v2.4.0.6
Asset Retirement Obligations (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Asset Retirement Obligations    
Carrying amount of asset retirement obligations $ 19 $ 43
Asset Retirement Obligation, Revision of Estimate (22) 3
Asset Retirement Obligation, Accretion Expense 4 3
Asset Retirement Obligation, Foreign Currency Translation (6) 2
Reduction of property, plant and equipment 6  
Reduction in cost of goods sold 12  
Fertilizer
   
Asset Retirement Obligations    
Asset Retirement Obligation, Revision of Estimate   2
Asset Retirement Obligation, sale of the nutrients assets   42
Agribusiness
   
Asset Retirement Obligations    
Asset Retirement Obligation, Revision of Estimate   1
Sugar and Bioenergy
   
Asset Retirement Obligations    
Asset Retirement Obligation, acquisition of Moema   $ 6