Name:	cboe_ClearingOperationsLineItems
Namespace Prefix:	cboe_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Default and Liquid Waterfalls, Own Clearing Percent, Regulatory Capital

No definition available.

Name:	cboe_DefaultAndLiquidWaterfallsOwnClearingPercentRegulatoryCapital
Namespace Prefix:	cboe_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

The percent of own regulatory capital is used for clearing the default and liquid waterfalls participants.

No definition available.

Name:	cboe_DefaultAndLiquidWaterfallsOwnClearingPercentRegulatoryCapitalScenarioOne
Namespace Prefix:	cboe_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Default and Liquid Waterfalls, Own Clearing Percent, Regulatory Capital, Scenario Two

No definition available.

Name:	cboe_DefaultAndLiquidWaterfallsOwnClearingPercentRegulatoryCapitalScenarioTwo
Namespace Prefix:	cboe_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Represents the number of other central counterparties with whom interoperable arrangements are made.

No definition available.

Name:	cboe_NumberOfCentralCounterpartiesWithWhomInteroperableArrangementsAreMade
Namespace Prefix:	cboe_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Represents the number of clearing houses that the entity operates.

No definition available.

Name:	cboe_NumberOfClearingHousesOperated
Namespace Prefix:	cboe_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Number Of European and American Markets In Which Equity Is Cleared

No definition available.

Name:	cboe_NumberOfEuropeanAndAmericanMarketsInWhichEquityIsCleared
Namespace Prefix:	cboe_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Represents the number of European markets in which equity is cleared.

No definition available.

Name:	cboe_NumberOfEuropeanMarketsInWhichEquityIsCleared
Namespace Prefix:	cboe_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Number of forms of utilization of default and liquidity waterfalls.

No definition available.

Name:	cboe_NumberOfFormsUtilizationOfDefaultAndLiquidityWaterfalls
Namespace Prefix:	cboe_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-8

Name:	us-gaap_RestrictedCashCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Name:	srt_ConsolidatedEntitiesAxis=cboe_CboeClearEuropeCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: