| **Income Taxes (Narrative) (Details) (USD $)**                       | 12 Months Ended |
|----------------------------------------------------------------------|-----------------|
||
| **Income Taxes [Line Items]**                                        |            |   |   |
| Deferred Tax Assets, Valuation Allowance                             | $ 368,000,000   | $ 228,000,000 |   |
| Undistributed Foreign Earnings                                       | 3,600,000,000   |   |   |
| Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense | 2,000,000       | 22,000,000 | 1,000,000 |
| Accrued interest and penalties                                       | 37,000,000      | 69,000,000 | 35,000,000 |
| Domestic Tax Authority [Member]                                      |            |   |   |
| **Income Taxes [Line Items]**                                        |            |   |   |
| Deferred Tax Assets, Operating Loss Carryforwards, Domestic          | 22,000,000      |   |   |
| Tax Credit Carryforward, Amount                                      | 4,000,000       |   |   |
| State and Local Jurisdiction [Member]                                |            |   |   |
| **Income Taxes [Line Items]**                                        |            |   |   |
| Tax Credit Carryforward, Amount                                      | 71,000,000      |   |   |
| Foreign Tax Authority [Member]                                       |            |   |   |
| **Income Taxes [Line Items]**                                        |            |   |   |
| Operating Loss Carryforwards, Foreign                                | $ 380,000,000   |   |   |

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| - Definition
The amount as of the balance sheet date of the estimated undistributed earnings of subsidiaries and other recognized entities in countries outside the country of domicile which will increase future taxable income when such earnings are distributed into the country of domicile.
+ References
No definition available.
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards.
+ References
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| - Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign operating loss carryforwards.
+ References
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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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| - Definition
The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.
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| - Definition
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.
+ References
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| - Definition
Amount of expense 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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