Pension Benefits - Schedule of Changes in Benefit Obligations and Plan Assets (Details) - Pension Plans, Defined Benefit - Non-U.S. Plans - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Change in benefit obligations
Benefit obligation at beginning of period	$ 172	$ 701
Service cost	2	5	$ 11
Interest cost	8	7	14
Actuarial gain	0	(65)
Benefits paid	(9)	(11)
Curtailment/settlement	0	(3)
Expenses paid	0	(1)
Divestitures	0	(408)
Foreign exchange impact and other	1	(53)
Benefit obligation at end of period	174	172	701
Change in plan assets
Fair value of plan assets at beginning of period	174	681
Actual return on plan assets	(1)	(51)
Employer and participant contributions	5	7
Benefits paid	(9)	(11)
Expenses paid	0	(1)
Settlements	0	(3)
Divestitures	0	(393)
Foreign exchange impact and other	2	(55)
Fair value of plan assets at end of period	171	174	$ 681
Funded status at end of period	(3)	2
Amounts recognized on the balance sheet
Current assets	0	0
Long-term assets	18	24
Current liabilities	(1)	(1)
Long-term liabilities	(20)	(21)
Total	$ (3)	$ 2