Balance Sheet and Other Details - Property and Equipment, Net (Details) - USD ($) $ in Millions	Jan. 27, 2024	Jul. 29, 2023
Property, Plant and Equipment [Line Items]
Operating lease assets	$ 125	$ 135
Total gross property and equipment	9,835	10,058
Less: accumulated depreciation and amortization	(7,830)	(7,973)
Total	2,005	2,085
Land, buildings, and building and leasehold improvements
Property, Plant and Equipment [Line Items]
Gross property and equipment, excluding operating lease assets	4,214	4,229
Computer equipment and related software
Property, Plant and Equipment [Line Items]
Gross property and equipment, excluding operating lease assets	691	744
Production, engineering, and other equipment
Property, Plant and Equipment [Line Items]
Gross property and equipment, excluding operating lease assets	4,466	4,611
Furniture, fixtures and other
Property, Plant and Equipment [Line Items]
Gross property and equipment, excluding operating lease assets	$ 339	$ 339