Pension and Postretirement Expense Level 4 (Details) - Weighted Average Rates used to Determine the Benefit Obligations
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
United States Pension Plans of US Entity, Defined Benefit [Member]    
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate 3.70% 4.40%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase 0.00% 0.00%
Foreign Pension Plans, Defined Benefit [Member]    
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate 2.20% 3.60%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase 3.00% 3.00%
United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]    
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate 3.40% 4.20%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase 0.00% 0.00%
Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year 7.50% 7.40%
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate 4.50% 4.50%
Defined Benefit Plan, Year that Rate Reaches Ultimate Trend Rate 2029 2029
Foreign Postretirement Benefit Plans, Defined Benefit [Member]    
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate 6.10% 7.20%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase 0.00% 0.00%
Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year 6.30% 6.30%
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate 4.50% 4.50%
Defined Benefit Plan, Year that Rate Reaches Ultimate Trend Rate 2030 2030