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Loans And The Allowance For Credit Losses(Aging and Non-Accrual Performance for Modifications to Troubled Borrowers (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | $ 411 | $ 887
Financing receivable no allowance | 119 | 280
Commercial |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 53 | 561
Investor Real Estate |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 172 | 213
Consumer |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 186 | 113
Current |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 233 | 593
Current | Commercial |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 36 | 356
Current | Investor Real Estate |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 66 | 151
Current | Consumer |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 131 | 86
Financial Asset, 30 to 89 Days Past Due |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 32 | 17
Financial Asset, 30 to 89 Days Past Due | Commercial |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 0 | 0
Financial Asset, 30 to 89 Days Past Due | Investor Real Estate |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 0 | 0
Financial Asset, 30 to 89 Days Past Due | Consumer |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 32 | 17
Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 13 | 10
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 0 | 5
Financial Asset, Equal to or Greater than 90 Days Past Due | Investor Real Estate |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 0 | 0
Financial Asset, Equal to or Greater than 90 Days Past Due | Consumer |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 13 | 5
Non-performing [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 133 | 267
Non-performing [Member] | Commercial |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 17 | 200
Non-performing [Member] | Investor Real Estate |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 106 | 62
Non-performing [Member] | Consumer |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 10 | 5
Commercial And Industrial [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 50 | 555
Commercial And Industrial [Member] | Current |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 34 | 355
Commercial And Industrial [Member] | Financial Asset, 30 to 89 Days Past Due |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 0 | 0
Commercial And Industrial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 0 | 5
Commercial And Industrial [Member] | Non-performing [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 16 | 195
Commercial Real Estate Mortgage - Owner-Occupied [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 3 | 3
Commercial Real Estate Mortgage - Owner-Occupied [Member] | Current |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 2 | 1
Commercial Real Estate Mortgage - Owner-Occupied [Member] | Financial Asset, 30 to 89 Days Past Due |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 0 | 0
Commercial Real Estate Mortgage - Owner-Occupied [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 0 | 0
Commercial Real Estate Mortgage - Owner-Occupied [Member] | Non-performing [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 1 | 2
Commercial Real Estate Construction - Owner-Occupied [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period |  | 3
Commercial Real Estate Construction - Owner-Occupied [Member] | Current |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period |  | 0
Commercial Real Estate Construction - Owner-Occupied [Member] | Financial Asset, 30 to 89 Days Past Due |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period |  | 0
Commercial Real Estate Construction - Owner-Occupied [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period |  | 0
Commercial Real Estate Construction - Owner-Occupied [Member] | Non-performing [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period |  | 3
Commercial investor real estate mortgage [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 172 | 213
Commercial investor real estate mortgage [Member] | Current |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 66 | 151
Commercial investor real estate mortgage [Member] | Financial Asset, 30 to 89 Days Past Due |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 0 | 0
Commercial investor real estate mortgage [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 0 | 0
Commercial investor real estate mortgage [Member] | Non-performing [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 106 | 62
Residential First Mortgage [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 164 | 99
Residential First Mortgage [Member] | Current |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 113 | 75
Residential First Mortgage [Member] | Financial Asset, 30 to 89 Days Past Due |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 31 | 16
Residential First Mortgage [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 13 | 5
Residential First Mortgage [Member] | Non-performing [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 7 | 3
Home Equity Lines of Credit[Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 10 | 5
Home Equity Lines of Credit[Member] | Current |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 9 | 5
Home Equity Lines of Credit[Member] | Financial Asset, 30 to 89 Days Past Due |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 0 | 0
Home Equity Lines of Credit[Member] | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 0 | 0
Home Equity Lines of Credit[Member] | Non-performing [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 1 | 0
Home Equity Loan [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 12 | 9
Home Equity Loan [Member] | Current |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 9 | 6
Home Equity Loan [Member] | Financial Asset, 30 to 89 Days Past Due |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 1 | 1
Home Equity Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | 0 | 0
Home Equity Loan [Member] | Non-performing [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Modifications to Troubled Borrowers, modified in the previous 12-month period | $ 2 | $ 2

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