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Derivative Instruments - Fair Value (Details) - USD ($) $ in Millions	Sep. 30, 2021	Mar. 31, 2021
Designated as Hedging Instrument | Fair Value Hedging
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	$ 14	$ 9
Derivative liability, fair value	1	5
Designated as Hedging Instrument | Fair Value Hedging | Foreign currency forward contracts | Other current assets
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	14	9
Designated as Hedging Instrument | Fair Value Hedging | Foreign currency forward contracts | Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	1	5
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	8	3
Derivative liability, fair value	21	3
Not Designated as Hedging Instrument | Foreign currency forward contracts | Other current assets
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	8	3
Not Designated as Hedging Instrument | Foreign currency forward contracts | Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	$ 21	$ 3

X

- Definition

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.

+ References

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-Name Accounting Standards Codification
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X

- Definition

Fair value, before effects of master netting arrangements, of a financial liability or 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 liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References

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-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
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- Definition

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.

+ References

No definition available.

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