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Net Investment Income And Investment Related Gains (Losses) (Tables) | 12 Months Ended
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Dec. 31, 2024
Investments, Debt and Equity Securities [Abstract] |
Schedule of Net Investment Income | Net investment income is shown below:
| Successor |  |  | Predecessor
| Year Ended December 31, |  | Period From May 25 to December 31, |  |  | Period From January 1 to May 24,
| 2024 |  | 2023 |  | 2022 |  |  | 2022
| (Dollars in millions)
Available-for-sale fixed maturity securities | $ | 1,913 |  |  | $ | 702 |  |  | $ | 336 |  |  |  | $ | 223 |
Equity securities | 31 |  |  | 8 |  |  | 2 |  |  |  | 1 |
Mortgage loans | 623 |  |  | 300 |  |  | 181 |  |  |  | 123 |
Private loans | 216 |  |  | 16 |  |  | — |  |  |  | — |
Real estate | 50 |  |  | 13 |  |  | 5 |  |  |  | 6 |
Real estate partnerships | 23 |  |  | 29 |  |  | 55 |  |  |  | 105 |
Investment funds | 307 |  |  | 81 |  |  | 34 |  |  |  | 35 |
Policy loans | 18 |  |  | — |  |  | — |  |  |  | — |
Short-term investments | 204 |  |  | 187 |  |  | 58 |  |  |  | 4 |
Other | 243 |  |  | 52 |  |  | 29 |  |  |  | 16 |
Total net investment income | $ | 3,628 |  |  | $ | 1,388 |  |  | $ | 700 |  |  |  | $ | 513 |
Schedule of Net Unrealized and Realized Investment Gains (Losses) | Net unrealized and realized investment gains (losses) are shown below:
| Successor |  |  | Predecessor
| Year Ended December 31, |  | Period From May 25 to December 31, |  |  | Period From January 1 to May 24,
| 2024 |  | 2023 |  | 2022 |  |  | 2022
| (Dollars in millions)
Available-for-sale fixed maturity securities | $ | (185) |  |  | $ | (70) |  |  | $ | (59) |  |  |  | $ | (13) |
Equity securities | (48) |  |  | 97 |  |  | 49 |  |  |  | (13) |
Mortgage loans | (83) |  |  | (26) |  |  | (35) |  |  |  | 4 |
Private loans | (28) |  |  | (9) |  |  | — |  |  |  | — |
Investment real estate | (11) |  |  | (4) |  |  | 7 |  |  |  | 11 |
Real estate partnerships | (1) |  |  | — |  |  | — |  |  |  | — |
Investments funds | (21) |  |  | — |  |  | — |  |  |  | — |
Short-term investments and other invested assets | 31 |  |  | 11 |  |  | (1) |  |  |  | 4 |
Total investment related gains (losses), net | $ | (346) |  |  | $ | (1) |  |  | $ | (39) |  |  |  | $ | (7) |

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