v3.26.1
Fair Value Disclosures - Fair Value of Financial Instruments (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Financial Assets    
Securities Purchased under Agreements to Resell $ 52,406 $ 71,919
Counterparty netting (4,683) (6,459)
Mortgage Loans [Abstract]    
Mortgage Loans Held-for-sale 1,361 1,014
Mortgage loans held-for-investment (net of allowance for credit losses of $6,771 and $7,968 and includes $6,747 and $7,005 at fair value) 3,332,294 3,290,066
Mortgage Loans Net 3,333,655 3,291,080
Derivative Asset 1,860 1,466
Netting adjustments (2,998) (2,998)
Other Assets 6,351 6,421
Financial Liabilities    
Debt, Fair Value 176 195
Securities Sold under Agreements to Repurchase 0 0
Debt 5,991 5,841
Counterparty netting (4,683) (6,459)
Derivative Liability 873 781
Derivative liabilities, netting Adjustment (2,998) (2,998)
Other Liabilities 11,199 11,595
Other Liabilities, Fair Value 873 781
Mortgage Loans held-for-investment, fair value 6,747 7,005
Held by Freddie Mac    
Financial Liabilities    
Debt, Fair Value 38 51
Held by consolidated trusts    
Financial Assets    
Securities Purchased under Agreements to Resell 17,181 19,107
Mortgage Loans [Abstract]    
Mortgage loans held-for-investment (net of allowance for credit losses of $6,771 and $7,968 and includes $6,747 and $7,005 at fair value) 3,253,768 3,198,847
Financial Liabilities    
Other Liabilities 1 0
GAAP Carrying Amount    
Financial Assets    
Cash and Cash Equivalents 4,321 5,327
Securities Purchased under Agreements to Resell 52,406 71,919
Investments in Securities [Abstract]    
Debt Securities, Available-for-sale 2,404 3,316
Trading, at fair value 81,938 82,096
Total investments in securities 84,342 85,412
Mortgage Loans [Abstract]    
Mortgage Loans Held-for-sale 1,361 1,014
Mortgage loans held-for-investment (net of allowance for credit losses of $6,771 and $7,968 and includes $6,747 and $7,005 at fair value) 3,332,294 3,290,066
Guarantee Assets 4,247 4,728
Derivative Asset 1,860 1,466
All Other Assets 1,905 2,607
Other Assets 8,012 8,801
Total Assets carried at fair value on a recurring basis 3,482,736 3,462,539
Financial Liabilities    
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure 0 0
Guarantee obligation 4,031 4,494
Derivative Liability 873 781
Other Liabilities 0 0
Other Liabilities, Fair Value 4,904 5,275
Total Financial Liabilities 3,423,296 3,410,297
GAAP Carrying Amount | Held by Freddie Mac    
Financial Liabilities    
Short-Term Debt, Fair Value 17,984 37,718
Debt, Fair Value 163,745 169,296
GAAP Carrying Amount | Held by consolidated trusts    
Financial Liabilities    
Debt issued by consolidated trusts Fair Value 3,236,663 3,198,008
GAAP Carrying Amount | AmortizedCost    
Financial Liabilities    
Debt issued by consolidated trusts Fair Value 3,200,000 3,200,000
Debt, Fair Value 200,000 200,000
Debt 1,700 2,400
Mortgage Loans held-for-investment, fair value 3,300,000 3,300,000
GAAP Carrying Amount | FV - NI    
Financial Liabilities    
Debt issued by consolidated trusts Fair Value 6,000 5,800
Debt, Fair Value 200 200
Debt 200 200
Mortgage Loans held-for-investment, fair value 6,700 7,000
Fair Value    
Financial Assets    
Cash and Cash Equivalents 4,321 5,327
Securities Purchased under Agreements to Resell 52,406 71,919
Counterparty netting (4,683) (6,459)
Investments in Securities [Abstract]    
Debt Securities, Available-for-sale 2,404 3,316
Trading, at fair value 81,938 82,096
Total investments in securities 84,342 85,412
Mortgage Loans [Abstract]    
Mortgage Loans Held-for-sale 1,476 1,078
Mortgage loans held-for-investment (net of allowance for credit losses of $6,771 and $7,968 and includes $6,747 and $7,005 at fair value) 3,029,860 3,008,811
Guarantee Assets 4,249 4,730
Derivative Asset 1,860 1,466
Netting adjustments (3,815) (3,874)
All Other Assets 2,200 2,887
Other Assets 8,309 9,083
Total Asset Netting Adjustment (8,498) (10,333)
Total Assets carried at fair value on a recurring basis 3,180,714 3,181,630
Financial Liabilities    
Short-Term Debt, Fair Value 17,979 37,727
Debt, Fair Value 163,935 170,114
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure 0 0
Guarantee obligation 5,665 6,196
