<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>118</ContextCount>
  <ElementCount>241</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>53</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>6</UnitCount>
  <MyReports>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0000001 - Document - Cover Page</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/CoverPage</Role>
      <ShortName>Cover Page</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>9952151 - Statement - CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/CONSOLIDATEDBALANCESHEETS</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>9952152 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/CONSOLIDATEDBALANCESHEETSParenthetical</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>9952153 - Statement - CONSOLIDATED STATEMENTS OF INCOME (LOSS) (UNAUDITED)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/CONSOLIDATEDSTATEMENTSOFINCOMELOSSUNAUDITED</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF INCOME (LOSS) (UNAUDITED)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>9952154 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (UNAUDITED)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMELOSSUNAUDITED</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (UNAUDITED)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>9952155 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' DEFICIT (UNAUDITED)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINSTOCKHOLDERSDEFICITUNAUDITED</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' DEFICIT (UNAUDITED)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>9952156 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUNAUDITED</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>9952157 - Disclosure - BASIS OF PRESENTATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/BASISOFPRESENTATION</Role>
      <ShortName>BASIS OF PRESENTATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>9952158 - Disclosure - DISPOSITIONS AND DISCONTINUED OPERATIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/DISPOSITIONSANDDISCONTINUEDOPERATIONS</Role>
      <ShortName>DISPOSITIONS AND DISCONTINUED OPERATIONS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>9952159 - Disclosure - SEGMENT DATA</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/SEGMENTDATA</Role>
      <ShortName>SEGMENT DATA</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>9952160 - Disclosure - REVENUE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/REVENUE</Role>
      <ShortName>REVENUE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>9952161 - Disclosure - LONG-TERM DEBT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/LONGTERMDEBT</Role>
      <ShortName>LONG-TERM DEBT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>9952162 - Disclosure - COMMITMENTS AND CONTINGENCIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/COMMITMENTSANDCONTINGENCIES</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>9952163 - Disclosure - INCOME TAXES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/INCOMETAXES</Role>
      <ShortName>INCOME TAXES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>9952164 - Disclosure - PROPERTY, PLANT AND EQUIPMENT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/PROPERTYPLANTANDEQUIPMENT</Role>
      <ShortName>PROPERTY, PLANT AND EQUIPMENT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>9952165 - Disclosure - INTANGIBLE ASSETS AND GOODWILL</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/INTANGIBLEASSETSANDGOODWILL</Role>
      <ShortName>INTANGIBLE ASSETS AND GOODWILL</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>9952166 - Disclosure - STOCKHOLDERS??? DEFICIT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/STOCKHOLDERSDEFICIT</Role>
      <ShortName>STOCKHOLDERS??? DEFICIT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>9952167 - Disclosure - OTHER INFORMATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/OTHERINFORMATION</Role>
      <ShortName>OTHER INFORMATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.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>19</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>9955511 - Disclosure - BASIS OF PRESENTATION (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/BASISOFPRESENTATIONPolicies</Role>
      <ShortName>BASIS OF PRESENTATION (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>9955512 - Disclosure - DISPOSITIONS AND DISCONTINUED OPERATIONS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/DISPOSITIONSANDDISCONTINUEDOPERATIONSTables</Role>
      <ShortName>DISPOSITIONS AND DISCONTINUED OPERATIONS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.clearchanneloutdoor.com/role/DISPOSITIONSANDDISCONTINUEDOPERATIONS</ParentRole>
      <Position>21</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>9955513 - Disclosure - SEGMENT DATA (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/SEGMENTDATATables</Role>
      <ShortName>SEGMENT DATA (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.clearchanneloutdoor.com/role/SEGMENTDATA</ParentRole>
      <Position>22</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>9955514 - Disclosure - REVENUE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/REVENUETables</Role>
