DISCONTINUED OPERATIONS - Narrative (Details) $ in Millions	12 Months Ended
	Jul. 30, 2022 USD ($)	Jul. 31, 2021 USD ($) store	Aug. 01, 2020 USD ($)	Aug. 01, 2021 store
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 28,928	$ 26,950	$ 26,559
Wholesale | Operating Segments
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue from contract with customer, excluding assessed tax	27,824	25,873	25,525
Discontinued Operations | Wholesale | Operating Segments
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues		$ 22	97
Discontinued Operations, Disposed of by Sale | Shop 'n Save
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of stores closed | store		13
Aggregate costs and charges incurred during phase-out		$ 31
Operating losses, severance costs and transaction costs during phase-out		25
Property and equipment impairment charges		$ 6
Discontinued Operations, Disposed of by Means Other than Sale | Shop 'n Save
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of stores closed | store		6
Retail
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue from contract with customer, excluding assessed tax	2,468	$ 2,442	2,375
Retail | Wholesale | Operating Segments
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 0	$ 0	$ 0
Retail | Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of stores held for sale | store				2