Balance Sheet Details (Accrued And Other Current Liabilities Schedule) (Details) (USD $) In Millions	Sep. 30, 2011	Mar. 31, 2011
Balance Sheet Details [Abstract]
Other accrued expenses	$ 418	$ 359
Accrued compensation and benefits	162	232
Accrued royalties	129	96
Deferred net revenue (other)	83	81
Accrued and other current liabilities	$ 792	$ 768	[1]

[1] Derived from audited consolidated financial statements.