<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>359</ContextCount>
  <ElementCount>303</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>95</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>5</UnitCount>
  <MyReports>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>995200090 - Document - Document And Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document And Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>995200100 - Statement - Condensed Consolidated Statements of Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/StatementCondensedConsolidatedStatementsOfOperations</Role>
      <ShortName>Condensed Consolidated Statements of Operations</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>995200200 - Statement - Condensed Consolidated Statements of Comprehensive Income (Loss)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/StatementCondensedConsolidatedStatementsOfComprehensiveIncomeLoss</Role>
      <ShortName>Condensed Consolidated Statements of Comprehensive Income (Loss)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>995200300 - Statement - Condensed Consolidated Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/StatementCondensedConsolidatedBalanceSheets</Role>
      <ShortName>Condensed Consolidated Balance Sheets</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>995200305 - Statement - Condensed Consolidated Balance Sheets (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/StatementCondensedConsolidatedBalanceSheetsParentheticals</Role>
      <ShortName>Condensed Consolidated Balance Sheets (Parentheticals)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>995200400 - Statement - Condensed Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/StatementCondensedConsolidatedStatementsOfCashFlows</Role>
      <ShortName>Condensed Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>995210101 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureSummaryOfSignificantAccountingPolicies</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>995210201 - Disclosure - ACQUISITIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureAcquisitions</Role>
      <ShortName>ACQUISITIONS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>995210301 - Disclosure - DIVESTITURES AND ASSETS HELD FOR SALE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureDivestituresAndAssetsHeldForSale</Role>
      <ShortName>DIVESTITURES AND ASSETS HELD FOR SALE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>995210401 - Disclosure - RESTRUCTURING ACTIVITIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureRestructuringActivities</Role>
      <ShortName>RESTRUCTURING ACTIVITIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>995210501 - Disclosure - DEBT AND REVOLVING CREDIT FACILITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureDebtAndRevolvingCreditFacility</Role>
      <ShortName>DEBT AND REVOLVING CREDIT FACILITY</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>995210601 - Disclosure - FINANCING ARRANGEMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureFinancingArrangements</Role>
      <ShortName>FINANCING ARRANGEMENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>995210701 - Disclosure - GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureGoodwillAndOtherIdentifiableIntangibleAssets</Role>
      <ShortName>GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>995210801 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureDerivativeFinancialInstruments</Role>
      <ShortName>DERIVATIVE FINANCIAL INSTRUMENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>995210901 - Disclosure - SHARE-BASED PAYMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureShareBasedPayments</Role>
      <ShortName>SHARE-BASED PAYMENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>995211001 - Disclosure - EARNINGS (LOSS) PER SHARE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureEarningsLossPerShare</Role>
      <ShortName>EARNINGS (LOSS) PER SHARE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>995211101 - Disclosure - INVENTORIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureInventories</Role>
      <ShortName>INVENTORIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>995211201 - Disclosure - INCOME TAXES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureIncomeTaxes</Role>
      <ShortName>INCOME TAXES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>995211301 - Disclosure - CONTINGENCIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureContingencies</Role>
      <ShortName>CONTINGENCIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>995211401 - Disclosure - PENSION AND POSTRETIREMENT BENEFITS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosurePensionAndPostretirementBenefits</Role>
      <ShortName>PENSION AND POSTRETIREMENT BENEFITS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>995211501 - Disclosure - STOCKHOLDERS' EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureStockholdersEquity</Role>
      <ShortName>STOCKHOLDERS' EQUITY</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>995211601 - Disclosure - FAIR VALUE MEASUREMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureFairValueMeasurements</Role>
