Income Taxes (Details 4)	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
U.S. federal statutory income tax rate	35.00%	35.00%	35.00%
State taxes (net of federal benefit)	0.10%	0.40%	0.20%
Transition Tax	45.00%	0.00%	0.00%
U.S. Corporate Tax Rate change	2.10%	0.00%	0.00%
Indefinite Reinvestment Assertion	3.50%	0.00%	0.00%
Foreign losses without tax benefit	1.50%	0.70%	1.10%
Foreign operations taxed at different rates	(11.50%)	(10.90%)	(12.90%)
Tax withholding refund	(0.00%)	(0.00%)	(1.90%)
Repatriation from current year foreign earnings	0.00%	1.60%	4.30%
Tax Holidays	(0.80%)	(1.20%)	(3.20%)
Stock awards excess tax benefit	(1.20%)	(1.20%)	(0.00%)
Swiss Legal Entity Reduction	(3.40%)	(0.00%)	(0.00%)
Audit Settlements	(2.70%)	(0.00%)	(0.00%)
Other	2.00%	1.30%	0.60%
Consolidated effective income tax rate	69.60%	25.70%	23.20%

Effective Income Tax Rate Reconciliation, Foreign Losses Without Tax Benefit

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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 disposition of a business not qualifying as a discontinued operation.

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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 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 exempt from income tax because of a tax holiday.

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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 settlements. Including, but not limited to, domestic tax settlement, foreign tax settlement, state and local tax settlement, and other tax settlements.

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