Nature Of Operations And Significant Accounting Policies (Schedule Of Changes To Intangible Assets) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Accounting Policies [Abstract]
Balance at beginning of period, net of accumulated amortization	$ 353.5	$ 408.9
Amortization expense	31.5	37.9
Finite-Lived Intangible Assets, Translation Adjustments	(4.9)	(17.5)
Balance at end of period, net of accumulated amortization	$ 317.1	$ 353.5