v3.25.4
Policyholder Account Balances, Future Policy Benefits and Claims - Additional Liabilities (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Additional Liability, Long-Duration Insurance [Roll Forward]    
Beginning balance $ 1,389 $ 1,321
Interest accrual 46 44
Benefit accrual 144 144
Benefit payments (102) (87)
Effect of actual variances from expected experience 12 (4)
Impact of change in net unrealized (gains) losses on securities 11 (29)
Ending balance 1,500 1,389
Universal Life Insurance    
Additional Liability, Long-Duration Insurance [Roll Forward]    
Beginning balance 1,301 1,225
Interest accrual 40 37
Benefit accrual 132 133
Benefit payments (84) (69)
Effect of actual variances from expected experience 11 (2)
Impact of change in net unrealized (gains) losses on securities 9 (23)
Ending balance $ 1,409 $ 1,301
Weighted average interest accretion rate 2.90% 3.00%
Weighted average discount rate 3.10% 3.20%
Weighted average duration of reserves (in years) 9 years 10 years
Variable Universal Life Insurance    
Additional Liability, Long-Duration Insurance [Roll Forward]    
Beginning balance $ 80 $ 81
Interest accrual 5 6
Benefit accrual 10 8
Benefit payments (14) (13)
Effect of actual variances from expected experience (1) (1)
Impact of change in net unrealized (gains) losses on securities 0 (1)
Ending balance $ 80 $ 80
Weighted average interest accretion rate 6.80% 7.00%
Weighted average discount rate 7.10% 7.10%
Weighted average duration of reserves (in years) 8 years 8 years
Other Life Insurance    
Additional Liability, Long-Duration Insurance [Roll Forward]    
Beginning balance $ 8 $ 15
Interest accrual 1 1
Benefit accrual 2 3
Benefit payments (4) (5)
Effect of actual variances from expected experience 2 (1)
Impact of change in net unrealized (gains) losses on securities 2 (5)
Ending balance $ 11 $ 8
Weighted average interest accretion rate 3.80% 3.90%
Weighted average discount rate 3.90% 4.00%
Weighted average duration of reserves (in years) 7 years 6 years