0	3000000.0	4000000.0	100000.0	100000.0	100000.0	500000.0	400000.0	1100000.0	1700000.0	600000.0	300000.0	100000.0	200000.0	200000.0	200000.0	400000.0	800000.0	300000.0	800000.0	1400000.0	300000.0	600000.0	100000.0	200000.0
Percentage of EmbeddedDerivativeFairValueOfEmbeddedDerivativeAsset	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:EmbeddedDerivativeFairValueOfEmbeddedDerivativeAsset us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

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	2015-12-31	2015-09-30	2015-06-30	2014-12-31
Value	100000.0	400000.0	400000.0	800000.0	100000.0	300000.0	300000.0	300000.0	400000.0	600000.0	700000.0	1300000.0	900000.0	900000.0	800000.0	3000000.0	4000000.0	100000.0	100000.0	100000.0	500000.0	400000.0	1100000.0	600000.0
Percentage of EmbeddedDerivativeFairValueOfEmbeddedDerivativeAsset	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30
Value	300000.0	300000.0	600000.0	800000.0	700000.0	900000.0	900000.0	1300000.0	1400000.0	3200000.0	2900000.0	2200000.0	800000.0	300000.0	100000.0	400000.0	400000.0	500000.0	400000.0	700000.0	1200000.0	400000.0	300000.0	300000.0	400000.0	400000.0	400000.0	200000.0	100000.0	300000.0	300000.0	300000.0	500000.0	400000.0	200000.0	1100000.0
Percentage of EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2014-12-31
Value	300000.0	300000.0	600000.0	800000.0	700000.0	900000.0	900000.0	1300000.0	1400000.0	3200000.0	2900000.0	2200000.0	800000.0	300000.0	100000.0	400000.0	400000.0	500000.0	400000.0	700000.0	400000.0
Percentage of EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31	2013-12-31	2012-12-31	2011-12-31	2010-12-31
Value	110	105	104	105	83	88	87	88	85	77	68
Percentage of EmployeeRelatedLiabilitiesCurrent	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

Period End	2021-06-30	2021-03-31	2020-12-31
Value	20	23	24
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	100.0	100.0	100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized us-gaap:AwardType

us-gaap:EmployeeStockOption

Period End	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31
Value	2.7	1.9	2.4	2.9	3.3	2.8	3.6	4.4	5.3	5.2	6.5
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized us-gaap:AwardType, us-gaap:PlanName

us-gaap:RestrictedStockUnitsRSU, brkr:IncentiveCompensationPlan2016

Period End	2020-09-30	2017-03-31	2016-09-30	2016-06-30
Value	25	5.5	0.2	0.2
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	0.0	0.0	0.0	0.0

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue us-gaap:FairValueByLiabilityClass

us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue

brkr:ContingentConsideration

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	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	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2012-12-31
Value	3.7	3.3	4.3	6.2	10	11	15	15	16	15	13	16	13	12	12	12	18	16	12	12	4.6	5.2	5.2	9.7	11	15	6.6	7.0	7.0	8.5	3.7
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:HybridInstrument

Period End	2021-06-30	2021-03-31	2020-12-31	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	14	13	13	11	11	10	10	14	13	13	12
Percentage of FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	386.5	418.2	323.3	188.7	106.7	91.6	67.1	92.3	84.6	86.9	95.6

us-gaap:FinanceLeaseLiability

Period End	2020-12-31
Value	3400000.0
Percentage of FinanceLeaseLiability	100.0

us-gaap:FinanceLeaseLiabilityCurrent

Period End	2020-12-31	2019-12-31
Value	800000.0	400000.0
Percentage of FinanceLeaseLiabilityCurrent	100.0	100.0

us-gaap:FinanceLeaseLiabilityNoncurrent

Period End	2020-12-31	2019-12-31
Value	2600000.0	1100000.0
Percentage of FinanceLeaseLiabilityNoncurrent	100.0	100.0

us-gaap:FinanceLeaseLiabilityPaymentsDue

Period End	2020-12-31	2019-12-31	2019-09-30	2019-06-30	2018-12-31
Value	3500000.0	1600000.0	1500000.0	1100000.0	200000.0
Percentage of FinanceLeaseLiabilityPaymentsDue	100.0	100.0	100.0	100.0	100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

