Goodwill and Purchased Intangible Assets - Schedule of Purchased Intangible Assets With Finite and Indefinite Lives (Details) - USD ($) $ in Millions	Oct. 26, 2024	Jul. 27, 2024
Purchased intangible assets with finite lives:
Gross	$ 14,065	$ 14,077
Accumulated Amortization	(3,347)	(2,884)
Total purchased intangible assets with finite lives, net	10,718	11,193
In-process research and development, with indefinite lives	26	26
Total finite and indefinite lives intangible assets, gross	14,091	14,103
Total finite and indefinite lives intangible assets, net	10,744	11,219
Customer related
Purchased intangible assets with finite lives:
Gross	6,856	6,844
Accumulated Amortization	(1,081)	(829)
Total purchased intangible assets with finite lives, net	5,775	6,015
Technology
Purchased intangible assets with finite lives:
Gross	6,658	6,680
Accumulated Amortization	(2,206)	(2,006)
Total purchased intangible assets with finite lives, net	4,452	4,674
Trade name
Purchased intangible assets with finite lives:
Gross	551	553
Accumulated Amortization	(60)	(49)
Total purchased intangible assets with finite lives, net	$ 491	$ 504