Balance Sheet Details (Property And Equipment, Net Schedule) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Mar. 31, 2023
Property and Equipment, Net [Line Items]
Property and equipment, gross	$ 1,658	$ 1,616
Less: accumulated depreciation	(1,116)	(1,067)
Property and equipment, net	542	549	[1]
Computer, equipment and software
Property and Equipment, Net [Line Items]
Property and equipment, gross	916	892
Buildings
Property and Equipment, Net [Line Items]
Property and equipment, gross	371	369
Leasehold improvements
Property and Equipment, Net [Line Items]
Property and equipment, gross	177	186
Equipment, furniture and fixtures, and other
Property and Equipment, Net [Line Items]
Property and equipment, gross	90	92
Land
Property and Equipment, Net [Line Items]
Property and equipment, gross	66	66
Construction in progress
Property and Equipment, Net [Line Items]
Property and equipment, gross	$ 38	$ 11

[1] Derived from audited Consolidated Financial Statements.