Activities with Stockholders (Transactions with Directors' Financial Institutions) (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Related Party Transaction [Line Items] | ||
| Advances | $ 124,489 | $ 110,230 |
| Deposits, Domestic | 1,339 | 1,147 |
| Capital Stock | 7,223 | 6,509 |
| Director [Member] | ||
| Related Party Transaction [Line Items] | ||
| Advances | $ 430 | $ 667 |
| Advances, Percent | 0.00% | 1.00% |
| Mortgage Loans, Percent | 3.00% | 4.00% |
| Deposits, Domestic | $ 14 | $ 15 |
| Deposits, Percent | 1.00% | 1.00% |
| Capital Stock | $ 50 | $ 65 |
| Capital Stock, Percent | 1.00% | 1.00% |
| Director [Member] | Conventional Mortgage Loan [Member] | ||
| Related Party Transaction [Line Items] | ||
| Financing Receivable, Allowance for Credit Loss, Noncurrent | $ 527 | $ 606 |
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- Definition Value of shares of other common stock instruments held by shareholders, such as exchangeable shares. May be all or portion of the number of common shares authorized expressed as a percent. No definition available.
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- Definition The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others expressed as a precent. No definition available.
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- Definition The aggregate carrying amount of all Federal Home Loan Bank loans (advances) expressed as a percent. No definition available.
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- Definition The gross carrying amount of mortgage loans to individuals. This item excludes subordinated loans such as home equity lines of credit expressed as a percent. No definition available.
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- Definition Value of share of other common stock instruments held by shareholder. Includes, but is not limited to, exchangeable share. No definition available.
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- Definition The aggregate of all domestic interest-bearing and noninterest-bearing deposit liabilities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of Federal Home Loan Bank (FHLBank) advances to member financial institutions. No definition available.
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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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/disclosureRef
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