Pension and Other Postretirement Benefit Plans (Weighted-average assumptions used to determine net periodic cost) (Details)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
United States Pension Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	5.60%	5.75%	6.05%
Expected long-term rate of return on plan assets	7.75%	7.75%	7.75%
Rate of compensation increase	4.50%	4.50%	4.50%
Foreign Pension Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	5.20%	5.40%	5.90%
Expected long-term rate of return on plan assets	5.40%	5.50%	5.90%
Rate of compensation increase	3.50%	3.50%	3.50%
Other Postretirement Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Discount rate	5.60%	5.40%	5.80%
Initial rate	8.00%	8.00%	8.00%
Ultimate rate	5.00%	5.00%	5.00%
Year that ultimate rate will be reached	2015	2016	2017