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Loans And The Allowance For Credit Losses (Modifications By Class And Segment) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 155 | $ 185
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.16% | 0.19%
Extended Maturity |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 142 | $ 181
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.15% | 0.19%
Contractual Interest Rate Reduction |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 3 |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.00% |
Payment Deferral |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 1 |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.00% |
Extended Maturity and Interest Rate Reduction |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 9 | $ 4
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.01% | 0.00%
Commercial |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 62 | $ 41
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.12% | 0.07%
Commercial | Extended Maturity |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 59 | $ 41
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.11% | 0.07%
Commercial | Contractual Interest Rate Reduction |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 3 |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.01% |
Commercial | Payment Deferral |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 0 |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.00% |
Commercial | Extended Maturity and Interest Rate Reduction |  |
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 | $ 24 | $ 100
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.27% | 1.14%
Investor Real Estate | Extended Maturity |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 24 | $ 100
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.27% | 1.14%
Investor Real Estate | Contractual Interest Rate Reduction |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.00% |
Investor Real Estate | Payment Deferral |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 0 |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 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
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.00% | 0.00%
Consumer |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 69 | $ 44
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.21% | 0.13%
Consumer | Extended Maturity |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 59 | $ 40
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.18% | 0.12%
Consumer | Contractual Interest Rate Reduction |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 0 |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.00% |
Consumer | Payment Deferral |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 1 |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.00% |
Consumer | Extended Maturity and Interest Rate Reduction |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 9 | $ 4
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.03% | 0.01%
Commercial And Industrial [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 60 | $ 40
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.12% | 0.08%
Commercial And Industrial [Member] | Extended Maturity |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 57 | $ 40
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.12% | 0.08%
Commercial And Industrial [Member] | Contractual Interest Rate Reduction |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 3 |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.01% |
Commercial And Industrial [Member] | Payment Deferral |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 0 |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 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 | $ 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 | $ 2 | $ 1
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.03% | 0.01%
Commercial Real Estate Mortgage - Owner-Occupied [Member] | Extended Maturity |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 2 | $ 1
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.03% | 0.01%
Commercial Real Estate Mortgage - Owner-Occupied [Member] | Contractual Interest Rate Reduction |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 0 |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.00% |
Commercial Real Estate Mortgage - Owner-Occupied [Member] | Payment Deferral |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 0 |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 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
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 | $ 24 | $ 100
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.37% | 1.56%
Commercial investor real estate mortgage [Member] | Extended Maturity |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 24 | $ 100
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.37% | 1.56%
Commercial investor real estate mortgage [Member] | Contractual Interest Rate Reduction |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 0 |
Commercial investor real estate mortgage [Member] | Payment Deferral |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 0 |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 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
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.00% | 0.00%
Residential First Mortgage [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 65 | $ 40
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.32% | 0.20%
Residential First Mortgage [Member] | Extended Maturity |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 58 | $ 39
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.29% | 0.19%
Residential First Mortgage [Member] | Contractual Interest Rate Reduction |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 0 |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.00% |
Residential First Mortgage [Member] | Payment Deferral |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 1 |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.00% |
Residential First Mortgage [Member] | Extended Maturity and Interest Rate Reduction |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 6 | $ 1
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.03% | 0.01%
Home Equity Lines of Credit[Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 2 | $ 1
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.08% | 0.03%
Home Equity Lines of Credit[Member] | Extended Maturity |  |
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 | 0.02% | 0.00%
Home Equity Lines of Credit[Member] | Contractual Interest Rate Reduction |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 0 |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.00% |
Home Equity Lines of Credit[Member] | Payment Deferral |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 0 |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 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 | $ 1
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.06% | 0.02%
Home Equity Loan [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 2 | $ 3
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.10% | 0.12%
Home Equity Loan [Member] | Extended Maturity |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 1 | $ 1
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.03% | 0.04%
Home Equity Loan [Member] | Contractual Interest Rate Reduction |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 0 |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.00% |
Home Equity Loan [Member] | Payment Deferral |  |
Financing Receivable, Modifications [Line Items] |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, amount | $ 0 |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 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
Financing Receivable, Excluding Accrued Interest, Modified in Period, Percentage | 0.07% | 0.08%

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