Investments (Tables)
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6 Months Ended |
Jun. 30, 2026 |
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| Investment Debt Securities Table [Line Items] |
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| Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block] |
Trading securities by major security type were as follows (dollars in millions): | | | | | | | | | | | | | | | | | | | June 30,
2026 | | December 31,
2025 | | Non-mortgage-backed securities | | | | U.S. Treasury obligations1 | $ | 5,874 | | | $ | 6,104 | | Other U.S. obligations1 | 54 | | | 57 | | | GSE and Tennessee Valley Authority obligations | 46 | | | 48 | | Other2 | 93 | | | 94 | | | | | | | | | | | | | | | Total fair value | $ | 6,067 | | | $ | 6,303 | |
1 Represents investment securities backed by the full faith and credit of the U.S. Government. 2 Consists of taxable municipal bonds.
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| Schedule of Available-for-sale Securities Reconciliation [Table Text Block] |
AFS securities by major security type were as follows (dollars in millions): | | | | | | | | | | | | | | | | | | | | | | | | | June 30, 2026 | | Amortized
Cost1 | | Gross
Unrealized
Gains | | Gross
Unrealized
Losses | |
Fair
Value | | Non-mortgage-backed securities | | | | | | | | Other U.S. obligations2 | $ | 4 | | | $ | — | | | $ | — | | | $ | 4 | | | GSE and Tennessee Valley Authority obligations | 276 | | | 28 | | | — | | | 304 | | | State or local housing agency obligations | 454 | | | 2 | | | (2) | | | 454 | | Other3 | 18 | | | 1 | | | — | | | 19 | | | Total non-mortgage-backed securities | 752 | | | 31 | | | (2) | | | 781 | | | Mortgage-backed securities | | | | | | | | U.S. obligations single-family2 | 6,759 | | | 48 | | | — | | | 6,807 | | | GSE single-family | 199 | | | 1 | | | — | | | 200 | | | GSE multifamily | 20,768 | | | 234 | | | (15) | | | 20,987 | | | Total mortgage-backed securities | 27,726 | | | 283 | | | (15) | | | 27,994 | | | Total | $ | 28,478 | | | $ | 314 | | | $ | (17) | | | $ | 28,775 | |
| | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2025 | | Amortized
Cost1 | | Gross
Unrealized
Gains | | Gross
Unrealized
Losses | |
Fair
Value | | Non-mortgage-backed securities | | | | | | | | Other U.S. obligations2 | $ | 14 | | | $ | — | | | $ | — | | | $ | 14 | | | GSE and Tennessee Valley Authority obligations | 280 | | | 30 | | | — | | | 310 | | | State or local housing agency obligations | 369 | | | 2 | | | (1) | | | 370 | | Other3 | 18 | | | 1 | | | — | | | 19 | | | Total non-mortgage-backed securities | 681 | | | 33 | | | (1) | | | 713 | | | Mortgage-backed securities | | | | | | | | U.S. obligations single-family2 | 5,683 | | | 25 | | | (1) | | | 5,707 | | | GSE single-family | 217 | | | 1 | | | (1) | | | 217 | | | GSE multifamily | 20,755 | | | 152 | | | (25) | | | 20,882 | | | Total mortgage-backed securities | 26,655 | | | 178 | | | (27) | | | 26,806 | | | Total | $ | 27,336 | | | $ | 211 | | | $ | (28) | | | $ | 27,519 | |
1 Amortized cost includes adjustments made to the cost basis of an investment for accretion, amortization, and/or fair value hedge accounting adjustments, and excludes accrued interest receivable of $89 million at both June 30, 2026 and December 31, 2025. 2 Represents investment securities backed by the full faith and credit of the U.S. Government. 3 Consists of taxable municipal bonds.
