GOODWILL AND INTANGIBLE ASSETS, NET - Identifiable Intangible Assets (Details) - USD ($) $ in Millions	Jul. 30, 2022	Jul. 31, 2021
Amortizing intangible assets:
Gross Carrying Amount	$ 1,130	$ 1,131
Accumulated Amortization	367	296
Net	763	835
Intangibles assets, net
Gross Carrying Amount	1,186	1,187
Accumulated Amortization	367	296
Net	819	891
Trademarks and tradenames
Intangibles assets, net
Indefinite lived intangible assets	56	56
Customer relationships
Amortizing intangible assets:
Gross Carrying Amount	1,007	1,007
Accumulated Amortization	294	234
Net	713	773
Intangibles assets, net
Accumulated Amortization	294	234
Pharmacy prescription files
Amortizing intangible assets:
Gross Carrying Amount	33	33
Accumulated Amortization	18	13
Net	15	20
Intangibles assets, net
Accumulated Amortization	18	13
Operating lease intangibles
Amortizing intangible assets:
Gross Carrying Amount	6	7
Accumulated Amortization	4	4
Net	2	3
Intangibles assets, net
Accumulated Amortization	4	4
Trademarks and tradenames
Amortizing intangible assets:
Gross Carrying Amount	84	84
Accumulated Amortization	51	45
Net	33	39
Intangibles assets, net
Accumulated Amortization	$ 51	$ 45