v3.26.1
Market Risk Benefits (Balances and Changes of 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 [Line Items]        
Market Risk Benefit, after Increase (Decrease) from Instrument-Specific Credit Risk $ 213 $ 216    
Market Risk Benefit, Net Amount at Risk 232   $ 234  
Insurance, Other | Americas [Member] | Other Segments        
Market Risk Benefit [Line Items]        
Market Risk Benefit, after Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change 213 216 215 $ 206
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change 213 221 $ 217 $ 209
Market Risk Benefit, Interest Expense 3 4    
Market Risk Benefit, Attributed Fee Collected 11 12    
Market Risk Benefit, Increase (Decrease) from Interest Rate Change (8) 10    
Market Risk Benefit, Increase (Decrease) from Equity Market Change (19) (16)    
Market Risk Benefit, Increase (Decrease) from Volatility 2 1    
Market Risk Benefit, Increase (Decrease) from Other Assumption 1 (8)    
Market Risk Benefit, Increase (Decrease) from Actual Policyholder Behavior Different from Expected 6 9    
AOCI, Market Risk Benefit, Instrument-Specific Credit Risk, before Tax 0 (5)    
Market Risk Benefit, after Increase (Decrease) from Instrument-Specific Credit Risk 213 216    
Market Risk Benefit, Reinsurance Recoverable, after Allowance 0 0    
Market Risk Benefit, Net Amount at Risk $ 1,184 $ 1,278    
Net Amount at Risk by Product and Guarantee, Weighted Average Attained Age 73 years 72 years