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| Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value [Table Text Block] |
The following tables summarize AFS securities with gross unrealized losses by major security type and length of time that individual securities have been in a continuous unrealized loss position (dollars in millions). In cases where the gross unrealized losses for an investment category are less than $1 million, the losses are not reported. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | June 30, 2026 | | Less than 12 Months | | 12 Months or More | | Total | | Fair
Value | | Gross Unrealized
Losses | | Fair
Value | | Gross Unrealized
Losses | | Fair
Value | | Gross Unrealized
Losses | | Non-mortgage-backed securities | | | | | | | | | | | | Other U.S. obligations1 | $ | — | | | $ | — | | | $ | 2 | | | $ | — | | | $ | 2 | | | $ | — | | | | | | | | | | | | | | | State or local housing agency obligations | 108 | | | (1) | | | 147 | | | (1) | | | 255 | | | (2) | | | | | | | | | | | | | | | Total non-mortgage-backed securities | 108 | | | (1) | | | 149 | | | (1) | | | 257 | | | (2) | | | Mortgage-backed securities | | | | | | | | | | | | | | | | | | | | | | | | U.S. obligations single-family1 | 129 | | | — | | | 98 | | | — | | | 227 | | | — | | | GSE single-family | 6 | | | — | | | 56 | | | — | | | 62 | | | — | | | GSE multifamily | 508 | | | (3) | | | 1,938 | | | (12) | | | 2,446 | | | (15) | | | Total mortgage-backed securities | 643 | | | (3) | | | 2,092 | | | (12) | | | 2,735 | | | (15) | | | Total | $ | 751 | | | $ | (4) | | | $ | 2,241 | | | $ | (13) | | | $ | 2,992 | | | $ | (17) | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2025 | | Less than 12 Months | | 12 Months or More | | Total | | Fair
Value | | Gross Unrealized
Losses | | Fair
Value | | Gross Unrealized
Losses | | Fair
Value | | Gross Unrealized
Losses | | Non-mortgage-backed securities | | | | | | | | | | | | Other U.S. obligations1 | $ | 7 | | | $ | — | | | $ | 3 | | | $ | — | | | $ | 10 | | | $ | — | | | | | | | | | | | | | | | State or local housing agency obligations | 82 | | | (1) | | | 123 | | | — | | | 205 | | | (1) | | | Total non-mortgage-backed securities | 89 | | | (1) | | | 126 | | | — | | | 215 | | | (1) | | | Mortgage-backed securities | | | | | | | | | | | | U.S. obligations single-family1 | 181 | | | — | | | 488 | | | (1) | | | 669 | | | (1) | | | GSE single-family | — | | | — | | | 71 | | | (1) | | | 71 | | | (1) | | | GSE multifamily | 216 | | | — | | | 3,831 | | | (25) | | | 4,047 | | | (25) | | | Total mortgage-backed securities | 397 | | | — | | | 4,390 | | | (27) | | | 4,787 | | | (27) | | | Total | $ | 486 | | | $ | (1) | | | $ | 4,516 | | | $ | (27) | | | $ | 5,002 | | | $ | (28) | |
1 Represents investment securities backed by the full faith and credit of the U.S. Government.
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| Debt Securities, Held-to-maturity [Table Text Block] |
HTM securities by major security type were as follows (dollars in millions): | | | | | | | | | | | | | | | | | | | | | | | | | June 30, 2026 | | Amortized
Cost1 | | Gross Unrecognized Gains | | Gross Unrecognized Losses | | Fair
Value | | Non-mortgage-backed securities | | | | | | | | | GSE and Tennessee Valley Authority obligations | $ | 124 | | | $ | 7 | | | $ | (1) | | | $ | 130 | | | State or local housing agency obligations | 17 | | | — | | | — | | | 17 | | | Total non-mortgage-backed securities | 141 | | | 7 | | | (1) | | | 147 | | | Mortgage-backed securities | | | | | | | | U.S. obligations single-family2 | 1 | | | — | | | — | | | 1 | | | | | | | | | | | GSE single-family | 269 | | | — | | | (4) | | | 265 | | | Private-label | 2 | | | — | | | — | | | 2 | | | Total mortgage-backed securities | 272 | | | — | | | (4) | | | 268 | | | Total | $ | 413 | | | $ | 7 | | | $ | (5) | | | $ | 415 | |
| | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2025 | | Amortized
Cost1 | | Gross Unrecognized Gains | | Gross Unrecognized Losses | | Fair
Value | | Non-mortgage-backed securities | | | | | | | | | GSE and Tennessee Valley Authority obligations | $ | 124 | | | $ | 8 | | | $ | — | | | $ | 132 | | | State or local housing agency obligations | 21 | | | 1 | | | — | | | 22 | | | Total non-mortgage-backed securities | 145 | | | 9 | | | — | | | 154 | | | Mortgage-backed securities | | | | | | | | U.S. obligations single-family2 | 1 | | | — | | | — | | | 1 | | | | | | | | | | | GSE single-family | 299 | | | — | | | (4) | | | 295 | | | Private-label | 2 | | | — | | | — | | | 2 | | | Total mortgage-backed securities | 302 | | | — | | | (4) | | | 298 | | | Total | $ | 447 | | | $ | 9 | | | $ | (4) | | | $ | 452 | |
1 Amortized cost includes adjustments made to the cost basis of an investment for accretion or amortization and excludes accrued interest receivable of $2 million at both June 30, 2026 and December 31, 2025. 2 Represents investment securities backed by the full faith and credit of the U.S. Government.
