v3.26.1
Lending Activities - Credit quality of commercial mortgages (Details)
$ in Millions
Mar. 31, 2026
USD ($)
Dec. 31, 2025
USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]    
Total $ 55,106 $ 55,208
Commercial Mortgages    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing receivable, excluding accrued interest, year one 1,063 4,818
Financing receivable, excluding accrued interest, year two 4,832 4,371
Financing receivable, excluding accrued interest, year three 4,119 1,993
Financing receivable, excluding accrued interest, year four 1,917 6,382
Financing receivable, excluding accrued interest, year five 6,138 2,498
Prior 18,777 16,947
Total $ 36,846 $ 37,009
Weighted average debt service coverage ratio 1.9 1.9
Commercial Mortgages | Less than 65%    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing receivable, excluding accrued interest, year one $ 913 $ 4,007
Financing receivable, excluding accrued interest, year two 4,025 3,806
Financing receivable, excluding accrued interest, year three 3,560 1,824
Financing receivable, excluding accrued interest, year four 1,798 3,731
Financing receivable, excluding accrued interest, year five 3,582 1,815
Prior 11,525 10,145
Total 25,403 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 807 565
Financing receivable, excluding accrued interest, year three 559 146
Financing receivable, excluding accrued interest, year four 96 2,275
Financing receivable, excluding accrued interest, year five 1,874 421
Prior 4,983 4,776
Total 8,469 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 310 42
Prior 588 549
Total 898 592
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 372 220
Prior 1,681 1,477
Total 2,076 2,095
Greater than 1.2X | Commercial Mortgages    
Financing Receivable, Credit Quality Indicator [Line Items]    
Financing receivable, excluding accrued interest, year one 1,017 4,633
Financing receivable, excluding accrued interest, year two 4,648 4,154
Financing receivable, excluding accrued interest, year three 3,932 1,695
Financing receivable, excluding accrued interest, year four 1,615 5,876
Financing receivable, excluding accrued interest, year five 5,631 2,333
Prior 15,880 14,172
Total 32,723 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 187 275
Financing receivable, excluding accrued interest, year four 279 464
Financing receivable, excluding accrued interest, year five 465 73
Prior 1,963 1,932
Total 3,124 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 934 843
Total $ 999 $ 1,000