Pension Benefits - Schedule of Net Periodic Expense for Pension Plans (Details) - Pension Plans, Defined Benefit - Non-U.S. Plans - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Service cost - benefits earned during the year	$ 5	$ 11	$ 15
Interest cost on projected benefit obligation	7	14	19
Expected return on assets	(5)	(19)	(20)
Amortization of unrecognized actuarial loss and prior service costs	1	3	5
Curtailment/settlement gain	(1)	(5)	0
Net periodic pension expense	$ 7	$ 4	$ 19