| | | | | | | | | | | | | | | | | | | | | |
<?xml version="1.0" encoding="windows-1252"?> |
<FilingSummary> |
| <Version> 3.20.1 </Version> |
| <ProcessingTime/> |
| <ReportFormat> html </ReportFormat> |
| <ContextCount> 794 </ContextCount> |
| <ElementCount> 528 </ElementCount> |
| <EntityCount> 1 </EntityCount> |
| <FootnotesReported> false </FootnotesReported> |
| <SegmentCount> 126 </SegmentCount> |
| <ScenarioCount> 0 </ScenarioCount> |
| <TuplesReported> false </TuplesReported> |
| <UnitCount> 10 </UnitCount> |
| <MyReports> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R1.htm </HtmlFileName> |
| | | <LongName> 100000 - Document - Document and Entity Information </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DocumentDocumentAndEntityInformation </Role> |
| | | <ShortName> Document and Entity Information </ShortName> |
| | | <MenuCategory> Cover </MenuCategory> |
| | | <Position> 1 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R2.htm </HtmlFileName> |
| | | <LongName> 100010 - Statement - Condensed Consolidated Statements of Earnings </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/StatementCondensedConsolidatedStatementsOfEarnings </Role> |
| | | <ShortName> Condensed Consolidated Statements of Earnings </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 2 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R3.htm </HtmlFileName> |
| | | <LongName> 100020 - Statement - Condensed Consolidated Statements of Comprehensive Income </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/StatementCondensedConsolidatedStatementsOfComprehensiveIncome </Role> |
| | | <ShortName> Condensed Consolidated Statements of Comprehensive Income </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 3 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R4.htm </HtmlFileName> |
| | | <LongName> 100030 - Statement - Condensed Consolidated Balance Sheets </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/StatementCondensedConsolidatedBalanceSheets </Role> |
| | | <ShortName> Condensed Consolidated Balance Sheets </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 4 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R5.htm </HtmlFileName> |
| | | <LongName> 100040 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParenthetical </Role> |
| | | <ShortName> Condensed Consolidated Balance Sheets (Parenthetical) </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 5 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R6.htm </HtmlFileName> |
| | | <LongName> 100050 - Statement - Condensed Consolidated Statements of Cash Flows </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlows </Role> |
| | | <ShortName> Condensed Consolidated Statements of Cash Flows </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 6 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R7.htm </HtmlFileName> |
| | | <LongName> 100060 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES </Role> |
| | | <ShortName> SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 7 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R8.htm </HtmlFileName> |
| | | <LongName> 100070 - Disclosure - ACQUISITIONS </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureACQUISITIONS </Role> |
| | | <ShortName> ACQUISITIONS </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 8 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R9.htm </HtmlFileName> |
| | | <LongName> 100080 - Disclosure - DIVESTITURES AND ASSETS HELD FOR SALE </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureDIVESTITURESANDASSETSHELDFORSALE </Role> |
| | | <ShortName> DIVESTITURES AND ASSETS HELD FOR SALE </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 9 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R10.htm </HtmlFileName> |
| | | <LongName> 100090 - Disclosure - RESTRUCTURING ACTIVITIES </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureRESTRUCTURINGACTIVITIES </Role> |
| | | <ShortName> RESTRUCTURING ACTIVITIES </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 10 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R11.htm </HtmlFileName> |
| | | <LongName> 100100 - Disclosure - LONG-TERM DEBT AND REVOLVING CREDIT FACILITY </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureLONGTERMDEBTANDREVOLVINGCREDITFACILITY </Role> |
| | | <ShortName> LONG-TERM DEBT AND REVOLVING CREDIT FACILITY </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 11 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R12.htm </HtmlFileName> |
| | | <LongName> 100110 - Disclosure - GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureGOODWILLANDOTHERIDENTIFIABLEINTANGIBLEASSETS </Role> |
| | | <ShortName> GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 12 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R13.htm </HtmlFileName> |
| | | <LongName> 100120 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureDERIVATIVEFINANCIALINSTRUMENTS </Role> |
