Income Taxes - Effective Income Tax Rate Reconciliation (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Effective Income Tax Rate Reconciliation [Abstract]
U.S. Federal income tax rate	(35.00%)	35.00%	35.00%
State and local taxes, net of Federal income tax benefit	(1.80%)	0.10%	0.10%
Foreign operations tax effect	(2.70%)	(41.40%)	(49.80%)
Research & experimentation tax credits	(3.90%)	(0.80%)	0.00%
Valuation allowance	104.60%	0.70%	11.60%
Tax contingencies	1.40%	0.60%	0.60%
Other, principally non-tax deductible items	(12.20%)	1.60%	2.30%
Prior period items	7.50%	0.00%	0.00%
Effective income tax rate	57.90%	(4.20%)	(0.20%)
Foreign Tax Authority
Effective Income Tax Rate Reconciliation [Abstract]
Effective income tax rate reconciliation, tax holiday	16.8	32.0	45.1
Income tax holiday benefit (usd per share)	0.20	0.38	0.53

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to revisions of previously reported income tax expense.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.

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The amount of income taxes from which a reporting entity is exempt or for which it will receive a reduction in income taxes as a result of the income tax holiday granted by the taxing jurisdiction.

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Per share amount effect of the income tax benefit resulting from the income tax holidays granted by taxing jurisdictions.

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