Goodwill and Intangible Assets, Net - Schedule of Information Regarding Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2023	Mar. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 3,968	$ 5,398
Accumulated Amortization	(1,871)	(3,121)
Net Carrying Amount	2,097	2,277
Derecognition of finite-lived intangible assets	$ 1,400
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Amortization Period (Years)	11 years
Gross Carrying Amount	$ 1,800	2,971
Accumulated Amortization	(676)	(1,765)
Net Carrying Amount	$ 1,124	1,206
Service agreements
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Amortization Period (Years)	10 years
Gross Carrying Amount	$ 1,131	1,137
Accumulated Amortization	(663)	(623)
Net Carrying Amount	$ 468	514
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Amortization Period (Years)	12 years
Gross Carrying Amount	$ 760	833
Accumulated Amortization	(388)	(430)
Net Carrying Amount	$ 372	403
Technology
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Amortization Period (Years)	10 years
Gross Carrying Amount	$ 244	264
Accumulated Amortization	(120)	(129)
Net Carrying Amount	$ 124	135
Other
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Amortization Period (Years)	6 years
Gross Carrying Amount	$ 33	193
Accumulated Amortization	(24)	(174)
Net Carrying Amount	$ 9	$ 19