3.26.1 html 521 411 1 false 123 0 false 15 false false R1.htm 0000001 - Document - Cover Page Sheet http://www.cboe.com/role/CoverPage Cover Page Cover 1 false false R2.htm 9952151 - Statement - Condensed Consolidated Balance Sheets (unaudited) Sheet http://www.cboe.com/role/CondensedConsolidatedBalanceSheetsunaudited Condensed Consolidated Balance Sheets (unaudited) Statements 2 false false R3.htm 9952152 - Statement - Condensed Consolidated Balance Sheets (unaudited) (Parenthetical) Sheet http://www.cboe.com/role/CondensedConsolidatedBalanceSheetsunauditedParenthetical Condensed Consolidated Balance Sheets (unaudited) (Parenthetical) Statements 3 false false R4.htm 9952153 - Statement - Condensed Consolidated Statements of Income (unaudited) Sheet http://www.cboe.com/role/CondensedConsolidatedStatementsofIncomeunaudited Condensed Consolidated Statements of Income (unaudited) Statements 4 false false R5.htm 9952154 - Statement - Condensed Consolidated Statements of Comprehensive Income (unaudited) Sheet http://www.cboe.com/role/CondensedConsolidatedStatementsofComprehensiveIncomeunaudited Condensed Consolidated Statements of Comprehensive Income (unaudited) Statements 5 false false R6.htm 9952155 - Statement - Condensed Consolidated Statements of Changes in Stockholders' Equity (unaudited) Sheet http://www.cboe.com/role/CondensedConsolidatedStatementsofChangesinStockholdersEquityunaudited Condensed Consolidated Statements of Changes in Stockholders' Equity (unaudited) Statements 6 false false R7.htm 9952156 - Statement - Condensed Consolidated Statements of Changes in Stockholders' Equity (unaudited) (Parenthetical) Sheet http://www.cboe.com/role/CondensedConsolidatedStatementsofChangesinStockholdersEquityunauditedParenthetical Condensed Consolidated Statements of Changes in Stockholders' Equity (unaudited) (Parenthetical) Statements 7 false false R8.htm 9952157 - Statement - Condensed Consolidated Statements of Cash Flows (unaudited) Sheet http://www.cboe.com/role/CondensedConsolidatedStatementsofCashFlowsunaudited Condensed Consolidated Statements of Cash Flows (unaudited) Statements 8 false false R9.htm 9952158 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION Sheet http://www.cboe.com/role/ORGANIZATIONANDBASISOFPRESENTATION ORGANIZATION AND BASIS OF PRESENTATION Notes 9 false false R10.htm 9952159 - Disclosure - REVENUE RECOGNITION Sheet http://www.cboe.com/role/REVENUERECOGNITION REVENUE RECOGNITION Notes 10 false false R11.htm 9952160 - Disclosure - ACQUISITIONS Sheet http://www.cboe.com/role/ACQUISITIONS ACQUISITIONS Notes 11 false false R12.htm 9952161 - Disclosure - INVESTMENTS Sheet http://www.cboe.com/role/INVESTMENTS INVESTMENTS Notes 12 false false R13.htm 9952162 - Disclosure - PROPERTY AND EQUIPMENT, NET Sheet http://www.cboe.com/role/PROPERTYANDEQUIPMENTNET PROPERTY AND EQUIPMENT, NET Notes 13 false false R14.htm 9952163 - Disclosure - CREDIT LOSSES Sheet http://www.cboe.com/role/CREDITLOSSES CREDIT LOSSES Notes 14 false false R15.htm 9952164 - Disclosure - OTHER ASSETS, NET Sheet http://www.cboe.com/role/OTHERASSETSNET OTHER ASSETS, NET Notes 15 false false R16.htm 9952165 - Disclosure - GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD Sheet http://www.cboe.com/role/GOODWILLINTANGIBLEASSETSNETANDDIGITALASSETSHELD GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD Notes 16 false false R17.htm 9952166 - Disclosure - ACCOUNTS PAYABLE AND ACCRUED LIABILITIES Sheet http://www.cboe.com/role/ACCOUNTSPAYABLEANDACCRUEDLIABILITIES ACCOUNTS PAYABLE AND ACCRUED LIABILITIES Notes 17 false false R18.htm 9952167 - Disclosure - DEBT Sheet http://www.cboe.com/role/DEBT DEBT Notes 18 false false R19.htm 9952168 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME, NET Sheet http://www.cboe.