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Accumulated Other Comprehensive Income (Loss) (Tables) | 6 Months Ended
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Jun. 30, 2023
Equity [Abstract] |
Schedule of accumulated other comprehensive income (loss) | The following table reconciles these components.
($ in millions) |  | Net Unrealized Investment Gains (Losses) on Fixed Maturity Securities(1) |  | Net Reserve Remeasurements Attributable to Discount Rates(1) |  | Net Funded Status of Benefit Plans(1) |  | Total(1)
Beginning balance, April 1, 2023 |  | $ | (356.4) |  |  | $ | 17.8 |  |  | $ | (8.8) |  |  | $ | (347.4) |
Other comprehensive income (loss) before reclassifications |  | (48.9) |  |  | 25.1 |  |  | — |  |  | (23.8) |
Amounts reclassified from AOCI(2) |  | 11.6 |  |  | — |  |  | — |  |  | 11.6 |
Net current period other comprehensive income (loss) |  | (37.3) |  |  | 25.1 |  |  | — |  |  | (12.2) |
Ending balance, June 30, 2023 |  | $ | (393.7) |  |  | $ | 42.9 |  |  | $ | (8.8) |  |  | $ | (359.6) |
Beginning balance, April 1, 2022 |  | $ | 13.0 |  |  | $ | (205.4) |  |  | $ | (10.2) |  |  | $ | (202.6) |
Other comprehensive income 9losss) before reclassifications |  | (297.1) |  |  | 168.5 |  |  | — |  |  | (128.6) |
Amounts reclassified from AOCI(3) |  | 2.3 |  |  | — |  |  | — |  |  | 2.3 |
Net current period other comprehensive income (loss) |  | (294.8) |  |  | 168.5 |  |  | — |  |  | (126.3) |
Ending balance, June 30, 2022 |  | $ | (281.8) |  |  | $ | (36.9) |  |  | $ | (10.2) |  |  | $ | (328.9) |
Beginning balance, January 1, 2023 |  | $ | (449.6) |  |  | $ | 59.0 |  |  | $ | (8.8) |  |  | $ | (399.4) |
Other comprehensive income (loss) before reclassifications |  | 42.4 |  |  | (16.1) |  |  | — |  |  | 26.3 |
Amounts reclassified from AOCI(2) |  | 13.5 |  |  | — |  |  | — |  |  | 13.5 |
Net current period other comprehensive income (loss) |  | 55.9 |  |  | (16.1) |  |  | — |  |  | 39.8 |
Ending balance, June 30, 2023 |  | $ | (393.7) |  |  | $ | 42.9 |  |  | $ | (8.8) |  |  | $ | (359.6) |
Beginning balance, January 1, 2022 |  | $ | 347.1 |  |  | $ | (386.9) |  |  | $ | (10.2) |  |  | $ | (50.0) |
Other comprehensive income (loss) before reclassifications |  | (633.0) |  |  | 350.0 |  |  | — |  |  | (283.0) |
Amounts reclassified from AOCI(2) |  | 4.1 |  |  | — |  |  | — |  |  | 4.1 |
Net current period other comprehensive income (loss) |  | (628.9) |  |  | 350.0 |  |  | — |  |  | (278.9) |
Ending balance, June 30, 2022 |  | $ | (281.8) |  |  | $ | (36.9) |  |  | $ | (10.2) |  |  | $ | (328.9) |
(1)All amounts are net of tax. (2)The pretax amounts reclassified from AOCI, $(14.6) million and $(17.0) million, are included in Net investment gains (losses) and the related income tax benefits, $(3.1) million and $(3.6) million, are included in income tax expense in the Consolidated Statements of Operations for the three and six months ended June 30, 2023, respectively. (3)The pretax amounts reclassified from AOCI, $(2.9) million and $(5.2) million, are included in Net investment gains (losses) and the related income tax benefits, $(0.6) million and $(1.1) million, are included in income tax expense in the Consolidated Statements of Operations for the three and six months ended June 30, 2022, respectively.

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