Goodwill and Intangible Assets, Net - Schedule of Information Regarding Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2023	Mar. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 5,416	$ 5,398
Accumulated Amortization	(3,195)	(3,121)
Net Carrying Amount	$ 2,221	2,277
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Amortization Period (Years)	12 years
Gross Carrying Amount	$ 2,984	2,971
Accumulated Amortization	(1,801)	(1,765)
Net Carrying Amount	$ 1,183	1,206
Service agreements
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Amortization Period (Years)	10 years
Gross Carrying Amount	$ 1,141	1,137
Accumulated Amortization	(641)	(623)
Net Carrying Amount	$ 500	514
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Amortization Period (Years)	12 years
Gross Carrying Amount	$ 843	833
Accumulated Amortization	(446)	(430)
Net Carrying Amount	$ 397	403
Technology
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Amortization Period (Years)	11 years
Gross Carrying Amount	$ 264	264
Accumulated Amortization	(133)	(129)
Net Carrying Amount	$ 131	135
Other
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Amortization Period (Years)	6 years
Gross Carrying Amount	$ 184	193
Accumulated Amortization	(174)	(174)
Net Carrying Amount	$ 10	$ 19

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
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-Name Accounting Standards Codification
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-Paragraph 1
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-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 928
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 926
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