Leases - Lease Expenses (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 27, 2024	Jan. 28, 2023	Jan. 27, 2024	Jan. 28, 2023
Leases [Abstract]
Operating lease expense	$ 103	$ 98	$ 203	$ 194
Short-term lease expense	25	17	36	34
Variable lease expense	50	63	106	121
Total lease expense	$ 178	$ 178	$ 345	$ 349