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Hedging Activities - Schedule of Derivative Instruments Gain (Loss) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Derivatives designated as cash flow and other hedges:	$ 0	$ 0	$ 0	$ 0
Derivatives designated for hedge accounting | Cross-currency swaps | Net Investment Hedging
Derivatives, Fair Value [Line Items]
Derivatives designated as net investment hedges:	106,000,000	(27,000,000)	93,000,000	(20,000,000)
Derivatives designated for hedge accounting | Cross-currency swaps | Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Derivatives designated as cash flow and other hedges:	16,000,000	9,000,000	2,000,000	36,000,000
Derivatives designated for hedge accounting | Foreign currency forwards | Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Derivatives designated as cash flow and other hedges:	(1,000,000)	(1,000,000)	1,000,000	(1,000,000)
Derivatives designated for hedge accounting | Fixed interest rate swaps | Cash Flow Hedges
Derivatives, Fair Value [Line Items]
Derivatives designated as cash flow and other hedges:	$ 0	$ (1,000,000)	$ 0	$ 15,000,000

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-11

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-15

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 4C
-Subparagraph (c)
-SubTopic 10
-Topic 815
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C

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Amount, before tax, of reclassification from accumulated other comprehensive income (AOCI) for gain (loss) from derivative designated and qualifying as net investment hedge.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4CCC
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4CCC

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