XML 66 R54.htm IDEA: XBRL DOCUMENT v3.8.0.1
Goodwill and Purchased Intangible Assets (Schedule of Estimated Future Amortization Expense of Purchased Intangible Assets) (Details) - USD ($)
$ in Millions
Jan. 27, 2018
Jul. 29, 2017
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]    
2018 (remaining six months) $ 431  
2019 781  
2020 564  
2021 364  
2022 145  
Thereafter 72  
Total purchased intangible assets with finite lives, net $ 2,357 $ 2,428