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Performance Bonds and Guaranty Fund Contributions (Tables) | 12 Months Ended
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Dec. 31, 2021
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, 2021 and 2020 were as follows:
|  | 2021 |  | 2020
(in millions) |  | Cash |  | Non-Cash Deposits and IEF Funds (1) |  | Cash |  | Non-Cash Deposits and IEF Funds (1)
Performance bonds |  | $ | 151,094.8 |  |  | $ | 70,005.3 |  |  | $ | 83,923.5 |  |  | $ | 124,573.7 |
Guaranty fund contributions |  | 6,745.6 |  |  | 3,326.1 |  |  | 2,770.0 |  |  | 6,015.7 |
Cross-margin arrangements |  | 83.6 |  |  | — |  |  | 88.1 |  |  | 8.1 |
Performance bond collateral for delivery |  | 25.6 |  |  | 2.1 |  |  | 0.2 |  |  | 2.1 |
Total |  | $ | 157,949.6 |  |  | $ | 73,333.5 |  |  | $ | 86,781.8 |  |  | $ | 130,599.6 |
Letters of credit | At December 31, 2021 and 2020 these letters of credit, which are not included in the accompanying consolidated balance sheets, were as follows:
(in millions) |  | 2021 |  | 2020
Performance bonds |  | $ | 3,739.5 |  |  | $ | 3,394.8 |
Performance bond collateral for delivery |  | 2,603.7 |  |  | 1,290.4 |
Total Letters of Credit |  | $ | 6,343.2 |  |  | $ | 4,685.2 |

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