IMMATERIAL CORRECTION TO PRIOR PERIOD FINANCIAL STATEMENTS IMMATERIAL CORRECTION TO PRIOR PERIOD FINANCIAL STATEMENTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 01, 2020	Aug. 03, 2019	Jul. 28, 2018	Aug. 04, 2019	Jul. 29, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Inventories	$ 2,280,767	$ 2,190,681
Deferred income taxes (asset)	107,624	34,262		$ 33,423
Retained earnings	837,633	1,108,890
Cost of sales	22,639,475	19,098,850	$ 8,706,669
(Benefit) provision for income taxes	$ (90,445)	(58,936)	47,215
Revision of Vendor Consideration Recognition
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Inventories		(9,000)
Deferred income taxes (asset)		2,400
Retained earnings		(6,600)	(6,900)		$ (4,000)
Cost of sales		(400)	2,800
(Benefit) provision for income taxes		$ 100	$ 100