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Balance Sheet Details (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Mar. 31, 2012
Balance Sheet Related Disclosures [Abstract]      
Depreciation expense $ 28 $ 25  
Acquisition-related restricted cash 31   31
Deferred net revenue (packaged goods and digital content) $ 584   $ 1,048 [1]
[1] Derived from audited consolidated financial statements.