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HELD FOR SALE AND DISPOSAL OF BUSINESS (Details) - USD ($) $ in Millions			3 Months Ended	9 Months Ended
	Apr. 26, 2019	Mar. 13, 2019	Nov. 09, 2019	Nov. 09, 2019	Nov. 10, 2018
HELD FOR SALE
Gain on sale of businesses				$ 176	$ 1,782
Impairment charges				238
Impairment of finance lease assets				40
Operating Lease, Impairment Loss				$ 29
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
Gain on sale of business, net of tax		$ 52
Term to be recorded as sales		10 years
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
Turkey Hill Dairy Business \| Disposed by Sale
HELD FOR SALE
Proceeds received upon closing	$ 225
Gain on sale of businesses	106
Gain on sale of business, net of tax	$ 80
Lucky's Market \| Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations
HELD FOR SALE
Impairment charges			$ 238
Impairment of property, plant and equipment			200
Impairment of finance lease assets			40
Goodwill Impairment			19
Operating Lease, Impairment Loss			11
Asset impairment other charge			8
Impairment charges attributable to The Kroger Co., net of tax			131
Impairment charges attributable to The Kroger Co.			$ 100