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Loans And The Allowance For Credit Losses (Modifications By Class And Segment) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 89 | $ 204 | $ 377 | $ 353
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.09% | 0.21% | 0.39% | 0.36%
Extended Maturity |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 81 | $ 133 | $ 351 | $ 272
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.08% | 0.14% | 0.36% | 0.28%
Payment Deferral |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 1 | $ 3 | $ 2
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.00% | 0.00% | 0.00%
Extended Maturity and Interest Rate Reduction |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 8 | $ 41 | $ 23 | $ 50
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.01% | 0.04% | 0.02% | 0.05%
Other Loan Modification type |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 29 |  | $ 29
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.03% |  | 0.03%
Commercial |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 30 | $ 56 | $ 108 | $ 88
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.06% | 0.10% | 0.20% | 0.16%
Commercial | Extended Maturity |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 30 | $ 23 | $ 108 | $ 55
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.05% | 0.04% | 0.20% | 0.10%
Commercial | Payment Deferral |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 0 | $ 0 | $ 0
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.00% | 0.00% | 0.00%
Commercial | Extended Maturity and Interest Rate Reduction |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 0 | $ 33 | $ 0 | $ 33
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.00% | 0.06% | 0.00% | 0.06%
Commercial | Other Loan Modification type |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 0 |  | $ 0
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.00% |  | 0.00%
Investor Real Estate |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 101 | $ 77 | $ 128
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 1.14% | 0.84% | 1.46%
Investor Real Estate | Extended Maturity |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 72 | $ 77 | $ 99
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.82% | 0.84% | 1.13%
Investor Real Estate | Payment Deferral |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 0 | $ 0 | $ 0
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.00% | 0.00% | 0.00%
Investor Real Estate | Extended Maturity and Interest Rate Reduction |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 0 | $ 0 | $ 0
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.00% | 0.00% | 0.00%
Investor Real Estate | Other Loan Modification type |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 29 |  | $ 29
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.33% |  | 0.33%
Consumer |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 59 | $ 47 | $ 192 | $ 137
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.18% | 0.14% | 0.58% | 0.41%
Consumer | Extended Maturity |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 51 | $ 38 | $ 166 | $ 118
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.15% | 0.11% | 0.51% | 0.36%
Consumer | Payment Deferral |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 1 | $ 3 | $ 2
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.00% | 0.01% | 0.01%
Consumer | Extended Maturity and Interest Rate Reduction |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 8 | $ 8 | $ 23 | $ 17
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.02% | 0.02% | 0.07% | 0.05%
Consumer | Other Loan Modification type |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 0 |  | $ 0
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.00% |  | 0.00%
Commercial And Industrial [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 27 | $ 54 | $ 105 | $ 84
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.06% | 0.11% | 0.21% | 0.17%
Commercial And Industrial [Member] | Extended Maturity |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 27 | $ 21 | $ 105 | $ 51
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.06% | 0.04% | 0.21% | 0.10%
Commercial And Industrial [Member] | Payment Deferral |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 0 | $ 0 | $ 0
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.00% | 0.00% | 0.00%
Commercial And Industrial [Member] | Extended Maturity and Interest Rate Reduction |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 0 | $ 33 | $ 0 | $ 33
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.00% | 0.07% | 0.00% | 0.07%
Commercial And Industrial [Member] | Other Loan Modification type |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 0 |  | $ 0
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.00% |  | 0.00%
Commercial Real Estate Mortgage - Owner-Occupied [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 3 | $ 2 | $ 3 | $ 4
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.05% | 0.04% | 0.07% | 0.09%
Commercial Real Estate Mortgage - Owner-Occupied [Member] | Extended Maturity |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 3 | $ 2 | $ 3 | $ 4
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.05% | 0.04% | 0.07% | 0.08%
Commercial Real Estate Mortgage - Owner-Occupied [Member] | Payment Deferral |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 0 | $ 0 | $ 0
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.00% | 0.00% | 0.00%
Commercial Real Estate Mortgage - Owner-Occupied [Member] | Extended Maturity and Interest Rate Reduction |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 0 | $ 0 | $ 0 | $ 0
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.00% | 0.00% | 0.00% | 0.00%
Commercial Real Estate Mortgage - Owner-Occupied [Member] | Other Loan Modification type |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 0 |  | $ 0
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.00% |  | 0.00%
Commercial investor real estate mortgage [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 101 | $ 77 | $ 128
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 1.54% | 1.07% | 1.95%
Commercial investor real estate mortgage [Member] | Extended Maturity |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 72 | $ 77 | $ 99
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 1.10% | 1.07% | 1.51%
Commercial investor real estate mortgage [Member] | Payment Deferral |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 0 | $ 0 | $ 0
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.00% | 0.00% | 0.00%
Commercial investor real estate mortgage [Member] | Extended Maturity and Interest Rate Reduction |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 0 | $ 0 | $ 0
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.00% | 0.00% | 0.00%
Commercial investor real estate mortgage [Member] | Other Loan Modification type |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 29 |  | $ 29
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.44% |  | 0.44%
Residential First Mortgage [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 55 | $ 40 | $ 179 | $ 121
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.28% | 0.20% | 0.90% | 0.60%
Residential First Mortgage [Member] | Extended Maturity |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 50 | $ 37 | $ 162 | $ 115
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.25% | 0.18% | 0.81% | 0.57%
Residential First Mortgage [Member] | Payment Deferral |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 1 | $ 3 | $ 2
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.01% | 0.01% | 0.01%
Residential First Mortgage [Member] | Extended Maturity and Interest Rate Reduction |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 5 | $ 2 | $ 14 | $ 4
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.02% | 0.01% | 0.07% | 0.02%
Residential First Mortgage [Member] | Other Loan Modification type |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 0 |  | $ 0
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.00% |  | 0.00%
Home Equity Lines of Credit[Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 2 | $ 4 | $ 6 | $ 7
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.05% | 0.13% | 0.17% | 0.22%
Home Equity Lines of Credit[Member] | Extended Maturity |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 0 | $ 0 | $ 1 | $ 0
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.00% | 0.00% | 0.02% | 0.01%
Home Equity Lines of Credit[Member] | Payment Deferral |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 0 | $ 0 | $ 0
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.00% | 0.00% | 0.00%
Home Equity Lines of Credit[Member] | Extended Maturity and Interest Rate Reduction |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 2 | $ 4 | $ 5 | $ 7
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.05% | 0.13% | 0.14% | 0.21%
Home Equity Lines of Credit[Member] | Other Loan Modification type |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 0 |  | $ 0
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.00% |  | 0.00%
Home Equity Loan [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 2 | $ 3 | $ 7 | $ 9
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.09% | 0.13% | 0.30% | 0.37%
Home Equity Loan [Member] | Extended Maturity |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 1 | $ 1 | $ 3 | $ 3
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.03% | 0.05% | 0.11% | 0.13%
Home Equity Loan [Member] | Payment Deferral |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 0 | $ 0 | $ 0
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.00% | 0.00% | 0.00%
Home Equity Loan [Member] | Extended Maturity and Interest Rate Reduction |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 1 | $ 2 | $ 4 | $ 6
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.06% | 0.08% | 0.19% | 0.24%
Home Equity Loan [Member] | Other Loan Modification type |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount |  | $ 0 |  | $ 0
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage |  | 0.00% |  | 0.00%

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