Derivatives used in net investment hedge, net of tax, excluded component increase (decrease)

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Equity Method Investment, Ownership Percentage Before Additional Purchase Transaction

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Amount of net unrealized gain (loss) related to the change in fair value of foreign currency exchange rate derivatives designated as cash flow hedging instruments. Recorded in accumulated other comprehensive income to the extent that the cash flow hedge is determined to be effective.

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Unrealized Gross Gains on Foreign Currency Derivatives, Net, before Tax

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Unrealized Gross Losses on Foreign Currency Derivatives, Net, before Tax

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Amount, after tax, of accumulated gain (loss) from increase (decrease) in value of excluded component of derivative hedge.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Nominal or face amount used to calculate payment on derivative.

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Period remaining until the derivative contract matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

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Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

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Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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Amount, before tax and adjustments, of gain (loss) from increase (decrease) in value of excluded component of derivative designated and qualifying as hedge. Adjustments include, but are not limited to, reclassifications for sale and settlement, and amounts recognized under systematic and rational method.

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Amount of increase (decrease) in the cumulative translation adjustment from gain (loss), after tax, on foreign currency derivatives, that are designated as, and are effective as, economic hedges of a net investment in a foreign entity.

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Derivative Instruments (Details) $ in Millions, ₩ in Billions	1 Months Ended		3 Months Ended			6 Months Ended	9 Months Ended
	Nov. 30, 2018 USD ($)	Nov. 30, 2018 KRW (₩)	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2020	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)
Derivatives [Line Items]
Gain/Loss on fair value of foreign currency forward contracts			$ 41.5					$ (212.5)
Net gains (losses) of other income (expense) related to foreign currency forward contracts			(17.4)	$ (2.4)
Unrealized Gross Losses on Foreign Currency Derivatives, Net, before Tax			73.5
Unrealized Gross Gains on Foreign Currency Derivatives, Net, before Tax			32.0
Gains (losses) on net investment hedges			$ 22.4	23.0
Minimum
Derivatives [Line Items]
Range of durations of foreign currency forward contracts			1 month			1 month
Maximum
Derivatives [Line Items]
Range of durations of foreign currency forward contracts			21 months			24 months
Not designated as hedging instrument
Derivatives [Line Items]
Derivative, Notional Amount			$ 1,358.8					1,158.0
Other current assets \| Designated as hedging instrument
Derivatives [Line Items]
Derivative asset, fair value			20.6					0.0
Other current assets \| Not designated as hedging instrument
Derivatives [Line Items]
Derivative asset, fair value			12.7					20.5
Other noncurrent assets \| Designated as hedging instrument
Derivatives [Line Items]
Derivative asset, fair value			15.2					0.0
Accrued expenses and other \| Designated as hedging instrument
Derivatives [Line Items]
Derivative liability, fair value			60.8					157.1
Accrued expenses and other \| Not designated as hedging instrument
Derivatives [Line Items]
Derivative liability, fair value			27.8					4.7
Foreign exchange contract \| Designated as hedging instrument
Derivatives [Line Items]
Derivative, Notional Amount			3,186.4					3,229.7
Interest rate swap \| Designated as hedging instrument
Derivatives [Line Items]
Derivative, Notional Amount			675.0
Cash Flow Hedging [Member] \| Foreign exchange contract \| Other long-term liabilities
Derivatives [Line Items]
Derivative liability, fair value			$ 0.0					35.7
Fair Value Hedging [Member] \| Interest rate swap \| Accrued expenses and other
Derivatives [Line Items]
Derivative liability, fair value								2.3
Net Investment Hedging
Derivatives [Line Items]
Remaining duration of Net Investment Hedges			7 months
Unrealized gain (loss) on net investment hedges in AOCI			$ 2.7				$ 21.2
Derivative qualifying as net investment hedge, excluded component			0.1					0.2
Gains (losses) on net investment hedges			23.8	24.2
Gains (losses) on net investment hedge, excluded component			(1.4)	(0.3)
Net Investment Hedging \| Foreign exchange contract \| Other current assets
Derivatives [Line Items]
Derivative asset, fair value			2.7					0.0
Net Investment Hedging \| Foreign exchange contract \| Accrued expenses and other
Derivatives [Line Items]
Derivative liability, fair value			0.0					19.7
Interest Expense \| Interest rate swap
Derivatives [Line Items]
Gain on interest rate swap			3.3
Revenue \| Foreign exchange contract
Derivatives [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax			(23.1)	27.0
Revenue \| Cash flows, revenue \| Foreign exchange contract
Derivatives [Line Items]
Gain on interest rate swap			(3.0)	9.3
Operating expense \| Foreign exchange contract
Derivatives [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax			(0.4)	(0.1)
Operating expense \| Cash flows, operating expenses \| Foreign exchange contract
Derivatives [Line Items]
Gain on interest rate swap			(0.1)	(0.9)
Other income (expense) \| Net Investment Hedging
Derivatives [Line Items]
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments and Tax			0.1	$ 0.9
Euro \| Foreign exchange contract \| Designated as hedging instrument
Derivatives [Line Items]
Derivative, Notional Amount			2,657.6					2,979.1
British pound \| Foreign exchange contract \| Designated as hedging instrument
Derivatives [Line Items]
Derivative, Notional Amount			98.5					0.0
Swiss franc \| Foreign exchange contract \| Designated as hedging instrument
Derivatives [Line Items]
Derivative, Notional Amount			190.4					250.6
Japan, Yen \| Foreign exchange contract \| Designated as hedging instrument
Derivatives [Line Items]
Derivative, Notional Amount			80.5					0.0
Canadian dollar \| Foreign exchange contract \| Designated as hedging instrument
Derivatives [Line Items]
Derivative, Notional Amount			$ 159.4					$ 0.0
2.900% Senior Notes due 2020
Derivatives [Line Items]
Senior notes interest rate			2.90%
Samsung Bioepis
Derivatives [Line Items]
Percentage of stake in entity				5.00%
Equity Method Investment, Ownership Percentage			49.90%
Payments to acquire additional investment in equity method investment	$ 676.6	₩ 759.5			$ 676.6
Short-term derivative
Derivatives [Line Items]
Gain/Loss on fair value of foreign currency forward contracts			$ 54.3
Range of durations of foreign currency forward contracts			12 months