| **Income Taxes (Narrative) (Details) - USD ($)**                               | 12 Months Ended |
|--------------------------------------------------------------------------------|-----------------|
||
| **Income Tax Contingency [Line Items]**                                        |            |   |   |
| Unrecognized tax benefits                                                      | $ 0             | $ 0 |   |
| Interest income (expense)                                                      | 0               | 0 | $ 0 |
| Income tax penalties expense                                                   | 0               | 0 | 0 |
| Accrued interest and penalties                                                 | 0               | 0 |   |
| Effective income tax rate reconciliation, Tax Cuts and Jobs Act, amount        |            | 6,000,000 | (83,000,000) |
| Deferred tax liability on undistributed income related to a foreign subsidiary | 0               |   |   |
| Foreign tax expense (benefit) on income from continuing operations             | (19,000,000)    | (5,000,000) | 1,000,000 |
| Income (loss) from continuing foreign operations                               | 43,000,000      | 22,000,000 | 39,000,000 |
| Operating loss carryforwards                                                   | 0               |   |   |
| Tax credit carryforward, amount                                                | 2,000,000       |   |   |
| Valuation allowance                                                            | 0               | 0 |   |
| Federal Income Taxes                                                           |            |   |   |
| **Income Tax Contingency [Line Items]**                                        |            |   |   |
| Related party transaction, amounts of transaction                              | 239,000,000     | $ 275,000,000 | $ 127,000,000 |
| Foreign Tax Authority                                                          |            |   |   |
| **Income Tax Contingency [Line Items]**                                        |            |   |   |
| Operating loss carryforwards                                                   | 42,000,000      |   |   |
| Tax credit carryforward, amount                                                | 2,000,000       |   |   |
| Operating loss carryforwards, subject to expiration                            | $ 2,000,000     |   |   |

| X                                                                                                                                                                                                                                                                                    |
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Operating Loss Carryforwards, Subject to Expiration
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| - Definition
Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.
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Amount of deferred tax liability not recognized because of the exceptions to comprehensive recognition of deferred taxes related to undistributed earnings of foreign subsidiaries.
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| - Definition
Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to Tax Cuts and Jobs Act.
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| - Definition
Amount of current and deferred foreign income tax expense (benefit) attributable to income (loss) from continuing operations.
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The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.
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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.
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| - Definition
The net amount of operating interest income (expense).
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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.
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Amount of transactions with related party during the financial reporting period.
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The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.
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Amount of unrecognized tax benefits.
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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.
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Amount of expense for penalties related to a tax position claimed or expected to be claimed in the tax return.
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