v3.25.4
Investments - Changes in Allowance for Credit Losses on Mortgage Loans on Real Estate (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Balance as of beginning-of-year $ 152    
Balance as of end-of-year 181 $ 152  
Commercial      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Balance as of beginning-of-year 99    
Balance as of end-of-year 112 99  
Residential      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Balance as of beginning-of-year 53    
Balance as of end-of-year 69 53  
Mortgage loans on real estate      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Balance as of beginning-of-year 152 114 $ 98
Additions (reductions) from provision for credit loss expense 37 88 16
Additions from purchases of PCD mortgage loans on real estate 0 0 0
Reductions for mortgage loans on real estate charged off (8) (50)  
Balance as of end-of-year 181 152 114
Credit loss (expense) reversal 1 1 (1)
Accrued interest receivable excluded from credit losses 109 94 67
Mortgage loans on real estate | Commercial      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Balance as of beginning-of-year 99 86 83
Additions (reductions) from provision for credit loss expense 21 63 3
Additions from purchases of PCD mortgage loans on real estate 0 0 0
Reductions for mortgage loans on real estate charged off (8) (50)  
Balance as of end-of-year 112 99 86
Mortgage loans on real estate | Residential      
Financing Receivable, Allowance for Credit Loss [Roll Forward]      
Balance as of beginning-of-year 53 28 15
Additions (reductions) from provision for credit loss expense 16 25 13
Additions from purchases of PCD mortgage loans on real estate 0 0 0
Reductions for mortgage loans on real estate charged off 0 0  
Balance as of end-of-year $ 69 $ 53 $ 28