GOODWILL AND INTANGIBLE ASSETS - GOODWILL ACQUIRED (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Feb. 03, 2018	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
Goodwill and intangibles
Goodwill, Gross	$ 5,567	$ 5,729	$ 5,567	$ 5,563
Goodwill impairment charge before tax		$ 0	110	$ 0
Kroger Specialty Pharmacy
Goodwill and intangibles
Goodwill, Gross	353		$ 353
Goodwill impairment charge before tax	110
Impairment charges after tax	$ 74

Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount after tax of loss recognized that results from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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