Investments in and Advances to Affiliates Results for affiliates (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Net sales	$ 1,356.9	$ 1,383.6	$ 1,061.0
Net loss	(181.3)	(39.0)	(120.9)
Current assets	656.8	713.6
Total assets	2,139.9	2,410.6
Equity	1,000.9	1,217.8
Total liabilities and stockholders' equity	2,139.9	2,410.6
Equity Method Investee [Member]
Net sales	188.6	241.9	213.7
Net loss	(53.7)	(12.8)	(21.8)
Current assets	50.0	57.3
Long term assets	168.9	211.4
Total assets	218.9	268.7
Total liabilities	41.4	45.1
Equity	177.5	223.6
Total liabilities and stockholders' equity	$ 218.9	$ 268.7