Taxes - Reconciliation of the United States Federal Statutory Corporate Tax Rate to Company's Effective Tax Rate or Income Tax Provision (Details)	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income tax provision at federal statutory corporate tax rate	35.00%	35.00%	35.00%
State income taxes, net of federal benefit	1.00%	0.00%	0.00%
Foreign tax rate differential	(17.00%)	(19.00%)	(19.00%)
Tax credit	(1.00%)	(0.00%)	(0.00%)
Discrete tax benefit related to employee stock option exercises	(7.00%)	(0.00%)	(0.00%)
Other discrete tax events	0.00%	(2.00%)	(1.00%)
Other	0.00%	1.00%	1.00%
Income tax provision on continuing operations	11.00%	15.00%	16.00%

Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Percent

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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 changes in the income tax rates.

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