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CLEARING OPERATIONS - Clearing participant (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Clearing Operations |  |
Cash Contributions | $ 1,169.2 | $ 1,190.6
Non-Cash Contributions | 421.5 | 645.9
Total Contributions | 1,590.7 | 1,836.5
Margin deposits |  |
Clearing Operations |  |
Cash Contributions | 600.0 | 319.5
Non-Cash Contributions | 287.0 | 401.0
Total Contributions | 887.0 | 720.5
Clearing funds |  |
Clearing Operations |  |
Cash Contributions | 145.9 | 492.6
Non-Cash Contributions | 41.9 | 69.7
Total Contributions | 187.8 | 562.3
Interoperability funds |  |
Clearing Operations |  |
Cash Contributions | 423.3 | 378.5
Non-Cash Contributions | 92.6 | 175.2
Total Contributions | $ 515.9 | $ 553.7

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