Balance Sheet and Other Details - Property and Equipment, Net (Details) - USD ($) $ in Millions	Oct. 25, 2025	Jul. 26, 2025
Property, Plant and Equipment [Line Items]
Operating lease assets	$ 49	$ 51
Total gross property and equipment	9,661	9,590
Less: accumulated depreciation and amortization	(7,413)	(7,477)
Total	2,248	2,113
Land, buildings, and building and leasehold improvements
Property, Plant and Equipment [Line Items]
Gross property and equipment, excluding operating lease assets	4,062	4,045
Production, engineering, computer and other equipment and related software
Property, Plant and Equipment [Line Items]
Gross property and equipment, excluding operating lease assets	5,232	5,178
Furniture, fixtures and other
Property, Plant and Equipment [Line Items]
Gross property and equipment, excluding operating lease assets	$ 318	$ 316