v3.26.1
Long-duration Contracts - Market Risk Benefits (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Market Risk Benefit [Roll Forward]        
Balance, beginning of period, before changes in instrument-specific credit risk $ 4,716 $ 3,715    
Effect of changes in instrument-specific credit risk 224 176 $ 260 $ 157
Beginning Balance 4,456 3,558    
Issuances 193 201    
Interest accrual 99 93    
Attributed fees collected 213 190    
Benefit payments (49) (33)    
Effect of changes in interest rates (26) (26)    
Effect of changes in equity (62)      
Effect of actual policyholder behavior compared to expected behavior 66 53    
Balance at June 30, 2026 5,114 4,212    
Less: Reinsurance recoverable 88 50    
Balance at June 30, 2026, net of reinsurance 5,026 4,162    
Ending Balance 4,890 4,036    
Indexed annuities        
Market Risk Benefit [Roll Forward]        
Balance, beginning of period, before changes in instrument-specific credit risk 4,511 3,525    
Effect of changes in instrument-specific credit risk 220 173 255 154
Beginning Balance 4,256 3,371    
Issuances 193 201    
Interest accrual 95 89    
Attributed fees collected 212 189    
Benefit payments (47) (30)    
Effect of changes in interest rates (24) (29)    
Effect of changes in equity (62)      
Effect of actual policyholder behavior compared to expected behavior 64 53    
Balance at June 30, 2026 4,907 4,017    
Less: Reinsurance recoverable 88 50    
Balance at June 30, 2026, net of reinsurance 4,819 3,967    
Ending Balance 4,687 3,844    
Net amount at risk $ 18,262 $ 15,997    
Weighted-average attained age of contract holders (in years) 69 years 69 years    
Traditional deferred annuities        
Market Risk Benefit [Roll Forward]        
Balance, beginning of period, before changes in instrument-specific credit risk $ 205 $ 190    
Effect of changes in instrument-specific credit risk 4 3 $ 5 $ 3
Beginning Balance 200 187    
Issuances 0 0    
Interest accrual 4 4    
Attributed fees collected 1 1    
Benefit payments (2) (3)    
Effect of changes in interest rates (2) 3    
Effect of changes in equity 0      
Effect of actual policyholder behavior compared to expected behavior 2 0    
Balance at June 30, 2026 207 195    
Less: Reinsurance recoverable 0 0    
Balance at June 30, 2026, net of reinsurance 207 195    
Ending Balance 203 192    
Net amount at risk $ 423 $ 420    
Weighted-average attained age of contract holders (in years) 77 years 76 years