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DEBT (Details) € in Millions, $ in Millions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 27, 2023 USD ($) | Oct. 20, 2023 USD ($) | Sep. 28, 2023 USD ($) | Jun. 21, 2023 USD ($) | May 12, 2023 USD ($) | Dec. 27, 2022 USD ($) | Dec. 01, 2022 USD ($) | Nov. 01, 2022 USD ($) | Sep. 22, 2022 USD ($) | Aug. 25, 2022 USD ($) | May 31, 2022 USD ($) | Apr. 29, 2022 USD ($) | Feb. 25, 2022 USD ($) subsidiary | Jun. 25, 2021 USD ($) | Jul. 01, 2020 USD ($) | Dec. 31, 2023 USD ($) subsidiary | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2023 EUR (€) subsidiary | Mar. 16, 2022 USD ($) | Dec. 15, 2020 USD ($) | Jul. 01, 2020 EUR (€) | Mar. 22, 2018 USD ($) | Jan. 12, 2017 USD ($)
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional draws on term loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 663.6 | $ 110.0 |  |  |  |  |  |
Repayments of outstanding indebtedness |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 305.0 | 220.0 | $ 20.0 |  |  |  |  |  |
Borrowings outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,439.2 | 1,742.0 |  |  |  |  |  |  |
Amended term loan agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of outstanding indebtedness | $ 15.0 | $ 60.0 | $ 90.0 | $ 75.0 | $ 65.0 | $ 30.0 | $ 50.0 | $ 40.0 | $ 50.0 | $ 50.0 |  |  |  |  |  | $ 305.0 | 220.0 |  |  |  |  |  |  |
Amended term loan agreement | Prime Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.50% |  |  |  |  |  |  |  |
Amended term loan agreement | Secured Overnight Financing Rate ("SOFR") |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.65% |  |  |  |  |  |  |  |
Term Loan Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument face amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 300.0 |
Repayments of outstanding indebtedness |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 305.0 |  |  |  |  |  |  |  |
Minimum consolidated interest ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.00 |  |  |  |  |  |  |  |
Maximum consolidated leverage ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.50 |  |  | 3.50 |  |  |  |  |
Maximum consolidated leverage ratio, scenario one |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.25 |  |  | 4.25 |  |  |  |  |
Maximum consolidated leverage ratio, scenario two |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.00 |  |  | 4.00 |  |  |  |  |
Borrowings outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 304.7 |  |  |  |  |  |  |
3.650% Senior Notes due January 2027 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument face amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 650.0 | $ 650.0 |  |  |  |  |  |  | $ 650.0
Interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.65% | 3.65% |  | 3.65% | 3.65% |  |  |  | 3.65%
Borrowings outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 647.9 | $ 647.3 |  |  |  |  |  |  |
1.625% Senior Notes due December 2030 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument face amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 500.0 | $ 500.0 |  |  |  | $ 500.0 |  |  |
Interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.625% | 1.625% |  | 1.625% | 1.625% | 1.625% |  |  |
Borrowings outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 494.8 | $ 494.0 |  |  |  |  |  |  |
3.000% Senior Notes due March 2032 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument face amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 300.0 | $ 300.0 |  |  | $ 300.0 |  |  |  |
Interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.00% | 3.00% |  | 3.00% | 3.00% |  |  |  |
Borrowings outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 296.5 | $ 296.0 |  |  |  |  |  |  |
Senior Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 101.00% |  |  |  |  |  |  |  |
Revolving Credit Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum consolidated interest ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.00 |  |  |  |  |  |  |  |
Maximum consolidated leverage ratio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.50 |  |  | 3.50 |  |  |  |  |
Minimum consolidated interest ratio, scenario one |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.25 |  |  |  |  |  |  |  |
Minimum consolidated interest ratio, scenario two |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.00 |  |  |  |  |  |  |  |
Credit agreement, maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  | $ 400.0 |  |  |  |  |  |  |  |  |  |  |
Term of agreement |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity, increase limit |  |  |  |  |  |  |  |  |  |  |  |  | $ 200.0 |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity, total with increase |  |  |  |  |  |  |  |  |  |  |  |  | $ 600.0 |  |  |  |  |  |  |  |  |  |  |
Number of subsidiaries designated as additional borrowers | subsidiary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  | 0 |  |  |  |  |
Borrowings outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.0 |  |  |  |  |  |  |  |
Borrowing capacity available |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 400.0 |  |  |  |  |  |  |  |
Revolving Credit Agreement | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.75% |  |  |  |  |  |  |  |
Number of subsidiaries that may be designated as additional borrowers | subsidiary |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Agreement | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.25% |  |  |  |  |  |  |  |
Revolving Credit Agreement | Prime Rate | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.00% |  |  |  |  |  |  |  |
Revolving Credit Agreement | Prime Rate | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.25% |  |  |  |  |  |  |  |
Revolving Credit Agreement | Dollars SFOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.10% |  |  |  |  |  |  |  |
Revolving Credit Agreement | Sterling SONIA |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.0326% |  |  |  |  |  |  |  |
Revolving Credit Agreement | Euros EURIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.00% |  |  |  |  |  |  |  |
Revolving Credit Agreement | Swing Line Sub-Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit agreement, maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  | $ 25.0 |  |  |  |  |  |  |  |  |  |  |
Cboe Clear Europe Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument face amount | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 1,250 |  |
Maximum borrowing capacity, increase limit | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 500 |  |
Maximum borrowing capacity, total with increase | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,750 |  |
Borrowings outstanding | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 0 |  |  |  |  |
Borrowing capacity available | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 1,250 |  |  |  |  |
Debt instrument, threshold amount transferred to provider of settlement or custody services | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 500 |  |
Percentage of commitment fee |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.275% |  |  |  |  |  |  |  |  |
Debt instrument, threshold net worth on each drawdown |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,750.0 |  |  |  |  |  |  |  |  |
Debt instrument, amount to meet minimum liquidity regulations | € |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 30 |  |
Cboe Clear Europe Credit Facility | Base Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.60% |  |  |  |  |  |  |  |  |
Cboe Clear Europe Credit Facility | Federal Funds Effective Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate margin (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.50% |  |  |  |  |  |  |  |  |
Cboe Asia Pacific | Amended term loan agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional draws on term loan |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 110.0 |  |  |  |  |  |  |  |  |  |
Cboe Digital | Amended term loan agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional draws on term loan |  |  |  |  |  |  |  |  |  |  |  | $ 190.0 |  |  |  |  |  |  |  |  |  |  |  |
Cboe Canada | Amended term loan agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional draws on term loan |  |  |  |  |  |  |  |  |  |  | $ 175.0 |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition The threshold amount to meet minimum liquidity regulations under the debt instrument covenant. + References No definition available. + Details
Name: | cboe_DebtInstrumentAmountToMeetMinimumLiquidityRegulations
Namespace Prefix: | cboe_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Debt Instrument, Covenant, Interest Coverage Ratio, Minimum + References No definition available. + Details
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Namespace Prefix: | cboe_
Data Type: | xbrli:pureItemType
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- Definition Debt Instrument, Covenant, Interest Coverage Ratio, Minimum, Scenario One. + References No definition available. + Details
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Namespace Prefix: | cboe_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

