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	Jan. 24, 2026	Jul. 26, 2025
Finite-Lived Intangible Assets, Net [Abstract]
Gross			$ 12,079	$ 12,121
Accumulated Amortization			(3,772)	(2,946)
Total			8,307	9,175
Impairment charges	$ 19	$ 19
Customer related
Finite-Lived Intangible Assets, Net [Abstract]
Gross			6,340	6,341
Accumulated Amortization			(1,707)	(1,268)
Total			4,633	5,073
Technology
Finite-Lived Intangible Assets, Net [Abstract]
Gross			5,213	5,254
Accumulated Amortization			(1,970)	(1,606)
Total			3,243	3,648
Trade name
Finite-Lived Intangible Assets, Net [Abstract]
Gross			526	526
Accumulated Amortization			(95)	(72)
Total			$ 431	$ 454