Derivative Liability 873 781
Derivative liabilities, netting Adjustment (3,999) (3,979)
Other Liabilities 200 262
Other Liabilities, Fair Value 6,738 7,239
Total Liability Netting Adjustment (8,682) (10,438)
Total Financial Liabilities 3,120,120 3,128,867
Fair Value | Held by Freddie Mac    
Financial Liabilities    
Securities Sold under Agreements to Repurchase (4,683) (6,459)
Fair Value | Held by consolidated trusts    
Financial Liabilities    
Debt issued by consolidated trusts Fair Value 2,931,468 2,913,787
Fair Value | Level 1    
Financial Assets    
Cash and Cash Equivalents 4,321 5,327
Securities Purchased under Agreements to Resell 0 0
Investments in Securities [Abstract]    
Debt Securities, Available-for-sale 0 0
Trading, at fair value 71,161 70,916
Total investments in securities 71,161 70,916
Mortgage Loans [Abstract]    
Mortgage Loans Held-for-sale 0 0
Mortgage loans held-for-investment (net of allowance for credit losses of $6,771 and $7,968 and includes $6,747 and $7,005 at fair value) 0 0
Guarantee Assets 0 0
Derivative assets, net 2 5
All Other Assets 0 0
Other Assets 2 5
Total Assets carried at fair value on a recurring basis 75,484 76,248
Financial Liabilities    
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure 0 0
Guarantee obligation 0 0
Derivative liabilities at fair value 8 0
Other Liabilities 0 0
Other Liabilities, Fair Value 8 0
Total Financial Liabilities 8 0
Fair Value | Level 1 | Held by Freddie Mac    
Financial Liabilities    
Short-Term Debt, Fair Value 0 0
Debt, Fair Value 0 0
Fair Value | Level 1 | Held by consolidated trusts    
Financial Liabilities    
Debt issued by consolidated trusts Fair Value 0 0
Fair Value | Level 2    
Financial Assets    
Cash and Cash Equivalents 0 0
Securities Purchased under Agreements to Resell 57,089 78,378
Investments in Securities [Abstract]    
Debt Securities, Available-for-sale 1,788 2,616
Trading, at fair value 8,279 8,394
Total investments in securities 10,067 11,010
Mortgage Loans [Abstract]    
Mortgage Loans Held-for-sale 96 139
Mortgage loans held-for-investment (net of allowance for credit losses of $6,771 and $7,968 and includes $6,747 and $7,005 at fair value) 2,670,546 2,626,057
Guarantee Assets 0 0
Derivative assets, net 5,624 5,261
All Other Assets 537 445
Other Assets 6,161 5,706
Total Assets carried at fair value on a recurring basis 2,743,959 2,721,290
Financial Liabilities    
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure 4,683 6,459
Guarantee obligation 90 92
Derivative liabilities at fair value 4,734 4,708
Other Liabilities 149 184
Other Liabilities, Fair Value 4,973 4,984
Total Financial Liabilities 3,119,987 3,129,963
Fair Value | Level 2 | Held by Freddie Mac    
Financial Liabilities    
Short-Term Debt, Fair Value 17,979 37,727
Debt, Fair Value 161,274 167,440
Fair Value | Level 2 | Held by consolidated trusts    
Financial Liabilities    
Debt issued by consolidated trusts Fair Value 2,931,078 2,913,353
Fair Value | Level 3    
Financial Assets    
Cash and Cash Equivalents 0 0
Securities Purchased under Agreements to Resell 0 0
Investments in Securities [Abstract]    
Debt Securities, Available-for-sale 616 700
Trading, at fair value 2,498 2,786
Total investments in securities 3,114 3,486
Mortgage Loans [Abstract]    
Mortgage Loans Held-for-sale 1,380 939
Mortgage loans held-for-investment (net of allowance for credit losses of $6,771 and $7,968 and includes $6,747 and $7,005 at fair value) 359,314 382,754
Guarantee Assets 4,249 4,730
Derivative assets, net 49 74
All Other Assets 1,663 2,442
Other Assets 5,961 7,246
Total Assets carried at fair value on a recurring basis 369,769 394,425
Financial Liabilities    
Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure 0 0
Guarantee obligation 5,575 6,104
Derivative liabilities at fair value 130 52
Other Liabilities 51 78
Other Liabilities, Fair Value 5,756 6,234
Total Financial Liabilities 8,807 9,342
Fair Value | Level 3 | Held by Freddie Mac    
Financial Liabilities    
Short-Term Debt, Fair Value 0 0
Debt, Fair Value 2,661 2,674
Fair Value | Level 3 | Held by consolidated trusts    
Financial Liabilities    
Debt issued by consolidated trusts Fair Value $ 390 $ 434