XML 100 R86.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Fair Value Measurements (Debt Instruments) (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Long-term debt |  | $ 3,425.4 | $ 3,422.4
$750.0 Million Fixed Rate Notes Due March 2025, Interest Equal To 3.00% [Member] |  |  |
Long-term debt | [1] | 749.1 | 748.4
$500.0 Million Fixed Rate Notes Due June 2028, Interest Equal To 3.75% [Member] [Domain] |  |  |
Long-term debt |  | 498.1 | 497.7
$750.0 million Fixed Rate Notes Due September 2043 Interest Equal To 5.3% [Member] |  |  |
Long-term debt | [2] | 744.0 | 743.7
$700.0 Million Fixed Rate Notes Due June 2048, Interest Equal To 4.15% [Member] [Domain] [Domain] |  |  |
Long-term debt |  | 691.3 | 690.9
$750.0 Million Fixed Rate Notes Due March 2032, Interest Equal To 2.65% |  |  |
Long-term debt |  | 742.9 | $ 741.7
Fair Value, Inputs, level 2 [Member] | $750.0 Million Fixed Rate Notes Due March 2025, Interest Equal To 3.00% [Member] |  |  |
Debt Instrument, Fair Value Disclosure |  | 733.8 |
Fair Value, Inputs, level 2 [Member] | $500.0 Million Fixed Rate Notes Due June 2028, Interest Equal To 3.75% [Member] [Domain] |  |  |
Debt Instrument, Fair Value Disclosure |  | 489.3 |
Fair Value, Inputs, level 2 [Member] | $750.0 million Fixed Rate Notes Due September 2043 Interest Equal To 5.3% [Member] |  |  |
Debt Instrument, Fair Value Disclosure |  | 802.2 |
Fair Value, Inputs, level 2 [Member] | $700.0 Million Fixed Rate Notes Due June 2048, Interest Equal To 4.15% [Member] [Domain] [Domain] |  |  |
Debt Instrument, Fair Value Disclosure |  | 641.0 |
Fair Value, Inputs, level 2 [Member] | $750.0 Million Fixed Rate Notes Due March 2032, Interest Equal To 2.65% |  |  |
Debt Instrument, Fair Value Disclosure |  | $ 669.0 |
[1] | The company maintained a forward-starting interest rate swap agreement that modified the interest obligation associated with these notes so that the interest payable on the notes effectively became fixed at a rate of 3.11%.
[2] | The company maintained a forward-starting interest rate swap agreement that modified the interest obligation associated with these notes so that the interest payable on the notes effectively became fixed at a rate of 4.73%

X
- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69B -Publisher FASB -URI https://asc.fasb.org//1943274/2147481568/470-20-55-69B Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69C -Publisher FASB -URI https://asc.fasb.org//1943274/2147481568/470-20-55-69C Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1D -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1D Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-10 + Details
Name: | us-gaap_DebtInstrumentFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Carrying value as of the balance sheet date of uncollateralized debt obligation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_UnsecuredLongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cme_A750.0MillionFixedRateNotesDueMarch2025InterestEqualTo3.00Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cme_A500.0MillionFixedRateNotesDueJune2028InterestEqualTo3.75MemberDomain
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cme_A750.0millionFixedRateNotesDueSeptember2043InterestEqualTo5.3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cme_A700.0MillionFixedRateNotesDueJune2048InterestEqualTo4.15MemberDomainDomain
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=cme_A7500MillionFixedRateNotesDueMarch2032InterestEqualTo265Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |