v3.26.1
Mortgage Loans - Credit Quality Indicators - MF (Details) - Multifamily - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year $ 6,722 $ 67,881
One fiscal year before 77,814 54,475
Two fiscal years before 54,388 52,867
Three fiscal years before 52,509 56,208
Four fiscal years before 55,575 61,785
Prior 284,705 230,737
Total mortgage loans 531,713 523,953
Pass    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 6,722 67,503
One fiscal year before 77,695 52,368
Two fiscal years before 52,044 48,990
Three fiscal years before 48,418 49,486
Four fiscal years before 48,543 58,248
Prior 269,125 218,704
Total mortgage loans 502,547 495,299
Special Mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0 0
One fiscal year before 14 187
Two fiscal years before 196 124
Three fiscal years before 82 155
Four fiscal years before 156 246
Prior 1,183 793
Total mortgage loans 1,631 1,505
Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0 378
One fiscal year before 105 1,920
Two fiscal years before 2,148 3,753
Three fiscal years before 4,009 6,567
Four fiscal years before 6,876 3,291
Prior 14,397 11,239
Total mortgage loans 27,535 27,148
Doubtful    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0 0
One fiscal year before 0 0
Two fiscal years before 0 0
Three fiscal years before 0 0
Four fiscal years before 0 0
Prior 0 1
Total mortgage loans 0 1
Current-year write-offs    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0 0
One fiscal year before 0 17
Two fiscal years before 19 111
Three fiscal years before 34 108
Four fiscal years before 76 66
Prior 114 168
Total mortgage loans $ 243 $ 470