Future Contract Benefits - Summary of Discounted and Undiscounted Expected Future Gross Premiums and Expected Future Benefit Payments (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Payout Annuities | ||
| Undiscounted | ||
| Expected future gross premiums | $ 0 | $ 0 |
| Expected future benefit payments | 3,271 | 3,427 |
| Discounted | ||
| Expected future gross premiums | 0 | 0 |
| Expected future benefit payments | 2,036 | 2,008 |
| Traditional Life | ||
| Undiscounted | ||
| Expected future gross premiums | 12,735 | 13,498 |
| Expected future benefit payments | 12,655 | 13,857 |
| Discounted | ||
| Expected future gross premiums | 8,869 | 9,075 |
| Expected future benefit payments | $ 8,807 | $ 9,255 |