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SHAREHOLDERS' EQUITY (Tables) | 9 Months Ended
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Sep. 30, 2024
Equity [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) | Accumulated other comprehensive income (loss), included in shareholders' equity as of September 30, 2024 and December 31, 2023, is comprised of the following (dollars in millions):
| September 30, 2024 |  | December 31, 2023
Net unrealized losses on investments having no allowance for credit losses | $ | (803.0) |  |  | $ | (1,235.2) |
Unrealized losses on investments with an allowance for credit losses | (699.8) |  |  | (931.0) |
Change in discount rates for liability for future policy benefits | 63.4 |  |  | 133.4 |
Change in instrument-specific credit risk for market risk benefits | 2.1 |  |  | 4.8 |
Deferred income tax assets | 321.3 |  |  | 451.2 |
Accumulated other comprehensive loss | $ | (1,116.0) |  |  | $ | (1,576.8) |

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