v3.26.1
Policyholder Account Balances - Schedule of Liabilities for Policyholder Account (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Dec. 31, 2024
Policyholder Account Balance [Line Items]      
Policyholder account balances $ 13,871 $ 13,843  
Fixed indexed annuity embedded derivatives      
Policyholder Account Balance [Line Items]      
Policyholder account balances 130 138  
Indexed universal life embedded derivatives      
Policyholder Account Balance [Line Items]      
Policyholder account balances 13 14  
Life insurance      
Policyholder Account Balance [Line Items]      
Policyholder account balances 6,970 6,993 $ 7,235
Fixed annuities      
Policyholder Account Balance [Line Items]      
Policyholder account balances 3,173 3,278 3,789
Variable annuities      
Policyholder Account Balance [Line Items]      
Policyholder account balances 411 420 $ 467
Funding agreements      
Policyholder Account Balance [Line Items]      
Policyholder account balances 167 0  
Additional insurance liabilities      
Policyholder Account Balance [Line Items]      
Policyholder account balances 2,993 2,986  
Other      
Policyholder Account Balance [Line Items]      
Policyholder account balances $ 14 $ 14