v3.26.1
Investments - Commercial Mortgage Loans (Details) - Real Estate Loan - Commercial Portfolio Segment
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
Schedule of Investments [Line Items]    
Carrying value, after allowance for credit loss $ 1,199 $ 1,233
Weighted Average    
Schedule of Investments [Line Items]    
Average Debt Service Coverage Ratio 1.67 1.72
Average Loan-to-Value Ratio 72.00% 71.00%
Below 60%    
Schedule of Investments [Line Items]    
Carrying value, after allowance for credit loss $ 379 $ 355
Below 60% | Weighted Average    
Schedule of Investments [Line Items]    
Average Debt Service Coverage Ratio 2.08 2.13
60% to 79%    
Schedule of Investments [Line Items]    
Carrying value, after allowance for credit loss $ 634 $ 694
60% to 79% | Weighted Average    
Schedule of Investments [Line Items]    
Average Debt Service Coverage Ratio 1.72 1.81
80% to 100%    
Schedule of Investments [Line Items]    
Carrying value, after allowance for credit loss $ 186 $ 184
80% to 100% | Weighted Average    
Schedule of Investments [Line Items]    
Average Debt Service Coverage Ratio 0.84 0.79