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Loans (Schedule Of Loan Portfolio, Net Of Unearned Income) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 96,727	$ 98,379
Financing Receivable, Unamortized Loan Cost (Fee) and Purchase Premium (Discount)	981	965
Commercial And Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	49,671	50,865
Commercial Real Estate Mortgage - Owner-Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	4,841	4,887
Commercial Real Estate Construction - Owner-Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	333	281
Commercial Investor Real Estate Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	6,567	6,605
Commercial Investor Real Estate Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	2,143	2,245
Residential First Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	20,094	20,207
Home Equity Lines of Credit[Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	3,150	3,221
Home Equity Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	2,390	2,439
Consumer Credit Card Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	1,445	1,341
OtherConsumerExitPortfolioMember [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	4	43
Other Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	6,089	6,245
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	54,845	56,033
Investor Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	8,710	8,850
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, net of unearned income	$ 33,172	$ 33,496

X

- Definition

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481628/310-20-40-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

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Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Name Accounting Standards Codification
-Section 50
-Paragraph 5
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

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Amount of unamortized loan commitment, origination, and other costs (fees) and purchase premium (discount) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481598/310-20-45-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-4

Reference 3: http://www.xbrl.org/2003/role/recommendedDisclosureRef
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-Paragraph 3
-SubTopic 20
-Topic 310
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481569/310-20-50-3

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