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMENET ACCUMULATED OTHER COMPREHENSIVE INCOME, NET Notes 19 false false R20.htm 9952169 - Disclosure - CLEARING OPERATIONS Sheet http://www.cboe.com/role/CLEARINGOPERATIONS CLEARING OPERATIONS Notes 20 false false R21.htm 9952170 - Disclosure - FAIR VALUE MEASUREMENT Sheet http://www.cboe.com/role/FAIRVALUEMEASUREMENT FAIR VALUE MEASUREMENT Notes 21 false false R22.htm 9952171 - Disclosure - SEGMENT REPORTING Sheet http://www.cboe.com/role/SEGMENTREPORTING SEGMENT REPORTING Notes 22 false false R23.htm 9952172 - Disclosure - EMPLOYEE BENEFIT PLANS Sheet http://www.cboe.com/role/EMPLOYEEBENEFITPLANS EMPLOYEE BENEFIT PLANS Notes 23 false false R24.htm 9952173 - Disclosure - REGULATORY CAPITAL Sheet http://www.cboe.com/role/REGULATORYCAPITAL REGULATORY CAPITAL Notes 24 false false R25.htm 9952174 - Disclosure - STOCK-BASED COMPENSATION Sheet http://www.cboe.com/role/STOCKBASEDCOMPENSATION STOCK-BASED COMPENSATION Notes 25 false false R26.htm 9952175 - Disclosure - EQUITY Sheet http://www.cboe.com/role/EQUITY EQUITY Notes 26 false false R27.htm 9952176 - Disclosure - INCOME TAXES Sheet http://www.cboe.com/role/INCOMETAXES INCOME TAXES Notes 27 false false R28.htm 9952177 - Disclosure - EARNINGS PER SHARE Sheet http://www.cboe.com/role/EARNINGSPERSHARE EARNINGS PER SHARE Notes 28 false false R29.htm 9952178 - Disclosure - COMMITMENTS, CONTINGENCIES, AND GUARANTEES Sheet http://www.cboe.com/role/COMMITMENTSCONTINGENCIESANDGUARANTEES COMMITMENTS, CONTINGENCIES, AND GUARANTEES Notes 29 false false R30.htm 9952179 - Disclosure - LEASES Sheet http://www.cboe.com/role/LEASES LEASES Notes 30 false false R31.htm 9952180 - Disclosure - SUBSEQUENT EVENTS Sheet http://www.cboe.com/role/SUBSEQUENTEVENTS SUBSEQUENT EVENTS Notes 31 false false R32.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 32 false false R33.htm 9955511 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION (Policies) Sheet http://www.cboe.com/role/ORGANIZATIONANDBASISOFPRESENTATIONPolicies ORGANIZATION AND BASIS OF PRESENTATION (Policies) Policies 33 false false R34.htm 9955512 - Disclosure - REVENUE RECOGNITION (Tables) Sheet http://www.cboe.com/role/REVENUERECOGNITIONTables REVENUE RECOGNITION (Tables) Tables http://www.cboe.com/role/REVENUERECOGNITION 34 false false R35.htm 9955513 - Disclosure - INVESTMENTS (Tables) Sheet http://www.cboe.com/role/INVESTMENTSTables INVESTMENTS (Tables) Tables http://www.cboe.com/role/INVESTMENTS 35 false false R36.htm 9955514 - Disclosure - PROPERTY AND EQUIPMENT, NET (Tables) Sheet http://www.cboe.com/role/PROPERTYANDEQUIPMENTNETTables PROPERTY AND EQUIPMENT, NET (Tables) Tables http://www.cboe.com/role/PROPERTYANDEQUIPMENTNET 36 false false R37.htm 9955515 - Disclosure - CREDIT LOSSES (Tables) Sheet http://www.cboe.com/role/CREDITLOSSESTables CREDIT LOSSES (Tables) Tables http://www.cboe.com/role/CREDITLOSSES 37 false false R38.htm 9955516 - Disclosure - OTHER ASSETS, NET (Tables) Sheet http://www.cboe.com/role/OTHERASSETSNETTables OTHER ASSETS, NET (Tables) Tables http://www.cboe.com/role/OTHERASSETSNET 38 false false R39.htm 9955517 - Disclosure - GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD (Tables) Sheet