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Price Risk Management Activities (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended |  | 1 Months Ended |
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Jun. 30, 2014 Biofuels Blending [Member] | Jun. 30, 2013 Biofuels Blending [Member] | Jun. 30, 2014 Biofuels Blending [Member] | Jun. 30, 2013 Biofuels Blending [Member] | Jun. 30, 2014 Foreign Currency Contract [Member] | Jul. 31, 2014 Foreign Currency Contract [Member] Subsequent Event [Member] | Jun. 30, 2014 Fair Value Hedging [Member] MBbls | Jun. 30, 2014 Cash Flow Hedging [Member] Future [Member] Long (Purchases) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Cash Flow Hedging [Member] Future [Member] Short (Sales) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Cash Flow Hedging [Member] Forward Contracts [Member] Short (Sales) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Economic Hedging [Member] Future [Member] Long (Purchases) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Economic Hedging [Member] Future [Member] Long (Purchases) [Member] Maturity Current Year [Member] Grain (in thousands of bushels) [Member] bu | Jun. 30, 2014 Economic Hedging [Member] Future [Member] Long (Purchases) [Member] Maturity Current Year [Member] Soybean Oil (in thousands of pounds) [Member] lb | Jun. 30, 2014 Economic Hedging [Member] Future [Member] Long (Purchases) [Member] Maturity Year Two [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Economic Hedging [Member] Future [Member] Long (Purchases) [Member] Maturity Year Two [Member] Grain (in thousands of bushels) [Member] bu | Jun. 30, 2014 Economic Hedging [Member] Future [Member] Long (Purchases) [Member] Maturity Year Two [Member] Soybean Oil (in thousands of pounds) [Member] lb | Jun. 30, 2014 Economic Hedging [Member] Future [Member] Short (Sales) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Economic Hedging [Member] Future [Member] Short (Sales) [Member] Maturity Current Year [Member] Grain (in thousands of bushels) [Member] bu | Jun. 30, 2014 Economic Hedging [Member] Future [Member] Short (Sales) [Member] Maturity Current Year [Member] Soybean Oil (in thousands of pounds) [Member] lb | Jun. 30, 2014 Economic Hedging [Member] Future [Member] Short (Sales) [Member] Maturity Year Two [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Economic Hedging [Member] Future [Member] Short (Sales) [Member] Maturity Year Two [Member] Grain (in thousands of bushels) [Member] bu | Jun. 30, 2014 Economic Hedging [Member] Future [Member] Short (Sales) [Member] Maturity Year Two [Member] Soybean Oil (in thousands of pounds) [Member] lb | Jun. 30, 2014 Economic Hedging [Member] Forward Contracts [Member] Long (Purchases) [Member] Maturity Current Year [Member] Grain (in thousands of bushels) [Member] bu | Jun. 30, 2014 Economic Hedging [Member] Forward Contracts [Member] Long (Purchases) [Member] Maturity Year Two [Member] Grain (in thousands of bushels) [Member] bu | Jun. 30, 2014 Economic Hedging [Member] Swap [Member] Long (Purchases) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Economic Hedging [Member] Swap [Member] Long (Purchases) [Member] Maturity Year Two [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Economic Hedging [Member] Swap [Member] Short (Sales) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Economic Hedging [Member] Swap [Member] Short (Sales) [Member] Maturity Year Two [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Commodity [Member] Future [Member] Long (Purchases) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Commodity [Member] Future [Member] Long (Purchases) [Member] Maturity Current Year [Member] Natural Gas (in billions of BTUs) [Member] MMBTU | Jun. 30, 2014 Commodity [Member] Future [Member] Long (Purchases) [Member] Maturity Year Two [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Commodity [Member] Future [Member] Long (Purchases) [Member] Maturity Year Two [Member] Natural Gas (in billions of BTUs) [Member] MMBTU | Jun. 30, 2014 Commodity [Member] Future [Member] Short (Sales) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Commodity [Member] Future [Member] Short (Sales) [Member] Maturity Current Year [Member] Natural Gas (in billions of BTUs) [Member] MMBTU | Jun. 30, 2014 Commodity [Member] Future [Member] Short (Sales) [Member] Maturity Year Two [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Commodity [Member] Future [Member] Short (Sales) [Member] Maturity Year Two [Member] Natural Gas (in billions of BTUs) [Member] MMBTU | Jun. 30, 2014 Commodity [Member] Swap [Member] Long (Purchases) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Commodity [Member] Swap [Member] Long (Purchases) [Member] Maturity Year Two [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Commodity [Member] Swap [Member] Short (Sales) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Commodity [Member] Swap [Member] Short (Sales) [Member] Maturity Year Two [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Commodity [Member] Options Held [Member] Long (Purchases) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Commodity [Member] Options Held [Member] Long (Purchases) [Member] Maturity Current Year [Member] Natural Gas (in billions of BTUs) [Member] MMBTU | Jun. 30, 2014 Commodity [Member] Options Held [Member] Long (Purchases) [Member] Maturity Year Two [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Commodity [Member] Options Held [Member] Long (Purchases) [Member] Maturity Year Two [Member] Natural Gas (in billions of BTUs) [Member] MMBTU | Jun. 30, 2014 Commodity [Member] Options Held [Member] Short (Sales) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls | Jun. 30, 2014 Commodity [Member] Options Held [Member] Short (Sales) [Member] Maturity Year Two [Member] Crude Oil (in thousands of barrels) [Member] MBbls
Volume of Outstanding Contracts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nonmonetary notional amount of price risk derivatives |  |  |  |  |  |  | 0 | 6,006 | 2,793 | 3,213 | 89,761 | 20,770,000 | 115,440,000 | 39 | 5,000 | 0 | 108,422 | 43,805,000 | 212,520,000 | 1 | 3,415,000 | 0 | 24,339,000 | 3,405,000 | 10,145 | 0 | 10,286 | 30 | 96,138 | 250,000 | 16,519 | 1,800,000 | 95,818 | 750,000 | 16,194 | 0 | 10,650 | 120 | 10,650 | 120 | 700 | 500,000 | 0 | 0 | 1,150 | 0
Price Risk Management Activities (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Monetary notional amount of derivative liabilities |  |  |  |  | $ 692 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency commitments maturity date |  |  |  |  |  | Jul. 31, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Compliance program costs | $ 91 | $ 137 | $ 183 | $ 267 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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