Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Valuation Allowance [Line Items]
Income tax expense	$ 18.4	$ 24.7
Effective income tax rate	(15.90%)	(1546.90%)
Loss before income taxes and non-controlling interests	$ (116.0)	$ (1.6)
Unrecognized tax benefit	118.0		$ 112.0
Reduction in effective tax rate	92.8
Accrued interest and penalties related to unrecognized tax benefits	18.8		$ 17.5
Interest and penalties recognized	1.0	$ 0.3
Possible reduction in tax benefits from lapse of applicable statute of limitations	10.0
Net Operating Loss [Member]
Valuation Allowance [Line Items]
Change in valuation allowance	$ 59.6