Reinsurance - Reinsurance Recoverables (Details) - USD ($) $ in Millions |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Ceded Credit Risk [Line Items] | ||
| Total reinsurance recoverables | $ 1,927 | $ 1,998 |
| Hartford Life and Accident Insurance Company | ||
| Ceded Credit Risk [Line Items] | ||
| Total reinsurance recoverables | 1,119 | 1,314 |
| Lincoln Life & Annuity Company of New York | ||
| Ceded Credit Risk [Line Items] | ||
| Total reinsurance recoverables | 444 | 480 |
| Individual State Reinsurance Programs | ||
| Ceded Credit Risk [Line Items] | ||
| Total reinsurance recoverables | 189 | 61 |
| Fresenius Medical Care Reinsurance Company (Cayman) Ltd. | ||
| Ceded Credit Risk [Line Items] | ||
| Total reinsurance recoverables | 75 | 54 |
| Resolution Life Group Holdings Ltd. | ||
| Ceded Credit Risk [Line Items] | ||
| Total reinsurance recoverables | 33 | 35 |
| All Other | ||
| Ceded Credit Risk [Line Items] | ||
| Total reinsurance recoverables | $ 67 | $ 54 |