Discontinued Operations (Schedule Of Pre-Tax Loss on Discontinued Operations) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Other non-operating expense		$ 23.5	$ 10.5	$ 2.0
Income tax (expense) benefit	$ 43.4	41.8	2.5	3.6
Net gain (loss) on disposal of discontinued business		$ 41.6	(14.5)	$ (6.4)
DLW [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Recognition of pension accumulated other comprehensive income			(14.7)
Transaction related fees			(3.4)
Reserve for previous intercompany receivables			(1.1)
Recognition of cumulative foreign currency translation adjustments			$ 5.7
Other non-operating expense		$ 0.8
(Loss) on disposal of discontinued business before income tax		(0.8)	$ (13.5)
Income tax (expense) benefit		42.0	1.2
Net gain (loss) on disposal of discontinued business		$ 41.2	$ (12.3)