CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions		12 Months Ended
		Jul. 29, 2023	Jul. 30, 2022	Jul. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income including noncontrolling interests		$ 30	$ 254	$ 155
Other comprehensive (loss) income:
Recognition of pension and other postretirement benefit obligations, net of tax	[1]	(18)	(40)	153
Recognition of interest rate swap cash flow hedges, net of tax	[2]	14	60	42
Foreign currency translation adjustments		(2)	(3)	5
Recognition of other cash flow derivatives, net of tax	[3]	(2)	2	0
Total other comprehensive (loss) income		(8)	19	200
Less comprehensive income attributable to noncontrolling interests		(6)	(6)	(6)
Total comprehensive income attributable to United Natural Foods, Inc.		$ 16	$ 267	$ 349

[1] Amounts are net of tax (benefit) expense of $(7) million, $(12) million and $52 million, respectively.

[2] Amounts are net of tax (benefit) expense of $5 million, $22 million and $13 million, respectively.

[3] Amounts are net of tax (benefit) expense of $(1) million, $1 million, and $0 million, respectively.