Balance Sheet Details (Accrued And Other Current Liabilities Schedule) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Mar. 31, 2012
Balance Sheet Related Disclosures [Abstract]
Other accrued expenses	$ 404	$ 441
Accrued compensation and benefits	169	233
Deferred net revenue (other)	175	85
Accrued royalties	126	98
Accrued and other current liabilities	$ 874	$ 857	[1]

[1] Derived from audited consolidated financial statements.