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Other Assets and Other Liabilities - Schedule of Components of Other Assets and Other Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Other assets: |  |
Derivatives | $ 247.7 | $ 453.3
Other Investments (Note 5) | 166.3 | 7.7
ROU asset | 164.5 | 189.1
Amounts advanced to agents | 146.9 | 135.9
Prepaid expenses | 85.5 | 81.0
Equity method investments | 38.4 | 34.5
Prepaid pension costs (Note 12) |  | 39.9
Other | 148.9 | 83.3
Total other assets | 998.2 |
Total other assets | 737.7 | 1,024.7
Other liabilities: |  |
Operating lease liabilities | 203.0 | 234.9
Derivatives | 183.8 | 430.3
Accrued agent contact costs | 5.4 | 77.1
Other | 71.5 | 60.1
Total other liabilities | 463.7 |
Total other liabilities | $ 269.4 | $ 802.4

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