v3.26.1
Insurance - Schedule of Present Value of Expected Net Premium And Future Policy Benefits (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Term and Whole Life        
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward]        
Balance at beginning of period $ 138 $ 177    
Effect of cumulative changes in discount rate assumptions (beginning of period) (1) (1) $ (3) $ (2)
Beginning balance at original discount rate 135 175    
Effect of changes in cash flow assumptions     22 0
Effect of actual variances from expected experience     (9) (5)
Adjusted balance at beginning of period     148 170
Interest accretion 4 4    
Net premiums collected (10) (12)    
Ending balance at original discount rate 142 162    
Effect of changes in discount rate assumptions 1 1 3 2
Balance at ending of period 143 163    
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]        
Balance at beginning of period 329 378    
Effect of changes in discount rate assumptions (4) (3) (9) (5)
Beginning balance at original discount rate 320 373    
Effect of changes in cash flow assumptions     10 0
Effect of actual variances from expected experience     (7) (5)
Adjusted balance at beginning of period     323 368
Net issuances 2 2    
Interest accretion 9 10    
Benefit payments (21) (24)    
Ending balance at original discount rate 313 356    
Effect of changes in discount rate assumptions 4 3 9 5
Balance at ending of period 317 359    
Accidental Death and Disability Protection        
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward]        
Balance at beginning of period 28 33    
Effect of cumulative changes in discount rate assumptions (beginning of period) 0 1 0 0
Beginning balance at original discount rate 28 33    
Effect of changes in cash flow assumptions     0 0
Effect of actual variances from expected experience     (4) 2
Adjusted balance at beginning of period     24 35
Interest accretion 1 1    
Net premiums collected (2) (2)    
Ending balance at original discount rate 23 34    
Effect of changes in discount rate assumptions 0 (1) 0 0
Balance at ending of period 23 33    
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]        
Balance at beginning of period 90 96    
Effect of changes in discount rate assumptions 2 3 1 2
Beginning balance at original discount rate 91 98    
Effect of changes in cash flow assumptions     0 0
Effect of actual variances from expected experience     (6) 4
Adjusted balance at beginning of period     85 102
Net issuances 1 1    
Interest accretion 2 2    
Benefit payments (5) (6)    
Ending balance at original discount rate 83 99    
Effect of changes in discount rate assumptions (2) (3) $ (1) $ (2)
Balance at ending of period $ 81 $ 96