v2.4.0.6
Goodwill and Purchased Intangible Assets (Schedule Of Purchased Intangible Assets With Finite And Indefinite Lives) (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Jul. 28, 2012
Jul. 30, 2011
Jul. 28, 2012
Technology
Jul. 30, 2011
Technology
Jul. 28, 2012
Customer Relationships
Jul. 30, 2011
Customer Relationships
Jul. 28, 2012
Other
Jul. 30, 2011
Other
Jul. 28, 2012
Total Purchased Intangible Assets With Finite Lives
Jul. 30, 2011
Total Purchased Intangible Assets With Finite Lives
Jul. 30, 2011
In-Process Research & Development
Business Acquisition [Line Items]                      
Total purchased intangible assets with finite lives, Gross   $ 4,539 $ 2,267 $ 1,961 $ 2,261 $ 2,277 $ 49 $ 123 $ 4,577 $ 4,361  
Total, Accumulated Amortization   (1,998) (908) (561) (1,669) (1,346) (41) (91) (2,618) (1,998)  
Total purchased intangible assets with finite lives, Net 1,959 2,541 1,359 1,400 592 931 8 32 1,959 2,363  
IPR&D, with indefinite lives                     178
Total, Accumulated Amortization                       
IPR&D, with indefinite lives                     $ 178