Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 26, 2025	Jul. 27, 2024	Jul. 29, 2023
Federal:
Current	$ 956	$ 1,939	$ 3,754
Deferred	(838)	(883)	(1,955)
Total	118	1,056	1,799
State:
Current	431	388	623
Deferred	(250)	11	(175)
Total	181	399	448
Foreign:
Current	665	559	412
Deferred	(44)	(100)	46
Total	621	459	458
Total	$ 920	$ 1,914	$ 2,705