Policyholder Account Balances, Future Policy Benefits and Claims - Change in Unearned Income (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Deferred Income [Roll Forward] | ||
| Beginning balance | $ 570 | $ 489 |
| Deferral of revenue | 127 | 121 |
| Amortization | (46) | (40) |
| Ending balance | 651 | 570 |
| Universal Life Insurance | ||
| Deferred Income [Roll Forward] | ||
| Beginning balance | 26 | 27 |
| Deferral of revenue | 1 | 0 |
| Amortization | (1) | (1) |
| Ending balance | 26 | 26 |
| Variable Universal Life Insurance | ||
| Deferred Income [Roll Forward] | ||
| Beginning balance | 249 | 196 |
| Deferral of revenue | 79 | 70 |
| Amortization | (21) | (17) |
| Ending balance | 307 | 249 |
| Indexed Universal Life Insurance | ||
| Deferred Income [Roll Forward] | ||
| Beginning balance | 295 | 266 |
| Deferral of revenue | 47 | 51 |
| Amortization | (24) | (22) |
| Ending balance | $ 318 | $ 295 |