v3.25.4
Lending Activities - Credit quality of commercial mortgages (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]    
Total $ 55,208 $ 53,539
Commercial Mortgages    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing receivable, excluding accrued interest, year one 4,818 4,539
Financing receivable, excluding accrued interest, year two 4,371 2,559
Financing receivable, excluding accrued interest, year three 1,993 7,279
Financing receivable, excluding accrued interest, year four 6,382 2,677
Financing receivable, excluding accrued interest, year five 2,498 1,461
Prior 16,947 17,280
Total 37,009 35,795
Less than 65% | Commercial Mortgages    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing receivable, excluding accrued interest, year one 4,007 3,726
Financing receivable, excluding accrued interest, year two 3,806 2,234
Financing receivable, excluding accrued interest, year three 1,824 4,915
Financing receivable, excluding accrued interest, year four 3,731 2,001
Financing receivable, excluding accrued interest, year five 1,815 701
Prior 10,145 10,903
Total 25,328 24,480
65% to 75% | Commercial Mortgages    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing receivable, excluding accrued interest, year one 811 813
Financing receivable, excluding accrued interest, year two 565 325
Financing receivable, excluding accrued interest, year three 146 2,084
Financing receivable, excluding accrued interest, year four 2,275 323
Financing receivable, excluding accrued interest, year five 421 556
Prior 4,776 3,841
Total 8,994 7,942
76% to 80% | Commercial Mortgages    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing receivable, excluding accrued interest, year one 0 0
Financing receivable, excluding accrued interest, year two 0 0
Financing receivable, excluding accrued interest, year three 0 0
Financing receivable, excluding accrued interest, year four 1 220
Financing receivable, excluding accrued interest, year five 42 0
Prior 549 592
Total 592 812
Greater than 80% | Commercial Mortgages    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing receivable, excluding accrued interest, year one 0 0
Financing receivable, excluding accrued interest, year two 0 0
Financing receivable, excluding accrued interest, year three 23 280
Financing receivable, excluding accrued interest, year four 375 133
Financing receivable, excluding accrued interest, year five 220 204
Prior 1,477 1,944
Total 2,095 2,561
Greater than 1.2X | Commercial Mortgages    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing receivable, excluding accrued interest, year one 4,633 3,997
Financing receivable, excluding accrued interest, year two 4,154 2,275
Financing receivable, excluding accrued interest, year three 1,695 6,429
Financing receivable, excluding accrued interest, year four 5,876 2,589
Financing receivable, excluding accrued interest, year five 2,333 1,247
Prior 14,172 14,763
Total 32,863 31,300
1.00 - 1.20X | Commercial Mortgages    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing receivable, excluding accrued interest, year one 185 542
Financing receivable, excluding accrued interest, year two 217 284
Financing receivable, excluding accrued interest, year three 275 825
Financing receivable, excluding accrued interest, year four 464 88
Financing receivable, excluding accrued interest, year five 73 214
Prior 1,932 1,413
Total 3,146 3,366
Less than 1.00X | Commercial Mortgages    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing receivable, excluding accrued interest, year one 0 0
Financing receivable, excluding accrued interest, year two 0 0
Financing receivable, excluding accrued interest, year three 23 25
Financing receivable, excluding accrued interest, year four 42 0
Financing receivable, excluding accrued interest, year five 92 0
Prior 843 1,104
Total $ 1,000 $ 1,129