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Variable Interest Entities (VIEs) (Impact Of VIEs On The Consolidated Statements Of Comprehensive Income) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Variable Interest Entity [Line Items] |  |  |
Other noninterest income | $ 83 | $ 31 | $ 88
Provision for income taxes | 263 | 325 | 322
Variable Interest Entity |  |  |
Variable Interest Entity [Line Items] |  |  |
Other noninterest income | (4) | 0 | 1
Provision for income taxes | (17) | (14) | (14)
Low income housing tax credits | Variable Interest Entity |  |  |
Variable Interest Entity [Line Items] |  |  |
Provision for income taxes, amortization of LIHTC investments | 69 | 72 | 71
Provision for income taxes, affordable housing tax credits and other tax benefits | (65) | (68) | (68)
Other tax benefits related to tax credit entities | Variable Interest Entity |  |  |
Variable Interest Entity [Line Items] |  |  |
Provision for income taxes, affordable housing tax credits and other tax benefits | $ (21) | $ (18) | $ (17)

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- Definition Amount of affordable housing tax credits and other tax benefits recognized. + References Reference 1: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Topic 323 -SubTopic 740 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481543/323-740-50-2 + Details
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- Definition Amount of amortization expense of investment in qualified affordable housing projects. + References Reference 1: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Topic 323 -SubTopic 740 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481543/323-740-50-2 + Details
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