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Commitments and Contingent Liabilities Variable Interest Entities (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Other Assets [Member] |  |
Variable Interest Entity [Line Items] |  |
Amortization Method Qualified Affordable Housing Project Investments | $ 390 | $ 352
Other Liabilities [Member] |  |
Variable Interest Entity [Line Items] |  |
Qualified Affordable Housing Project Investments, Commitment | $ 81 | $ 106

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- Definition Amount of investment in qualified affordable housing projects. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 740 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=116633289&loc=SL49122993-202985 + Details
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- Definition Amount of commitment or contingent commitments to qualified affordable housing project investments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 740 -Section 50 -Paragraph 2 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=116633289&loc=SL49122993-202985 + Details
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