Segment Information (Net Revenue By Geographic Area) (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Revenue from External Customer [Line Items]
Net revenue	$ 6,991	$ 5,629	$ 5,537
North America Segment [Member]
Revenue from External Customer [Line Items]
Net revenue	3,039	2,474	2,270
International [Member]
Revenue from External Customer [Line Items]
Net revenue	$ 3,952	$ 3,155	$ 3,267