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CLEARING OPERATIONS - Narrative (Details) - Cboe Clear Europe Credit Facility
1 Months Ended 12 Months Ended
Sep. 30, 2021
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Dec. 31, 2022
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Counterparty
Clearing Operations    
Number of European markets | item 10 18
Number of central counterparties | Counterparty   2
Default and liquid waterfalls regulatory capital   25.00%