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CLEARING OPERATIONS - Narrative (Details)	1 Months Ended	12 Months Ended
	Sep. 30, 2021 item	Dec. 31, 2023 Counterparty item
Clearing Operations
Number of clearing houses operated		2
Cboe Clear Europe Credit Facility
Clearing Operations
Number of central counterparties with whom interoperable agreements are held | Counterparty		2
Default and liquid waterfalls regulatory capital		35.00%
Number of forms utilized for default waterfalls		2
Cboe Clear Europe Credit Facility | Scenario One
Clearing Operations
Default and liquid waterfalls regulatory capital		25.00%
Cboe Clear Europe Credit Facility | Scenario Two | Maximum
Clearing Operations
Default and liquid waterfalls regulatory capital		25.00%
Cboe Clear Europe Credit Facility | Scenario Two | Minimum
Clearing Operations
Default and liquid waterfalls regulatory capital		10.00%
Cboe Clear Europe Credit Facility
Clearing Operations
Number of European markets	10	18

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- Definition

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- Definition

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

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- Definition

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

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- Definition

Represents the number of clearing houses that the entity operates.

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- Definition

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

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Number of forms of utilization of default and liquidity waterfalls.

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