Investments - Schedule of Rollforward of Credit Loss Allowance for Mortgage Loans (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Mortgage loans | ||||
| Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward] | ||||
| Beginning balance | $ (12) | $ (11) | $ (12) | $ (11) |
| Net (increases) decreases related to credit losses | 0 | 1 | 0 | 1 |
| Write-offs | 0 | 0 | 0 | 0 |
| Ending balance | (12) | (10) | (12) | (10) |
| Commercial | ||||
| Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward] | ||||
| Ending balance | (11) | (10) | (11) | (10) |
| Residential | ||||
| Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward] | ||||
| Ending balance | $ (1) | $ 0 | $ (1) | $ 0 |