Goodwill and Purchased Intangible Assets - Schedule of Purchased Intangible Assets With Finite and Indefinite Lives (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jan. 25, 2025	Jan. 25, 2025	Jul. 27, 2024
Purchased intangible assets with finite lives:
Gross	$ 14,027	$ 14,027	$ 14,077
Accumulated Amortization	(3,914)	(3,914)	(2,884)
Total purchased intangible assets with finite lives, net	10,113	10,113	11,193
In-process research and development, with indefinite lives	26	26	26
Total finite and indefinite lives intangible assets, gross	14,053	14,053	14,103
Total finite and indefinite lives intangible assets, net	10,139	10,139	11,219
Impairment of purchased intangible assets	19	19
Customer related
Purchased intangible assets with finite lives:
Gross	6,854	6,854	6,844
Accumulated Amortization	(1,332)	(1,332)	(829)
Total purchased intangible assets with finite lives, net	5,522	5,522	6,015
Technology
Purchased intangible assets with finite lives:
Gross	6,622	6,622	6,680
Accumulated Amortization	(2,509)	(2,509)	(2,006)
Total purchased intangible assets with finite lives, net	4,113	4,113	4,674
Trade name
Purchased intangible assets with finite lives:
Gross	551	551	553
Accumulated Amortization	(73)	(73)	(49)
Total purchased intangible assets with finite lives, net	$ 478	$ 478	$ 504