Income Taxes Effective Income Tax Rate (Details)	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Statutory federal income tax rate	35.00%	35.00%	35.00%
Increase (decrease) in tax rate resulting from:
State income taxes (net of federal income tax benefit)	1.70%	1.80%	1.50%
Foreign income taxed at lower rate than U.S. statutory rate	(4.70%)	(4.60%)	(5.90%)
Separation related adjustments for final resolution of uncertain tax positions	(1.90%)	0.00%	0.00%
Research and Experimentation Credits, Federal Domestic Production Deductions and Other	3.00%	0.20%	(0.30%)
Effective income tax rate	27.10%	32.00%	30.90%

Research and Experimentation Credits, Federal Domestic Production Deductions and Other

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

+ References

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-Publisher FASB
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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 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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