Pension Benefits - Narrative (Details) - Pension Plan - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Net periodic pension expense	$ 2	$ 4	$ 4	$ 17
Cash contributions to the plans	$ 18	$ 8	$ 35	$ 19
Percentage threshold of greater of projected benefit obligation or market value of assets (percent)	10.00%		10.00%
U.K. Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Cash contributions to the plans	$ 17		$ 17
Held-for-sale | European Businesses (Disposal Group)
Defined Benefit Plan Disclosure [Line Items]
Reclassified pension liabilities	148		148
Assets held for sale	$ 52		$ 52