HELD FOR SALE AND DISPOSAL OF BUSINESS (Details) - USD ($) $ in Millions			3 Months Ended				4 Months Ended		12 Months Ended
	Apr. 26, 2019	Mar. 13, 2019	Feb. 01, 2020	Nov. 09, 2019	Feb. 02, 2019	Aug. 18, 2018	May 25, 2019	May 26, 2018	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
HELD FOR SALE
Gain on sale of businesses						$ 11	$ 176	$ 1,771	$ 176	$ 1,782
Gain on sale of business, net of tax								$ 1,352
Asset Impairment Charges			$ 0		$ 0
Impairment of finance lease assets									40
Goodwill impairment charge											$ 110
Operating Lease, Impairment Loss									70
Other long-lived asset impairment charge									120	56	$ 71
Assets held for sale:
Total assets held for sale					166					166
Liabilities held for sale:
Total liabilities held for sale					51					51
You Technology business unit | Disposed by Sale
HELD FOR SALE
Consideration for sale		$ 565
Proceeds received upon closing		396
Preferred equity		64
Other cash consideration		$ 105
Other cash consideration receivable period		5 years
Gain on sale of businesses		$ 70					70
Gain on sale of business, net of tax		52					52
You Technology business unit | Disposed by Sale | Other current liabilities and Other long-term liabilities
HELD FOR SALE
Fair value of long-term service agreement		$ 358
Term to be recorded as sales		10 years
Turkey Hill Dairy Business | Disposed by Sale
HELD FOR SALE
Proceeds received upon closing	$ 225
Gain on sale of businesses	106						106
Gain on sale of business, net of tax	$ 80						$ 80
Turkey Hill Dairy and You Technology | Disposal Group, Held-for-sale, Not Discontinued Operations
Assets held for sale:
Cash and temporary cash investments					1					1
Receivables					64					64
FIFO inventory					21					21
LIFO reserve					(1)					(1)
Prepaid and other current assets					3					3
Property, plant and equipment, net					77					77
Goodwill					1					1
Total assets held for sale					166					166
Liabilities held for sale:
Trade accounts payable					26					26
Accrued salaries and wages					8					8
Other current liabilities					17					17
Total liabilities held for sale					$ 51					$ 51
Lucky's Market | Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations
HELD FOR SALE
Asset Impairment Charges				$ 238
Impairment of property, plant and equipment				200
Impairment of finance lease assets				40
Goodwill impairment charge				19
Operating Lease, Impairment Loss				11					11
Other long-lived asset impairment charge				8
Non-cash charges, before tax			174
Non-cash charges, net of tax			$ 125
Impairment charges attributable to The Kroger Co.				131					305
Impairment charges attributable to The Kroger Co., net of tax				$ 100					$ 225