Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 27, 2024	Jul. 29, 2023	Jul. 30, 2022
Federal:
Current	$ 1,939	$ 3,754	$ 2,203
Deferred	(883)	(1,955)	(176)
Total	1,056	1,799	2,027
State:
Current	388	623	458
Deferred	11	(175)	(156)
Total	399	448	302
Foreign:
Current	559	412	313
Deferred	(100)	46	23
Total	459	458	336
Total	$ 1,914	$ 2,705	$ 2,665