Balance Sheet Details (Accrued And Other Current Liabilities Schedule) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Mar. 31, 2020
Balance Sheet Related Disclosures [Abstract]
Other accrued expenses	$ 360	$ 273
Accrued compensation and benefits	402	326
Accrued royalties	267	171
Contract with Customer, Liability, Current	182	109
Deferred net revenue, other	126	104
Operating Lease, Liability, Current	86	69
Accrued and other current liabilities	$ 1,423	$ 1,052	[1]

[1] Derived from audited Consolidated Financial Statements.