Loans - Wholesale Loan Portfolio, Nonaccrual Loans (Details) - Wholesale - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Financing Receivable, Nonaccrual [Line Items]
With an allowance	$ 3,032	$ 2,283
Without an allowance	1,447	1,659
Total nonaccrual loans	4,479	3,942
Secured by real estate
Financing Receivable, Nonaccrual [Line Items]
With an allowance	524	366
Without an allowance	953	1,073
Total nonaccrual loans	1,477	1,439
Commercial and industrial
Financing Receivable, Nonaccrual [Line Items]
With an allowance	1,839	1,362
Without an allowance	271	398
Total nonaccrual loans	2,110	1,760
Other
Financing Receivable, Nonaccrual [Line Items]
With an allowance	669	555
Without an allowance	223	188
Total nonaccrual loans	$ 892	$ 743

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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