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CLEARING OPERATIONS - Narrative (Details)	1 Months Ended	3 Months Ended
	Sep. 30, 2021 market	Mar. 31, 2025 Counterparty jurisdiction item form market
Clearing Operations
Number of clearing houses operated | item		2
Number of European markets | market	10	18
Cboe Clear Europe Credit Facility
Clearing Operations
Number of central counterparties with whom interoperable agreements are held | Counterparty		2
Number of forms utilized for default waterfalls | form		2
Default and liquidity waterfalls regulatory capital		35.00%
Default and liquidity waterfalls regulatory capital, scenario one		25.00%
Cboe Clear Europe Credit Facility | Minimum
Clearing Operations
Default and liquidity waterfalls regulatory capital, scenario two		10.00%
Cboe Clear Europe Credit Facility | Maximum
Clearing Operations
Default and liquidity waterfalls regulatory capital, scenario two		25.00%
Cboe Clear U.S.
Clearing Operations
Number of U.S. jurisdictions authorized | jurisdiction		50

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Default and Liquid Waterfalls, Own Clearing Percent, Regulatory Capital

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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

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

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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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- Definition

Number of forms of utilization of default and liquidity waterfalls.

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- Definition

Represents the number of U.S. jurisdictions in which money service business is conducted

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