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Commitments, Contingencies, Guarantees and Others - Other Contingencies (Details) - FDIC Special Assessment - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Dec. 31, 2023	Sep. 30, 2025	Jul. 08, 2025
Loss Contingencies [Line Items]
Operating expenses	$ 289	$ 317
Special assessment fees			$ 200

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- Definition

Special Assessment Fees

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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.

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Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

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