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ORGANIZATION AND BASIS OF PRESENTATION (Details) $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($) segment	Jun. 30, 2022 USD ($) segment	Mar. 31, 2022 segment	Dec. 31, 2022 USD ($)
ORGANIZATION AND BASIS OF PRESENTATION
Number of reportable segments | segment	6	6	5
Digital assets - safeguarded assets	$ 42.0	$ 22.4		$ 22.9
Digital assets - safeguarded liabilities	$ 42.0	$ 22.4		$ 22.9

X

- Definition

Fair value of asset to safeguard crypto-asset held for platform user.

+ References

No definition available.

+ Details

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Namespace Prefix:	cboe_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Fair value of obligation to safeguard crypto-asset held for platform user.

+ References

No definition available.

+ Details

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Namespace Prefix:	cboe_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8672-108599

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X

- References

No definition available.

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