Segment Information (Net Revenue By Platform) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Net Revenue by Platform [Line Items]
Net revenue	$ 1,914	$ 1,904	$ 3,838	$ 3,671
Console
Net Revenue by Platform [Line Items]
Net revenue	1,187	1,161	2,354	2,203
PC and other
Net Revenue by Platform [Line Items]
Net revenue	423	423	874	825
Mobile
Net Revenue by Platform [Line Items]
Net revenue	$ 304	$ 320	$ 610	$ 643