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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 | 9 Months Ended
--- | --- | --- | ---
Oct. 31, 2017 | Sep. 30, 2017 USD ($) | Sep. 30, 2016 USD ($) | Sep. 30, 2017 USD ($) MMBTU lb MBbls bu | Sep. 30, 2016 USD ($)
Price Risk Management Activities (Textual) |  |  |  |  |
Compliance program costs | $ |  | $ 230 | $ 198 | $ 631 | $ 532
Foreign Currency Contracts [Member] |  |  |  |  |
Price Risk Management Activities (Textual) |  |  |  |  |
Monetary notional amount of derivative liabilities | $ |  | $ 514 |  | $ 514 |
Foreign Currency Contracts [Member] | Subsequent Event [Member] |  |  |  |  |
Price Risk Management Activities (Textual) |  |  |  |  |
Foreign currency commitments maturity date | Oct. 31, 2017 |  |  |  |
Economic Hedges [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 |  |  |  | 13,369 |
Economic Hedges [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 |  |  |  | 12,889 |
Economic Hedges [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 |  |  |  | 725 |
Economic Hedges [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 |  |  |  | 650 |
Economic Hedges [Member] | Swap, Maturity Year Three [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 Hedges [Member] | Swap, Maturity Year Three [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 Hedges [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 |  |  |  | 99,816 |
Economic Hedges [Member] | Future, Maturity Current Year [Member] | Long (Purchases) [Member] | Grain (in bushels) [Member] |  |  |  |  |
Volume of Outstanding Contracts |  |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  |  |  | 19,060 |
Economic Hedges [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 |  |  |  | 63,059 |
Economic Hedges [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 |  |  |  | 107,940 |
Economic Hedges [Member] | Future, Maturity Current Year [Member] | Short (Sales) [Member] | Grain (in bushels) [Member] |  |  |  |  |
Volume of Outstanding Contracts |  |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  |  |  | 24,985 |
Economic Hedges [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 |  |  |  | 157,018 |
Economic Hedges [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 |  |  |  | 7,014 |
Economic Hedges [Member] | Future, Maturity Year Two [Member] | Long (Purchases) [Member] | Grain (in bushels) [Member] |  |  |  |  |
Volume of Outstanding Contracts |  |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  |  |  | 20 |
Economic Hedges [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 Hedges [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 |  |  |  | 6,982 |
Economic Hedges [Member] | Future, Maturity Year Two [Member] | Short (Sales) [Member] | Grain (in bushels) [Member] |  |  |  |  |
Volume of Outstanding Contracts |  |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  |  |  | 18,070 |
Economic Hedges [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 Hedges [Member] | Future, Maturity Year Three [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 Hedges [Member] | Future, Maturity Year Three [Member] | Long (Purchases) [Member] | Grain (in bushels) [Member] |  |  |  |  |
Volume of Outstanding Contracts |  |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  |  |  | 35 |
Economic Hedges [Member] | Future, Maturity Year Three [Member] | Long (Purchases) [Member] | Soybean Oil (in pounds) [Member] |  |  |  |  |
Volume of Outstanding Contracts |  |  |  |  |
Nonmonetary notional amount of price risk derivatives, pounds | lb |  |  |  | 0 |
Economic Hedges [Member] | Future, Maturity Year Three [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 Hedges [Member] | Future, Maturity Year Three [Member] | Short (Sales) [Member] | Grain (in bushels) [Member] |  |  |  |  |
Volume of Outstanding Contracts |  |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  |  |  | 45 |
Economic Hedges [Member] | Future, Maturity Year Three [Member] | Short (Sales) [Member] | Soybean Oil (in pounds) [Member] |  |  |  |  |
Volume of Outstanding Contracts |  |  |  |  |
Nonmonetary notional amount of price risk derivatives, pounds | lb |  |  |  | 0 |
Economic Hedges [Member] | Forward Contracts, Maturity Current Year [Member] | Long (Purchases) [Member] | Grain (in bushels) [Member] |  |  |  |  |
Volume of Outstanding Contracts |  |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  |  |  | 13,065 |
Economic Hedges [Member] | Forward Contracts, Maturity Year Two [Member] | Long (Purchases) [Member] | Grain (in bushels) [Member] |  |  |  |  |
Volume of Outstanding Contracts |  |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  |  |  | 9,223 |
Economic Hedges [Member] | Forward Contracts, Maturity Year Three [Member] | Long (Purchases) [Member] | Grain (in bushels) [Member] |  |  |  |  |
Volume of Outstanding Contracts |  |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  |  |  | 11 |
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 |  |  |  | 1,922 |
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 |  |  |  | 1,922 |
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 |  |  |  | 134 |
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 |  |  |  | 134 |
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 |  |  |  | 56,273 |
Trading Derivatives [Member] | Future, Maturity Current Year [Member] | Long (Purchases) [Member] | Grain (in bushels) [Member] |  |  |  |  |
Volume of Outstanding Contracts |  |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  |  |  | 400 |
Trading Derivatives [Member] | Future, Maturity Current Year [Member] | Long (Purchases) [Member] | Natural Gas In Btus [Member] |  |  |  |  |
Volume of Outstanding Contracts |  |  |  |  |
Nonmonetary notional amount of price risk derivatives, millions of Btus | MMBTU |  |  |  | 600 |
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 |  |  |  | 55,234 |
Trading Derivatives [Member] | Future, Maturity Current Year [Member] | Short (Sales) [Member] | Natural Gas In Btus [Member] |  |  |  |  |
Volume of Outstanding Contracts |  |  |  |  |
Nonmonetary notional amount of price risk derivatives, millions of Btus | MMBTU |  |  |  | 300 |
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 |  |  |  | 25,948 |
Trading Derivatives [Member] | Future, Maturity Year Two [Member] | Long (Purchases) [Member] | Grain (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 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 |  |  |  | 26,933 |
Trading Derivatives [Member] | Future, Maturity Year Two [Member] | Short (Sales) [Member] | Natural Gas In Btus [Member] |  |  |  |  |
Volume of Outstanding Contracts |  |  |  |  |
Nonmonetary notional amount of price risk derivatives, millions of Btus | MMBTU |  |  |  | 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 |  |  |  | 39,380 |
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 |  |  |  | 38,980 |
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 |  |  |  | 142,450 |
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 |  |  |  | 142,450 |

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