Pension and Other Post-Retirement Benefit Plans (Weighted-Average Assumptions Used Net Periodic Benefit Cost) (Details)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
U.S.
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.60%	5.39%	5.90%
Rate of compensation increase	4.00%	4.00%	4.00%
Expected rate of return on plan assets	9.00%	9.00%	9.00%
International
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.54%	5.00%	5.57%
Rate of compensation increase	4.05%	4.20%	4.18%
Expected rate of return on plan assets	7.62%	6.98%	7.48%
Other Post-retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.60%	5.40%	5.90%