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Derivative And Credit-Related Financial Instruments (Schedule Of Net Gains Recognized In Income On Customer-Initiated Derivatives) (Details) - Customer-initiated and other activities - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Net derivative gain recognized in income | $ 99 | $ 67 | $ 76
Interest rate contracts | Other noninterest income |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Net derivative gain recognized in income | 36 | 26 | 27
Energy contracts | Other noninterest income |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Net derivative gain recognized in income | 18 | 1 | 5
Foreign exchange contracts | Foreign exchange income |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Net derivative gain recognized in income | $ 45 | $ 40 | $ 44

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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