Derivative Instruments (Details) $ in Millions, ₩ in Billions	1 Months Ended		3 Months Ended			9 Months Ended		12 Months Ended
	Nov. 30, 2018 USD ($)	Nov. 30, 2018 KRW (₩)	Sep. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)	May 31, 2018
Derivatives [Line Items]
Gain (loss) on foreign currency derivative instruments not designated as hedging instruments			$ 36.5		$ (13.5)	$ 85.8	$ (26.1)
Gains (losses) on net investment hedges, net of tax			0.0		15.1	$ (25.5)	35.2
Minimum
Derivatives [Line Items]
Range of durations of foreign currency forward contracts								1 month
Maximum
Derivatives [Line Items]
Range of durations of foreign currency forward contracts						15 months		15 months
Not designated as hedging instrument
Derivatives [Line Items]
Derivative, Notional Amount			1,285.4			$ 1,285.4		$ 1,268.0
Other current assets | Designated as hedging instrument
Derivatives [Line Items]
Derivative asset, fair value			158.2			158.2		66.2
Other current assets | Not designated as hedging instrument
Derivatives [Line Items]
Derivative asset, fair value			11.3			11.3		5.1
Other noncurrent assets | Designated as hedging instrument
Derivatives [Line Items]
Derivative asset, fair value			5.0			5.0		5.5
Accrued expenses and other | Designated as hedging instrument
Derivatives [Line Items]
Derivative liability, fair value			2.6			2.6		6.6
Accrued expenses and other | Not designated as hedging instrument
Derivatives [Line Items]
Derivative liability, fair value			20.2			20.2		4.2
Foreign exchange contract | Designated as hedging instrument
Derivatives [Line Items]
Derivative, Notional Amount			1,208.7			1,208.7		2,126.8
Foreign Exchange Forward
Derivatives [Line Items]
Unrealized Gain on Derivatives						146.5	60.8
Unrealized Loss on Derivatives						(2.2)	(7.0)
Unrealized Gain (Loss) on Derivatives						144.3	53.8
Net Investment Hedging
Derivatives [Line Items]
Unrealized gain (loss) on net investment hedges in AOCI				$ 10.6
Derivative qualifying as net investment hedge, excluded component								3.6
Gains (losses) on net investment hedges, net of tax			0.0		24.9	20.4	46.1
Gains (losses) on net investment hedge, excluded component			0.0		0.0	(3.2)	(1.1)
Net Investment Hedging | Foreign exchange contract | Other current assets
Derivatives [Line Items]
Derivative asset, fair value			21.4			21.4		4.1
Revenue | Foreign exchange contract
Derivatives [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax			77.7		(14.9)	143.2	(68.7)
Revenue | Cash flows, revenue | Foreign exchange contract
Derivatives [Line Items]
Gain on interest rate swap			6.6		(0.7)	(0.8)	(4.5)
Operating expense | Foreign exchange contract
Derivatives [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax			(0.8)		(0.3)	(3.5)	(0.3)
Operating expense | Cash flows, operating expenses | Foreign exchange contract
Derivatives [Line Items]
Gain on interest rate swap			(0.1)		0.0	(0.4)	(0.4)
Other income (expense) | Net Investment Hedging
Derivatives [Line Items]
Gain (loss) recognized in net income, excluded component			0.0		$ 0.0	(4.6)	$ 0.1
Euro | Foreign exchange contract | Designated as hedging instrument
Derivatives [Line Items]
Derivative, Notional Amount			1,089.2			1,089.2		1,828.0
British pound | Foreign exchange contract | Designated as hedging instrument
Derivatives [Line Items]
Derivative, Notional Amount			23.5			23.5		72.7
Swiss franc | Foreign exchange contract | Designated as hedging instrument
Derivatives [Line Items]
Derivative, Notional Amount			43.5			43.5		166.2
Japan, Yen | Foreign exchange contract | Designated as hedging instrument
Derivatives [Line Items]
Derivative, Notional Amount			14.7			14.7		59.9
Canadian dollar | Foreign exchange contract | Designated as hedging instrument
Derivatives [Line Items]
Derivative, Notional Amount			$ 37.8			$ 37.8		$ 0.0
Samsung Bioepis
Derivatives [Line Items]
Equity, ownership interest			49.90%			49.90%
Percentage of stake in entity									5.00%
Payments to acquire additional investment in equity method investment	$ 676.6	₩ 759.5
Short-term derivative
Derivatives [Line Items]
Range of durations of foreign currency forward contracts						12 months
Gain/Loss on fair value of foreign currency forward contracts			$ 142.6			$ 142.6