XML 45 R34.htm IDEA: XBRL DOCUMENT
v3.21.2

INCOME TAXES - EFFECTIVE INCOME TAX RATE (Details) - USD ($) $ in Millions | 4 Months Ended |
--- | --- | ---
May 22, 2021 | May 23, 2020 | Jan. 30, 2021
Effective income tax rate (as a percent) | 20.20% | 23.50% |
CARES Act- Deferred social security tax payment period | 2 years |  |
CARES Act - Deferred payment of social security taxes |  |  | $ 622
Other current liabilities |  |  |
CARES Act - Deferred payment of social security taxes |  |  | 311
Other long-term liabilities |  |  |
CARES Act - Deferred payment of social security taxes |  |  | $ 311

X
- Definition Period for payment of the deferred payable of employer portion of social security taxes under the CARES Act. + References No definition available. + Details
Name: | kr_DeferredSocialSecurityTaxPaymentPeriod
Namespace Prefix: | kr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of deferred payable of the employer portion of social security taxes under the CARES Act. + References No definition available. + Details
Name: | kr_DeferredSocialSecurityTaxes
Namespace Prefix: | kr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
Name: | us-gaap_EffectiveIncomeTaxRateContinuingOperations
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherCurrentLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherNoncurrentLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |