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Long Term Subordinated Notes (Tables) | 12 Months Ended
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Dec. 31, 2022
Long Term Subordinated Notes [Abstract] |
Schedule Of Outstanding Fixed To Floating Rate Long Term Subordinated Notes | Maturity Date December 31, 2022 December 31, 2021 Original Consolidated Consolidated Principal Balance Sheet Balance Sheet (Dollars in millions) Date Issued Amount Scheduled Final Amount Market Value Amount Market Value Long-term subordinated notes 4/26/2007 $ 400 5/15/2037 5/1/2067 $ 218 $ 187 $ 224 $ 216
Schedule Of Interest Expense Incurred In Connection With Long Term Subordinated Notes | Years Ended December 31, (Dollars in millions) 2022 2021 2020 Interest expense incurred $ 9 $ 6 $ 8

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- Definition Schedule of Interest Expense on Long Term Subordinated Notes [Table Text Block] + References No definition available. + Details
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- Definition Tabular disclosure of borrowings under subordinated debt agreements that qualify as available in computing net capital under SEC uniform net capital rules for broker-dealers, including restrictive covenants, collateral, interest rates and due dates, amounts due by date and amount owed in total. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
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