| | | <ShortName> DERIVATIVE FINANCIAL INSTRUMENTS </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 13 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R14.htm </HtmlFileName> |
| | | <LongName> 100130 - Disclosure - SHARE-BASED PAYMENTS </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureSHAREBASEDPAYMENTS </Role> |
| | | <ShortName> SHARE-BASED PAYMENTS </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 14 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R15.htm </HtmlFileName> |
| | | <LongName> 100140 - Disclosure - EARNINGS PER SHARE </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureEARNINGSPERSHARE </Role> |
| | | <ShortName> EARNINGS PER SHARE </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 15 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R16.htm </HtmlFileName> |
| | | <LongName> 100150 - Disclosure - INVENTORIES </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureINVENTORIES </Role> |
| | | <ShortName> INVENTORIES </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 16 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R17.htm </HtmlFileName> |
| | | <LongName> 100160 - Disclosure - INCOME TAXES </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureINCOMETAXES </Role> |
| | | <ShortName> INCOME TAXES </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 17 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R18.htm </HtmlFileName> |
| | | <LongName> 100170 - Disclosure - LEASES </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureLEASES </Role> |
| | | <ShortName> LEASES </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 18 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R19.htm </HtmlFileName> |
| | | <LongName> 100180 - Disclosure - CONTINGENCIES </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureCONTINGENCIES </Role> |
| | | <ShortName> CONTINGENCIES </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 19 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R20.htm </HtmlFileName> |
| | | <LongName> 100190 - Disclosure - PENSION AND POSTRETIREMENT BENEFITS </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosurePENSIONANDPOSTRETIREMENTBENEFITS </Role> |
| | | <ShortName> PENSION AND POSTRETIREMENT BENEFITS </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 20 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R21.htm </HtmlFileName> |
| | | <LongName> 100200 - Disclosure - STOCKHOLDERS' EQUITY </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureSTOCKHOLDERSEQUITY </Role> |
| | | <ShortName> STOCKHOLDERS' EQUITY </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 21 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R22.htm </HtmlFileName> |
| | | <LongName> 100210 - Disclosure - FAIR VALUE MEASUREMENTS </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureFAIRVALUEMEASUREMENTS </Role> |
| | | <ShortName> FAIR VALUE MEASUREMENTS </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 22 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R23.htm </HtmlFileName> |
| | | <LongName> 100220 - Disclosure - BUSINESS SEGMENTS AND RELATED INFORMATION </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureBUSINESSSEGMENTSANDRELATEDINFORMATION </Role> |
| | | <ShortName> BUSINESS SEGMENTS AND RELATED INFORMATION </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 23 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R24.htm </HtmlFileName> |
| | | <LongName> 100230 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies </Role> |
| | | <ShortName> SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) </ShortName> |
| | | <MenuCategory> Policies </MenuCategory> |
| | | <Position> 24 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R25.htm </HtmlFileName> |
| | | <LongName> 100240 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables </Role> |
| | | <ShortName> SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES </ParentRole> |
| | | <Position> 25 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R26.htm </HtmlFileName> |
| | | <LongName> 100250 - Disclosure - ACQUISITIONS (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureACQUISITIONSTables </Role> |
| | | <ShortName> ACQUISITIONS (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureACQUISITIONS </ParentRole> |
| | | <Position> 26 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R27.htm </HtmlFileName> |
| | | <LongName> 100260 - Disclosure - DIVESTITURES AND ASSETS HELD FOR SALE (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureDIVESTITURESANDASSETSHELDFORSALETables </Role> |
| | | <ShortName> DIVESTITURES AND ASSETS HELD FOR SALE (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureDIVESTITURESANDASSETSHELDFORSALE </ParentRole> |
| | | <Position> 27 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R28.htm </HtmlFileName> |