http://www.cboe.com/role/GOODWILLINTANGIBLEASSETSNETANDDIGITALASSETSHELDTables GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD (Tables) Tables http://www.cboe.com/role/GOODWILLINTANGIBLEASSETSNETANDDIGITALASSETSHELD 39 false false R40.htm 9955518 - Disclosure - ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Tables) Sheet http://www.cboe.com/role/ACCOUNTSPAYABLEANDACCRUEDLIABILITIESTables ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Tables) Tables http://www.cboe.com/role/ACCOUNTSPAYABLEANDACCRUEDLIABILITIES 40 false false R41.htm 9955519 - Disclosure - DEBT (Tables) Sheet http://www.cboe.com/role/DEBTTables DEBT (Tables) Tables http://www.cboe.com/role/DEBT 41 false false R42.htm 9955520 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME, NET (Tables) Sheet http://www.cboe.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMENETTables ACCUMULATED OTHER COMPREHENSIVE INCOME, NET (Tables) Tables http://www.cboe.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMENET 42 false false R43.htm 9955521 - Disclosure - CLEARING OPERATION (Tables) Sheet http://www.cboe.com/role/CLEARINGOPERATIONTables CLEARING OPERATION (Tables) Tables http://www.cboe.com/role/CLEARINGOPERATIONS 43 false false R44.htm 9955522 - Disclosure - FAIR VALUE MEASUREMENT (Tables) Sheet http://www.cboe.com/role/FAIRVALUEMEASUREMENTTables FAIR VALUE MEASUREMENT (Tables) Tables http://www.cboe.com/role/FAIRVALUEMEASUREMENT 44 false false R45.htm 9955523 - Disclosure - SEGMENT REPORTING (Tables) Sheet http://www.cboe.com/role/SEGMENTREPORTINGTables SEGMENT REPORTING (Tables) Tables http://www.cboe.com/role/SEGMENTREPORTING 45 false false R46.htm 9955524 - Disclosure - REGULATORY CAPITAL (Tables) Sheet http://www.cboe.com/role/REGULATORYCAPITALTables REGULATORY CAPITAL (Tables) Tables http://www.cboe.com/role/REGULATORYCAPITAL 46 false false R47.htm 9955525 - Disclosure - STOCK-BASED COMPENSATION (Tables) Sheet http://www.cboe.com/role/STOCKBASEDCOMPENSATIONTables STOCK-BASED COMPENSATION (Tables) Tables http://www.cboe.com/role/STOCKBASEDCOMPENSATION 47 false false R48.htm 9955526 - Disclosure - EQUITY (Tables) Sheet http://www.cboe.com/role/EQUITYTables EQUITY (Tables) Tables http://www.cboe.com/role/EQUITY 48 false false R49.htm 9955527 - Disclosure - EARNINGS PER SHARE (Tables) Sheet http://www.cboe.com/role/EARNINGSPERSHARETables EARNINGS PER SHARE (Tables) Tables http://www.cboe.com/role/EARNINGSPERSHARE 49 false false R50.htm 9955528 - Disclosure - LEASES (Tables) Sheet http://www.cboe.com/role/LEASESTables LEASES (Tables) Tables http://www.cboe.com/role/LEASES 50 false false R51.htm 9955529 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION (Details) Sheet http://www.cboe.com/role/ORGANIZATIONANDBASISOFPRESENTATIONDetails ORGANIZATION AND BASIS OF PRESENTATION (Details) Details http://www.cboe.com/role/ORGANIZATIONANDBASISOFPRESENTATIONPolicies 51 false false R52.htm 9955530 - Disclosure - REVENUE RECOGNITION - Revenue by Product Line and Segment (Details) Sheet http://www.cboe.com/role/REVENUERECOGNITIONRevenuebyProductLineandSegmentDetails REVENUE RECOGNITION - Revenue by Product Line and Segment (Details) Details 52 false false R53.htm 9955531 - Disclosure - REVENUE RECOGNITION - Rollforward of Deferred Revenue (Details) Sheet http://www.cboe.com/role/REVENUERECOGNITIONRollforwardofDeferredRevenueDetails REVENUE RECOGNITION - Rollforward of Deferred Revenue (Details) Details 53 false false R54.htm 9955532 - Disclosure - ACQUISITIONS (Details) Sheet http://www.cboe.com/role/ACQUISITIONSDetails