Period End	2020-12-31
Value	1200000.0
Percentage of FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

Period End	2020-12-31
Value	100000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFive	100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

Period End	2020-12-31
Value	400000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearFour	100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

Period End	2020-12-31	2019-12-31	2019-09-30	2019-06-30	2018-12-31
Value	800000.0	400000.0	400000.0	200000.0	100000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearThree	100.0	100.0	100.0	100.0	100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

Period End	2020-12-31	2019-12-31	2019-09-30	2019-06-30	2018-12-31
Value	1000000.0	500000.0	500000.0	400000.0	100000.0
Percentage of FinanceLeaseLiabilityPaymentsDueYearTwo	100.0	100.0	100.0	100.0	100.0

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

Period End	2020-12-31
Value	100000.0
Percentage of FinanceLeaseLiabilityUndiscountedExcessAmount	100.0

us-gaap:FinanceLeaseRightOfUseAsset

Period End	2020-12-31	2019-12-31
Value	3700000.0	1700000.0
Percentage of FinanceLeaseRightOfUseAsset	100.0	100.0

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

Period End	2020-12-31	2019-12-31
Value	2.2	3.0
Percentage of FinanceLeaseWeightedAverageDiscountRatePercent	100.0	100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2010-12-31
Value	255	245	244	243	241	230	223	211	201	193	184	176	170	163	154	146	138	129	123	117	112	106	102	96	93	87	87	82	85	81	76	67	67	62	55	51	45	38	35	26	22	17
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2013-12-31
Value	51	48	45	40	37	33	30	27	23	20	18	16	15	13	12	11	10	8.9	7.9	7.5	6.9	6.4	5.9	5.3	5.0	4.6	5.6	7.8
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization	20.3	19.6	18.6	16.7	15.6	14.6	13.8	12.8	11.5	10.7	9.8	9.2	8.8	8.5	8.4	8.0	7.5	6.9	6.4	6.4	6.1	6.0	5.8	5.5	5.3	5.3	6.4	10.2

us-gaap:OtherIntangibleAssets

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30
Value	0.2	0.1	0.1	0.5	5.5	5.4	5.4	5.2	5.1	4.4	2.4	1.4	0.5
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization	0.1	0.0	0.0	0.2	2.3	2.3	2.4	2.5	2.5	2.3	1.3	0.8	0.3

us-gaap:TechnologyBasedIntangibleAssets

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2016-12-31
Value	198	192	194	198	192	186	182	175	169	164	160	156	151	146	138	133	113
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization	77.7	78.5	79.6	81.4	79.9	80.9	81.6	82.7	84.0	85.1	87.0	88.2	89.1	89.9	90.1	90.6	92.4

us-gaap:TradeNames

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31
Value	5.1	4.7	4.4	3.9	3.5	3.2	2.9	2.5	2.1	1.9	1.6	1.4	1.3	1.0	0.9	0.7	0.6	0.5	0.4	0.3	0.3	0.2	0.2	0.2	0.2	0.2	0.2	0.1	0.2	0.2	0.2	0.2	0.2	0.2	0.2
Percentage of FiniteLivedIntangibleAssetsAccumulatedAmortization	2.0	1.9	1.8	1.6	1.5	1.4	1.3	1.2	1.0	1.0	0.9	0.8	0.8	0.6	0.6	0.5	0.4	0.4	0.3	0.3	0.3	0.2	0.2	0.2	0.2	0.2	0.2	0.1	0.2	0.2	0.3	0.3	0.3	0.3	0.4