      <ShortName>FAIR VALUE MEASUREMENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>995211701 - Disclosure - BUSINESS SEGMENTS AND RELATED INFORMATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureBusinessSegmentsAndRelatedInformation</Role>
      <ShortName>BUSINESS SEGMENTS AND RELATED INFORMATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>995410 - Disclosure - Pay vs Performance Disclosure</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/PvpDisclosure</Role>
      <ShortName>Pay vs Performance Disclosure</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>995445 - Disclosure - Insider Trading Arrangements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements</Role>
      <ShortName>Insider Trading Arrangements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>99920102 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>99930303 - Disclosure - DIVESTITURES AND ASSETS HELD FOR SALE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureDivestituresAndAssetsHeldForSaleTables</Role>
      <ShortName>DIVESTITURES AND ASSETS HELD FOR SALE (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureDivestituresAndAssetsHeldForSale</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>99930403 - Disclosure - RESTRUCTURING ACTIVITIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureRestructuringActivitiesTables</Role>
      <ShortName>RESTRUCTURING ACTIVITIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureRestructuringActivities</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>99930503 - Disclosure - DEBT AND REVOLVING CREDIT FACILITY (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureDebtAndRevolvingCreditFacilityTables</Role>
      <ShortName>DEBT AND REVOLVING CREDIT FACILITY (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureDebtAndRevolvingCreditFacility</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>99930703 - Disclosure - GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureGoodwillAndOtherIdentifiableIntangibleAssetsTables</Role>
      <ShortName>GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureGoodwillAndOtherIdentifiableIntangibleAssets</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>99930803 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureDerivativeFinancialInstrumentsTables</Role>
      <ShortName>DERIVATIVE FINANCIAL INSTRUMENTS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureDerivativeFinancialInstruments</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>99931003 - Disclosure - EARNINGS (LOSS) PER SHARE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureEarningsLossPerShareTables</Role>
      <ShortName>EARNINGS (LOSS) PER SHARE (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureEarningsLossPerShare</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>99931103 - Disclosure - INVENTORIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureInventoriesTables</Role>
      <ShortName>INVENTORIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureInventories</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>99931403 - Disclosure - PENSION AND POSTRETIREMENT BENEFITS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosurePensionAndPostretirementBenefitsTables</Role>
      <ShortName>PENSION AND POSTRETIREMENT BENEFITS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosurePensionAndPostretirementBenefits</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>99931503 - Disclosure - STOCKHOLDERS' EQUITY (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureStockholdersEquityTables</Role>
      <ShortName>STOCKHOLDERS' EQUITY (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureStockholdersEquity</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>99931603 - Disclosure - FAIR VALUE MEASUREMENTS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureFairValueMeasurementsTables</Role>
      <ShortName>FAIR VALUE MEASUREMENTS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureFairValueMeasurements</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>99931703 - Disclosure - BUSINESS SEGMENTS AND RELATED INFORMATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureBusinessSegmentsAndRelatedInformationTables</Role>
      <ShortName>BUSINESS SEGMENTS AND RELATED INFORMATION (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureBusinessSegmentsAndRelatedInformation</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>99940201 - Disclosure - ACQUISITIONS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureAcquisitionsDetails</Role>
      <ShortName>ACQUISITIONS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureAcquisitions</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>99940301 - Disclosure - DIVESTITURES AND ASSETS HELD FOR SALE (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureDivestituresAndAssetsHeldForSaleDetails</Role>
      <ShortName>DIVESTITURES AND ASSETS HELD FOR SALE (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureDivestituresAndAssetsHeldForSaleTables</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>99940302 - 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/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>40</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>99940401 - Disclosure - RESTRUCTURING ACTIVITIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureRestructuringActivitiesDetails</Role>
