Pension And Other Benefit Programs (Schedule Of Amounts In Accumulated Other Comprehensive) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (loss) gain	$ (520.2)	$ (553.5)
Prior service (cost) credit		(1.5)
Accumulated other comprehensive (loss) income	(520.2)	(555.0)
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (loss) gain	(8.9)	(22.4)
Prior service (cost) credit	(0.5)	(0.6)
Accumulated other comprehensive (loss) income	(9.4)	(23.0)
U.S. Defined-Benefit Retiree Health And Life Insurance Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (loss) gain	49.5	51.7
Prior service (cost) credit	1.1	0.1
Accumulated other comprehensive (loss) income	$ 50.6	$ 51.8