| | | <LongName> 100270 - Disclosure - RESTRUCTURING ACTIVITIES (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureRESTRUCTURINGACTIVITIESTables </Role> |
| | | <ShortName> RESTRUCTURING ACTIVITIES (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureRESTRUCTURINGACTIVITIES </ParentRole> |
| | | <Position> 28 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R29.htm </HtmlFileName> |
| | | <LongName> 100280 - Disclosure - LONG-TERM DEBT AND REVOLVING CREDIT FACILITY (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureLONGTERMDEBTANDREVOLVINGCREDITFACILITYTables </Role> |
| | | <ShortName> LONG-TERM DEBT AND REVOLVING CREDIT FACILITY (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureLONGTERMDEBTANDREVOLVINGCREDITFACILITY </ParentRole> |
| | | <Position> 29 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R30.htm </HtmlFileName> |
| | | <LongName> 100290 - Disclosure - GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureGOODWILLANDOTHERIDENTIFIABLEINTANGIBLEASSETSTables </Role> |
| | | <ShortName> GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureGOODWILLANDOTHERIDENTIFIABLEINTANGIBLEASSETS </ParentRole> |
| | | <Position> 30 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R31.htm </HtmlFileName> |
| | | <LongName> 100300 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureDERIVATIVEFINANCIALINSTRUMENTSTables </Role> |
| | | <ShortName> DERIVATIVE FINANCIAL INSTRUMENTS (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureDERIVATIVEFINANCIALINSTRUMENTS </ParentRole> |
| | | <Position> 31 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R32.htm </HtmlFileName> |
| | | <LongName> 100310 - Disclosure - EARNINGS PER SHARE (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureEARNINGSPERSHARETables </Role> |
| | | <ShortName> EARNINGS PER SHARE (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureEARNINGSPERSHARE </ParentRole> |
| | | <Position> 32 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R33.htm </HtmlFileName> |
| | | <LongName> 100320 - Disclosure - INVENTORIES (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureINVENTORIESTables </Role> |
| | | <ShortName> INVENTORIES (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureINVENTORIES </ParentRole> |
| | | <Position> 33 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R34.htm </HtmlFileName> |
| | | <LongName> 100330 - Disclosure - LEASES (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureLEASESTables </Role> |
| | | <ShortName> LEASES (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureLEASES </ParentRole> |
| | | <Position> 34 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R35.htm </HtmlFileName> |
| | | <LongName> 100340 - Disclosure - PENSION AND POSTRETIREMENT BENEFITS (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosurePENSIONANDPOSTRETIREMENTBENEFITSTables </Role> |
| | | <ShortName> PENSION AND POSTRETIREMENT BENEFITS (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosurePENSIONANDPOSTRETIREMENTBENEFITS </ParentRole> |
| | | <Position> 35 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R36.htm </HtmlFileName> |
| | | <LongName> 100350 - Disclosure - STOCKHOLDERS' EQUITY (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureSTOCKHOLDERSEQUITYTables </Role> |
| | | <ShortName> STOCKHOLDERS' EQUITY (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureSTOCKHOLDERSEQUITY </ParentRole> |
| | | <Position> 36 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R37.htm </HtmlFileName> |
| | | <LongName> 100360 - Disclosure - FAIR VALUE MEASUREMENTS (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureFAIRVALUEMEASUREMENTSTables </Role> |
| | | <ShortName> FAIR VALUE MEASUREMENTS (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureFAIRVALUEMEASUREMENTS </ParentRole> |
| | | <Position> 37 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R38.htm </HtmlFileName> |
| | | <LongName> 100370 - Disclosure - BUSINESS SEGMENTS AND RELATED INFORMATION (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureBUSINESSSEGMENTSANDRELATEDINFORMATIONTables </Role> |
| | | <ShortName> BUSINESS SEGMENTS AND RELATED INFORMATION (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureBUSINESSSEGMENTSANDRELATEDINFORMATION </ParentRole> |
| | | <Position> 38 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R39.htm </HtmlFileName> |
| | | <LongName> 100380 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Accumulated Balances for Each Component of Other Comprehensive Income (Loss), Net of Tax (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleOfAccumulatedBalancesForEachComponentOfOtherComprehensiveIncomeLossNetOfTaxDetails </Role> |
| | | <ShortName> SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Accumulated Balances for Each Component of Other Comprehensive Income (Loss), Net of Tax (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 39 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R40.htm </HtmlFileName> |
