Retirement Benefits (Weighted Average Actuarial Assumptions Utilized) (Details)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Pension Plans, Defined Benefit [Member]
Discount rate (for expense)	5.59%	6.00%
Expected return on plan assets	8.19%	8.18%
Rate of compensation increase (for expense)	4.08%	4.16%
Discount rate (for benefit obligation)	4.91%	5.59%
Rate of compensation increase (for benefit obligation)	3.09%	4.09%
U.S. Pension Benefits [Member]
Discount rate (for expense)	5.90%	6.35%
Expected return on plan assets	8.75%	8.75%
Rate of compensation increase (for expense)	3.90%	3.90%
Discount rate (for benefit obligation)	5.15%	5.90%
Rate of compensation increase (for benefit obligation)	2.00%	3.90%
Non- U.S Pension Benefits [Member]
Discount rate (for expense)	5.41%	5.80%
Expected return on plan assets	7.91%	7.90%
Rate of compensation increase (for expense)	4.19%	4.30%
Discount rate (for benefit obligation)	4.77%	5.40%
Rate of compensation increase (for benefit obligation)	3.73%	4.20%
Postretirement Benefits [Member]
Discount rate (for expense)	5.81%	6.27%
Expected return on plan assets	0.00%	0.00%
Rate of compensation increase (for expense)	0.00%	0.00%
Discount rate (for benefit obligation)	5.05%	5.84%
Rate of compensation increase (for benefit obligation)	0.00%	0.00%
U.S. Postretirement Benefits [Member]
Discount rate (for expense)	5.95%	6.30%
Expected return on plan assets	0.00%	0.00%
Rate of compensation increase (for expense)	0.00%	0.00%
Discount rate (for benefit obligation)	5.10%	6.00%
Rate of compensation increase (for benefit obligation)	0.00%	0.00%
Non- U.S Postretirement Benefits [Member]
Discount rate (for expense)	5.51%	6.20%
Expected return on plan assets	0.00%	0.00%
Rate of compensation increase (for expense)	0.00%	0.00%
Discount rate (for benefit obligation)	4.95%	5.50%
Rate of compensation increase (for benefit obligation)	0.00%	0.00%