Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Income Taxes [Abstract]
Effective tax rate	26.80%	24.30%
Income tax expense reduction, resolution of foreign tax claims and reduction of income tax applied against overall foreign earnings		$ 13.3
Unrecognized tax benefits	$ 183.5
Unrecognized tax benefits that would impact effective tax rate	$ 174.7

Income Taxes [Abstract]

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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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Amount 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 foreign income tax settlement.

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Amount of unrecognized tax benefits.

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

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