Consolidated Statements of Comprehensive Income (Loss) (Parentheticals) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Tax expense (benefit) on current period cash flow hedging activity	$ 0.2	$ (3.3)	$ (4.2)
Tax expense on reclassification of hedging activities into earnings	2.6	4.2	2.1
Tax expense (benefit) on current period pension and postretirement plan activity into earnings	(7.3)	(1.6)	0.8
Tax expense on reclassification of pension and postretirement into earnings	$ 1.8	$ 1.3	$ 1.7