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Comprehensive Income (Details) (USD $)
In Millions, unless otherwise specified
May 05, 2012
Mar. 03, 2012
Apr. 30, 2011
Components of accumulated other comprehensive income (loss):      
Foreign currency translation $ 101 $ 93 $ 201
Unrealized gains (losses) on available-for-sale investments (3) (3) 71
Unrealized gains (losses) on derivative instruments (cash flow hedges) 0 0 2
Total $ 98 $ 90 $ 274