Fair Value (Fair Value Difference Between Fair Value and Remaining Contractual Principal Balance Outstanding) (Details) - USD ($) $ in Millions |
Mar. 31, 2026 |
Dec. 31, 2025 |
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| Fair Value, Option, Quantitative Disclosures [Line Items] | ||
| Fair Value Option, Principal Balance, Advances | $ 5,109 | $ 5,371 |
| Fair Value of advances under the fair value option | 5,151 | 5,441 |
| Fair Value Over/(Under) Principal Balance, Advances | 42 | 70 |
| Consolidated obligation bonds | ||
| Fair Value, Option, Quantitative Disclosures [Line Items] | ||
| Fair Value Option, Principal Balance, CO Bonds | 370 | 360 |
| Bonds, fair value under the fair value option | 368 | 357 |
| Fair Value Over/(Under) Principal Balance, CO Bonds | $ (2) | $ (3) |
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- Definition Represents the outstanding amount of the unpaid principal balance of Federal Home Loan Bank Advances for which the fair value option has been elected. No definition available.
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- Definition Represents the outstanding amount of the unpaid principal balance of consolidated obligation bonds for which the fair value option has been elected. No definition available.
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- Definition Fair value of Federal Home Loan Bank (FHLBank) advances carried under the fair value option. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition This item represents the difference between the aggregate fair value and the aggregate unpaid principal balance of long-term debt instruments that have contractual principal amounts and for which the fair value option has been elected. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of accumulated increase (decrease) on advances made and reported by Federal Home Loan Bank (FHLBank) from fair value option adjustments. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Details
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