Discontinued Operations And Assets And Liabilities Held For Sale (Components Of Assets And Liabilities Held For Sale In Condensed Consolidated Balance Sheets) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Discontinued Operations And Assets And Liabilities Held For Sale [Abstract]
Property, plant and equipment, net	$ 3.3	$ 3.8
Current assets	63.2	115.5
Other assets	0.3	0.3
Total assets held for sale	66.8	119.6
Current liabilities	59.1	62.0
Other long-term liabilities and deferred credits		0.1
Total liabilities held for sale	59.1	62.1
Net assets held for sale	$ 7.7	$ 57.5