v2.4.0.6
Derivative Instruments (Effect Of Derivative Instruments Designated As Fair Value Hedges And Underlying Hedged Items On Consolidated Statements Of Operations) (Detail) (Derivatives Designated As Fair Value Hedging Instruments, USD $)
In Millions, unless otherwise specified
12 Months Ended
Jul. 28, 2012
Jul. 30, 2011
Jul. 31, 2010
Hedge Underlying Gain Loss [Line Items]      
Gains (losses) on derivative instruments $ 74 $ 74 $ 75
Gains (losses) related to hedged items (76) (77) (80)
Equity Derivatives | Other income, net
     
Hedge Underlying Gain Loss [Line Items]      
Gains (losses) on derivative instruments (4)   3
Gains (losses) related to hedged items 4   (3)
Interest Rate Derivatives | Interest Expense
     
Hedge Underlying Gain Loss [Line Items]      
Gains (losses) on derivative instruments 78 74 72
Gains (losses) related to hedged items $ (80) $ (77) $ (77)