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Income Taxes (Details) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($) country	Mar. 31, 2015	Dec. 31, 2015 USD ($)
Income Tax Disclosure [Abstract]
Effective income tax rate (as percent)	39.80%	41.50%
U.S. Federal statutory rate (as percent)	35.00%
Gross unrecognized tax benefits, including interest and penalties	$ 39.4		$ 38.9
Related tax benefits	1.0		1.0
Net unrecognized tax benefits	$ 38.4		$ 37.9
Number of countries and territories in which the Company operates | country	80
Minimum
Income Tax [Line Items]
Expected annual effective income tax rate (as percent)	37.00%
Maximum
Income Tax [Line Items]
Expected annual effective income tax rate (as percent)	38.00%

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Expected Annual Effective Income Tax Rate Pertaining to Continuing Operations

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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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 13
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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The amount of the additional liability or refund received or expected based on a final settlement with a taxing authority.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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