COMPREHENSIVE (LOSS) INCOME AND ACCUMULATED OTHER COMPREHENSIVE LOSS - Changes by Component (Details) - USD ($) $ in Millions	12 Months Ended
	Aug. 02, 2025	Aug. 03, 2024	Jul. 29, 2023
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 1,641	$ 1,744	$ 1,792
Other comprehensive (loss) income before reclassifications	9	(9)	1
Net current period Other comprehensive (loss) income	5	(19)	(8)
Ending balance	1,554	1,641	1,744
Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Amortization	(5)	(12)	(11)
Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest \| Other Cash Flow Derivatives
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	0	0	2
Other comprehensive (loss) income before reclassifications	(1)	(2)	0
Amortization	1	2	(2)
Net current period Other comprehensive (loss) income	0	0	(2)
Ending balance	0	0	0
Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest \| Swap Agreements
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(1)	14	0
Other comprehensive (loss) income before reclassifications	4	(1)	23
Amortization	(6)	(14)	(9)
Net current period Other comprehensive (loss) income	(2)	(15)	14
Ending balance	(3)	(1)	14
Benefit Plans
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(22)	(21)	(3)
Other comprehensive (loss) income before reclassifications	5	(3)	(20)
Amortization	1	2	2
Net current period Other comprehensive (loss) income	6	(1)	(18)
Ending balance	(16)	(22)	(21)
Foreign Currency
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(24)	(21)	(19)
Other comprehensive (loss) income before reclassifications	1	(3)	(2)
Net current period Other comprehensive (loss) income	1	(3)	(2)
Ending balance	(23)	(24)	(21)
AOCI Attributable to Parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(47)	(28)	(20)
Net current period Other comprehensive (loss) income	5	(19)	(8)
Ending balance	$ (42)	$ (47)	$ (28)

UNITED NATURAL FOODS INC 10-K