Segment Information (Net Revenue By Geographic Area) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Revenue from External Customer [Line Items]
Net revenue	$ 1,789	$ 1,673	$ 5,166	$ 4,283
North America
Revenue from External Customer [Line Items]
Net revenue	783	678	2,243	1,883
International
Revenue from External Customer [Line Items]
Net revenue	$ 1,006	$ 995	$ 2,923	$ 2,400