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Price Risk Management Activities (Details) lb in Thousands, bu in Thousands, MMBTU in Thousands, $ in Millions | 1 Months Ended | 3 Months Ended
--- | --- | ---
Apr. 30, 2016 | Mar. 31, 2016 USD ($) MMBTU lb bu MBbls | Mar. 31, 2015 USD ($)
Price Risk Management Activities (Textual) |  |  |
Compliance program costs | $ |  | $ 161 | $ 133
Foreign Currency Contracts [Member] |  |  |
Price Risk Management Activities (Textual) |  |  |
Monetary notional amount of derivative liabilities | $ |  | $ 261 |
Foreign Currency Contracts [Member] | Subsequent Event [Member] |  |  |
Price Risk Management Activities (Textual) |  |  |
Foreign currency commitments maturity date | Apr. 30, 2016 |  |
Economic Hedging [Member] | Swap, Maturity Current Year [Member] | Long (Purchases) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 24,120 |
Economic Hedging [Member] | Swap, Maturity Current Year [Member] | Short (Sales) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 23,676 |
Economic Hedging [Member] | Swap, Maturity Year Two [Member] | Long (Purchases) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 0 |
Economic Hedging [Member] | Swap, Maturity Year Two [Member] | Short (Sales) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 0 |
Economic Hedging [Member] | Future, Maturity Current Year [Member] | Long (Purchases) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 85,898 |
Economic Hedging [Member] | Future, Maturity Current Year [Member] | Long (Purchases) [Member] | Corn (in bushels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  | 18,180 |
Economic Hedging [Member] | Future, Maturity Current Year [Member] | Long (Purchases) [Member] | Soybean Oil (in pounds) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, pounds | lb |  | 67,920 |
Economic Hedging [Member] | Future, Maturity Current Year [Member] | Short (Sales) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 89,219 |
Economic Hedging [Member] | Future, Maturity Current Year [Member] | Short (Sales) [Member] | Corn (in bushels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  | 36,810 |
Economic Hedging [Member] | Future, Maturity Current Year [Member] | Short (Sales) [Member] | Soybean Oil (in pounds) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, pounds | lb |  | 122,880 |
Economic Hedging [Member] | Future, Maturity Year Two [Member] | Long (Purchases) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 0 |
Economic Hedging [Member] | Future, Maturity Year Two [Member] | Long (Purchases) [Member] | Corn (in bushels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  | 10 |
Economic Hedging [Member] | Future, Maturity Year Two [Member] | Long (Purchases) [Member] | Soybean Oil (in pounds) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, pounds | lb |  | 0 |
Economic Hedging [Member] | Future, Maturity Year Two [Member] | Short (Sales) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 0 |
Economic Hedging [Member] | Future, Maturity Year Two [Member] | Short (Sales) [Member] | Corn (in bushels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  | 345 |
Economic Hedging [Member] | Future, Maturity Year Two [Member] | Short (Sales) [Member] | Soybean Oil (in pounds) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, pounds | lb |  | 0 |
Economic Hedging [Member] | Forward Contracts, Maturity Current Year [Member] | Long (Purchases) [Member] | Corn (in bushels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  | 15,770 |
Economic Hedging [Member] | Forward Contracts, Maturity Year Two [Member] | Long (Purchases) [Member] | Corn (in bushels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  | 335 |
Trading Derivatives [Member] | Swap, Maturity Current Year [Member] | Long (Purchases) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 5,240 |
Trading Derivatives [Member] | Swap, Maturity Current Year [Member] | Short (Sales) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 5,240 |
Trading Derivatives [Member] | Swap, Maturity Year Two [Member] | Long (Purchases) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 300 |
Trading Derivatives [Member] | Swap, Maturity Year Two [Member] | Short (Sales) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 300 |
Trading Derivatives [Member] | Future, Maturity Current Year [Member] | Long (Purchases) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 33,036 |
Trading Derivatives [Member] | Future, Maturity Current Year [Member] | Long (Purchases) [Member] | Corn (in bushels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  | 3 |
Trading Derivatives [Member] | Future, Maturity Current Year [Member] | Long (Purchases) [Member] | Natural Gas (in millions of Btus) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, millions of Btus | MMBTU |  | 1,400 |
Trading Derivatives [Member] | Future, Maturity Current Year [Member] | Short (Sales) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 32,792 |
Trading Derivatives [Member] | Future, Maturity Current Year [Member] | Short (Sales) [Member] | Corn (in bushels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  | 3 |
Trading Derivatives [Member] | Future, Maturity Year Two [Member] | Long (Purchases) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 3,550 |
Trading Derivatives [Member] | Future, Maturity Year Two [Member] | Long (Purchases) [Member] | Corn (in bushels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  | 0 |
Trading Derivatives [Member] | Future, Maturity Year Two [Member] | Long (Purchases) [Member] | Natural Gas (in millions of Btus) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, millions of Btus | MMBTU |  | 0 |
Trading Derivatives [Member] | Future, Maturity Year Two [Member] | Short (Sales) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 3,550 |
Trading Derivatives [Member] | Future, Maturity Year Two [Member] | Short (Sales) [Member] | Corn (in bushels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  | 0 |
Trading Derivatives [Member] | Options Held, Maturity Current Year [Member] | Long (Purchases) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 22,800 |
Trading Derivatives [Member] | Options Held, Maturity Current Year [Member] | Short (Sales) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 22,200 |
Trading Derivatives [Member] | Options Held, Maturity Year Two [Member] | Long (Purchases) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 55,000 |
Trading Derivatives [Member] | Options Held, Maturity Year Two [Member] | Short (Sales) [Member] | Crude Oil (in thousands of barrels) [Member] |  |  |
Volume of Outstanding Contracts |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  | 55,000 |

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