Loans - Wholesale Loan Portfolio, Nonaccrual Loans (Details) - Wholesale - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025
Financing Receivable, Nonaccrual [Line Items]
With an allowance	$ 2,601	$ 2,395
Without an allowance	1,601	2,003
Total nonaccrual loans	4,202	4,398
Secured by real estate
Financing Receivable, Nonaccrual [Line Items]
With an allowance	392	365
Without an allowance	1,162	1,313
Total nonaccrual loans	1,554	1,678
Commercial and industrial
Financing Receivable, Nonaccrual [Line Items]
With an allowance	1,853	1,562
Without an allowance	375	392
Total nonaccrual loans	2,228	1,954
Other
Financing Receivable, Nonaccrual [Line Items]
With an allowance	356	468
Without an allowance	64	298
Total nonaccrual loans	$ 420	$ 766

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.

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