XML 94 R80.htm IDEA: XBRL DOCUMENT
v3.22.1

COMPANY-SPONSORED BENEFIT PLANS - FAIR VALUE OF PLAN ASSETS (Details) - USD ($) $ in Millions | Jan. 29, 2022 | Jan. 30, 2021 | Feb. 01, 2020
--- | --- | --- | ---
BENEFIT PLANS |  |  |
Fair value of plan assets | $ 156 | $ 21 |
Recurring |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 3,096 | 3,569 |
Recurring | Cash and cash equivalents |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 80 | 120 |
Recurring | Corporate Stocks |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 98 | 89 |
Recurring | Corporate Bonds |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 1,070 | 1,240 |
Recurring | U.S. Government Securities |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 144 | 225 |
Recurring | Mutual Funds |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 265 | 329 |
Recurring | Collective Trusts |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 871 | 1,014 |
Recurring | Hedge Funds |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 88 | 81 |
Recurring | Private Equity |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 326 | 289 |
Recurring | Real Estate |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 53 | 55 |
Recurring | Other equity investments |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 101 | 127 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 443 | 538 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring | Cash and cash equivalents |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 80 | 120 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring | Corporate Stocks |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 98 | 89 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Recurring | Mutual Funds |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 265 | 329 |
Significant Other Observable Inputs (Level 2) | Recurring |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 1,315 | 1,592 |
Significant Other Observable Inputs (Level 2) | Recurring | Corporate Bonds |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 1,070 | 1,240 |
Significant Other Observable Inputs (Level 2) | Recurring | U.S. Government Securities |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 144 | 225 |
Significant Other Observable Inputs (Level 2) | Recurring | Other equity investments |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 101 | 127 |
Significant Unobservable Inputs (Level 3) | Recurring |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 76 | 74 |
Significant Unobservable Inputs (Level 3) | Recurring | Hedge Funds |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 39 | 35 | $ 43
Significant Unobservable Inputs (Level 3) | Recurring | Real Estate |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 37 | 39 | $ 43
Assets Measured at NAV | Recurring |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 1,262 | 1,365 |
Assets Measured at NAV | Recurring | Collective Trusts |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 871 | 1,014 |
Assets Measured at NAV | Recurring | Hedge Funds |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 49 | 46 |
Assets Measured at NAV | Recurring | Private Equity |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | 326 | 289 |
Assets Measured at NAV | Recurring | Real Estate |  |  |
BENEFIT PLANS |  |  |
Fair value of plan assets | $ 16 | $ 16 |

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(02) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
Name: | us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_DefinedBenefitPlanCashAndCashEquivalentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=kr_CorporateStocksMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_USTreasuryAndGovernmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_MutualFundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=kr_CollectiveTrustsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_HedgeFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_PrivateEquityFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_DefinedBenefitPlanRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=kr_OtherInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |