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Supplemental Financial Information - Property and Equipment Net (Detail) - USD ($)
$ in Millions
Apr. 30, 2021
Apr. 24, 2020
Aug. 26, 2019
Property Plant And Equipment [Line Items]      
Property and equipment, gross $ 1,798 $ 2,088  
Accumulated depreciation and amortization (1,273) (1,361)  
Property and equipment, net 525 727  
Land      
Property Plant And Equipment [Line Items]      
Property and equipment, gross 46 103  
Property and equipment, net     $ 53
Buildings and improvements      
Property Plant And Equipment [Line Items]      
Property and equipment, gross 356 597  
Leasehold improvements      
Property Plant And Equipment [Line Items]      
Property and equipment, gross 83 89  
Computer, production, engineering and other equipment      
Property Plant And Equipment [Line Items]      
Property and equipment, gross 869 802  
Computer software      
Property Plant And Equipment [Line Items]      
Property and equipment, gross 305 359  
Furniture and fixtures      
Property Plant And Equipment [Line Items]      
Property and equipment, gross 93 106  
Construction-in-progress      
Property Plant And Equipment [Line Items]      
Property and equipment, gross $ 46 $ 32