ACQUISITIONS (Details) Details http://www.cboe.com/role/ACQUISITIONS 54 false false R55.htm 9955533 - Disclosure - INVESTMENTS (Details) Sheet http://www.cboe.com/role/INVESTMENTSDetails INVESTMENTS (Details) Details http://www.cboe.com/role/INVESTMENTSTables 55 false false R56.htm 9955534 - Disclosure - PROPERTY AND EQUIPMENT, NET - Schedule of Property and Equipment, Net (Details) Sheet http://www.cboe.com/role/PROPERTYANDEQUIPMENTNETScheduleofPropertyandEquipmentNetDetails PROPERTY AND EQUIPMENT, NET - Schedule of Property and Equipment, Net (Details) Details 56 false false R57.htm 9955535 - Disclosure - PROPERTY AND EQUIPMENT, NET - Narrative (Details) Sheet http://www.cboe.com/role/PROPERTYANDEQUIPMENTNETNarrativeDetails PROPERTY AND EQUIPMENT, NET - Narrative (Details) Details 57 false false R58.htm 9955536 - Disclosure - CREDIT LOSSES (Details) Sheet http://www.cboe.com/role/CREDITLOSSESDetails CREDIT LOSSES (Details) Details http://www.cboe.com/role/CREDITLOSSESTables 58 false false R59.htm 9955537 - Disclosure - OTHER ASSETS, NET (Details) Sheet http://www.cboe.com/role/OTHERASSETSNETDetails OTHER ASSETS, NET (Details) Details http://www.cboe.com/role/OTHERASSETSNETTables 59 false false R60.htm 9955538 - Disclosure - GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD - Goodwill by Segment (Details) Sheet http://www.cboe.com/role/GOODWILLINTANGIBLEASSETSNETANDDIGITALASSETSHELDGoodwillbySegmentDetails GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD - Goodwill by Segment (Details) Details 60 false false R61.htm 9955539 - Disclosure - GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD - Intangible Assets by Segment (Details) Sheet http://www.cboe.com/role/GOODWILLINTANGIBLEASSETSNETANDDIGITALASSETSHELDIntangibleAssetsbySegmentDetails GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD - Intangible Assets by Segment (Details) Details 61 false false R62.htm 9955540 - Disclosure - GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD - Narrative (Details) Sheet http://www.cboe.com/role/GOODWILLINTANGIBLEASSETSNETANDDIGITALASSETSHELDNarrativeDetails GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD - Narrative (Details) Details http://www.cboe.com/role/GOODWILLINTANGIBLEASSETSNETANDDIGITALASSETSHELDTables 62 false false R63.htm 9955541 - Disclosure - GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD - Estimated Future Amortization (Details) Sheet http://www.cboe.com/role/GOODWILLINTANGIBLEASSETSNETANDDIGITALASSETSHELDEstimatedFutureAmortizationDetails GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD - Estimated Future Amortization (Details) Details 63 false false R64.htm 9955542 - Disclosure - GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD - Intangible Assets by Category (Details) Sheet http://www.cboe.com/role/GOODWILLINTANGIBLEASSETSNETANDDIGITALASSETSHELDIntangibleAssetsbyCategoryDetails GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD - Intangible Assets by Category (Details) Details 64 false false R65.htm 9955543 - Disclosure - ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Details) Sheet http://www.cboe.com/role/ACCOUNTSPAYABLEANDACCRUEDLIABILITIESDetails ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Details) Details http://www.cboe.com/role/ACCOUNTSPAYABLEANDACCRUEDLIABILITIESTables 65 false false R66.htm 9955544 - Disclosure - DEBT - Schedule of Long-term Debt (Details) Sheet http://www.cboe.com/role/DEBTScheduleofLongtermDebtDetails DEBT - Schedule of Long-term Debt (Details) Details 