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Loans And Allowance For Credit Losses (Summary Of Loans In The Personal Banking Portfolio Percentage Of Balances Outstanding ) (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Loans And Allowance For Credit Losses [Abstract] |  |
Credit Quality Personal Real Estate Loans Excluded | $ 191.1 | $ 198.2
Consumer Healthcare Loans Excluded | $ 188.1 | $ 199.2
Credit quality personal banking loan table percentage loans excluded | 7.00% |
Real Estate - Personal [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 100.00% | 100.00%
Real Estate - Personal [Member] | Under 600 [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 0.80% | 1.00%
Real Estate - Personal [Member] | 600 - 659 [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 1.90% | 1.90%
Real Estate - Personal [Member] | 660 - 719 [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 8.80% | 9.20%
Real Estate - Personal [Member] | 720 - 779 [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 24.50% | 25.70%
Real Estate - Personal [Member] | 780 and over [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 64.00% | 62.20%
Consumer [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 100.00% | 100.00%
Consumer [Member] | Under 600 [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 2.30% | 3.00%
Consumer [Member] | 600 - 659 [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 4.20% | 5.20%
Consumer [Member] | 660 - 719 [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 14.10% | 15.40%
Consumer [Member] | 720 - 779 [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 23.90% | 27.00%
Consumer [Member] | 780 and over [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 55.50% | 49.40%
Revolving Home Equity [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 100.00% | 100.00%
Revolving Home Equity [Member] | Under 600 [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 1.30% | 1.70%
Revolving Home Equity [Member] | 600 - 659 [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 2.40% | 1.90%
Revolving Home Equity [Member] | 660 - 719 [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 8.60% | 9.00%
Revolving Home Equity [Member] | 720 - 779 [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 22.20% | 21.50%
Revolving Home Equity [Member] | 780 and over [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 65.50% | 65.90%
Consumer Credit Card [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 100.00% | 100.00%
Consumer Credit Card [Member] | Under 600 [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 5.00% | 5.60%
Consumer Credit Card [Member] | 600 - 659 [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 12.30% | 14.30%
Consumer Credit Card [Member] | 660 - 719 [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 31.20% | 32.20%
Consumer Credit Card [Member] | 720 - 779 [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 28.00% | 26.60%
Consumer Credit Card [Member] | 780 and over [Member] |  |
Loans And Allowance For Loan Losses [Line Items] |  |
Percentage of Loan Category | 23.50% | 21.30%

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- Definition Recorded investment of consumer loans related to the Company's patient healthcare loan program. As the healthcare loans are guaranteed by the hospital, FICO scores are not obtained. These loans are excluded from the Credit Quality of Personal Banking Loans Portfolio Table. + References No definition available. + Details
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Balance Type: | debit
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- Definition Consumer and personal real estate loans, as a percentage of the personal banking portfolio, for which FICO scores are not obtained. These loans are excluded from the Schedule of Credit Quality Personal Banking Loan Table. + References No definition available. + Details
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- Definition Recorded investment of personal real estate loans for which FICO scores are not obtained. These loans are excluded from the Credit Quality of Personal Banking Loans Portfolio Table. + References No definition available. + Details
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- Definition Loans And Allowance For Loan Losses [Line Items] + References No definition available. + Details
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- Definition Recorded investment of loans in designated class currently in specified FICO range. + References No definition available. + Details
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- Details
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- Details
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