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Allowance for Credit Losses (Collateral Dependent Loans and Leases) (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | $ 48,462 | $ 37,681
Commercial real estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 28,620 | 19,567
Commercial real estate | Non-owner occupied term |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 8,444 | 6,278
Commercial real estate | Owner occupied term |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 7,361 | 5,270
Commercial |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 11,786 | 9,969
Commercial | Term |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 6,590 | 5,538
Commercial | Lines of credit & other |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 3,582 | 2,770
Commercial | Leases & equipment finance |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 1,614 | 1,661
Residential |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 7,875 | 7,965
Residential | Mortgage |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 5,722 | 5,933
Residential | Home equity loans & lines |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 2,153 | 2,032
Residential Real Estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 68 | 83
Residential Real Estate | Commercial real estate | Non-owner occupied term |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 0 | 0
Residential Real Estate | Commercial real estate | Owner occupied term |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 0 | 0
Residential Real Estate | Commercial | Term |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 0 | 2
Residential Real Estate | Commercial | Lines of credit & other |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 0 | 0
Residential Real Estate | Commercial | Leases & equipment finance |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 0 | 0
Residential Real Estate | Residential | Mortgage |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 66 | 79
Residential Real Estate | Residential | Home equity loans & lines |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 2 | 2
Commercial Real Estate |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 49 | 38
Commercial Real Estate | Commercial real estate | Non-owner occupied term |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 35 | 13
Commercial Real Estate | Commercial real estate | Owner occupied term |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 11 | 20
Commercial Real Estate | Commercial | Term |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 1 | 3
Commercial Real Estate | Commercial | Lines of credit & other |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 2 | 2
Commercial Real Estate | Commercial | Leases & equipment finance |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 0 | 0
Commercial Real Estate | Residential | Mortgage |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 0 | 0
Commercial Real Estate | Residential | Home equity loans & lines |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 0 | 0
General Business Assets |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 54 | 41
General Business Assets | Commercial real estate | Non-owner occupied term |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 0 | 0
General Business Assets | Commercial real estate | Owner occupied term |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 0 | 0
General Business Assets | Commercial | Term |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 17 | 16
General Business Assets | Commercial | Lines of credit & other |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 20 | 4
General Business Assets | Commercial | Leases & equipment finance |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 17 | 21
General Business Assets | Residential | Mortgage |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 0 | 0
General Business Assets | Residential | Home equity loans & lines |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 0 | 0
Total |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 171 | 162
Total | Commercial real estate | Non-owner occupied term |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 35 | 13
Total | Commercial real estate | Owner occupied term |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 11 | 20
Total | Commercial | Term |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 18 | 21
Total | Commercial | Lines of credit & other |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 22 | 6
Total | Commercial | Leases & equipment finance |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 17 | 21
Total | Residential | Mortgage |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | 66 | 79
Total | Residential | Home equity loans & lines |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Loans and leases | $ 2 | $ 2

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