XML 37 R27.htm IDEA: XBRL DOCUMENT v3.25.2

Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2025

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]

Financial instruments measured at fair value on a recurring basis

The following table presents financial instruments measured at fair value on a recurring basis:

						June 30, 2025
(in millions)						Level 1						Level 2						Level 3						Total
Assets at Fair Value:
Marketable securities:
Corporate debt securities						$	8.1					$	—					$	—					$	8.1
Mutual funds						109.2						—						—						109.2
Equity securities						0.3						—						—						0.3
Total Marketable Securities						117.6						—						—						117.6
Total Assets at Fair Value						$	117.6					$	—					$	—					$	117.6

Fair value of Debt Instruments

At June 30, 2025, the fair values were as follows:

(in millions)			Fair Value						Level
$500.0 million fixed rate notes due June 2028			497.4						Level 2
$750.0 million fixed rate notes due March 2030			754.6						Level 2
$750.0 million fixed rate notes due March 2032			672.3						Level 2
$750.0 million fixed rate notes due September 2043			755.0						Level 2
$700.0 million fixed rate notes due June 2048			591.4						Level 2

X

- Definition

[Table Text Block] for Fair value of Debt Instruments [Table]

+ References

No definition available.

+ Details

Name:	cme_FairvalueofDebtInstrumentsTableTextBlock
Namespace Prefix:	cme_
Data Type:	dtr-types1:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

+ Details

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

X

- Definition

The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 820
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/820/tableOfContent

+ Details

Name:	us-gaap_FairValueMeasurementInputsDisclosureTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration