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Price Risk Management Activities (Details) lb in Thousands, bu in Thousands, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 USD ($) | Jun. 30, 2017 USD ($) | Jun. 30, 2018 USD ($) lb MBbls bu | Jun. 30, 2017 USD ($)
Price Risk Management Activities (Textual) |  |  |  |
Compliance program costs | $ | $ 27,860 | $ 19,609 | $ 51,616 | $ 39,037
Environmental Compliance Program Price Risk [Member] |  |  |  |
Price Risk Management Activities (Textual) |  |  |  |
Compliance program costs | $ | 131 | $ 255 | 337 | $ 401
Foreign Currency Contracts [Member] |  |  |  |
Price Risk Management Activities (Textual) |  |  |  |
Monetary notional amount of derivative liabilities | $ | $ 487 |  | $ 487 |
Foreign currency commitments maturity date |  |  | Jul. 31, 2018 |
Economic Hedges [Member] | Swap, 2018 Maturity [Member] | Long (Purchases) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 9,892 |
Economic Hedges [Member] | Swap, 2018 Maturity [Member] | Short (Sales) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 10,115 |
Economic Hedges [Member] | Swap, 2019 Maturity [Member] | Long (Purchases) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 135 |
Economic Hedges [Member] | Swap, 2019 Maturity [Member] | Short (Sales) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 0 |
Economic Hedges [Member] | Future, 2018 Maturity [Member] | Long (Purchases) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 93,569 |
Economic Hedges [Member] | Future, 2018 Maturity [Member] | Long (Purchases) [Member] | Corn (in thousands of bushels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  |  | 48,500 |
Economic Hedges [Member] | Future, 2018 Maturity [Member] | Long (Purchases) [Member] | Soybean Oil (in thousands of pounds) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, pounds | lb |  |  | 65,519 |
Economic Hedges [Member] | Future, 2018 Maturity [Member] | Short (Sales) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 95,354 |
Economic Hedges [Member] | Future, 2018 Maturity [Member] | Short (Sales) [Member] | Corn (in thousands of bushels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  |  | 86,310 |
Economic Hedges [Member] | Future, 2018 Maturity [Member] | Short (Sales) [Member] | Soybean Oil (in thousands of pounds) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, pounds | lb |  |  | 169,018 |
Economic Hedges [Member] | Future, 2019 Maturity [Member] | Long (Purchases) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 0 |
Economic Hedges [Member] | Future, 2019 Maturity [Member] | Long (Purchases) [Member] | Corn (in thousands of bushels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  |  | 150 |
Economic Hedges [Member] | Future, 2019 Maturity [Member] | Long (Purchases) [Member] | Soybean Oil (in thousands of pounds) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, pounds | lb |  |  | 0 |
Economic Hedges [Member] | Future, 2019 Maturity [Member] | Short (Sales) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 6 |
Economic Hedges [Member] | Future, 2019 Maturity [Member] | Short (Sales) [Member] | Corn (in thousands of bushels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  |  | 8,415 |
Economic Hedges [Member] | Future, 2019 Maturity [Member] | Short (Sales) [Member] | Soybean Oil (in thousands of pounds) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, pounds | lb |  |  | 0 |
Economic Hedges [Member] | Forward Contracts, 2018 Maturity [Member] | Long (Purchases) [Member] | Corn (in thousands of bushels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  |  | 41,029 |
Economic Hedges [Member] | Forward Contracts, 2019 Maturity [Member] | Long (Purchases) [Member] | Corn (in thousands of bushels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  |  | 8,264 |
Trading Derivatives [Member] | Swap, 2018 Maturity [Member] | Long (Purchases) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 300 |
Trading Derivatives [Member] | Swap, 2018 Maturity [Member] | Short (Sales) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 300 |
Trading Derivatives [Member] | Swap, 2019 Maturity [Member] | Long (Purchases) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 0 |
Trading Derivatives [Member] | Swap, 2019 Maturity [Member] | Short (Sales) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 0 |
Trading Derivatives [Member] | Future, 2018 Maturity [Member] | Long (Purchases) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 55,504 |
Trading Derivatives [Member] | Future, 2018 Maturity [Member] | Long (Purchases) [Member] | Corn (in thousands of bushels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  |  | 150 |
Trading Derivatives [Member] | Future, 2018 Maturity [Member] | Short (Sales) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 55,402 |
Trading Derivatives [Member] | Future, 2019 Maturity [Member] | Long (Purchases) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 7,701 |
Trading Derivatives [Member] | Future, 2019 Maturity [Member] | Long (Purchases) [Member] | Corn (in thousands of bushels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume | bu |  |  | 0 |
Trading Derivatives [Member] | Future, 2019 Maturity [Member] | Short (Sales) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 7,751 |
Trading Derivatives [Member] | Options Held, 2018 Maturity [Member] | Long (Purchases) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 75,800 |
Trading Derivatives [Member] | Options Held, 2018 Maturity [Member] | Short (Sales) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 75,400 |
Trading Derivatives [Member] | Options Held, 2019 Maturity [Member] | Long (Purchases) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 0 |
Trading Derivatives [Member] | Options Held, 2019 Maturity [Member] | Short (Sales) [Member] | Crude Oil and Refined Petroleum Products (in thousands of barrels) [Member] |  |  |  |
Volume of Outstanding Contracts |  |  |  |
Nonmonetary notional amount of price risk derivatives, volume |  |  | 0 |

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