66 false false R67.htm 9955545 - Disclosure - DEBT - Narrative (Details) Sheet http://www.cboe.com/role/DEBTNarrativeDetails DEBT - Narrative (Details) Details 67 false false R68.htm 9955546 - Disclosure - DEBT - Debt Repayments (Details) Sheet http://www.cboe.com/role/DEBTDebtRepaymentsDetails DEBT - Debt Repayments (Details) Details 68 false false R69.htm 9955547 - Disclosure - DEBT - Interest Expense (Details) Sheet http://www.cboe.com/role/DEBTInterestExpenseDetails DEBT - Interest Expense (Details) Details 69 false false R70.htm 9955548 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME, NET (Details) Sheet http://www.cboe.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMENETDetails ACCUMULATED OTHER COMPREHENSIVE INCOME, NET (Details) Details http://www.cboe.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMENETTables 70 false false R71.htm 9955549 - Disclosure - CLEARING OPERATIONS - Narrative (Details) Sheet http://www.cboe.com/role/CLEARINGOPERATIONSNarrativeDetails CLEARING OPERATIONS - Narrative (Details) Details 71 false false R72.htm 9955550 - Disclosure - CLEARING OPERATIONS - Clearing Participant (Details) Sheet http://www.cboe.com/role/CLEARINGOPERATIONSClearingParticipantDetails CLEARING OPERATIONS - Clearing Participant (Details) Details 72 false false R73.htm 9955551 - Disclosure - FAIR VALUE MEASUREMENT -Fair Value Hierarchy for Assets and Liabilities on a Recurring Basis (Details) Sheet http://www.cboe.com/role/FAIRVALUEMEASUREMENTFairValueHierarchyforAssetsandLiabilitiesonaRecurringBasisDetails FAIR VALUE MEASUREMENT -Fair Value Hierarchy for Assets and Liabilities on a Recurring Basis (Details) Details 73 false false R74.htm 9955552 - Disclosure - FAIR VALUE MEASUREMENT - Fair Value Hierarchy of Financial Instruments Held (Details) Sheet http://www.cboe.com/role/FAIRVALUEMEASUREMENTFairValueHierarchyofFinancialInstrumentsHeldDetails FAIR VALUE MEASUREMENT - Fair Value Hierarchy of Financial Instruments Held (Details) Details 74 false false R75.htm 9955553 - Disclosure - FAIR VALUE MEASUREMENT - Fair Values of Debt Obligations (Details) Sheet http://www.cboe.com/role/FAIRVALUEMEASUREMENTFairValuesofDebtObligationsDetails FAIR VALUE MEASUREMENT - Fair Values of Debt Obligations (Details) Details 75 false false R76.htm 9955554 - Disclosure - SEGMENT REPORTING - Summarized Financial Information by Reportable Segment (Details) Sheet http://www.cboe.com/role/SEGMENTREPORTINGSummarizedFinancialInformationbyReportableSegmentDetails SEGMENT REPORTING - Summarized Financial Information by Reportable Segment (Details) Details 76 false false R77.htm 9955555 - Disclosure - SEGMENT REPORTING - Long-lived assets by geographic areas (Details) Sheet http://www.cboe.com/role/SEGMENTREPORTINGLonglivedassetsbygeographicareasDetails SEGMENT REPORTING - Long-lived assets by geographic areas (Details) Details 77 false false R78.htm 9955556 - Disclosure - EMPLOYEE BENEFIT PLANS (Details) Sheet http://www.cboe.com/role/EMPLOYEEBENEFITPLANSDetails EMPLOYEE BENEFIT PLANS (Details) Details http://www.cboe.com/role/EMPLOYEEBENEFITPLANS 78 false false R79.htm 9955557 - Disclosure - REGULATORY CAPITAL - Narrative (Details) Sheet http://www.cboe.com/role/REGULATORYCAPITALNarrativeDetails REGULATORY CAPITAL - Narrative (Details) Details 79 false false R80.htm 9955558 - Disclosure - REGULATORY CAPITAL - Subsidiaries with Regulatory Capital Requirements (Details) Sheet http://www.cboe.com/role/REGULATORYCAPITALSubsidiarieswithRegulatoryCapitalRequirementsDetails