Income Taxes - Income and Taxes from Cont. Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income (loss) from continuing operations before income taxes [Abstract]
U.S.	$ (23.2)	$ (79.4)	$ (58.1)
Foreign	64.3	30.4	197.7
Income (loss) from continuing operations before tax	41.1	(49.0)	139.6
Current tax expense (benefit)
U.S. federal	(1.0)	(3.8)	0.5
State	(0.2)	(0.8)	1.5
Foreign	60.6	69.7	81.9
Current tax expense	59.4	65.1	83.9
Deferred Income Taxes and Tax Credits [Abstract]
U.S. federal	7.7	(7.6)	(20.6)
State	0.0	(1.9)	(1.9)
Foreign	(0.6)	(18.9)	(12.1)
Deferred tax benefit	7.1	(28.4)	(34.6)
Provision (benefit) for income taxes of continuing operations	66.5	36.7	49.3
Comprehensive provision (benefit) for income taxes allocable to
Continuing operations	66.5	36.7	49.3
Discontinued operations	(1.0)	0.4	7.4
Provision (benefit) for income taxes	(0.7)	(43.0)	141.0
Equity	1.8	0.6	2.8
Comprehensive provision (benefit) for income taxes	$ 66.6	$ (5.3)	$ 200.5