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Credit Quality And Allowance For Credit Losses (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Loan interest receivable | $ 296 |  | $ 261
Commitments to lend additional funds to TDR borrowers | $ 0 |  | $ 0
Payment Deferral |  |  |
Minimum period loan terms were extended | 90 days | 90 days |
/ |  |  |
Minimum period loan terms were extended | 90 days | 90 days |
Subsequent default during period |  | $ 0 |

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- Definition Days that a principal or interest payment is past due to be defined as a subsequent default + References No definition available. + Details
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- Definition Loan interest receivable + References No definition available. + Details
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- Definition Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -Subparagraph (a)(2) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953682-111524 + Details
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- Definition Amount of unfunded portion of contractual agreement to lend funds to borrower for financing receivable modified as troubled debt restructuring. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=121585226&loc=d3e18794-111554 + Details
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