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Equity - Redeemable Noncontrolling Interests (Details) - USD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
Jun. 01, 2022 | Dec. 31, 2022
Noncontrolling Interest [Line Items] |  |
Interest in joint venture minimum (as a percent) |  | 20.00%
Change in control period |  | 15 days
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |  |
Balance as of December 31, 2021 |  | $ 3,429
Net income attributable to redeemable noncontrolling interest |  | 249
Distributions to noncontrolling interest |  | (278)
Redemption value adjustment |  | (545)
Other |  | 2
Balance as of December 31, 2022 |  | 3,267
Noncontrolling Interest, Increase from Subsidiary Equity Issuance |  | $ 410
CME Group |  |
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |  |
Noncontrolling Interest, Increase from Subsidiary Equity Issuance | $ 410 |
CME Group |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling interest ownership by noncontrolling owners (as a percent) |  | 27.00%
IHS Markit Ltd | CME Group |  |
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |  |
Noncontrolling Interest, Ownership Percentage Exchanged | 27.00% |
S&P Dow Jones Indices LLC Joint Venture | CME Group |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling interest ownership by noncontrolling owners (as a percent) | 27.00% |

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- Definition Change in noncontrolling interest during the period as a result of a change in the redemption value of redeemable noncontrolling interest. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 15 -URI https://asc.fasb.org/extlink&oid=122040564&loc=SL6540498-122764 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 16(c) -URI https://asc.fasb.org/extlink&oid=122040564&loc=SL6540498-122764 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 14 -URI https://asc.fasb.org/extlink&oid=122040564&loc=SL6540498-122764 + Details
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