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Fair Value Measurements (Schedule Of Carrying Amounts And Estimated Fair Values Of Financial Instruments) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Financial Assets |  |  |  |  |
Debt securities held to maturity |  | $ 751 |  | $ 950 |
Debt securities available for sale |  | 27,933 |  | 28,481 |
Other earning assets |  | 1,308 |  | 1,187 |
Derivative Assets | [1] | 105 |  | 412 |
Financial Liabilities |  |  |  |  |
Derivative Liabilities | [1] | 1,453 |  | 80 |
Fair value Discount On Loan Portfolio Amount |  | $ 4,500 |  | $ 220 |
Fair value Discount On Loan Portfolio Rate |  | 4.80% |  | 0.30% |
Capital Leases Carrying Amount Excluded |  | $ 1,500 |  | $ 1,400 |
Operating Leases Carrying Amount Excluded |  |  |  | 83 |
Estimate of Fair Value [Member] |  |  |  |  |
Financial Assets |  |  |  |  |
Cash and cash equivalents |  | 11,227 | [2] | 29,411 | [3]
Debt securities held to maturity |  | 751 | [2] | 950 | [3]
Debt securities available for sale |  | 27,933 | [2] | 28,481 | [3]
Loans held for sale |  | 354 | [2] | 1,003 | [3]
Loans (excluding leases), net of unearned income and allowance for loan losses |  | 89,540 | [2],[4],[5] | 85,086 | [3],[6],[7]
Other earning assets |  | 1,308 | [2] | 1,104 | [3],[8]
Derivative Assets |  | 2,609 | [2] | 1,111 | [3]
Financial Liabilities |  |  |  |  |
Derivative Liabilities |  | 3,378 | [2] | 1,012 | [3]
Deposits |  | 131,668 | [2],[9] | 139,101 | [3]
Long-term Borrowings |  | 2,376 | [2] | 2,847 | [3]
Loan commitments and letters of credit |  | 153 | [2] | 123 | [3]
Carrying Amount [Member] |  |  |  |  |
Financial Assets |  |  |  |  |
Cash and cash equivalents |  | 11,227 |  | 29,411 |
Debt securities held to maturity |  | 801 |  | 899 |
Debt securities available for sale |  | 27,933 |  | 28,481 |
Loans held for sale |  | 354 |  | 1,003 |
Loans (excluding leases), net of unearned income and allowance for loan losses |  | 94,044 | [4],[5] | 84,866 | [6],[7]
Other earning assets |  | 1,308 |  | 1,104 | [8]
Derivative Assets |  | 2,609 |  | 1,111 |
Financial Liabilities |  |  |  |  |
Derivative Liabilities |  | 3,378 |  | 1,012 |
Deposits |  | 131,743 | [9] | 139,072 |
Long-term Borrowings |  | 2,284 |  | 2,407 |
Loan commitments and letters of credit |  | 153 |  | 123 |
Level 1 [Member] |  |  |  |  |
Financial Assets |  |  |  |  |
Cash and cash equivalents |  | 11,227 |  | 29,411 |
Debt securities held to maturity |  | 0 |  | 0 |
Debt securities available for sale |  | 1,187 |  | 1,132 |
Loans held for sale |  | 0 |  | 0 |
Loans (excluding leases), net of unearned income and allowance for loan losses |  | 0 | [4],[5] | 0 | [6]
Other earning assets |  | 529 |  | 464 | [8]
Derivative Assets |  | 3 |  | 0 |
Financial Liabilities |  |  |  |  |
Derivative Liabilities |  | 2 |  | 0 |
Deposits |  | 0 | [9] | 0 |
Long-term Borrowings |  | 0 |  | 0 |
Loan commitments and letters of credit |  | 0 |  | 0 |
Level 2 [Member] |  |  |  |  |
Financial Assets |  |  |  |  |
Cash and cash equivalents |  | 0 |  | 0 |
Debt securities held to maturity |  | 751 |  | 950 |
Debt securities available for sale |  | 26,744 |  | 27,347 |
Loans held for sale |  | 335 |  | 899 |
Loans (excluding leases), net of unearned income and allowance for loan losses |  | 0 | [4],[5] | 0 | [6]
Other earning assets |  | 779 |  | 640 | [8]
Derivative Assets |  | 2,603 |  | 1,098 |
Financial Liabilities |  |  |  |  |
Derivative Liabilities |  | 3,375 |  | 1,009 |
Deposits |  | 131,668 | [9] | 139,101 |
Long-term Borrowings |  | 2,375 |  | 2,845 |
Loan commitments and letters of credit |  | 0 |  | 0 |
Level 3 [Member] |  |  |  |  |
Financial Assets |  |  |  |  |
Cash and cash equivalents |  | 0 |  | 0 |
Debt securities held to maturity |  | 0 |  | 0 |
Debt securities available for sale |  | 2 |  | 2 |
Loans held for sale |  | 19 |  | 104 |
Loans (excluding leases), net of unearned income and allowance for loan losses |  | 89,540 | [4],[5] | 85,086 | [6]
Other earning assets |  | 0 |  | 0 | [8]
Derivative Assets |  | 3 |  | 13 |
Financial Liabilities |  |  |  |  |
Derivative Liabilities |  | 1 |  | 3 |
Deposits |  | 0 | [9] | 0 |
Long-term Borrowings |  | 1 |  | 2 |
Loan commitments and letters of credit |  | $ 153 |  | $ 123 |
[1] | Derivatives in a gain position are recorded as other assets and derivatives in a loss position are recorded as other liabilities on the consolidated balance sheets.
[2] | Estimated fair values are consistent with an exit price concept. The assumptions used to estimate the fair values are intended to approximate those that a market participant would use in a hypothetical orderly transaction. In estimating fair value, the Company makes adjustments for estimated changes in interest rates, market liquidity and credit spreads in the periods they are deemed to have occurred.
[3] | Estimated fair values are consistent with an exit price concept. The assumptions used to estimate the fair values are intended to approximate those that a market participant would use in a hypothetical orderly transaction. In estimating fair value, the Company makes adjustments for estimated changes in interest rates, market liquidity and credit spreads in the periods they are deemed to have occurred.
[4] | Excluded from this table is the sales-type, direct financing, and leveraged lease carrying amount of $1.5 billion at December 31, 2022.
[5] | The estimated fair value of portfolio loans assumes sale of the loans to a third-party financial investor. Accordingly, the value to the Company if the loans were held to maturity is not reflected in the fair value estimate. The fair value discount on the loan portfolio's net carrying amount at December 31, 2022 was $4.5 billion or 4.8 percent.
[6] | Excluded from this table is the sales-type, direct financing, and leveraged lease carrying amount of $1.4 billion at December 31, 2021.
[7] | The estimated fair value of portfolio loans assumes sale of the loans to a third-party financial investor. Accordingly, the value to the Company if the loans were held to maturity is not reflected in the fair value estimate. The fair value premium on the loan portfolio's net carrying amount at December 31, 2021 was $220 million or 0.3 percent.
[8] | Excluded from this table is the operating lease carrying amount of $83 million at December 31, 2021.
[9] | The fair value of non-interest-bearing demand accounts, interest-bearing checking accounts, savings accounts, money market accounts and certain other time deposit accounts is the amount payable on demand at the reporting date (i.e., the carrying amount). Fair values for certificates of deposit are estimated by using discounted cash flow analyses, based on market spreads to benchmark rates.

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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124260329&loc=d3e26610-111562 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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