BENEFIT PLANS - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 31, 2020	Nov. 02, 2019
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected future employer contributions, current fiscal year	$ 5.3
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Multiemployer plan, contributions by employer	$ 11.9	$ 13.5