Restructuring and Asset Impairment Charges, net (Details 2)	12 Months Ended
	Dec. 31, 2011 Employee	Dec. 31, 2010 Employee
Planned Headcount Reductions
Planned reductions - January 1	113	257
Additional planned reductions	52	75
Actual reductions	(136)	(219)
Planned reductions - December 31	29	113