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Summary of Significant Accounting Policies (Details)
12 Months Ended
Dec. 31, 2013
Maximum
 
Plant Turnaround Costs  
Turnaround period 5 years
Buildings | Minimum
 
Property, Plant and Equipment  
Depreciable life 10 years
Buildings | Maximum
 
Property, Plant and Equipment  
Depreciable life 45 years
Production facilities and related assets | Minimum
 
Property, Plant and Equipment  
Depreciable life 10 years
Production facilities and related assets | Maximum
 
Property, Plant and Equipment  
Depreciable life 30 years