Pension and Postretirement Benefits (Details 7)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Benefit Obligation [Member] | Funded Plans [Member] | Funded Plans [Member]
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.11%	4.92%
Rate of compensation increase
Benefit Obligation [Member] | Funded Plans [Member] | Unfunded Pension Plans [Member]
Weighted-average assumptions used to determine benefit obligations
Discount rate	3.80%	4.75%
Rate of compensation increase	4.50%	4.50%
Benefit Obligation [Member] | Postretirement Benefit Plans [Member]
Weighted-average assumptions used to determine benefit obligations
Discount rate	3.85%	4.70%
Rate of compensation increase
Benefit Obligation [Member] | Foreign Pension Plans [Member]
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.06%	4.60%
Rate of compensation increase	3.00%	3.00%
Net Periodic Benefit Cost [Member] | Funded Plans [Member] | Funded Plans [Member]
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.93%	5.45%
Rate of compensation increase
Expected return on plan assets	4.20%	6.35%
Net Periodic Benefit Cost [Member] | Funded Plans [Member] | Unfunded Pension Plans [Member]
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.75%	5.10%
Rate of compensation increase	4.50%	4.50%
Expected return on plan assets
Net Periodic Benefit Cost [Member] | Postretirement Benefit Plans [Member]
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.70%	5.10%
Rate of compensation increase
Expected return on plan assets	4.65%	6.10%
Net Periodic Benefit Cost [Member] | Foreign Pension Plans [Member]
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.65%	5.10%
Rate of compensation increase	3.00%	3.00%
Expected return on plan assets	5.45%	5.50%