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Basis Of Presentation | 6 Months Ended
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Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Basis Of Presentation | Basis of Presentation The consolidated financial statements consist of CME Group Inc. (CME Group) and its subsidiaries (collectively, the company), including Chicago Mercantile Exchange Inc. (CME), Board of Trade of the City of Chicago, Inc. (CBOT), New York Mercantile Exchange, Inc. (NYMEX), Commodity Exchange, Inc. (COMEX) and NEX Group Limited (NEX). The clearing house is operated by CME. In January 2021, the company announced that it agreed with IHS Markit (now a part of S&P Global) to combine their post-trade services into a new joint venture, OSTTRA. The joint venture was launched in September 2021. OSTTRA performs trade processing and risk mitigation services. The accompanying interim consolidated financial statements have been prepared by CME Group without audit. Certain notes and other information normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States have been condensed or omitted. In the opinion of management, the accompanying consolidated financial statements include all adjustments (consisting only of normal recurring adjustments) considered necessary to present fairly the financial position of the company at June 30, 2022 and December 31, 2021 and the results of operations and cash flows for the periods indicated. Quarterly results are not necessarily indicative of results for any subsequent period. During the fourth quarter of 2021, the company revised the presentation of the consolidated statements of cash flows to include cash performance bonds and guaranty fund contributions as restricted cash and restricted cash equivalents within the beginning and ending balances of the reconciliation of cash, cash equivalents, restricted cash and restricted cash equivalents. Total cash flows from financing activities were revised to include the changes associated with the cash performance bonds and guaranty fund contribution liability. See Note 4. Performance Bonds and Guaranty Fund Contributions for additional information on cash performance bonds and guaranty fund contributions. The prior period amounts have been revised to conform to the current period presentation. The revision in presentation is considered immaterial to the company's overall financial statements and has had no impact on the consolidated balance sheets, consolidated statements of income, consolidated statements of comprehensive income or consolidated statements of equity, including all previously filed financial statements. These cash performance bonds and guaranty fund contributions cannot be used for the company's operations or to satisfy any operational liabilities. The following table presents the effects of the changes on the presentation of these cash flows to the previously reported consolidated statements of cash flows of June 30, 2021:
|  | 2021
(in millions) |  | As Previously Reported |  | Adjustments |  | Revised
Net cash provided by (used in) financing activities |  | $ | (1,554.3) |  |  | 54,518.0 |  |  | $ | 52,963.7 |
Net change in cash, cash equivalents, restricted cash and restricted cash equivalents |  | (519.8) |  |  | 54,518.0 |  |  | 53,998.2 |
The accompanying consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto in CME Group’s Annual Report on Form 10-K for the year ended December 31, 2021, filed with the Securities and Exchange Commission (SEC) on February 25, 2022.

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- Definition The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -URI https://asc.fasb.org/topic&trid=2122149 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -URI https://asc.fasb.org/topic&trid=2197479 + Details
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