v3.26.1
Future Contract Benefits - Summary of Changes in Present Values of LFPB (Group Protection) (Details) - Group Protection - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Present Value of Expected Future Policy Benefits        
Balance as of beginning-of-year $ 5,836 $ 5,628    
Effect of cumulative changes in discount rate assumptions     $ (363) $ (550)
Beginning balance at original discount rate 6,199 6,178    
Effect of actual variances from expected experience     $ (111) $ (178)
Adjusted balance as of beginning-of-year 6,088 6,000    
Issuances 753 808    
Interest accrual 108 100    
Benefit payments (748) (724)    
Ending balance at original discount rate 6,201 6,184    
Effect of cumulative changes in discount rate assumptions (420) (425)    
Balance as of end-of-period 5,781 5,759    
Less: Reinsurance recoverables 121 122    
Net balance as of end-of-period, net of reinsurance $ 5,660 $ 5,637    
Weighted-average duration of future policyholder benefit liability 5 years 5 years