      <ShortName>REVENUE (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.clearchanneloutdoor.com/role/REVENUE</ParentRole>
      <Position>23</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>9955515 - Disclosure - LONG-TERM DEBT (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/LONGTERMDEBTTables</Role>
      <ShortName>LONG-TERM DEBT (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.clearchanneloutdoor.com/role/LONGTERMDEBT</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>9955516 - Disclosure - INCOME TAXES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/INCOMETAXESTables</Role>
      <ShortName>INCOME TAXES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.clearchanneloutdoor.com/role/INCOMETAXES</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>9955517 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/PROPERTYPLANTANDEQUIPMENTTables</Role>
      <ShortName>PROPERTY, PLANT AND EQUIPMENT (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.clearchanneloutdoor.com/role/PROPERTYPLANTANDEQUIPMENT</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>9955518 - Disclosure - INTANGIBLE ASSETS AND GOODWILL (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/INTANGIBLEASSETSANDGOODWILLTables</Role>
      <ShortName>INTANGIBLE ASSETS AND GOODWILL (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.clearchanneloutdoor.com/role/INTANGIBLEASSETSANDGOODWILL</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>9955519 - Disclosure - STOCKHOLDERS??? DEFICIT (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/STOCKHOLDERSDEFICITTables</Role>
      <ShortName>STOCKHOLDERS??? DEFICIT (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.clearchanneloutdoor.com/role/STOCKHOLDERSDEFICIT</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>9955520 - Disclosure - OTHER INFORMATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/OTHERINFORMATIONTables</Role>
      <ShortName>OTHER INFORMATION (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.clearchanneloutdoor.com/role/OTHERINFORMATION</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>9955521 - Disclosure - BASIS OF PRESENTATION (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/BASISOFPRESENTATIONDetails</Role>
      <ShortName>BASIS OF PRESENTATION (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.clearchanneloutdoor.com/role/BASISOFPRESENTATIONPolicies</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>9955522 - Disclosure - DISPOSITIONS AND DISCONTINUED OPERATIONS - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/DISPOSITIONSANDDISCONTINUEDOPERATIONSNarrativeDetails</Role>
      <ShortName>DISPOSITIONS AND DISCONTINUED OPERATIONS - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>9955523 - Disclosure - DISPOSITIONS AND DISCONTINUED OPERATIONS - Schedule of Major Classes of Assets and Liabilities Reflected in Discontinued Operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/DISPOSITIONSANDDISCONTINUEDOPERATIONSScheduleofMajorClassesofAssetsandLiabilitiesReflectedinDiscontinuedOperationsDetails</Role>
      <ShortName>DISPOSITIONS AND DISCONTINUED OPERATIONS - Schedule of Major Classes of Assets and Liabilities Reflected in Discontinued Operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>32</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>9955524 - Disclosure - DISPOSITIONS AND DISCONTINUED OPERATIONS - Letters of Credit, Surety Bonds and Guarantees (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/DISPOSITIONSANDDISCONTINUEDOPERATIONSLettersofCreditSuretyBondsandGuaranteesDetails</Role>
      <ShortName>DISPOSITIONS AND DISCONTINUED OPERATIONS - Letters of Credit, Surety Bonds and Guarantees (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>33</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>9955525 - Disclosure - DISPOSITIONS AND DISCONTINUED OPERATIONS - Schedule of Income (Loss) from Discontinued Operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/DISPOSITIONSANDDISCONTINUEDOPERATIONSScheduleofIncomeLossfromDiscontinuedOperationsDetails</Role>
      <ShortName>DISPOSITIONS AND DISCONTINUED OPERATIONS - Schedule of Income (Loss) from Discontinued Operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>34</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>9955526 - Disclosure - DISPOSITIONS AND DISCONTINUED OPERATIONS - Schedule of Capital Expenditures of Discontinued Operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/DISPOSITIONSANDDISCONTINUEDOPERATIONSScheduleofCapitalExpendituresofDiscontinuedOperationsDetails</Role>
      <ShortName>DISPOSITIONS AND DISCONTINUED OPERATIONS - Schedule of Capital Expenditures of Discontinued Operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>35</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>9955527 - Disclosure - SEGMENT DATA - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/SEGMENTDATANarrativeDetails</Role>
      <ShortName>SEGMENT DATA - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>9955528 - Disclosure - SEGMENT DATA - Schedule of Reportable Segment Results (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/SEGMENTDATAScheduleofReportableSegmentResultsDetails</Role>
