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Income Taxes (Narrative) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Operating Loss Carryforwards [Line Items] |  |
Tax credit carryforward, amount | $ 45 | $ 51
Allocations for bad debt deductions of former thrift subsidiaries included in retained earnings | $ 100 | $ 100

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- Definition Allocation for bad debt deductions of former thrift subsidiaries for which no income tax has been provided which is included in retained earnings + References No definition available. + 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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- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319 + Details
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