XML 58 R44.htm IDEA: XBRL DOCUMENT
v3.7.0.1

DISCONTINUED OPERATIONS AND OTHER DIVESTITURES - Private Brands Operations (Narrative) (Details) - Discontinued operations, disposed of by sale - Private Brands - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Feb. 26, 2017 | Feb. 28, 2016 | Feb. 26, 2017 | Feb. 28, 2016 | Feb. 01, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Cash price for disposition |  |  |  |  | $ 2,600.0
Pre-tax charge to write-down goodwill and long-lived assets | $ 0.0 | $ 22.5 | $ 0.0 | $ 1,921.1 |
After-tax charge to write-down goodwill and long-lived assets |  | $ 22.1 |  | $ 1,440.0 |

X
- Definition Disposal Group, Including Discontinued Operation, Goodwill And Long-Lived Asset Impairment Charges + References No definition available. + Details
Name: | cag_DisposalGroupIncludingDiscontinuedOperationGoodwillAndLongLivedAssetImpairmentCharges
Namespace Prefix: | cag_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Disposal Group, Including Discontinued Operation, Goodwill And Long-Lived Asset Impairment Charges, Net Of Tax + References No definition available. + Details
Name: | cag_DisposalGroupIncludingDiscontinuedOperationGoodwillAndLongLivedAssetImpairmentChargesNetOfTax
Namespace Prefix: | cag_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation. + References No definition available. + Details
Name: | us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Details
Name: | us-gaap_DisposalGroupClassificationAxis=us-gaap_DiscontinuedOperationsDisposedOfBySaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=cag_PrivateBrandsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |