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Balance Sheet and Other Details - Property and Equipment, Net (Details) - USD ($)
$ in Millions
Jul. 30, 2022
Jul. 31, 2021
Property, Plant and Equipment [Line Items]    
Operating lease assets $ 185 $ 273
Total gross property and equipment 10,165 10,918
Less: accumulated depreciation and amortization (8,168) (8,580)
Total 1,997 2,338
Land, buildings, and building and leasehold improvements    
Property, Plant and Equipment [Line Items]    
Gross property and equipment, excluding operating lease assets 4,219 4,304
Computer equipment and related software    
Property, Plant and Equipment [Line Items]    
Gross property and equipment, excluding operating lease assets 779 858
Production, engineering, and other equipment    
Property, Plant and Equipment [Line Items]    
Gross property and equipment, excluding operating lease assets 4,647 5,106
Furniture, fixtures and other    
Property, Plant and Equipment [Line Items]    
Gross property and equipment, excluding operating lease assets $ 335 $ 377