| | | <LongName> 100390 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Reclassifications From Accumulated Other Comprehensive Income (Loss) (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESSummaryOfReclassificationsFromAccumulatedOtherComprehensiveIncomeLossDetails </Role> |
| | | <ShortName> SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Reclassifications From Accumulated Other Comprehensive Income (Loss) (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 40 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R41.htm </HtmlFileName> |
| | | <LongName> 100400 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESNarrativeDetails </Role> |
| | | <ShortName> SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 41 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R42.htm </HtmlFileName> |
| | | <LongName> 100410 - Disclosure - ACQUISITIONS (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureACQUISITIONSDetails </Role> |
| | | <ShortName> ACQUISITIONS (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureACQUISITIONSTables </ParentRole> |
| | | <Position> 42 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R43.htm </HtmlFileName> |
| | | <LongName> 100420 - Disclosure - ACQUISITIONS - Initial Estimated Fair Values of Assets Acquired and Liabilities Assumed (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureACQUISITIONSInitialEstimatedFairValuesOfAssetsAcquiredAndLiabilitiesAssumedDetails </Role> |
| | | <ShortName> ACQUISITIONS - Initial Estimated Fair Values of Assets Acquired and Liabilities Assumed (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 43 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R44.htm </HtmlFileName> |
| | | <LongName> 100430 - Disclosure - ACQUISITIONS - Pro Forma Information (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureACQUISITIONSProFormaInformationDetails </Role> |
| | | <ShortName> ACQUISITIONS - Pro Forma Information (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 44 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R45.htm </HtmlFileName> |
| | | <LongName> 100440 - Disclosure - DIVESTITURES AND ASSETS HELD FOR SALE - Lender's Bagel Business (Narrative) (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureDIVESTITURESANDASSETSHELDFORSALELenderSBagelBusinessNarrativeDetails </Role> |
| | | <ShortName> DIVESTITURES AND ASSETS HELD FOR SALE - Lender's Bagel Business (Narrative) (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 45 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R46.htm </HtmlFileName> |
| | | <LongName> 100450 - Disclosure - DIVESTITURES AND ASSETS HELD FOR SALE - Schedule of Assets and Liabilities Classified as Held for Sale (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureDIVESTITURESANDASSETSHELDFORSALEScheduleOfAssetsAndLiabilitiesClassifiedAsHeldForSaleDetails </Role> |
| | | <ShortName> DIVESTITURES AND ASSETS HELD FOR SALE - Schedule of Assets and Liabilities Classified as Held for Sale (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 46 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R47.htm </HtmlFileName> |
| | | <LongName> 100460 - Disclosure - DIVESTITURES AND ASSETS HELD FOR SALE - Schedule of Assets and Liabilities Classified as Held for Sale (Parenthetical) (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureDIVESTITURESANDASSETSHELDFORSALEScheduleOfAssetsAndLiabilitiesClassifiedAsHeldForSaleParentheticalDetails </Role> |
| | | <ShortName> DIVESTITURES AND ASSETS HELD FOR SALE - Schedule of Assets and Liabilities Classified as Held for Sale (Parenthetical) (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 47 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R48.htm </HtmlFileName> |
| | | <LongName> 100470 - Disclosure - DIVESTITURES AND ASSETS HELD FOR SALE - DSD Snacks Business (Narrative) (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureDIVESTITURESANDASSETSHELDFORSALEDSDSnacksBusinessNarrativeDetails </Role> |
| | | <ShortName> DIVESTITURES AND ASSETS HELD FOR SALE - DSD Snacks Business (Narrative) (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 48 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R49.htm </HtmlFileName> |
| | | <LongName> 100480 - Disclosure - DIVESTITURES AND ASSETS HELD FOR SALE - Other Divestitures (Narrative) (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureDIVESTITURESANDASSETSHELDFORSALEOtherDivestituresNarrativeDetails </Role> |
| | | <ShortName> DIVESTITURES AND ASSETS HELD FOR SALE - Other Divestitures (Narrative) (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 49 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R50.htm </HtmlFileName> |
| | | <LongName> 100490 - Disclosure - DIVESTITURES AND ASSETS HELD FOR SALE - Other Assets Held for Sale (Narrative) (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureDIVESTITURESANDASSETSHELDFORSALEOtherAssetsHeldForSaleNarrativeDetails </Role> |
