GOODWILL AND INTANGIBLE ASSETS, NET - Identifiable Intangible Assets (Details) - USD ($) $ in Millions	Oct. 28, 2023	Jul. 29, 2023
Schedule of Intangible Assets [Line Items]
Finite-lived intangible assets, gross	$ 1,134	$ 1,135
Intangible assets, accumulated amortization	456	438
Finite-lived intangible assets, net	678	697
Indefinite-lived intangible assets, gross carrying amount	1,159	1,160
Indefinite-lived intangible assets, accumulated amortization	456	438
Indefinite-lived intangible assets, net carrying value	703	722
Trademarks and tradenames
Schedule of Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross	25	25
Indefinite-lived intangible assets, net	25	25
Customer relationships
Schedule of Intangible Assets [Line Items]
Finite-lived intangible assets, gross	1,007	1,007
Intangible assets, accumulated amortization	368	354
Finite-lived intangible assets, net	639	653
Pharmacy prescription files
Schedule of Intangible Assets [Line Items]
Finite-lived intangible assets, gross	33	33
Intangible assets, accumulated amortization	24	22
Finite-lived intangible assets, net	9	11
Operating lease intangibles
Schedule of Intangible Assets [Line Items]
Finite-lived intangible assets, gross	6	6
Intangible assets, accumulated amortization	5	5
Finite-lived intangible assets, net	1	1
Trademarks and tradenames
Schedule of Intangible Assets [Line Items]
Finite-lived intangible assets, gross	88	89
Intangible assets, accumulated amortization	59	57
Finite-lived intangible assets, net	$ 29	$ 32