v3.26.1
Lending Activities - Credit quality of commercial mortgages (Details)
$ in Millions
Jun. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]    
Total $ 54,644 $ 55,208
Commercial Mortgages    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing receivable, excluding accrued interest, year one 1,904 4,818
Financing receivable, excluding accrued interest, year two 4,860 4,371
Financing receivable, excluding accrued interest, year three 4,010 1,993
Financing receivable, excluding accrued interest, year four 1,925 6,382
Financing receivable, excluding accrued interest, year five 6,029 2,498
Prior 18,202 16,947
Total $ 36,930 $ 37,009
Weighted average debt service coverage ratio 1.9 1.9
Weighted average loan-to-value ratio (as a percent) 61.00% 60.00%
Commercial Mortgages | Less than 65%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing receivable, excluding accrued interest, year one $ 1,754 $ 4,007
Financing receivable, excluding accrued interest, year two 3,904 3,806
Financing receivable, excluding accrued interest, year three 3,606 1,824
Financing receivable, excluding accrued interest, year four 1,805 3,731
Financing receivable, excluding accrued interest, year five 3,409 1,815
Prior 11,158 10,145
Total 25,636 25,328
Commercial Mortgages | 65% to 75%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing receivable, excluding accrued interest, year one 150 811
Financing receivable, excluding accrued interest, year two 956 565
Financing receivable, excluding accrued interest, year three 404 146
Financing receivable, excluding accrued interest, year four 97 2,275
Financing receivable, excluding accrued interest, year five 2,250 421
Prior 4,688 4,776
Total 8,545 8,994
Commercial Mortgages | 76% to 80%    
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 0 1
Financing receivable, excluding accrued interest, year five 0 42
Prior 705 549
Total 705 592
Commercial Mortgages | Greater than 80%    
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 23
Financing receivable, excluding accrued interest, year four 23 375
Financing receivable, excluding accrued interest, year five 370 220
Prior 1,651 1,477
Total 2,044 2,095
Greater than 1.2X | Commercial Mortgages    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing receivable, excluding accrued interest, year one 1,858 4,633
Financing receivable, excluding accrued interest, year two 4,676 4,154
Financing receivable, excluding accrued interest, year three 3,822 1,695
Financing receivable, excluding accrued interest, year four 1,618 5,876
Financing receivable, excluding accrued interest, year five 5,599 2,333
Prior 15,379 14,172
Total 32,952 32,863
1.00 - 1.20X | Commercial Mortgages    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing receivable, excluding accrued interest, year one 46 185
Financing receivable, excluding accrued interest, year two 184 217
Financing receivable, excluding accrued interest, year three 188 275
Financing receivable, excluding accrued interest, year four 284 464
Financing receivable, excluding accrued interest, year five 388 73
Prior 1,908 1,932
Total 2,998 3,146
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 0 23
Financing receivable, excluding accrued interest, year four 23 42
Financing receivable, excluding accrued interest, year five 42 92
Prior 915 843
Total $ 980 $ 1,000