| | | <ShortName> DIVESTITURES AND ASSETS HELD FOR SALE - Other Assets Held for Sale (Narrative) (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 50 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R51.htm </HtmlFileName> |
| | | <LongName> 100500 - Disclosure - DIVESTITURES AND ASSETS HELD FOR SALE - Schedule of Assets and Classified as Held for Sale (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureDIVESTITURESANDASSETSHELDFORSALEScheduleOfAssetsAndClassifiedAsHeldForSaleDetails </Role> |
| | | <ShortName> DIVESTITURES AND ASSETS HELD FOR SALE - Schedule of Assets and Classified as Held for Sale (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 51 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R52.htm </HtmlFileName> |
| | | <LongName> 100510 - Disclosure - DIVESTITURES AND ASSETS HELD FOR SALE - Schedule of Assets and Classified as Held for Sale (Parenthetical) (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureDIVESTITURESANDASSETSHELDFORSALEScheduleOfAssetsAndClassifiedAsHeldForSaleParentheticalDetails </Role> |
| | | <ShortName> DIVESTITURES AND ASSETS HELD FOR SALE - Schedule of Assets and Classified as Held for Sale (Parenthetical) (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 52 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R53.htm </HtmlFileName> |
| | | <LongName> 100520 - Disclosure - RESTRUCTURING ACTIVITIES - Narrative (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureRESTRUCTURINGACTIVITIESNarrativeDetails </Role> |
| | | <ShortName> RESTRUCTURING ACTIVITIES - Narrative (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 53 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R54.htm </HtmlFileName> |
| | | <LongName> 100530 - Disclosure - RESTRUCTURING ACTIVITIES - Schedule of Pre-Tax Expenses in Association with the Restructuring Plan (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureRESTRUCTURINGACTIVITIESScheduleOfPreTaxExpensesInAssociationWithRestructuringPlanDetails </Role> |
| | | <ShortName> RESTRUCTURING ACTIVITIES - Schedule of Pre-Tax Expenses in Association with the Restructuring Plan (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 54 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R55.htm </HtmlFileName> |
| | | <LongName> 100540 - Disclosure - RESTRUCTURING ACTIVITIES - Schedule of Liabilities Recorded for the Restructuring Plan (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureRESTRUCTURINGACTIVITIESScheduleOfLiabilitiesRecordedForRestructuringPlanDetails </Role> |
| | | <ShortName> RESTRUCTURING ACTIVITIES - Schedule of Liabilities Recorded for the Restructuring Plan (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 55 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R56.htm </HtmlFileName> |
| | | <LongName> 100550 - Disclosure - LONG-TERM DEBT AND REVOLVING CREDIT FACILITY - Narrative (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureLONGTERMDEBTANDREVOLVINGCREDITFACILITYNarrativeDetails </Role> |
| | | <ShortName> LONG-TERM DEBT AND REVOLVING CREDIT FACILITY - Narrative (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 56 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R57.htm </HtmlFileName> |
| | | <LongName> 100560 - Disclosure - LONG-TERM DEBT AND REVOLVING CREDIT FACILITY - Schedule of Net Interest Expense (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureLONGTERMDEBTANDREVOLVINGCREDITFACILITYScheduleOfNetInterestExpenseDetails </Role> |
| | | <ShortName> LONG-TERM DEBT AND REVOLVING CREDIT FACILITY - Schedule of Net Interest Expense (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 57 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R58.htm </HtmlFileName> |
| | | <LongName> 100570 - Disclosure - GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Schedule of Change in Carrying Amount of Goodwill, Excluding Amounts Classified as Held for Sale (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureGOODWILLANDOTHERIDENTIFIABLEINTANGIBLEASSETSScheduleOfChangeInCarryingAmountOfGoodwillExcludingAmountsClassifiedAsHeldForSaleDetails </Role> |
| | | <ShortName> GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Schedule of Change in Carrying Amount of Goodwill, Excluding Amounts Classified as Held for Sale (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 58 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R59.htm </HtmlFileName> |
| | | <LongName> 100580 - Disclosure - GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Schedule of Other Identifiable Intangible Assets, Excluding Amounts Classified as Held for Sale (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureGOODWILLANDOTHERIDENTIFIABLEINTANGIBLEASSETSScheduleOfOtherIdentifiableIntangibleAssetsExcludingAmountsClassifiedAsHeldForSaleDetails </Role> |
