Leases - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 30, 2022	Jul. 31, 2021
Leases [Abstract]
Weighted-average remaining lease term (in years)	4 years 8 months 12 days	5 years 2 months 12 days
Weighted-average discount rate	2.20%	1.70%
Sales-type lease term, on average	4 years
Interest income, lease receivables	$ 54	$ 75
Operating lease income	$ 107	$ 151
Product
Lessor, Lease, Description [Line Items]
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]	Total revenue	Total revenue