Balance Sheet Details (Accrued And Other Current Liabilities Schedule) (Details) - USD ($) $ in Millions	Sep. 30, 2018	Apr. 01, 2018	Mar. 31, 2018
Balance Sheet Related Disclosures
Other accrued expenses	$ 359		$ 260
Accrued compensation and benefits	172		282
Accrued royalties	155		171
Contract with Customer, Liability, Current	108		0
Deferred net revenue, other	113		108
Accrued and other current liabilities	907		$ 821	[1]
Other [Member]
Balance Sheet Related Disclosures
Deferred net revenue, other	$ 113	$ 105

[1] Derived from audited Consolidated Financial Statements.