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Price Risk Management Activities (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended			1 Months Ended
	Sep. 30, 2014 Biofuels Blending [Member]	Sep. 30, 2013 Biofuels Blending [Member]	Sep. 30, 2014 Biofuels Blending [Member]	Sep. 30, 2013 Biofuels Blending [Member]	Sep. 30, 2014 Foreign Currency Contract [Member]	Oct. 31, 2014 Foreign Currency Contract [Member] Subsequent Event [Member]	Sep. 30, 2014 Fair Value Hedging [Member] MBbls	Sep. 30, 2014 Cash Flow Hedging [Member] MBbls	Sep. 30, 2014 Economic Hedging [Member] Swap [Member] Long (Purchases) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Economic Hedging [Member] Swap [Member] Long (Purchases) [Member] Maturity Year Two [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Economic Hedging [Member] Swap [Member] Long (Purchases) [Member] Maturity Year Three [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Economic Hedging [Member] Swap [Member] Short (Sales) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Economic Hedging [Member] Swap [Member] Short (Sales) [Member] Maturity Year Two [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Economic Hedging [Member] Swap [Member] Short (Sales) [Member] Maturity Year Three [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Economic Hedging [Member] Future [Member] Long (Purchases) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Economic Hedging [Member] Future [Member] Long (Purchases) [Member] Maturity Current Year [Member] Grain (in thousands of bushels) [Member] bu	Sep. 30, 2014 Economic Hedging [Member] Future [Member] Long (Purchases) [Member] Maturity Current Year [Member] Soybean Oil (in thousands of pounds) [Member] lb	Sep. 30, 2014 Economic Hedging [Member] Future [Member] Long (Purchases) [Member] Maturity Year Two [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Economic Hedging [Member] Future [Member] Long (Purchases) [Member] Maturity Year Two [Member] Grain (in thousands of bushels) [Member] bu	Sep. 30, 2014 Economic Hedging [Member] Future [Member] Long (Purchases) [Member] Maturity Year Two [Member] Soybean Oil (in thousands of pounds) [Member] lb	Sep. 30, 2014 Economic Hedging [Member] Future [Member] Long (Purchases) [Member] Maturity Year Three [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Economic Hedging [Member] Future [Member] Long (Purchases) [Member] Maturity Year Three [Member] Grain (in thousands of bushels) [Member] bu	Sep. 30, 2014 Economic Hedging [Member] Future [Member] Long (Purchases) [Member] Maturity Year Three [Member] Soybean Oil (in thousands of pounds) [Member] lb	Sep. 30, 2014 Economic Hedging [Member] Future [Member] Short (Sales) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Economic Hedging [Member] Future [Member] Short (Sales) [Member] Maturity Current Year [Member] Grain (in thousands of bushels) [Member] bu	Sep. 30, 2014 Economic Hedging [Member] Future [Member] Short (Sales) [Member] Maturity Current Year [Member] Soybean Oil (in thousands of pounds) [Member] lb	Sep. 30, 2014 Economic Hedging [Member] Future [Member] Short (Sales) [Member] Maturity Year Two [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Economic Hedging [Member] Future [Member] Short (Sales) [Member] Maturity Year Two [Member] Grain (in thousands of bushels) [Member] bu	Sep. 30, 2014 Economic Hedging [Member] Future [Member] Short (Sales) [Member] Maturity Year Two [Member] Soybean Oil (in thousands of pounds) [Member] lb	Sep. 30, 2014 Economic Hedging [Member] Future [Member] Short (Sales) [Member] Maturity Year Three [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Economic Hedging [Member] Future [Member] Short (Sales) [Member] Maturity Year Three [Member] Grain (in thousands of bushels) [Member] bu	Sep. 30, 2014 Economic Hedging [Member] Future [Member] Short (Sales) [Member] Maturity Year Three [Member] Soybean Oil (in thousands of pounds) [Member] lb	Sep. 30, 2014 Economic Hedging [Member] Forward Contracts [Member] Long (Purchases) [Member] Maturity Current Year [Member] Grain (in thousands of bushels) [Member] bu	Sep. 30, 2014 Economic Hedging [Member] Forward Contracts [Member] Long (Purchases) [Member] Maturity Year Two [Member] Grain (in thousands of bushels) [Member] bu	Sep. 30, 2014 Economic Hedging [Member] Forward Contracts [Member] Long (Purchases) [Member] Maturity Year Three [Member] Grain (in thousands of bushels) [Member] bu	Sep. 30, 2014 Commodity [Member] Swap [Member] Long (Purchases) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Commodity [Member] Swap [Member] Long (Purchases) [Member] Maturity Year Two [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Commodity [Member] Swap [Member] Short (Sales) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Commodity [Member] Swap [Member] Short (Sales) [Member] Maturity Year Two [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Commodity [Member] Future [Member] Long (Purchases) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Commodity [Member] Future [Member] Long (Purchases) [Member] Maturity Current Year [Member] Natural Gas (in billions of BTUs) [Member] MMBTU	Sep. 30, 2014 Commodity [Member] Future [Member] Long (Purchases) [Member] Maturity Year Two [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Commodity [Member] Future [Member] Long (Purchases) [Member] Maturity Year Two [Member] Natural Gas (in billions of BTUs) [Member] MMBTU	Sep. 30, 2014 Commodity [Member] Future [Member] Short (Sales) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Commodity [Member] Future [Member] Short (Sales) [Member] Maturity Current Year [Member] Natural Gas (in billions of BTUs) [Member] MMBTU	Sep. 30, 2014 Commodity [Member] Future [Member] Short (Sales) [Member] Maturity Year Two [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Commodity [Member] Future [Member] Short (Sales) [Member] Maturity Year Two [Member] Natural Gas (in billions of BTUs) [Member] MMBTU	Sep. 30, 2014 Commodity [Member] Options Held [Member] Long (Purchases) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Commodity [Member] Options Held [Member] Long (Purchases) [Member] Maturity Current Year [Member] Natural Gas (in billions of BTUs) [Member] MMBTU	Sep. 30, 2014 Commodity [Member] Options Held [Member] Long (Purchases) [Member] Maturity Year Two [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 30, 2014 Commodity [Member] Options Held [Member] Long (Purchases) [Member] Maturity Year Two [Member] Natural Gas (in billions of BTUs) [Member] MMBTU	Sep. 30, 2014 Commodity [Member] Options Held [Member] Short (Sales) [Member] Maturity Current Year [Member] Crude Oil (in thousands of barrels) [Member] MBbls	Sep. 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	0	4,074	2,819	0	4,000	1,630	0	62,038	13,725,000	108,240,000	372	30,000	0	0	0	0	72,904	23,970,000	241,080,000	1,130	7,260,000	15,000,000	0	115,000	0	13,893,000	5,429,000	113,000	3,490	240	3,490	240	142,619	4,100,000	38,576	1,950,000	142,872	4,400,000	38,307	0	4,400	500,000	250	0	3,400	350
Price Risk Management Activities (Textual)
Monetary notional amount of derivative liabilities					$ 798
Foreign currency commitments maturity date						Oct. 31, 2014
Compliance program costs	$ 82	$ 187	$ 265	$ 454

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- Definition

Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

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The expense charged against earnings for the periodic recognition of capitalized costs related to purchasing power, fuel, or emission credits. These items may be purchased in one accounting period but are deducted from earnings over time through amortization.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

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Nominal or face amount used to calculate payments on the derivative liability.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

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Date the foreign currency exchange rate derivatives mature or expire, in CCYY-MM-DD format.

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