CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS) (unaudited) - USD ($) $ in Thousands		3 Months Ended
		Oct. 31, 2020	Nov. 02, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss) including noncontrolling interests		$ 324	$ (383,408)
Other comprehensive income (loss):
Recognition of pension and other postretirement benefit obligations, net of tax	[1]	(206)	572
Recognition of interest rate swap cash flow hedges, net of tax	[2]	12,458	(3,681)
Foreign currency translation adjustments		405	371
Recognition of other cash flow derivatives, net of tax	[3]	(433)	0
Total other comprehensive income (loss)		12,224	(2,738)
Less comprehensive income attributable to noncontrolling interests		(1,367)	(519)
Total comprehensive income (loss) attributable to United Natural Foods, Inc.		$ 11,181	$ (386,665)

[1] Amounts are net of tax (benefit) expense of $(0.1) million and $0.2 million, respectively.

[2] Amounts are net of tax expense (benefit) of $4.3 million and $(1.3) million, respectively.

[3] Amounts are net of tax (benefit) expense of $(0.1) million and $0.0 million, respectively.