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- Definition Debt Instrument, Covenant, Interest Coverage Ratio, Minimum, Scenario Two. + References No definition available. + Details
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Namespace Prefix: | cboe_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

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- Definition Debt Instrument, Covenant, Leverage Ratio, Maximum + References No definition available. + Details
Name: | cboe_DebtInstrumentCovenantLeverageRatioMaximum
Namespace Prefix: | cboe_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

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- Definition Debt Instrument, Covenant, Leverage Ratio, Maximum, Scenario One. + References No definition available. + Details
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Namespace Prefix: | cboe_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

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- Definition Debt Instrument, Covenant, Leverage Ratio, Maximum, Scenario Two. + References No definition available. + Details
Name: | cboe_DebtInstrumentCovenantLeverageRatioMaximumScenarioTwo
Namespace Prefix: | cboe_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

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- Definition The threshold amount transferred to (or secured in favor of) any provider of settlement or custody services under the debt instrument arrangement. + References No definition available. + Details
Name: | cboe_DebtInstrumentThresholdAmountTransferredToProviderOfSettlementOrCustodyServices
Namespace Prefix: | cboe_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition The amount of threshold net worth on each drawdown and delivery of compliance certificates under the debt instrument covenant. + References No definition available. + Details
Name: | cboe_DebtInstrumentThresholdNetWorthOnEachDrawdown
Namespace Prefix: | cboe_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Line of Credit Facility, Accordion Feature, Higher Borrowing Capacity Option + References No definition available. + Details
Name: | cboe_LineofCreditFacilityAccordionFeatureHigherBorrowingCapacityOption
Namespace Prefix: | cboe_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Line of Credit Facility, Accordion Feature, Increase Limit + References No definition available. + Details
Name: | cboe_LineofCreditFacilityAccordionFeatureIncreaseLimit
Namespace Prefix: | cboe_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The number of subsidiaries designated as additional borrowers. + References No definition available. + Details
Name: | cboe_NumberOfSubsidiariesDesignatedAsAdditionalBorrowers
Namespace Prefix: | cboe_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition The number of subsidiaries that may be designated as additional borrowers. + References No definition available. + Details
Name: | cboe_NumberOfSubsidiariesThatMayBeDesignatedAsAdditionalBorrowers
Namespace Prefix: | cboe_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
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