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Derivative And Credit-Related Financial Instruments (Schedule Of Net Gains Recognized In Income On Customer-Initiated Derivatives) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Net derivative gain recognized in income | $ 29 | $ 22 | $ 51 | $ 52
Customer-initiated and other activities |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Net derivative gain recognized in income | 29 | 22 | 51 | 52
Interest rate contracts | Customer-initiated and other activities | Other noninterest income |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Net derivative gain recognized in income | 10 | 9 | 19 | 24
Energy contracts | Customer-initiated and other activities | Other noninterest income |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Net derivative gain recognized in income | 6 | 2 | 8 | 6
Foreign exchange contracts | Customer-initiated and other activities | Foreign exchange income |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Net derivative gain recognized in income | $ 13 | $ 11 | $ 24 | $ 22

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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 https://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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