BENEFIT PLANS - Weighted Average Assumptions (Details)	12 Months Ended
	Aug. 01, 2020	Aug. 03, 2019
Benefit obligation assumptions:
Discount rate (as a percent)	3.10%
Minimum
Benefit obligation assumptions:
Discount rate (as a percent)	1.74%	2.99%
Net periodic benefit cost assumptions:
Discount rate (as a percent)	2.99%	4.30%
Expected return on plan assets (as a percent)	2.00%	2.25%
Maximum
Benefit obligation assumptions:
Discount rate (as a percent)	2.37%	3.49%
Net periodic benefit cost assumptions:
Discount rate (as a percent)	3.49%	4.42%
Expected return on plan assets (as a percent)	5.75%	6.50%