v3.25.4
Lending Activities - Credit quality performance indicators for commercial mortgages (Details)
$ in Millions
Dec. 31, 2025
USD ($)
loan
Dec. 31, 2024
USD ($)
loan
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]        
Total $ 55,208 $ 53,539    
Allowance for credit losses $ 727 $ 771 $ 698 $ 600
Commercial Mortgages        
Financing Receivable, Credit Quality Indicator [Line Items]        
Number of Loans | loan 581 595    
Total $ 37,009 $ 35,795    
Allowance for credit losses $ 594 $ 626 $ 614 $ 531
Percent of Total 100.00% 100.00%    
Percentage of total, allowance for credit losses 2.00% 2.00%    
Commercial Mortgages | In good standing        
Financing Receivable, Credit Quality Indicator [Line Items]        
Number of Loans | loan 576 591    
Total $ 36,455 $ 35,155    
Percent of Total 99.00% 98.00%    
Commercial Mortgages | 90 days or less delinquent        
Financing Receivable, Credit Quality Indicator [Line Items]        
Number of Loans | loan 1 2    
Total $ 15 $ 343    
Percent of Total 0.00% 1.00%    
Commercial Mortgages | >90 days delinquent or in process of foreclosure        
Financing Receivable, Credit Quality Indicator [Line Items]        
Number of Loans | loan 4 2    
Total $ 539 $ 297    
Percent of Total 1.00% 1.00%    
Commercial Mortgages | Apartments        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total $ 13,689 $ 14,188    
Allowance for credit losses 28 36    
Commercial Mortgages | Apartments | In good standing        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 13,688 14,188    
Commercial Mortgages | Apartments | 90 days or less delinquent        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 0 0    
Commercial Mortgages | Apartments | >90 days delinquent or in process of foreclosure        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 1 0    
Commercial Mortgages | Offices        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 8,042 8,359    
Allowance for credit losses 360 430    
Commercial Mortgages | Offices | In good standing        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 7,675 7,905    
Commercial Mortgages | Offices | 90 days or less delinquent        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 15 343    
Commercial Mortgages | Offices | >90 days delinquent or in process of foreclosure        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 352 111    
Commercial Mortgages | Offices | >90 days delinquent or in process of foreclosure | Fortitude RE Funds Withheld Assets        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 11      
Commercial Mortgages | Retail        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 4,300 4,085    
Allowance for credit losses 164 103    
Commercial Mortgages | Retail | In good standing        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 4,114 3,899    
Commercial Mortgages | Retail | 90 days or less delinquent        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 0 0    
Commercial Mortgages | Retail | >90 days delinquent or in process of foreclosure        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 186 186    
Commercial Mortgages | Retail | >90 days delinquent or in process of foreclosure | Fortitude RE Funds Withheld Assets        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 21      
Commercial Mortgages | Industrial        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 8,163 6,763    
Allowance for credit losses 14 28    
Commercial Mortgages | Industrial | In good standing        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 8,163 6,763    
Commercial Mortgages | Industrial | 90 days or less delinquent        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 0 0    
Commercial Mortgages | Industrial | >90 days delinquent or in process of foreclosure        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 0 0    
Commercial Mortgages | Hotel        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 2,037 1,947    
Allowance for credit losses 27 29    
Commercial Mortgages | Hotel | In good standing        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 2,037 1,947    
Commercial Mortgages | Hotel | 90 days or less delinquent        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 0 0    
Commercial Mortgages | Hotel | >90 days delinquent or in process of foreclosure        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 0 0    
Commercial Mortgages | Others        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 778 453    
Allowance for credit losses 1 0    
Commercial Mortgages | Others | In good standing        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 778 453    
Commercial Mortgages | Others | 90 days or less delinquent        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total 0 0    
Commercial Mortgages | Others | >90 days delinquent or in process of foreclosure        
Financing Receivable, Credit Quality Indicator [Line Items]        
Total $ 0 $ 0