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Derivative Instruments - Narrative (Details) $ in Millions	12 Months Ended
	Mar. 31, 2025 USD ($) counterparty	Mar. 31, 2024 USD ($)
Derivative [Line Items]
Number of counterparties | counterparty	3
Designated as Hedging Instrument
Derivative [Line Items]
Foreign currency cash flow hedge loss to be reclassified into earnings during next 12 months	$ 4
Not Designated as Hedging Instrument | Foreign currency forward contracts
Derivative [Line Items]
Notional amount of derivative	1,900	$ 1,500
Cash Flow Hedges | Designated as Hedging Instrument | Foreign currency forward contracts
Derivative [Line Items]
Notional amount of derivative	668	885
Net Investment Hedging | Designated as Hedging Instrument | Foreign currency-denominated debt
Derivative [Line Items]
Notional amount of derivative	$ 702	$ 702

X

- Definition

Concentration Risk, Credit Risk, Financial Instrument, Number of Counterparties

+ References

No definition available.

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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480237/815-40-50-5

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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-1B

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-1A

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- Definition

The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480870/815-30-50-1

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