v3.26.1
Lending Activities - Credit Quality Performance Indicators for Commercial Mortgages (Details)
$ in Millions
Jun. 30, 2026
USD ($)
loan
Dec. 31, 2025
USD ($)
loan
Financing Receivable, Credit Quality Indicator [Line Items]    
Allowance for credit losses $ 37,714 $ 37,747
Commercial mortgage and other loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Number of Loans | loan 132 145
Total $ 2,263 $ 2,495
Allowance for credit losses $ 78 $ 111
Percent of Total 100.00% 100.00%
Percentage of total, allowance for credit losses 3.00% 4.00%
Commercial mortgage and other loans | In good standing    
Financing Receivable, Credit Quality Indicator [Line Items]    
Number of Loans | loan 128 140
Total $ 2,153 $ 2,396
Percent of Total 95.00% 96.00%
Commercial mortgage and other loans | 90 days or less delinquent    
Financing Receivable, Credit Quality Indicator [Line Items]    
Number of Loans | loan 1 1
Total $ 66 $ 9
Percent of Total 3.00% 0.00%
Commercial mortgage and other loans | >90 days delinquent or in process of foreclosure    
Financing Receivable, Credit Quality Indicator [Line Items]    
Number of Loans | loan 3 4
Total $ 44 $ 90
Percent of Total 2.00% 4.00%
Commercial mortgage and other loans | Apartments    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total $ 729 $ 793
Allowance for credit losses 3 2
Commercial mortgage and other loans | Apartments | In good standing    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 729 793
Commercial mortgage and other loans | Apartments | 90 days or less delinquent    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Commercial mortgage and other loans | Apartments | >90 days delinquent or in process of foreclosure    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Commercial mortgage and other loans | Offices    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 875 986
Allowance for credit losses 54 62
Commercial mortgage and other loans | Offices | In good standing    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 788 947
Commercial mortgage and other loans | Offices | 90 days or less delinquent    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 66 9
Commercial mortgage and other loans | Offices | >90 days delinquent or in process of foreclosure    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 21 30
Commercial mortgage and other loans | Retail    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 314 357
Allowance for credit losses 10 37
Commercial mortgage and other loans | Retail | In good standing    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 291 297
Commercial mortgage and other loans | Retail | 90 days or less delinquent    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Commercial mortgage and other loans | Retail | >90 days delinquent or in process of foreclosure    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 23 60
Commercial mortgage and other loans | Industrial    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 127 158
Allowance for credit losses 0 0
Commercial mortgage and other loans | Industrial | In good standing    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 127 158
Commercial mortgage and other loans | Industrial | 90 days or less delinquent    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Commercial mortgage and other loans | Industrial | >90 days delinquent or in process of foreclosure    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Commercial mortgage and other loans | Hotel    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 164 191
Allowance for credit losses 11 10
Commercial mortgage and other loans | Hotel | In good standing    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 164 191
Commercial mortgage and other loans | Hotel | 90 days or less delinquent    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Commercial mortgage and other loans | Hotel | >90 days delinquent or in process of foreclosure    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Commercial mortgage and other loans | Others    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 54 10
Allowance for credit losses 0 0
Commercial mortgage and other loans | Others | In good standing    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 54 10
Commercial mortgage and other loans | Others | 90 days or less delinquent    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Commercial mortgage and other loans | Others | >90 days delinquent or in process of foreclosure    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total $ 0 $ 0