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| Gain (Loss) on Securities |
The following table summarizes the components of “Net gains (losses) on trading securities” as presented on the Statements of Income (dollars in millions): | | | | | | | | | | | | | | | | | | | | | | | | | For the Three Months Ended | | For the Six Months Ended | | June 30, | | June 30, | | 2026 | | 2025 | | 2026 | | 2025 | | Net unrealized gains (losses) on trading securities held at period-end | $ | (41) | | | $ | 19 | | | $ | (91) | | | $ | 63 | | | Net gains (losses) on trading securities no longer held at period-end | (1) | | | 3 | | | — | | | 6 | | | Net gains (losses) on trading securities | $ | (42) | | | $ | 22 | | | $ | (91) | | | $ | 69 | |
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| Available-for-sale Securities [Member] |
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| Investment Debt Securities Table [Line Items] |
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| Investments Classified by Contractual Maturity Date [Table Text Block] |
The following table summarizes AFS securities by contractual maturity. Expected maturities of some securities may differ from contractual maturities as borrowers may have the right to call or prepay obligations with or without call or prepayment fees (dollars in millions): | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | June 30, 2026 | | December 31, 2025 | | | | | | Year of Contractual Maturity | | Amortized
Cost | | Fair
Value | | Amortized
Cost | | Fair
Value | | | | | | Non-mortgage-backed securities | | | | | | | | | | | | | | Due in one year or less | | $ | 2 | | | $ | 2 | | | $ | 11 | | | $ | 11 | | | | | | | Due after one year through five years | | 44 | | | 46 | | | 47 | | | 49 | | | | | | | Due after five years through ten years | | 349 | | | 355 | | | 224 | | | 227 | | | | | | | Due after ten years | | 357 | | | 378 | | | 399 | | | 426 | | | | | | | Total non-mortgage-backed securities | | 752 | | | 781 | | | 681 | | | 713 | | | | | | | Mortgage-backed securities | | 27,726 | | | 27,994 | | | 26,655 | | | 26,806 | | | | | | | Total | | $ | 28,478 | | | $ | 28,775 | | | $ | 27,336 | | | $ | 27,519 | | | | | |
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| Held-to-maturity Securities [Member] |
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| Investment Debt Securities Table [Line Items] |
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| Investments Classified by Contractual Maturity Date [Table Text Block] |
The following table summarizes HTM securities by contractual maturity. Expected maturities of some securities may differ from contractual maturities as borrowers may have the right to call or prepay obligations with or without call or prepayment fees (dollars in millions): | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | June 30, 2026 | | December 31, 2025 | | Year of Contractual Maturity | | Amortized
Cost | | Fair
Value | | Amortized
Cost | | Fair
Value | | Non-mortgage-backed securities | | | | | | | | | | Due in one year or less | | $ | — | | | $ | — | | | $ | 3 | | | $ | 3 | | | Due after one year through five years | | 33 | | | 33 | | | 27 | | | 28 | | | Due after five years through ten years | | 89 | | | 94 | | | 69 | | | 74 | | | Due after ten years | | 19 | | | 20 | | | 46 | | | 49 | | | Total non-mortgage-backed securities | | 141 | | | 147 | | | 145 | | | 154 | | | Mortgage-backed securities | | 272 | | | 268 | | | 302 | | | 298 | | | Total | | $ | 413 | | | $ | 415 | | | $ | 447 | | | $ | 452 | |
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