Income Taxes (Schedule Of Gross Unrecognized Tax Benefits Reconciliation) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Undistributed Earnings of Foreign Subsidiaries	$ 725.0
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance of liability as of January 1	46.5	$ 45.2	$ 40.7	$ 31.4
Increase as a result of tax positions taken during a prior year	0.5	1.5	2.0
Decrease as a result of tax positions taken during a prior year	(7.3)	(2.1)	(1.2)
Increase as a result of tax positions taken during the current year	10.3	9.2	11.2
Decrease as a result of settlements with taxing authorities	(1.2)	0.0	(1.1)
Reduction as a result of a lapse of the statute of limitations	(1.0)	(4.1)	(1.6)
Balance of liability as of December 31	$ 46.5	$ 45.2	$ 40.7	$ 31.4