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v3.25.2

Reinsurance - Summary of the Composition of Pool of Assets (Details) - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2025 | Dec. 31, 2024
Effects of Reinsurance [Line Items] |  |
Fixed maturity securities - available for sale | $ 68,860 | $ 64,006
Fixed maturity securities - fair value option | 722 | 745
Short-term investments | 10,102 | 14,462
Other | 4,552 | 4,735
Total assets | 165,971 | 161,322
Carrying Value |  |
Effects of Reinsurance [Line Items] |  |
Short-term investments | 4,746 | 4,673
Other | 14 | 15
Commercial mortgage loans |  |
Effects of Reinsurance [Line Items] |  |
Loans | 3,029 | 3,305
Fortitude Holdings |  |
Effects of Reinsurance [Line Items] |  |
Change in net unrealized gains (losses), gross | 29 | (35)
Change in net unrealized gains (losses), net of tax | 23 | (28)
Derivative asset, Fair value of collateral | 1 | 9
Derivative liability, Fair value of collateral | 35 | 2
Fortitude Holdings | Carrying Value |  |
Effects of Reinsurance [Line Items] |  |
Fixed maturity securities - available for sale | 1,831 | 1,918
Fixed maturity securities - fair value option | 718 | 721
Short-term investments | 35 | 15
Funds withheld investment assets | 3,053 | 3,104
Derivative assets, net | (1) | 1
Other | 68 | 115
Total assets | 3,120 | 3,220
Fortitude Holdings | Estimated Fair Value |  |
Effects of Reinsurance [Line Items] |  |
Fixed maturity securities - available for sale | 1,831 | 1,918
Fixed maturity securities - fair value option | 718 | 721
Short-term investments | 35 | 15
Funds withheld investment assets | 3,042 | 3,091
Derivative assets, net | (1) | 1
Other, fair value | 68 | 115
Total | 3,109 | 3,207
Fortitude Holdings | Commercial mortgage loans | Carrying Value |  |
Effects of Reinsurance [Line Items] |  |
Loans | 469 | 450
Fortitude Holdings | Commercial mortgage loans | Estimated Fair Value |  |
Effects of Reinsurance [Line Items] |  |
Loans, fair value | $ 458 | $ 437

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