      <ShortName>RESTRUCTURING ACTIVITIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureRestructuringActivitiesTables</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>99940402 - Disclosure - RESTRUCTURING ACTIVITIES - Schedule of restructuring plan expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureRestructuringActivitiesScheduleOfRestructuringPlanExpensesDetails</Role>
      <ShortName>RESTRUCTURING ACTIVITIES - Schedule of restructuring plan expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>99940501 - Disclosure - DEBT AND REVOLVING CREDIT FACILITY (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureDebtAndRevolvingCreditFacilityDetails</Role>
      <ShortName>DEBT AND REVOLVING CREDIT FACILITY (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureDebtAndRevolvingCreditFacilityTables</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>99940502 - Disclosure - DEBT AND REVOLVING CREDIT FACILITY - Schedule of Net Interest Expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureDebtAndRevolvingCreditFacilityScheduleOfNetInterestExpenseDetails</Role>
      <ShortName>DEBT AND REVOLVING CREDIT FACILITY - Schedule of Net Interest Expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>99940601 - Disclosure - FINANCING ARRANGEMENTS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureFinancingArrangementsDetails</Role>
      <ShortName>FINANCING ARRANGEMENTS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureFinancingArrangements</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>99940701 - Disclosure - GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Schedule of change in carrying amount of goodwill (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureGoodwillAndOtherIdentifiableIntangibleAssetsScheduleOfChangeInCarryingAmountOfGoodwillDetails</Role>
      <ShortName>GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Schedule of change in carrying amount of goodwill (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>99940702 - Disclosure - GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Schedule of other identifiable intangible assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureGoodwillAndOtherIdentifiableIntangibleAssetsScheduleOfOtherIdentifiableIntangibleAssetsDetails</Role>
      <ShortName>GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Schedule of other identifiable intangible assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>99940703 - Disclosure - GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureGoodwillAndOtherIdentifiableIntangibleAssetsNarrativeDetails</Role>
      <ShortName>GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureGoodwillAndOtherIdentifiableIntangibleAssetsTables</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>99940801 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS - Net derivative gains (losses) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureDerivativeFinancialInstrumentsNetDerivativeGainsLossesDetails</Role>
      <ShortName>DERIVATIVE FINANCIAL INSTRUMENTS - Net derivative gains (losses) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>99940802 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS - Schedule of Amount of Gain (Loss) from Derivatives Not Designated as Hedging Instruments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureDerivativeFinancialInstrumentsScheduleOfAmountOfGainLossFromDerivativesNotDesignatedAsHedgingInstrumentsDetails</Role>
      <ShortName>DERIVATIVE FINANCIAL INSTRUMENTS - Schedule of Amount of Gain (Loss) from Derivatives Not Designated as Hedging Instruments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>99940803 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS - Narratives (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureDerivativeFinancialInstrumentsNarrativesDetails</Role>
      <ShortName>DERIVATIVE FINANCIAL INSTRUMENTS - Narratives (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>99940901 - Disclosure - SHARE-BASED PAYMENTS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureShareBasedPaymentsDetails</Role>
      <ShortName>SHARE-BASED PAYMENTS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureShareBasedPayments</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>99941001 - Disclosure - EARNINGS (LOSS) PER SHARE (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureEarningsLossPerShareDetails</Role>
      <ShortName>EARNINGS (LOSS) PER SHARE (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureEarningsLossPerShareTables</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>99941002 - Disclosure - EARNINGS (LOSS) PER SHARE - Schedule of basic and diluted earnings (loss) per share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureEarningsLossPerShareScheduleOfBasicAndDilutedEarningsLossPerShareDetails</Role>
      <ShortName>EARNINGS (LOSS) PER SHARE - Schedule of basic and diluted earnings (loss) per share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureEarningsLossPerShareTables</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>99941101 - Disclosure - INVENTORIES - Inventory by Major Class (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureInventoriesInventoryByMajorClassDetails</Role>
      <ShortName>INVENTORIES - Inventory by Major Class (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>99941201 - Disclosure - INCOME TAXES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureIncomeTaxesDetails</Role>
