Net Income per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Oct. 26, 2024	Oct. 28, 2023
Earnings Per Share [Abstract]
Net income	$ 2,711	$ 3,638
Weighted-average shares—basic (in shares)	3,990	4,057
Effect of dilutive potential common shares (in shares)	23	30
Weighted-average shares—diluted (in shares)	4,013	4,087
Net income per share—basic (in dollars per share)	$ 0.68	$ 0.90
Net income per share—diluted (in dollars per share)	$ 0.68	$ 0.89
Antidilutive employee share-based awards, excluded (in shares)	13	16