v3.26.1
Insurance Liabilities (Future Policy Benefits - SOP) (Details) - ULSG - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Additional Liability, Long-Duration Insurance [Line Items]        
Additional Liability, Long-Duration Insurance, before Reinsurance, after Discount Rate Change $ 10,419 $ 9,336 $ 10,077 $ 8,986
Additional Liability, Long-Duration Insurance, Original Discount Rate, before Cash Flow and Reinsurance 10,664 9,588 10,298 9,277
Additional Liability, Long-Duration Insurance, Cumulative Increase (Decrease) of Actual Variance from Expected Experience     61 83
Additional Liability, Long-Duration Insurance, Original Discount Rate, before Reinsurance, after Cash Flow Change     $ 10,359 $ 9,360
Additional Liability, Long-Duration Insurance, Interest Income (Expense) 253 228    
Additional Liability, Long-Duration Insurance, Net Premium Collected 250 236    
Additional Liability, Long-Duration Insurance, Benefit Payment (198) (236)    
AOCI, Liability for Future Policy Benefit, before Tax (245) (252)    
Additional Liability, Long-Duration Insurance, Reinsurance Recoverable, after Allowance 1,844 1,567    
Additional Liability, Long-Duration Insurance, after Reinsurance $ 8,575 $ 7,769    
Additional Liability, Long-Duration Insurance, Weighted-Average Duration 6 years 7 months 6 days 6 years 7 months 6 days    
Additional Liability, Long-Duration Insurance, Weighted-Average Interest Accretion Rate 4.95% 4.95%    
Additional Liability, Long-Duration Insurance, Gross Premium Income $ 532 $ 533