Income Taxes (Schedule Of Significant Deferred Tax Assets And Liabilities) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Income Taxes [Abstract]
Pensions and postretirement	$ 489.3	$ 311.8
Net operating loss and other tax carryforwards	339.3	306.2
Accrued liabilities	178.5	174.2
Other	81.8	101.5
Total deferred tax assets	1,088.9	893.7
Valuation allowance	(273.2)	(259.5)
Net deferred tax assets	815.7	634.2
Accelerated depreciation	(257.7)	(275.0)
Intangible assets	(212.5)	(335.3)
Other	(69.6)	(74.9)
Total deferred tax liabilities	(539.8)	(685.2)
Net deferred tax assets (liabilities)	$ 275.9	$ (51.0)