Shareholders' Equity (Schedule Of Accumulated Other Comprehensive Income Activity) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	[1]	$ (495.5)		$ (371.6)
Other comprehensive (loss) income before reclassifications, net of tax (expense) benefit	[1]	(34.0)		(146.5)
Amounts reclassified from accumulated other comprehensive (loss) income	[1]	42.1		22.6
Net current period other comprehensive (loss) income		8.1	[1]	(123.9)	[1]	$ 99.8
Ending Balance	[1]	(487.4)		(495.5)		(371.6)
Other comprehensive income before reclassifications, tax (expense) benefit		4.6		76.4
Foreign Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	[1]	(8.3)		21.3
Other comprehensive (loss) income before reclassifications, net of tax (expense) benefit	[1]	(25.5)		(29.6)
Net current period other comprehensive (loss) income	[1]	(25.5)		(29.6)
Ending Balance	[1]	(33.8)		(8.3)		21.3
Derivative Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	[1]	(4.0)		(0.7)
Other comprehensive (loss) income before reclassifications, net of tax (expense) benefit	[1]	3.5		1.1
Amounts reclassified from accumulated other comprehensive (loss) income	[1]	(2.8)		(4.4)
Net current period other comprehensive (loss) income	[1]	0.7		(3.3)
Ending Balance	[1]	(3.3)		(4.0)		(0.7)
Other comprehensive income before reclassifications, tax (expense) benefit		(1.8)		(0.8)
Pension And Postretirement Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	[1]	(483.2)		(392.2)
Other comprehensive (loss) income before reclassifications, net of tax (expense) benefit	[1]	(12.0)		(118.0)
Amounts reclassified from accumulated other comprehensive (loss) income	[1]	44.9		27.0
Net current period other comprehensive (loss) income	[1]	32.9		(91.0)
Ending Balance	[1]	(450.3)		(483.2)		$ (392.2)
Other comprehensive income before reclassifications, tax (expense) benefit		$ 6.4		$ 77.2

[1] Amounts are net of tax