Lines of Credit and Financing Arrangements (Details 2) (Eligible amounts available and beneficial interest sold [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Eligible amounts available and beneficial interest sold [Member]
Eligible amounts available and beneficial interests sold
Eligible amount available under the ASA on qualified accounts receivable	$ 150.0	$ 100.0
Beneficial interest sold	0	0
Remaining amount available	$ 150.0	$ 100.0