| | | <ShortName> GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Schedule of Other Identifiable Intangible Assets, Excluding Amounts Classified as Held for Sale (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 59 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R60.htm </HtmlFileName> |
| | | <LongName> 100590 - Disclosure - GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Narrative (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureGOODWILLANDOTHERIDENTIFIABLEINTANGIBLEASSETSNarrativeDetails </Role> |
| | | <ShortName> GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Narrative (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureGOODWILLANDOTHERIDENTIFIABLEINTANGIBLEASSETSTables </ParentRole> |
| | | <Position> 60 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R61.htm </HtmlFileName> |
| | | <LongName> 100600 - Disclosure - GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Schedule of Estimated Fair Value in Excess of Carrying Value (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureGOODWILLANDOTHERIDENTIFIABLEINTANGIBLEASSETSScheduleOfEstimatedFairValueInExcessOfCarryingValueDetails </Role> |
| | | <ShortName> GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Schedule of Estimated Fair Value in Excess of Carrying Value (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 61 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R62.htm </HtmlFileName> |
| | | <LongName> 100610 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS - Narrative (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureDERIVATIVEFINANCIALINSTRUMENTSNarrativeDetails </Role> |
| | | <ShortName> DERIVATIVE FINANCIAL INSTRUMENTS - Narrative (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 62 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R63.htm </HtmlFileName> |
| | | <LongName> 100620 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS - Schedule of Derivative Assets and Liabilities and Amounts Representing Right to Reclaim or Obligation to Return Cash Collateral (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureDERIVATIVEFINANCIALINSTRUMENTSScheduleOfDerivativeAssetsAndLiabilitiesAndAmountsRepresentingRightToReclaimOrObligationToReturnCashCollateralDetails </Role> |
| | | <ShortName> DERIVATIVE FINANCIAL INSTRUMENTS - Schedule of Derivative Assets and Liabilities and Amounts Representing Right to Reclaim or Obligation to Return Cash Collateral (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 63 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R64.htm </HtmlFileName> |
| | | <LongName> 100630 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS - Schedule of Derivative Assets and Liabilities on a Gross Basis (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureDERIVATIVEFINANCIALINSTRUMENTSScheduleOfDerivativeAssetsAndLiabilitiesOnGrossBasisDetails </Role> |
| | | <ShortName> DERIVATIVE FINANCIAL INSTRUMENTS - Schedule of Derivative Assets and Liabilities on a Gross Basis (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 64 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R65.htm </HtmlFileName> |
| | | <LongName> 100640 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS - Schedule of Location and Amount of Gain (Loss) from Derivatives Not Designated as Hedging Instruments (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureDERIVATIVEFINANCIALINSTRUMENTSScheduleOfLocationAndAmountOfGainLossFromDerivativesNotDesignatedAsHedgingInstrumentsDetails </Role> |
| | | <ShortName> DERIVATIVE FINANCIAL INSTRUMENTS - Schedule of Location and Amount of Gain (Loss) from Derivatives Not Designated as Hedging Instruments (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 65 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R66.htm </HtmlFileName> |
| | | <LongName> 100650 - Disclosure - SHARE-BASED PAYMENTS (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureSHAREBASEDPAYMENTSDetails </Role> |
| | | <ShortName> SHARE-BASED PAYMENTS (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureSHAREBASEDPAYMENTS </ParentRole> |
| | | <Position> 66 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R67.htm </HtmlFileName> |
| | | <LongName> 100660 - Disclosure - EARNINGS PER SHARE - Narrative (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureEARNINGSPERSHARENarrativeDetails </Role> |
| | | <ShortName> EARNINGS PER SHARE - Narrative (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 67 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R68.htm </HtmlFileName> |
| | | <LongName> 100670 - Disclosure - EARNINGS PER SHARE - Reconciliation of Income and Average Share Amounts Used to Compute Basic and Diluted Earnings (Loss) Per Share (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureEARNINGSPERSHAREReconciliationOfIncomeAndAverageShareAmountsUsedToComputeBasicAndDilutedEarningsLossPerShareDetails </Role> |
