Amortized cost excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty.

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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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Loans, Leases and Allowance for Credit Losses - Amortized Cost Basis of Loans Modified (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	$ 36	$ 1	$ 69	$ 238
% of Total Class of Financing Receivable	0.10%	0.00%	0.10%	0.40%
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	$ 33	$ 0	$ 63	$ 40
Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0	0	2	1
Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	3	1	4	197
Tech & innovation
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis				$ 24
% of Total Class of Financing Receivable				0.70%
Tech & innovation \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis				$ 5
Tech & innovation \| Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis				1
Tech & innovation \| Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis				18
Other commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	$ 3	$ 1	$ 36	$ 84
% of Total Class of Financing Receivable	0.00%	0.00%	0.20%	0.80%
Other commercial and industrial \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	$ 0	$ 0	$ 30	$ 0
Other commercial and industrial \| Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0	0	2	0
Other commercial and industrial \| Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	3	$ 1	4	84
Other CRE - non-owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	$ 33		$ 33	$ 91
% of Total Class of Financing Receivable	0.60%		0.60%	1.40%
Other CRE - non-owner occupied \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	$ 33		$ 33	$ 35
Other CRE - non-owner occupied \| Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0		0	0
Other CRE - non-owner occupied \| Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	$ 0		$ 0	56
Construction and land development
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis				$ 39
% of Total Class of Financing Receivable				0.90%
Construction and land development \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis				$ 0
Construction and land development \| Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis				0
Construction and land development \| Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis				$ 39