v3.25.4
Mortgage Loans - Credit Quality Indicators - MF (Details) - Multifamily - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year $ 67,881 $ 50,350
One fiscal year before 54,475 53,930
Two fiscal years before 52,867 58,780
Three fiscal years before 56,208 63,361
Four fiscal years before 61,785 74,319
Prior 230,737 188,987
Total mortgage loans 523,953 489,727
Pass    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 67,503 49,867
One fiscal year before 52,368 51,194
Two fiscal years before 48,990 49,570
Three fiscal years before 49,486 59,687
Four fiscal years before 58,248 71,657
Prior 218,704 175,887
Total mortgage loans 495,299 457,862
Special Mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0 54
One fiscal year before 187 68
Two fiscal years before 124 165
Three fiscal years before 155 353
Four fiscal years before 246 162
Prior 793 280
Total mortgage loans 1,505 1,082
Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 378 429
One fiscal year before 1,920 2,626
Two fiscal years before 3,753 9,045
Three fiscal years before 6,567 3,259
Four fiscal years before 3,291 2,500
Prior 11,239 12,820
Total mortgage loans 27,148 30,679
Doubtful    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0 0
One fiscal year before 0 42
Two fiscal years before 0 0
Three fiscal years before 0 62
Four fiscal years before 0 0
Prior 1 0
Total mortgage loans 1 104
Current-year write-offs    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0 0
One fiscal year before 17 81
Two fiscal years before 111 192
Three fiscal years before 108 16
Four fiscal years before 66 27
Prior 168 189
Total mortgage loans $ 470 $ 505