BENEFIT PLANS - Multiemployer Benefit Plans Other than Pensions (Details) - USD ($) $ in Millions	12 Months Ended
	Aug. 02, 2025	Aug. 03, 2024	Jul. 29, 2023
Defined Benefit Plan Disclosure [Line Items]
Contributions	$ 48	$ 47	$ 48
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Contributions	$ 90	$ 88	$ 85

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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UNITED NATURAL FOODS INC 10-K