LEASES - Lease Terms and Discount Rates (Details)	Jul. 31, 2021	Jul. 25, 2020
Weighted-average remaining lease term (years)
Operating leases	12 years 6 months	13 years 3 months 18 days
Finance leases	14 years 4 months 24 days	15 years 4 months 24 days
Weighted-average discount rate
Operating leases	3.90%	3.90%
Finance leases	8.50%	8.50%