Leases - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 27, 2024	Jul. 29, 2023	Jul. 30, 2022
Leases [Abstract]
Weighted-average remaining lease term (in years)	4 years 10 months 24 days	4 years 7 months 6 days
Weighted-average discount rate	4.00%	3.10%
Sales-type lease term, on average	4 years
Interest income, lease receivables	$ 65	$ 51	$ 54
Operating lease income	$ 58	$ 73	$ 107
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]	Total revenue