| | | <ShortName> EARNINGS PER SHARE - Reconciliation of Income and Average Share Amounts Used to Compute Basic and Diluted Earnings (Loss) Per Share (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 68 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R69.htm </HtmlFileName> |
| | | <LongName> 100680 - Disclosure - INVENTORIES (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureINVENTORIESDetails </Role> |
| | | <ShortName> INVENTORIES (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureINVENTORIESTables </ParentRole> |
| | | <Position> 69 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R70.htm </HtmlFileName> |
| | | <LongName> 100690 - Disclosure - INCOME TAXES (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureINCOMETAXESDetails </Role> |
| | | <ShortName> INCOME TAXES (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureINCOMETAXES </ParentRole> |
| | | <Position> 70 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R71.htm </HtmlFileName> |
| | | <LongName> 100700 - Disclosure - LEASES - Narrative (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureLEASESNarrativeDetails </Role> |
| | | <ShortName> LEASES - Narrative (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 71 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R72.htm </HtmlFileName> |
| | | <LongName> 100710 - Disclosure - LEASES - Schedule of Operating and Finance Leases Reported in Balance Sheet (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureLEASESScheduleOfOperatingAndFinanceLeasesReportedInBalanceSheetDetails </Role> |
| | | <ShortName> LEASES - Schedule of Operating and Finance Leases Reported in Balance Sheet (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 72 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R73.htm </HtmlFileName> |
| | | <LongName> 100720 - Disclosure - LEASES - Components of Total Lease Cost (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureLEASESComponentsOfTotalLeaseCostDetails </Role> |
| | | <ShortName> LEASES - Components of Total Lease Cost (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 73 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R74.htm </HtmlFileName> |
| | | <LongName> 100730 - Disclosure - LEASES - Schedule of Weighted-Average Remaining Lease Terms and Weighted-Average Discount Rate for Leases (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureLEASESScheduleOfWeightedAverageRemainingLeaseTermsAndWeightedAverageDiscountRateForLeasesDetails </Role> |
| | | <ShortName> LEASES - Schedule of Weighted-Average Remaining Lease Terms and Weighted-Average Discount Rate for Leases (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 74 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R75.htm </HtmlFileName> |
| | | <LongName> 100740 - Disclosure - LEASES - Schedule of Cash Flows Arising from Lease Transactions (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureLEASESScheduleOfCashFlowsArisingFromLeaseTransactionsDetails </Role> |
| | | <ShortName> LEASES - Schedule of Cash Flows Arising from Lease Transactions (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 75 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R76.htm </HtmlFileName> |
| | | <LongName> 100750 - Disclosure - LEASES - Schedule of Maturities of Lease Liabilities (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureLEASESScheduleOfMaturitiesOfLeaseLiabilitiesDetails </Role> |
| | | <ShortName> LEASES - Schedule of Maturities of Lease Liabilities (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 76 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R77.htm </HtmlFileName> |
| | | <LongName> 100770 - Disclosure - LEASES - Summary of Non-Cancellable Operating Lease Commitments (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureLEASESSummaryOfNonCancellableOperatingLeaseCommitmentsDetails </Role> |
| | | <ShortName> LEASES - Summary of Non-Cancellable Operating Lease Commitments (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 77 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R78.htm </HtmlFileName> |
| | | <LongName> 100780 - Disclosure - CONTINGENCIES (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureCONTINGENCIESDetails </Role> |
| | | <ShortName> CONTINGENCIES (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureCONTINGENCIES </ParentRole> |
| | | <Position> 78 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R79.htm </HtmlFileName> |
| | | <LongName> 100790 - Disclosure - PENSION AND POSTRETIREMENT BENEFITS - Narrative (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosurePENSIONANDPOSTRETIREMENTBENEFITSNarrativeDetails </Role> |
| | | <ShortName> PENSION AND POSTRETIREMENT BENEFITS - Narrative (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 79 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R80.htm </HtmlFileName> |
| | | <LongName> 100800 - Disclosure - PENSION AND POSTRETIREMENT BENEFITS - Components of Pension Benefit and Other Postretirement Benefit Costs (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosurePENSIONANDPOSTRETIREMENTBENEFITSComponentsOfPensionBenefitAndOtherPostretirementBenefitCostsDetails </Role> |