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive

Period End	2020-12-31
Value	83
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

Period End	2020-12-31
Value	36
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

Period End	2020-12-31
Value	24
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

Period End	2020-12-31
Value	25
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

Period End	2020-12-31
Value	28
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	100.0

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

Period End	2020-12-31
Value	30
Percentage of FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	100.0

us-gaap:FiniteLivedIntangibleAssetsGross

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2010-12-31
Value	461	458	473	474	459	452	456	445	447	413	403	274	257	239	236	235	229	215	192	178	177	176	176	162	166	164	165	165	175	176	176	170	167	167	167	179	178	180	163	151	138	132
Percentage of FiniteLivedIntangibleAssetsGross	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:FiniteLivedIntangibleAssetsGross us-gaap:FiniteLivedIntangibleAssetsByMajorClass

us-gaap:CustomerRelationships

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2013-12-31
Value	145	144	148	144	135	132	134	131	131	116	112	49	42	34	34	34	33	32	20	18	18	18	18	11	11	11	13	18
Percentage of FiniteLivedIntangibleAssetsGross	31.5	31.5	31.3	30.4	29.5	29.4	29.5	29.4	29.4	28.1	27.8	18.0	16.4	14.5	14.7	14.6	14.8	15.1	10.4	10.3	10.3	10.5	10.4	7.2	7.0	6.9	8.1	10.2

us-gaap:OtherIntangibleAssets

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30
Value	0.3	0.3	0.3	0.7	5.5	5.5	5.5	5.4	5.5	5.5	5.1	2.8	1.8
Percentage of FiniteLivedIntangibleAssetsGross	0.1	0.1	0.1	0.1	1.2	1.2	1.2	1.2	1.2	1.3	1.3	1.0	0.7

us-gaap:TechnologyBasedIntangibleAssets

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2016-12-31
Value	300	299	309	314	302	298	300	294	295	277	272	215	206	198	195	194	169
Percentage of FiniteLivedIntangibleAssetsGross	65.2	65.2	65.4	66.3	65.9	66.0	65.9	66.0	66.0	67.2	67.6	78.3	80.3	83.0	82.8	82.8	87.8

us-gaap:TradeNames

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31
Value	14	14	15	14	13	13	13	13	13	11	11	5.4	4.8	4.3	4.2	4.2	4.0	3.1	1.6	1.6	1.6	1.6	1.6	0.2	0.2	0.2	0.2	0.1	0.2	0.2	0.2	0.2	0.2	0.2	0.2
Percentage of FiniteLivedIntangibleAssetsGross	3.2	3.2	3.2	3.1	3.0	3.0	3.0	3.0	3.0	2.9	2.9	2.0	1.9	1.8	1.8	1.8	1.7	1.4	0.8	0.9	0.9	0.9	0.9	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1

us-gaap:ForeignCurrencyContractAssetFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:ForeignCurrencyContractAssetFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring

Period End	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2016-09-30	2016-06-30	2016-03-31	2015-09-30	2015-06-30	2014-03-31	2013-12-31	2013-09-30	2012-12-31	2012-09-30	2012-03-31	2011-09-30	2011-06-30
Value	100000.0	2100000.0	300000.0	400000.0	100000.0	900000.0	300000.0	600000.0	500000.0	200000.0	400000.0	600000.0	100000.0	4500000.0	4400000.0	5700000.0	200000.0	200000.0	1100000.0	1300000.0	2900000.0	1700000.0	2300000.0	4700000.0	1800000.0	2200000.0	3300000.0	100000.0	600000.0
Percentage of ForeignCurrencyContractAssetFairValueDisclosure	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ForeignCurrencyContractAssetFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

