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v3.25.3

Investments - Narrative (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 USD ($) loan | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) loan | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($) loan
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Investment, non-income producing, greater than twelve months | $ 33,000,000 |  | $ 33,000,000 |  | $ 32,000,000
Accrued interest receivable | 522,000,000 |  | 522,000,000 |  | 476,000,000
FHLB collateral pledged | 4,475,000,000 |  | 4,475,000,000 |  | 4,289,000,000
Fixed maturity securities, available-for-sale securities, allowance for credit losses | 102,000,000 |  | 102,000,000 |  | $ 67,000,000
Allowance for credit loss for securities in an unrealized loss position | $ 0 |  | $ 0 |  |
Commercial mortgage loans, percentage of investments | 5.00% |  | 5.00% |  | 4.00%
DSC ratio, amortization period |  |  | 25 years |  |
Amortized cost of loans on non-accrual | $ 82,000,000 |  | $ 82,000,000 |  | $ 94,000,000
Loans in process of foreclosure | 72,000,000 |  | 72,000,000 |  | $ 81,000,000
Gross investment income | 924,000,000 | $ 891,000,000 | 2,593,000,000 | $ 2,526,000,000 |
Reinsurance agreement, recognized gains (losses) | (77,000,000) | 177,000,000 | (176,000,000) | (186,000,000) |
Funds Withheld, Reinsurance Agreements |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Gross investment income | $ 219,000,000 | $ 77,000,000 | $ 592,000,000 | $ 463,000,000 |
United States |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Residential mortgage loans, location percentage |  |  | 100.00% |  |
Commercial Mortgage |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Mortgage loans delinquent in principal or interest | loan | 1 |  | 1 |  | 1
Amortized cost of loans on non-accrual | $ 10,000,000 |  | $ 10,000,000 |  | $ 9,000,000
Interest receivable | $ 11,000,000 |  | $ 11,000,000 |  | $ 8,000,000
Commercial Mortgage | Mortgage loans |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Allowance for expected credit loss, probability of loss/default model, projected loss, using reasonable forecast period |  |  | 2 years |  |
Allowance for credit loss, probability of loss/default, using market historical loss experience, period |  |  | 3 years |  |
Residential Mortgage |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Residential mortgage loans, percentage of total investments | 6.00% |  | 6.00% |  | 5.00%
Charge offs |  |  | $ 0 |  | $ 0
Amortized cost of loans on non-accrual | $ 72,000,000 |  | 72,000,000 |  | 85,000,000
Interest receivable | 36,000,000 |  | $ 36,000,000 |  | 28,000,000
Residential Mortgage | Mortgage loans |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Allowance for expected credit loss, probability of loss/default model, projected loss, using reasonable forecast period |  |  | 2 years |  |
Allowance for credit loss, probability of loss/default, using market historical loss experience, period |  |  | 3 years |  |
Fixed maturity securities, available-for-sale |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Assets held by insurance regulators | $ 154,000,000 |  | $ 154,000,000 |  | $ 997,000,000

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