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v3.23.2

Nature of Operations and Significant Accounting Policies - Pre-tax Impacts To Comprehensive Income (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Increase to income before taxes |  |  |  |
Cost of reinsurance amortization | $ (15.4) | $ (0.5) | $ (33.2) | $ (5.0)
Income (loss) before income taxes | $ 453.6 | 3,970.6 | $ 241.1 | 4,349.0
Adjustment related to actuarial balance re-cohorting |  |  |  |
Increase to income before taxes |  |  |  |
Cost of reinsurance amortization |  | (33.7) |  | 33.7
Change in additional liability for certain benefit features |  | 167.4 |  | 167.4
Income (loss) before income taxes |  | 201.1 |  | 201.1
Increase to pre-tax other comprehensive income |  |  |  |
Cost of reinsurance gains (losses) |  | (2.1) |  | (2.1)
Change in additional liability for certain benefit features unrealized gains |  | 7.8 |  | 7.8
Total increase to pre-tax other comprehensive income |  | 5.7 |  | 5.7
Total increase to pre-tax comprehensive income |  | $ 206.8 |  | $ 206.8

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