| | | <ShortName> PENSION AND POSTRETIREMENT BENEFITS - Components of Pension Benefit and Other Postretirement Benefit Costs (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 80 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R81.htm </HtmlFileName> |
| | | <LongName> 100810 - Disclosure - STOCKHOLDERS' EQUITY (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureSTOCKHOLDERSEQUITYDetails </Role> |
| | | <ShortName> STOCKHOLDERS' EQUITY (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureSTOCKHOLDERSEQUITYTables </ParentRole> |
| | | <Position> 81 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R82.htm </HtmlFileName> |
| | | <LongName> 100820 - Disclosure - STOCKHOLDERS' EQUITY (Parenthetical) (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureSTOCKHOLDERSEQUITYParentheticalDetails </Role> |
| | | <ShortName> STOCKHOLDERS' EQUITY (Parenthetical) (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureSTOCKHOLDERSEQUITYTables </ParentRole> |
| | | <Position> 82 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R83.htm </HtmlFileName> |
| | | <LongName> 100830 - Disclosure - FAIR VALUE MEASUREMENTS - Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureFAIRVALUEMEASUREMENTSScheduleOfFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetails </Role> |
| | | <ShortName> FAIR VALUE MEASUREMENTS - Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 83 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R84.htm </HtmlFileName> |
| | | <LongName> 100840 - Disclosure - FAIR VALUE MEASUREMENTS - Narrative (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureFAIRVALUEMEASUREMENTSNarrativeDetails </Role> |
| | | <ShortName> FAIR VALUE MEASUREMENTS - Narrative (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 84 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R85.htm </HtmlFileName> |
| | | <LongName> 100850 - Disclosure - BUSINESS SEGMENTS AND RELATED INFORMATION - Narrative (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureBUSINESSSEGMENTSANDRELATEDINFORMATIONNarrativeDetails </Role> |
| | | <ShortName> BUSINESS SEGMENTS AND RELATED INFORMATION - Narrative (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 85 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R86.htm </HtmlFileName> |
| | | <LongName> 100860 - Disclosure - BUSINESS SEGMENTS AND RELATED INFORMATION - Schedule of Segment Operations (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureBUSINESSSEGMENTSANDRELATEDINFORMATIONScheduleOfSegmentOperationsDetails </Role> |
| | | <ShortName> BUSINESS SEGMENTS AND RELATED INFORMATION - Schedule of Segment Operations (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 86 </Position> |
| | | </Report> |
| | <Report instance="cag-10q_20200223.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R87.htm </HtmlFileName> |
| | | <LongName> 100870 - Disclosure - BUSINESS SEGMENTS AND RELATED INFORMATION - Schedule of Net Derivative Gains (Losses) from Economic Hedges of Forecasted Commodity Consumption and Foreign Currency Risk (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.conagrabrands.com/20200223/taxonomy/role/DisclosureBUSINESSSEGMENTSANDRELATEDINFORMATIONScheduleOfNetDerivativeGainsLossesFromEconomicHedgesOfForecastedCommodityConsumptionAndForeignCurrencyRiskDetails </Role> |
| | | <ShortName> BUSINESS SEGMENTS AND RELATED INFORMATION - Schedule of Net Derivative Gains (Losses) from Economic Hedges of Forecasted Commodity Consumption and Foreign Currency Risk (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 87 </Position> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <LongName> All Reports </LongName> |
| | | <ReportType> Book </ReportType> |
| | | <ShortName> All Reports </ShortName> |
| | | </Report> |
| | </MyReports> |
| <InputFiles> |
| | <File doctype="10-Q" original="cag-10q_20200223.htm"> cag-10q_20200223.htm </File> |
| | <File> cag-20200223.xsd </File> |
| | <File> cag-20200223_cal.xml </File> |
| | <File> cag-20200223_def.xml </File> |
| | <File> cag-20200223_lab.xml </File> |
| | <File> cag-20200223_pre.xml </File> |
| | <File> cag-ex311_8.htm </File> |
| | <File> cag-ex312_7.htm </File> |
| | <File> cag-ex32_6.htm </File> |
| | </InputFiles> |
| <SupplementalFiles/> |
| <BaseTaxonomies> |
| | <BaseTaxonomy> http://xbrl.sec.gov/stpr/2018-01-31 </BaseTaxonomy> |
| | <BaseTaxonomy> http://fasb.org/us-gaap/2019-01-31 </BaseTaxonomy> |
| | <BaseTaxonomy> http://xbrl.sec.gov/country/2017-01-31 </BaseTaxonomy> |
| | <BaseTaxonomy> http://fasb.org/srt/2019-01-31 </BaseTaxonomy> |
| | <BaseTaxonomy> http://xbrl.sec.gov/dei/2019-01-31 </BaseTaxonomy> |
| | </BaseTaxonomies> |
| <HasPresentationLinkbase> true </HasPresentationLinkbase> |
| <HasCalculationLinkbase> true </HasCalculationLinkbase> |
| </FilingSummary> |