Employee Benefit Plans - Summary of Restricted Stock and Stock Unit Activity (Details) - Restricted Stock Units - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended	12 Months Ended
	Oct. 28, 2023	Jul. 29, 2023
Restricted Stock/ Stock Units
Beginning balance (in shares)	122	97
Granted and assumed (in shares)	11	72
Vested (in shares)	(9)	(39)
Canceled/forfeited/other (in shares)	(1)	(8)
Ending balance (in shares)	123	122
Weighted-Average Grant Date Fair Value per Share
Beginning balance (in dollars per share)	$ 44.04	$ 46.67
Granted and assumed (in dollars per share)	51.70	42.08
Vested (in dollars per share)	44.86	46.69
Canceled/forfeited/other (in dollars per share)	41.31	45.17
Ending balance (in dollars per share)	$ 44.69	$ 44.04
Aggregate Fair  Value
Vested	$ 460	$ 1,746