Balance Sheet and Other Details - Property and Equipment, Net (Details) - USD ($) $ in Millions	Oct. 26, 2024	Jul. 27, 2024
Property, Plant and Equipment [Line Items]
Operating lease assets	$ 88	$ 115
Total gross property and equipment	9,846	9,873
Less: accumulated depreciation and amortization	(7,764)	(7,783)
Total	2,082	2,090
Land, buildings, and building and leasehold improvements
Property, Plant and Equipment [Line Items]
Gross property and equipment, excluding operating lease assets	4,267	4,247
Production, engineering, computer and other equipment and related software
Property, Plant and Equipment [Line Items]
Gross property and equipment, excluding operating lease assets	5,135	5,160
Furniture, fixtures and other
Property, Plant and Equipment [Line Items]
Gross property and equipment, excluding operating lease assets	$ 356	$ 351