      <ShortName>SEGMENT DATA - Schedule of Reportable Segment Results (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>9955529 - Disclosure - REVENUE (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/REVENUEDetails</Role>
      <ShortName>REVENUE (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.clearchanneloutdoor.com/role/REVENUETables</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>9955530 - Disclosure - LONG-TERM DEBT - Schedule of Long-Term Debt Outstanding (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/LONGTERMDEBTScheduleofLongTermDebtOutstandingDetails</Role>
      <ShortName>LONG-TERM DEBT - Schedule of Long-Term Debt Outstanding (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>9955531 - Disclosure - LONG-TERM DEBT - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/LONGTERMDEBTNarrativeDetails</Role>
      <ShortName>LONG-TERM DEBT - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>40</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>9955532 - Disclosure - INCOME TAXES - Schedule of Income Tax Benefit Attributable To Continuing Operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/INCOMETAXESScheduleofIncomeTaxBenefitAttributableToContinuingOperationsDetails</Role>
      <ShortName>INCOME TAXES - Schedule of Income Tax Benefit Attributable To Continuing Operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>9955533 - Disclosure - INCOME TAXES - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/INCOMETAXESNarrativeDetails</Role>
      <ShortName>INCOME TAXES - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>9955534 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/PROPERTYPLANTANDEQUIPMENTDetails</Role>
      <ShortName>PROPERTY, PLANT AND EQUIPMENT (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.clearchanneloutdoor.com/role/PROPERTYPLANTANDEQUIPMENTTables</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>9955535 - Disclosure - INTANGIBLE ASSETS AND GOODWILL - Schedule of Major Class of Intangible Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/INTANGIBLEASSETSANDGOODWILLScheduleofMajorClassofIntangibleAssetsDetails</Role>
      <ShortName>INTANGIBLE ASSETS AND GOODWILL - Schedule of Major Class of Intangible Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>9955536 - Disclosure - INTANGIBLE ASSETS AND GOODWILL - Schedule of Changes in the Goodwill Balance (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/INTANGIBLEASSETSANDGOODWILLScheduleofChangesintheGoodwillBalanceDetails</Role>
      <ShortName>INTANGIBLE ASSETS AND GOODWILL - Schedule of Changes in the Goodwill Balance (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>9955537 - Disclosure - STOCKHOLDERS??? DEFICIT - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/STOCKHOLDERSDEFICITNarrativeDetails</Role>
      <ShortName>STOCKHOLDERS??? DEFICIT - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>9955538 - Disclosure - STOCKHOLDERS??? DEFICIT - Schedule of Net Loss Per Share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/STOCKHOLDERSDEFICITScheduleofNetLossPerShareDetails</Role>
      <ShortName>STOCKHOLDERS??? DEFICIT - Schedule of Net Loss Per Share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>9955539 - Disclosure - OTHER INFORMATION - Schedule of Reconciles Cash and Cash Equivalents (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/OTHERINFORMATIONScheduleofReconcilesCashandCashEquivalentsDetails</Role>
      <ShortName>OTHER INFORMATION - Schedule of Reconciles Cash and Cash Equivalents (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>9955540 - Disclosure - OTHER INFORMATION - Schedule of Accounts Receivable (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/OTHERINFORMATIONScheduleofAccountsReceivableDetails</Role>
      <ShortName>OTHER INFORMATION - Schedule of Accounts Receivable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>9955541 - Disclosure - OTHER INFORMATION - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/OTHERINFORMATIONNarrativeDetails</Role>
      <ShortName>OTHER INFORMATION - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="cco-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>9955542 - Disclosure - OTHER INFORMATION - Schedule of Accrued Expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.clearchanneloutdoor.com/role/OTHERINFORMATIONScheduleofAccruedExpensesDetails</Role>
      <ShortName>OTHER INFORMATION - Schedule of Accrued Expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</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" isDefinitelyFs="true" isUsgaap="true" original="cco-20260331.htm">cco-20260331.htm</File>
    <File>cco-20260331.xsd</File>
    <File>cco-20260331_cal.xml</File>
    <File>cco-20260331_def.xml</File>
    <File>cco-20260331_lab.xml</File>
    <File>cco-20260331_pre.xml</File>
  </InputFiles>
  <SupplementalFiles>
    <File>cco-20260331_g1.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="514">http://fasb.org/us-gaap/2025</BaseTaxonomy>
    <BaseTaxonomy items="30">http://xbrl.sec.gov/dei/2025</BaseTaxonomy>
    <BaseTaxonomy items="4">http://xbrl.sec.gov/ecd/2025</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
