v3.26.3
Mortgage Loans - Amortized Cost Basis of Held-for-Investment Loans by Payment Status (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Financing Receivable, Past Due [Line Items]    
Financing Receivable, before Allowance for Credit Loss $ 3,356,923 $ 3,291,359
Financing Receivable, Nonaccrual, No Allowance 1,778 832
Financing Receivable, 90 Days or More Past Due, Still Accruing 0 0
Mortgage Loans in Process of Foreclosure, Amount 4,700 4,000
Single-family    
Financing Receivable, Past Due [Line Items]    
Financing Receivable, before Allowance for Credit Loss 3,170,130 3,145,766
Financing Receivable, Nonaccrual, No Allowance 1,630 700
20- and 30-year or more, amortizing fixed-rate    
Financing Receivable, Past Due [Line Items]    
Financing Receivable, before Allowance for Credit Loss 2,881,760 2,844,612
Financing Receivable, Nonaccrual, No Allowance 1,590 662
15-year or less, amortizing fixed-rate    
Financing Receivable, Past Due [Line Items]    
Financing Receivable, before Allowance for Credit Loss 248,654 268,681
Financing Receivable, Nonaccrual, No Allowance 9 7
Adjustable-rate and other    
Financing Receivable, Past Due [Line Items]    
Financing Receivable, before Allowance for Credit Loss 39,716 32,473
Financing Receivable, Nonaccrual, No Allowance 31 31
Multifamily    
Financing Receivable, Past Due [Line Items]    
Financing Receivable, before Allowance for Credit Loss 186,793 145,593
Financing Receivable, Nonaccrual, No Allowance 148 132
Current    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 3,300,422 3,237,133
Current | Single-family    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 3,114,018 3,091,789
Current | 20- and 30-year or more, amortizing fixed-rate    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 2,828,071 2,793,168
Current | 15-year or less, amortizing fixed-rate    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 246,817 266,741
Current | Adjustable-rate and other    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 39,130 31,880
Current | Multifamily    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 186,404 145,344
One Month Past Due    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 30,093 28,830
One Month Past Due | Single-family    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 29,941 28,773
One Month Past Due | 20- and 30-year or more, amortizing fixed-rate    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 28,483 27,286
One Month Past Due | 15-year or less, amortizing fixed-rate    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 1,168 1,196
One Month Past Due | Adjustable-rate and other    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 290 291
One Month Past Due | Multifamily    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 152 57
Two Months Past Due    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 8,220 8,257
Two Months Past Due | Single-family    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 8,182 8,255
Two Months Past Due | 20- and 30-year or more, amortizing fixed-rate    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 7,849 7,892
Two Months Past Due | 15-year or less, amortizing fixed-rate    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 246 276
Two Months Past Due | Adjustable-rate and other    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 87 87
Two Months Past Due | Multifamily    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 38 2
Three Months or More Past Due, or in Foreclosure(2)    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 18,188 17,139
Three Months or More Past Due, or in Foreclosure(2) | Single-family    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 17,989 16,949
Three Months or More Past Due, or in Foreclosure(2) | 20- and 30-year or more, amortizing fixed-rate    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 17,357 16,266
Three Months or More Past Due, or in Foreclosure(2) | 15-year or less, amortizing fixed-rate    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 423 468
Three Months or More Past Due, or in Foreclosure(2) | Adjustable-rate and other    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 209 215
Three Months or More Past Due, or in Foreclosure(2) | Multifamily    
Financing Receivable, Past Due [Line Items]    
Financing Receivable 1 $ 199 $ 190