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Intangible Assets and Goodwill Goodwill (Tables) | 12 Months Ended
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Dec. 31, 2022
Goodwill [Line Items] |
Goodwill Disclosure [Text Block] | Goodwill activity consisted of the following for the years ended December 31, 2022 and 2021:
(in millions) |  | Balance at December 31, 2021 |  |  |  | Deconsolidation(1) |  | Other Activity (2) |  | Balance at December 31, 2022
CBOT Holdings |  | $ | 5,066.4 |  |  |  |  | $ | — |  |  | $ | — |  |  | $ | 5,066.4 |
NYMEX Holdings |  | 2,462.2 |  |  |  |  | — |  |  | — |  |  | 2,462.2 |
NEX |  | 2,959.0 |  |  |  |  | — |  |  | (45.5) |  |  | 2,913.5 |
Other |  | 40.4 |  |  |  |  | — |  |  | — |  |  | 40.4 |
Total Goodwill |  | $ | 10,528.0 |  |  |  |  | $ | — |  |  | $ | (45.5) |  |  | $ | 10,482.5 |
(in millions) |  | Balance at December 31, 2020 |  |  |  | Deconsolidation(1) |  | Other Activity (2) |  | Balance at December 31, 2021
CBOT Holdings |  | $ | 5,066.4 |  |  |  |  | $ | — |  |  | $ | — |  |  | $ | 5,066.4 |
NYMEX Holdings |  | 2,462.2 |  |  |  |  | — |  |  | — |  |  | 2,462.2 |
NEX |  | 3,229.8 |  |  |  |  | (246.2) |  |  | (24.6) |  |  | 2,959.0 |
Other |  | 40.4 |  |  |  |  | — |  |  | — |  |  | 40.4 |
Total Goodwill |  | $ | 10,798.8 |  |  |  |  | $ | (246.2) |  |  | $ | (24.6) |  |  | $ | 10,528.0 |
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- Definition The entire disclosure for goodwill. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -URI https://asc.fasb.org/subtopic&trid=2144439 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 55 -Paragraph 24 -URI https://asc.fasb.org/extlink&oid=122137925&loc=d3e14258-109268 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 + Details
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- 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 No definition available. + Details
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