Income Taxes (Summary Of Income Tax (Expense) Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current income tax expense (benefit):
Federal	$ (21.6)	$ (36.1)	$ (18.2)
State	(2.2)	(3.1)	(2.8)
Foreign	(26.6)	(17.2)	(22.5)
Total current income tax expense (benefit):	50.4	56.4	43.5
Deferred income tax expense (benefit):
Federal	33.1	36.7	(11.9)
State	(4.5)	4.6	(2.8)
Foreign	(1.2)	3.9	0.1
Total deferred income tax (benefit) expense	(27.4)	(45.2)	14.6
Income tax expense	$ 23.0	$ 11.2	$ 58.1