Period End	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2016-09-30	2016-06-30	2016-03-31	2015-09-30	2015-06-30
Value	100000.0	2100000.0	300000.0	400000.0	100000.0	900000.0	300000.0	600000.0	500000.0	200000.0	400000.0	600000.0	100000.0	4500000.0	4400000.0	5700000.0	200000.0	200000.0	1100000.0	1300000.0	2900000.0
Percentage of ForeignCurrencyContractAssetFairValueDisclosure	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ForeignCurrencyContractsLiabilityFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:ForeignCurrencyContractsLiabilityFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2013-03-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30
Value	600000.0	1300000.0	400000.0	200000.0	100000.0	800000.0	400000.0	1500000.0	800000.0	1300000.0	2800000.0	2700000.0	4300000.0	100000.0	100000.0	300000.0	100000.0	500000.0	1400000.0	200000.0	900000.0	200000.0	1300000.0	600000.0	7800000.0	5100000.0	7200000.0	900000.0	3500000.0	100000.0	2400000.0	300000.0	4200000.0	100000.0	400000.0
Percentage of ForeignCurrencyContractsLiabilityFairValueDisclosure	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:ForeignCurrencyContractsLiabilityFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2014-12-31
Value	600000.0	1300000.0	400000.0	200000.0	100000.0	800000.0	400000.0	1500000.0	800000.0	1300000.0	2800000.0	2700000.0	4300000.0	100000.0	100000.0	300000.0	100000.0	500000.0	1400000.0	200000.0	900000.0	200000.0	1300000.0	600000.0	5100000.0
Percentage of ForeignCurrencyContractsLiabilityFairValueDisclosure	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:InventoryFinishedGoodsNetOfReserves

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2010-12-31
Value	161	157	152	139	131	115	104	101	105	92	94	89	87	95	96	108	105	104	91	99	95	91	93	119	113	134	109	149	158	170	155	162	148	166	160	175	170	183	175	175	174	143
Percentage of InventoryFinishedGoodsNetOfReserves	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:InventoryRawMaterialsNetOfReserves

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2010-12-31
Value	206	197	198	205	201	194	188	194	195	178	164	156	158	161	152	154	152	140	132	156	151	141	158	177	180	164	159	172	200	202	189	206	197	203	199	195	186	198	175	185	159	143
Percentage of InventoryRawMaterialsNetOfReserves	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:InventoryWorkInProcessNetOfReserves

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2010-12-31
Value	265	253	245	261	248	236	206	216	221	200	182	208	203	204	183	203	201	195	181	189	187	188	131	143	156	140	169	199	200	198	196	212	204	197	197	205	202	206	169	185	227	174
Percentage of InventoryWorkInProcessNetOfReserves	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:InvestmentsFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:InvestmentsFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31
Value	33	151	183	208	15
Percentage of InvestmentsFairValueDisclosure	100.0	100.0	100.0	100.0	100.0

us-gaap:InvestmentsFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2019-12-31
Value	33	151	183	208	15
Percentage of InvestmentsFairValueDisclosure	100.0	100.0	100.0	100.0	100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

Period End	2020-12-31	2019-12-31	2018-12-31
Value	22	21	25
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	100.0	100.0	100.0

us-gaap:LettersOfCreditOutstandingAmount

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	2016-12-31	2016-09-30	2016-06-30	2016-03-31
Value	122	120	141	132	133	143	127	134	132	138	120	124	138	138	124	131	132	131	130	130	129
Percentage of LettersOfCreditOutstandingAmount	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:LettersOfCreditOutstandingAmount us-gaap:CreditFacility

us-gaap:LineOfCredit

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	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31
Value	133	141	132	133	143	127	134	132	138	120	124	138	138	124	131	132	131	130	130	129	137	134	137	136	150
Percentage of LettersOfCreditOutstandingAmount	0.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	0.0	0.0	0.0	0.0	0.0

us-gaap:LettersOfCreditOutstandingAmount us-gaap:CreditFacility, us-gaap:DebtInstrument

us-gaap:DomesticLineOfCredit, brkr:RevolvingCreditAgreement2019

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31
Value	0.1	0.2	0.2	0.3	0.3	0.2
Percentage of LettersOfCreditOutstandingAmount	0.1	0.2	0.1	0.2	0.2	0.1

us-gaap:LettersOfCreditOutstandingAmount us-gaap:DebtInstrument

brkr:BankGuaranteesAndWorkingCapitalLine

Period End	2021-06-30	2021-03-31	2020-09-30	2019-12-31
Value	122	120	141	132
Percentage of LettersOfCreditOutstandingAmount	99.9	99.8	99.9	92.8

