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RECENT ACCOUNTING PRONOUNCEMENTS - Adopted (Details) - USD ($) $ in Millions	Dec. 31, 2022	Jun. 30, 2022
RECENT ACCOUNTING PRONOUNCEMENTS
Digital assets - safeguarded assets	$ 22.9	$ 22.4
Digital assets - safeguarded liabilities	$ 22.9	$ 22.4

X

- Definition

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

+ References

No definition available.

+ Details

Name:	cboe_SafeguardingAssetPlatformOperatorCryptoAsset
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

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

X

- References

No definition available.

+ Details

Name:	us-gaap_AccountingChangesAndErrorCorrectionsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration