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Goodwill (Details 1) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Impairment charge increase/(decrease) due to assumptions and factor change  
Credit-adjusted risk-free rate as positive change 10.00%
Credit-adjusted risk-free rate as negative change (10.00%)
After-tax cash flows as positive change 10.00%
After-tax cash flows as negative change (10.00%)
Fuel Specialties [Member]
  
Impairment charge increase/(decrease) due to assumptions and factor change  
Credit-adjusted risk-free rate, Approximate Increase/ (Decrease) to Impairment Charge as positive change 0
Credit-adjusted risk-free rate, Approximate Increase/ (Decrease) to Impairment Charge as negative change 0
After-tax cash flows, Approximate Increase/ (Decrease) to Impairment Charge as positive change 0
After-tax cash flows, Approximate Increase/ (Decrease) to Impairment Charge as negative change 0
Performance Chemicals [Member]
  
Impairment charge increase/(decrease) due to assumptions and factor change  
Credit-adjusted risk-free rate, Approximate Increase/ (Decrease) to Impairment Charge as positive change 0
Credit-adjusted risk-free rate, Approximate Increase/ (Decrease) to Impairment Charge as negative change 0
After-tax cash flows, Approximate Increase/ (Decrease) to Impairment Charge as positive change 0
After-tax cash flows, Approximate Increase/ (Decrease) to Impairment Charge as negative change 0
Octane Additives [Member]
  
Impairment charge increase/(decrease) due to assumptions and factor change  
Credit-adjusted risk-free rate, Approximate Increase/ (Decrease) to Impairment Charge as positive change 0
Credit-adjusted risk-free rate, Approximate Increase/ (Decrease) to Impairment Charge as negative change 0
After-tax cash flows, Approximate Increase/ (Decrease) to Impairment Charge as positive change 2.4
After-tax cash flows, Approximate Increase/ (Decrease) to Impairment Charge as negative change 2.4