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:LiabilitiesFairValueDisclosure

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30
Value	40	34	61	38	20	18	17	2.5	1.7	2.2	4.2	4.4	5.8	3.3	3.0	2.5	0.9	0.5	1.7	0.5	1.5	0.9	2.2	1.4	1.0	9.2	5.7	7.6	1.2	0.5	0.4	0.4	0.6	3.8	0.5	0.7	3.6	1.8	6.2	3.0	3.9
Percentage of LiabilitiesFairValueDisclosure	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31
Value	18	17	18	17	21	22	26	29	29	28	28	16	13	13	12	12	12	18	16	12	12	4.6	4.6	5.2	5.2	9.7	11	15	6.6	7.0	7.0	8.5	2.8	4.0	3.7
Percentage of LiabilitiesFairValueDisclosure	44.7	49.0	29.4	46.6	106.4	122.6	147.5	1192.0	1758.8	1300.0	666.7	384.1	224.1	409.1	423.3	492.0	1388.9	3660.0	976.5	2560.0	853.3	511.1	209.1	371.4	520.0	105.4	208.8	207.9	550.0	1400.0	1750.0	2125.0	466.7	105.3	740.0

us-gaap:LiabilitiesFairValueDisclosure us-gaap:FairValueByMeasurementFrequency

us-gaap:FairValueMeasurementsRecurring

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2014-12-31
Value	58	52	80	56	42	41	44	32	31	30	32	21	18	16	15	14	13	18	18	13	14	5.5	6.8	6.6	6.2	17
Percentage of LiabilitiesFairValueDisclosure	144.7	149.0	129.4	146.6	206.4	222.6	247.5	1292.0	1858.8	1400.0	766.7	484.1	324.1	509.1	523.3	592.0	1488.9	3760.0	1076.5	2660.0	953.3	611.1	309.1	471.4	620.0	308.8

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

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	2016-12-31	2016-09-30	2016-06-30	2016-03-31
Value	722	720	741	1046	845	851	736	766	762	765	750	750	763	757	754	749	734	732	737	738	748
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity us-gaap:DebtInstrument

brkr:BankGuaranteesAndWorkingCapitalLine

Period End	2021-06-30	2021-03-31	2020-09-30	2019-12-31
Value	122	120	141	132
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity	16.9	16.7	19.1	15.6

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

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	2016-12-31	2016-09-30	2016-06-30	2016-03-31
Value	599	599	715	710	515	708	298	346	502	513	610	626	624	424	370	407	438	430	482	505	558
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity us-gaap:CreditFacility, us-gaap:DebtInstrument

us-gaap:DomesticLineOfCredit, brkr:RevolvingCreditAgreement2019

Period End	2021-06-30	2021-03-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31
Value	599	599	599	396	403	599
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity	100.0	100.0	83.9	55.7	78.3	84.6

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity us-gaap:DebtInstrument

brkr:BankGuaranteesAndWorkingCapitalLine

Period End	2020-09-30	2019-12-31
Value	115	103
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity	16.1	14.6