REGULATORY CAPITAL - Subsidiaries with Regulatory Capital Requirements (Details) Details 80 false false R81.htm 9955559 - Disclosure - STOCK-BASED COMPENSATION - Narrative (Details) Sheet http://www.cboe.com/role/STOCKBASEDCOMPENSATIONNarrativeDetails STOCK-BASED COMPENSATION - Narrative (Details) Details 81 false false R82.htm 9955560 - Disclosure - STOCK-BASED COMPENSATION - Restricted and Performance Stock Activity (Details) Sheet http://www.cboe.com/role/STOCKBASEDCOMPENSATIONRestrictedandPerformanceStockActivityDetails STOCK-BASED COMPENSATION - Restricted and Performance Stock Activity (Details) Details 82 false false R83.htm 9955561 - Disclosure - EQUITY - Narrative (Details) Sheet http://www.cboe.com/role/EQUITYNarrativeDetails EQUITY - Narrative (Details) Details 83 false false R84.htm 9955562 - Disclosure - EQUITY - Share Repurchase Program (Details) Sheet http://www.cboe.com/role/EQUITYShareRepurchaseProgramDetails EQUITY - Share Repurchase Program (Details) Details 84 false false R85.htm 9955563 - Disclosure - INCOME TAXES (Details) Sheet http://www.cboe.com/role/INCOMETAXESDetails INCOME TAXES (Details) Details http://www.cboe.com/role/INCOMETAXES 85 false false R86.htm 9955564 - Disclosure - EARNINGS PER SHARE (Details) Sheet http://www.cboe.com/role/EARNINGSPERSHAREDetails EARNINGS PER SHARE (Details) Details http://www.cboe.com/role/EARNINGSPERSHARETables 86 false false R87.htm 9955565 - Disclosure - COMMITMENTS, CONTINGENCIES, AND GUARANTEES (Details) Sheet http://www.cboe.com/role/COMMITMENTSCONTINGENCIESANDGUARANTEESDetails COMMITMENTS, CONTINGENCIES, AND GUARANTEES (Details) Details http://www.cboe.com/role/COMMITMENTSCONTINGENCIESANDGUARANTEES 87 false false R88.htm 9955566 - Disclosure - LEASES - Narrative (Details) Sheet http://www.cboe.com/role/LEASESNarrativeDetails LEASES - Narrative (Details) Details 88 false false R89.htm 9955567 - Disclosure - LEASES - Supplemental Balance Sheet (Details) Sheet http://www.cboe.com/role/LEASESSupplementalBalanceSheetDetails LEASES - Supplemental Balance Sheet (Details) Details 89 false false R90.htm 9955568 - Disclosure - LEASES - Lease Costs and Other Information (Details) Sheet http://www.cboe.com/role/LEASESLeaseCostsandOtherInformationDetails LEASES - Lease Costs and Other Information (Details) Details 90 false false R91.htm 9955569 - Disclosure - LEASES - Maturities (Details) Sheet http://www.cboe.com/role/LEASESMaturitiesDetails LEASES - Maturities (Details) Details 91 false false R92.htm 9955570 - Disclosure - SUBSEQUENT EVENTS (Details) Sheet http://www.cboe.com/role/SUBSEQUENTEVENTSDetails SUBSEQUENT EVENTS (Details) Details http://www.cboe.com/role/SUBSEQUENTEVENTS 92 false false All Reports Book All Reports cboe-20260331.htm cboe-20260331.xsd cboe-20260331_cal.xml cboe-20260331_def.xml cboe-20260331_lab.xml cboe-20260331_pre.xml cboe-20260331_g1.jpg cboe-20260331_g10.jpg cboe-20260331_g11.jpg cboe-20260331_g12.jpg cboe-20260331_g13.jpg cboe-20260331_g14.jpg cboe-20260331_g15.jpg cboe-20260331_g16.jpg cboe-20260331_g17.jpg cboe-20260331_g18.jpg cboe-20260331_g19.jpg cboe-20260331_g2.jpg cboe-20260331_g20.jpg cboe-20260331_g21.jpg cboe-20260331_g22.jpg cboe-20260331_g23.jpg cboe-20260331_g24.jpg cboe-20260331_g25.jpg cboe-20260331_g3.jpg cboe-20260331_g4.jpg cboe-20260331_g5.jpg cboe-20260331_g6.jpg cboe-20260331_g7.jpg cboe-20260331_g8.jpg cboe-20260331_g9.jpg http://fasb.org/srt/2025 http://fasb.org/us-gaap/2025 http://xbrl.sec.gov/dei/2025 http://xbrl.sec.gov/ecd/2025 true true