Income Taxes (Components of Income Tax Expense (Benefit)) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current tax expense (benefit):
Federal	$ (11.5)	$ 12.0	$ (8.6)
State	(0.2)	3.4	(0.4)
Foreign	51.9	52.6	40.2
Deferred tax expense (benefit):
Federal	9.0	5.7	19.3
State	(0.6)	(0.6)	1.7
Foreign	(9.8)	5.5	(13.6)
Income Tax Expense (Benefit)	$ 38.8	$ 78.6	$ 38.6