Affordable Housing Program (Roll-forward) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Federal Home Loan Bank, Affordable Housing Program Obligation [Roll Forward] | ||||
| AHP liability balance, at beginning of period | $ 174 | $ 157 | ||
| Statutory AHP assessment | $ 14 | $ 16 | 30 | 32 |
| Voluntary AHP expense | 14 | 11 | ||
| Direct grant disbursements | (50) | (40) | ||
| Recapture amounts and other | 1 | 0 | ||
| AHP liability balance, at end of period | $ 169 | $ 160 | $ 169 | $ 160 |
| X | ||||||||||
- Definition Affordable Housing Program amounts recaptured that were previously distributed and other amounts, net. No definition available.
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| X | ||||||||||
- Definition Voluntary contribution to Affordable Housing Programs. No definition available.
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| X | ||||||||||
- Definition Amount of expense for Federal Home Loan Bank (FHLBank) obligation for Affordable Housing Program (AHP) assessment required by Federal Home Loan Bank Act of 1932. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of Federal Home Loan Bank (FHLBank) obligation for Affordable Housing Program (AHP) assessment required by Federal Home Loan Bank Act of 1932. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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| X | ||||||||||
- Definition Amount of cash outflow for payment made by Federal Home Loan Bank (FHLBank) for Affordable Housing Program (AHP) assessment required by Federal Home Loan Bank Act of 1932. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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