XML 95 R78.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

CONTINGENCIES (Details) |  |  | 6 Months Ended |
--- | --- | --- | --- | ---
Jul. 24, 2019 USD ($) Installment | Jan. 27, 2014 USD ($) defendant | Nov. 24, 2019 USD ($) suit site period | Sep. 04, 2018 USD ($)
Lamb Weston |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Number of optional extension periods | period |  |  | 2 |
Period of optional extensions |  |  | 5 years |
Beatrice |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Number of sites under environmental matters for which acquired company has a liability | site |  |  | 40 |
Accrual for environmental matters |  |  | $ 58,600,000 |
Increase in environmental reserves |  |  | 6,600,000 |
Performance and payment guarantee for Lamb Weston |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Guarantee under sublease agreement (maximum) |  |  | 75,000,000.0 |
Guarantee to make payments |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Guarantee under sublease agreement (maximum) |  |  | $ 900,000 |
Remaining lease terms |  |  | 4 years |
Performance and payment of all amounts under sublease agreement |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Guarantee under sublease agreement (maximum) |  |  | $ 17,800,000 |
Remaining lease terms |  |  | 7 years |
Illinois |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Remaining defendants in active suits | suit |  |  | 1 |
California | Beatrice |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Number of other defendants | defendant |  | 2 |  |
Estimate of possible loss |  | $ 1,150,000,000 |  | $ 409,000,000.0
Total payments to be made under settlement | $ 101,700,000 |  |  |
Number of annual installments to be made | Installment | 7 |  |  |
California | Beatrice | Maximum |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Litigation settlement, amount of guarantee provided | $ 15,000,000.0 |  |  |
California | Beatrice | Minimum | Other accrued liabilities |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Amount accrued |  |  | $ 10,900,000 |
California | Beatrice | Minimum | Other noncurrent liabilities |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Amount accrued |  |  | $ 63,300,000 |

X
- Definition Environmental loss contingencies, number of sites under environmental matters for which acquired company has liability. + References No definition available. + Details
Name: | cag_EnvironmentalLossContingenciesNumberOfSitesUnderEnvironmentalMattersForWhichAcquiredCompanyHasLiability
Namespace Prefix: | cag_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Lease, remaining lease terms. + References No definition available. + Details
Name: | cag_LeaseRemainingLeaseTerms
Namespace Prefix: | cag_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Litigation settlement amount of guarantee. + References No definition available. + Details
Name: | cag_LitigationSettlementAmountOfGuarantee
Namespace Prefix: | cag_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Loss Contingency, Number of Additional Defendants + References No definition available. + Details
Name: | cag_LossContingencyNumberOfAdditionalDefendants
Namespace Prefix: | cag_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Loss contingency number of suits. + References No definition available. + Details
Name: | cag_LossContingencyNumberOfSuits
Namespace Prefix: | cag_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Loss Contingency, Settlement Agreement, Terms, Number of Installments. + References No definition available. + Details
Name: | cag_LossContingencySettlementAgreementTermsNumberOfInstallments
Namespace Prefix: | cag_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Optional Extension Periods For Sublease Agreement + References No definition available. + Details
Name: | cag_NumberOfOptionalExtensionPeriodsForSubleaseAgreement
Namespace Prefix: | cag_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total costs accrued as of the balance sheet date for environmental loss contingencies. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6395460&loc=d3e13647-108346 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859 + Details
Name: | us-gaap_AccrualForEnvironmentalLossContingencies
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Increase (decrease) in the accrual for environmental loss contingencies during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.Y.Q2) -URI http://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751 + Details
Name: | us-gaap_AccrualForEnvironmentalLossContingenciesPeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

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_GuaranteeObligationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=118943654&loc=d3e12069-110248 + Details
Name: | us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseRenewalTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount awarded to other party in judgment or settlement of litigation. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementAmountAwardedToOtherParty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of loss contingency liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349 + Details
Name: | us-gaap_LossContingencyAccrualAtCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Reflects the estimated amount of loss from the specified contingency as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14557-108349 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118943654&loc=d3e12021-110248 + Details
Name: | us-gaap_LossContingencyEstimateOfPossibleLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | dei_LegalEntityAxis=cag_LambWestonHoldingsIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GuaranteeObligationsByNatureAxis=cag_BeatriceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GuaranteeObligationsByNatureAxis=cag_PerformanceAndPaymentGuaranteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_PaymentGuaranteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_PropertyLeaseGuaranteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_IL
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=stpr_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=cag_OtherAccruedLiabilitiesMember
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: |