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31	2012-09-30	2012-06-30	2012-03-31	2011-12-31	2011-09-30	2011-06-30	2011-03-31	2010-12-31
Value	108	108	2.2	1.7	100	95	0.5	0.3	0.3	2.6	18	0.1	0.1	20	20	20	20	0.7	130	123	0.7	0.8	0.7	0.8	0.7	0.7	1.0	1.1	1.1	1.3	38	77	76	83	53	42	30	28
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:LongTermDebtFairValue us-gaap:FairValueByFairValueHierarchyLevel

us-gaap:LongTermDebtFairValue

us-gaap:FairValueInputsLevel2

Period End	2021-06-30	2021-03-31	2020-12-31	2020-09-30	2020-06-30	2020-03-31	2019-12-31	2019-09-30	2019-06-30	2019-03-31	2018-12-31	2018-09-30	2018-06-30	2018-03-31	2017-12-31	2017-09-30	2017-06-30	2017-03-31	2016-12-31	2016-09-30	2016-06-30	2016-03-31	2015-12-31	2015-09-30	2015-06-30	2015-03-31	2014-12-31	2014-09-30	2014-06-30	2014-03-31	2013-12-31	2013-09-30	2013-06-30	2013-03-31	2012-12-31
Value	538	527	549	530	510	453	517	216	213	212	228	228	227	227	231	230	233	230	253	260	264	257	252	254	251	257	257	249	252	245	244	245	242	251	255
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	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

Period End	2020-12-31
Value	584
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

Period End	2020-12-31
Value	2600000.0
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

Period End	2020-12-31
Value	15
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

Period End	2020-12-31
Value	115
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

Period End	2020-12-31
Value	16
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

Period End	2020-12-31
Value	112
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	100.0

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent

Period End	2020-12-31	2019-12-31
Value	1.9	2.3
Percentage of OperatingLeaseWeightedAverageDiscountRatePercent	100.0	100.0

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthority

us-gaap:OperatingLossCarryforwards

us-gaap:StateAndLocalJurisdiction

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31	2014-12-31
Value	65	38	43	23	40	3.0	36
Percentage of OperatingLossCarryforwards	100.0	100.0	100.0	100.0	100.0	100.0	100.0

us-gaap:OperatingLossCarryforwards us-gaap:IncomeTaxAuthority, us-gaap:IncomeTaxAuthorityName

us-gaap:ForeignCountry, brkr:OtherForeignCountry

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31
Value	18	13	8.5	13	23	42
Percentage of OperatingLossCarryforwards	28.4	34.0	19.7	59.9	57.5	1430.0

us-gaap:ForeignCountry, us-gaap:FederalMinistryOfFinanceGermany

Period End	2020-12-31	2019-12-31	2018-12-31	2017-12-31	2016-12-31	2015-12-31
Value	108	82	93	77	41	42
Percentage of OperatingLossCarryforwards	166.3	213.1	215.5	333.6	102.0	1413.3

BRKR

Table of contents

Plots across concepts

Tables

Shares Outstanding

us-gaap:SharesOutstanding us-gaap:StatementEquityComponents

us-gaap:SharesOutstanding

us-gaap:CommonStock

us-gaap:TreasuryStock

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

brkr:UnvestedRestrictedStockUnitsRsu

us-gaap:EmployeeStockOption

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted

Allocated Share Based Compensation Expense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:AwardType

us-gaap:EmployeeStockOption

us-gaap:RestrictedStockUnitsRSU

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:BusinessAcquisition

brkr:MestrelabResearchS.l

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:BusinessAcquisition, us-gaap:IncomeStatementLocation

brkr:MestrelabResearchS.l, us-gaap:OtherOperatingIncomeExpense

us-gaap:AllocatedShareBasedCompensationExpense us-gaap:IncomeStatementLocation

us-gaap:CostOfSales

us-gaap:ResearchAndDevelopmentExpense

us-gaap:SellingGeneralAndAdministrativeExpenses

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

Cost Of Revenue

us-gaap:CostOfRevenue

us-gaap:CostOfRevenue

us-gaap:CostOfRevenue us-gaap:ProductOrService

us-gaap:Product

us-gaap:ProductAndServiceOther

us-gaap:Service

Gross Profit

us-gaap:GrossProfit

us-gaap:GrossProfit

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss