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Segment Information - Revenues from exited business (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Revenues from exited business: |  |  |  |  |
Change in fair value of funds withheld embedded derivative |  | $ 93.9 | $ 3,067.3 | $ (532.7) | $ 3,067.3
Net realized capital gains (losses) on funds withheld assets | [1] | 37.8 | 689.0 | 118.8 | 689.0
Reconciling Items |  |  |  |  |
Revenues from exited business: |  |  |  |  |
Change in fair value of funds withheld embedded derivative |  | 93.9 | 3,067.3 | (532.7) | 3,067.3
Net realized capital gains (losses) on funds withheld assets |  | 37.8 | 689.0 | 118.8 | 689.0
Amortization of reinsurance gain |  | 1.5 | 4.9 | 2.9 | 4.9
Other impacts of reinsured business |  | (2.3) |  | (5.7) |
Total revenues from exited business |  | $ 130.9 | $ 3,761.2 | $ (416.7) | $ 3,761.2
[1] | Includes realized and unrealized gains (losses). See Note 3, Investments, for further details.

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