v3.26.1
Reserve for Future Policy Benefits (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Liabilities for Guarantees on Long-Duration Contracts [Line Items]        
Liability for Future Policy Benefit, before Reinsurance $ 447 $ 443 $ 444  
Fixed Annuity        
Liabilities for Guarantees on Long-Duration Contracts [Line Items]        
Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change 119 124 123 $ 128
AOCI, Liability for Future Policy Benefit, Expected Future Policy Benefit, before Tax 1 1 3 0
Liability for Future Policy Benefit, Expected Future Policy Benefit, Original Discount Rate, before Cash Flow and Reinsurance 118 123 120 128
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) from Cash Flow Change     0 0
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) of Actual Variance from Expected Experience     2 (2)
Liability for Future Policy Benefit, Expected Future Benefit, Original Discount Rate, before Reinsurance, after Cash Flow Change     122 126
Liability for Future Policy Benefit, Expected Future Policy Benefit, Issuance 0 0    
Liability for Future Policy Benefit, Expected Future Policy Benefit, Interest Expense 2 3    
Liability for Future Policy Benefit, Expected Future Policy Benefit, Benefit Payment (6) (6)    
Liability for Future Policy Benefit, before Reinsurance $ 119 $ 124    
Liability for Future Policy Benefit, Weighted-Average Duration 9 years 3 months 18 days 9 years 3 months 18 days    
Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance $ 232 $ 242    
Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance $ 0 $ 0    
Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate 5.60% 5.60%    
Liability for Future Policy Benefit, Current Weighted-Average Discount Rate 5.50% 5.40%    
Life Conversions        
Liabilities for Guarantees on Long-Duration Contracts [Line Items]        
Liability for Future Policy Benefit, Expected Future Gross Premium, Discounted, before Reinsurance $ 41 $ 43 43 45
Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change 100 104 104 106
AOCI, Liability for Future Policy Benefit, Expected Future Policy Benefit, before Tax (13) (15) (15) (15)
Liability for Future Policy Benefit, Expected Future Policy Benefit, Original Discount Rate, before Cash Flow and Reinsurance 113 119 119 121
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) from Cash Flow Change     0 0
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) of Actual Variance from Expected Experience     1 3
Liability for Future Policy Benefit, Expected Future Benefit, Original Discount Rate, before Reinsurance, after Cash Flow Change     120 124
Liability for Future Policy Benefit, Expected Future Policy Benefit, Issuance 4 0    
Liability for Future Policy Benefit, Expected Future Policy Benefit, Interest Expense 8 11    
Liability for Future Policy Benefit, Expected Future Policy Benefit, Benefit Payment (19) (16)    
Liability for Future Policy Benefit, before Reinsurance $ 59 $ 61    
Liability for Future Policy Benefit, Weighted-Average Duration 10 years 4 months 24 days 11 years    
Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance $ 180 $ 192    
Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance $ 96 $ 102    
Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate 4.30% 4.30%    
Liability for Future Policy Benefit, Current Weighted-Average Discount Rate 5.60% 5.60%    
Paid Up Life        
Liabilities for Guarantees on Long-Duration Contracts [Line Items]        
Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change $ 168 $ 163 165 168
AOCI, Liability for Future Policy Benefit, Expected Future Policy Benefit, before Tax (25) (28) (24) (33)
Liability for Future Policy Benefit, Expected Future Policy Benefit, Original Discount Rate, before Cash Flow and Reinsurance 193 191 189 201
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) from Cash Flow Change     0 0
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) of Actual Variance from Expected Experience     (1) (1)
Liability for Future Policy Benefit, Expected Future Benefit, Original Discount Rate, before Reinsurance, after Cash Flow Change     $ 188 $ 200
Liability for Future Policy Benefit, Expected Future Policy Benefit, Issuance 12 0    
Liability for Future Policy Benefit, Expected Future Policy Benefit, Interest Expense 3 3    
Liability for Future Policy Benefit, Expected Future Policy Benefit, Benefit Payment (10) (12)    
Liability for Future Policy Benefit, before Reinsurance $ 168 $ 163    
Liability for Future Policy Benefit, Weighted-Average Duration 5 years 9 months 18 days 6 years 6 months    
Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance $ 246 $ 249    
Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance $ 0 $ 0    
Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate 3.00% 2.90%    
Liability for Future Policy Benefit, Current Weighted-Average Discount Rate 5.10% 5.00%    
Deferred Profit Liability        
Liabilities for Guarantees on Long-Duration Contracts [Line Items]        
Liability for Future Policy Benefit, before Reinsurance $ 16 $ 19    
Long-Duration Insurance, Other        
Liabilities for Guarantees on Long-Duration Contracts [Line Items]        
Liability for Future Policy Benefit, before Reinsurance $ 85 $ 76