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Income Taxes (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018
Operating Loss Carryforwards [Line Items] |  |
Tax Credit Carryforward, Expiration Date | Dec. 31, 2038 |
Tax Credit Carryforward, Amount | $ 149 | $ 323
Allocations For Bad Debt Deductions Of Former Thrift Subsidiaries Included In Retained Earnings | $ 100 | $ 100
Income Tax Examination No Longer Subject To Prior Date | 2013 |

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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 We are no longer subject to state, local and foreign income tax examinations for periods prior to this year. + References No definition available. + Details
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