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Balance Sheet Details - Property and Equipment Net (Detail) - USD ($)
$ in Millions
Jul. 29, 2016
Apr. 29, 2016
Property Plant And Equipment [Line Items]    
Property and equipment, gross $ 2,218 $ 2,191
Accumulated depreciation and amortization (1,276) (1,254)
Property and equipment, net 942 937
Land    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 215 215
Buildings and improvements    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 605 605
Leasehold improvements    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 106 106
Computer, production, engineering and other equipment    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 744 751
Computer software    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 352 352
Furniture and fixtures    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 88 88
Construction-in-progress    
Property Plant And Equipment [Line Items]    
Property and equipment, gross $ 108 $ 74