Commitments and Contingencies - Schedule of Unfunded Commitments (Details) $ in Millions |
Sep. 30, 2026
USD ($)
|
|---|---|
| Other fixed maturity securities, AFS | |
| Other Commitments | |
| Unfunded investment commitment | $ 244 |
| Commercial mortgage loans | |
| Other Commitments | |
| Unfunded investment commitment | 399 |
| Residential mortgage loans | |
| Other Commitments | |
| Unfunded investment commitment | 414 |
| Other assets | |
| Other Commitments | |
| Unfunded investment commitment | 78 |
| Other long-term investments | |
| Other Commitments | |
| Unfunded investment commitment | 186 |
| Limited partnerships | |
| Other Commitments | |
| Unfunded investment commitment | 1,379 |
| Asset-backed lending | |
| Other Commitments | |
| Unfunded investment commitment | 92 |
| Fixed maturity securities, asset-backed securities | |
| Other Commitments | |
| Unfunded investment commitment | 831 |
| Direct Lending | |
| Other Commitments | |
| Unfunded investment commitment | 895 |
| Total | |
| Other Commitments | |
| Unfunded investment commitment | $ 4,518 |