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Goodwill and Intangible Assets, Net - Schedule of Information Regarding Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 5,398	$ 4,996
Accumulated Amortization	(3,121)	(2,937)
Net Carrying Amount	$ 2,277	2,059
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Amortization Period (Years)	12 years
Gross Carrying Amount	$ 2,971	2,777
Accumulated Amortization	(1,765)	(1,691)
Net Carrying Amount	$ 1,206	1,086
Service agreements
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Amortization Period (Years)	10 years
Gross Carrying Amount	$ 1,137	1,085
Accumulated Amortization	(623)	(573)
Net Carrying Amount	$ 514	512
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Amortization Period (Years)	12 years
Gross Carrying Amount	$ 833	819
Accumulated Amortization	(430)	(386)
Net Carrying Amount	$ 403	433
Technology
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Amortization Period (Years)	11 years
Gross Carrying Amount	$ 264	128
Accumulated Amortization	(129)	(116)
Net Carrying Amount	$ 135	12
Other
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Amortization Period (Years)	10 years
Gross Carrying Amount	$ 193	187
Accumulated Amortization	(174)	(171)
Net Carrying Amount	19	$ 16
Held-for-sale | European Assets Held for Sale
Finite-Lived Intangible Assets [Line Items]
Intangible assets, net	$ 384

X

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Amount classified as intangible assets, excluding goodwill, attributable to disposal group held for sale or disposed of.

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