Significant Credit Concentrations (Details Textual) $ in Billions	12 Months Ended
Dec. 31, 2025 USD ($)
Concentration Risk [Line Items]
Unused credit available to customers	$ 513
Geographic \| Commitments to Extend Credit \| United States
Concentration Risk [Line Items]
Concentration risk percentage	80.00%

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/2009/role/commonPracticeRef
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+ Details

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References + Details