      <ShortName>INCOME TAXES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureIncomeTaxes</ParentRole>
      <Position>56</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>99941301 - Disclosure - CONTINGENCIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureContingenciesDetails</Role>
      <ShortName>CONTINGENCIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureContingencies</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>99941401 - Disclosure - PENSION AND POSTRETIREMENT BENEFITS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosurePensionAndPostretirementBenefitsDetails</Role>
      <ShortName>PENSION AND POSTRETIREMENT BENEFITS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosurePensionAndPostretirementBenefitsTables</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>99941402 - Disclosure - PENSION AND POSTRETIREMENT BENEFITS - Components of pension and postretirement plan costs (benefits) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosurePensionAndPostretirementBenefitsComponentsOfPensionAndPostretirementPlanCostsBenefitsDetails</Role>
      <ShortName>PENSION AND POSTRETIREMENT BENEFITS - Components of pension and postretirement plan costs (benefits) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>99941501 - Disclosure - STOCKHOLDERS' EQUITY - Reconciliation of Stockholders' Equity Accounts (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureStockholdersEquityReconciliationOfStockholdersEquityAccountsDetailss</Role>
      <ShortName>STOCKHOLDERS' EQUITY - Reconciliation of Stockholders' Equity Accounts (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>99941502 - Disclosure - STOCKHOLDERS' EQUITY - Reconciliation of Stockholders' Equity Accounts (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureStockholdersEquityReconciliationOfStockholdersEquityAccountsDetails</Role>
      <ShortName>STOCKHOLDERS' EQUITY - Reconciliation of Stockholders' Equity Accounts (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>99941503 - Disclosure - STOCKHOLDERS' EQUITY - Other Comprehensive Income (Loss) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureStockholdersEquityOtherComprehensiveIncomeLossDetails</Role>
      <ShortName>STOCKHOLDERS' EQUITY - Other Comprehensive Income (Loss) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>99941504 - Disclosure - STOCKHOLDERS' EQUITY - Reclassification from Other Comprehensive Income (Loss) to Income (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureStockholdersEquityReclassificationFromOtherComprehensiveIncomeLossToIncomeDetails</Role>
      <ShortName>STOCKHOLDERS' EQUITY - Reclassification from Other Comprehensive Income (Loss) to Income (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>99941601 - Disclosure - FAIR VALUE MEASUREMENTS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureFairValueMeasurementsDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENTS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureFairValueMeasurementsTables</ParentRole>
      <Position>64</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>99941602 - Disclosure - FAIR VALUE MEASUREMENTS - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureFairValueMeasurementsFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENTS - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>99941701 - Disclosure - BUSINESS SEGMENTS AND RELATED INFORMATION (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureBusinessSegmentsAndRelatedInformationDetails</Role>
      <ShortName>BUSINESS SEGMENTS AND RELATED INFORMATION (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.conagrabrands.com/role/DisclosureBusinessSegmentsAndRelatedInformationTables</ParentRole>
      <Position>66</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>99941702 - Disclosure - BUSINESS SEGMENTS AND RELATED INFORMATION - Segment Reporting Information by Segment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureBusinessSegmentsAndRelatedInformationSegmentReportingInformationBySegmentDetails</Role>
      <ShortName>BUSINESS SEGMENTS AND RELATED INFORMATION - Segment Reporting Information by Segment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="tmb-20260222x10q.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>99941703 - Disclosure - BUSINESS SEGMENTS AND RELATED INFORMATION - Assets by Segment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.conagrabrands.com/role/DisclosureBusinessSegmentsAndRelatedInformationAssetsBySegmentDetails</Role>
      <ShortName>BUSINESS SEGMENTS AND RELATED INFORMATION - Assets by Segment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>tmb-20260222.xsd</File>
    <File>tmb-20260222_cal.xml</File>
    <File>tmb-20260222_def.xml</File>
    <File>tmb-20260222_lab.xml</File>
    <File>tmb-20260222_pre.xml</File>
    <File doctype="10-Q" isDefinitelyFs="true" isUsgaap="true" original="tmb-20260222x10q.htm">tmb-20260222x10q.htm</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="1097">http://fasb.org/us-gaap/2024</BaseTaxonomy>
    <BaseTaxonomy items="29">http://xbrl.sec.gov/dei/2024</BaseTaxonomy>
    <BaseTaxonomy items="4">http://xbrl.sec.gov/ecd/2024</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
