Balance Sheet and Other Details - Property and Equipment, Net (Details) - USD ($) $ in Millions	Apr. 27, 2024	Jul. 29, 2023
Property, Plant and Equipment [Line Items]
Operating lease assets	$ 120	$ 135
Total gross property and equipment	9,796	10,058
Less: accumulated depreciation and amortization	(7,796)	(7,973)
Total	2,000	2,085
Land, buildings, and building and leasehold improvements
Property, Plant and Equipment [Line Items]
Gross property and equipment, excluding operating lease assets	4,221	4,229
Computer equipment and related software
Property, Plant and Equipment [Line Items]
Gross property and equipment, excluding operating lease assets	696	744
Production, engineering, and other equipment
Property, Plant and Equipment [Line Items]
Gross property and equipment, excluding operating lease assets	4,411	4,611
Furniture, fixtures and other
Property, Plant and Equipment [Line Items]
Gross property and equipment, excluding operating lease assets	$ 348	$ 339