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Financial Instruments, Derivatives and Hedging Activities Balance Sheet Location (Details)
lb in Millions, gal in Millions, bu in Millions, MMBTU in Millions, $ in Millions
Mar. 31, 2016
USD ($)
MMBTU
lb
gal
bu
Dec. 31, 2015
USD ($)
Corn Commodity    
Fair value of commodity contracts    
Futures contract (in bushels for corn and gallons for ethanol) | bu 103  
Soy Bean Oil    
Fair value of commodity contracts    
Soybean oil futures contract (in pounds) | lb 40  
Natural Gas Commodity    
Fair value of commodity contracts    
Natural gas futures contract (in mmbtu) | MMBTU 16  
Ethanol Commodity    
Fair value of commodity contracts    
Futures contract (in bushels for corn and gallons for ethanol) | gal 4  
Designated as Hedging Instrument | Cash Flow Hedging    
Fair value of commodity contracts    
Fair value of assets $ 10 $ 11
Fair value of liabilities 42 37
Designated as Hedging Instrument | Commodity and Foreign Currency Contracts | Accounts Receivable, Net    
Fair value of commodity contracts    
Fair value of assets 6 6
Designated as Hedging Instrument | Commodity and Foreign Currency Contracts | Accounts Payable and Accrued Liabilities    
Fair value of commodity contracts    
Fair value of liabilities 38 33
Designated as Hedging Instrument | Commodity and Foreign Currency Contracts | Other Assets    
Fair value of commodity contracts    
Fair value of assets 4 5
Designated as Hedging Instrument | Commodity and Foreign Currency Contracts | Non Current Liabilities    
Fair value of commodity contracts    
Fair value of liabilities $ 4 $ 4