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Performance Bonds and Guaranty Fund Contributions (Tables) | 12 Months Ended
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Dec. 31, 2023
Performance Bonds and Guaranty Fund Contributions [Abstract] |
Cash and securities held as performance bonds and guaranty fund contributions at fair value | Cash and non-cash deposits held as performance bonds and guaranty fund contributions at fair value at December 31, 2023 and 2022 were as follows:
|  | 2023 |  | 2022
(in millions) |  | Cash |  | Non-Cash Deposits and IEF Funds (1) |  | Cash |  | Non-Cash Deposits and IEF Funds (1)
Performance bonds |  | $ | 87,285.5 |  |  | $ | 180,866.3 |  |  | $ | 132,653.7 |  |  | $ | 94,127.2 |
Guaranty fund contributions |  | 2,379.6 |  |  | 6,849.6 |  |  | 2,450.3 |  |  | 5,026.0 |
Cross-margin arrangements |  | 183.1 |  |  | 1,374.5 |  |  | 142.6 |  |  | 561.1 |
Other(2) |  | 344.3 |  |  | 2.1 |  |  | 2.6 |  |  | 2.1 |
Total |  | $ | 90,192.5 |  |  | $ | 189,092.5 |  |  | $ | 135,249.2 |  |  | $ | 99,716.4 |
Letters of credit | At December 31, 2023 and 2022, these letters of credit, which are not included in the accompanying consolidated balance sheets, were as follows:
(in millions) |  | 2023 |  | 2022
Performance bonds |  | $ | 3,916.7 |  |  | $ | 4,674.3 |
Performance bond collateral for delivery |  | 4,631.4 |  |  | 3,445.0 |
Total Letters of Credit |  | $ | 8,548.1 |  |  | $ | 8,119.3 |

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