Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

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- Definition

Nominal mass used to calculate payments on a derivative instrument.

+ References

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- Definition

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

+ References

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Derivative Instruments, Open Positions (Details) gal in Thousands, bu in Thousands, bbl in Thousands, T in Thousands, CAD in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2015 T bbl bu	Dec. 31, 2014 CAD T bbl gal bu
Derivative
Derivative, Notional Amount \| CAD		CAD 32
Maturity date of foreign currency derivatives		Jan. 26, 2015
2015 \| Short \| Crude Oil Refined Products And Blending Products (in barrels) \| Futures
Derivative
Contract volumes	(13,710)
2015 \| Short \| Corn (in bushels) \| Futures
Derivative
Contract volumes \| bu	(3,515)
2015 \| Long \| Crude Oil Refined Products And Blending Products (in barrels) \| Futures
Derivative
Contract volumes	0
2015 \| Long \| Crude Oil Refined Products And Blending Products (in barrels) \| OTC Swaps
Derivative
Contract volumes	2,000
2015 \| Long \| Crude Oil Refined Products And Blending Products (in barrels) \| Forwards
Derivative
Contract volumes	131
2015 \| Long \| Carbon Credits (in tons) \| Futures
Derivative
Contract mass \| T	3,675
2015 \| Short \| Crude Oil Refined Products And Blending Products (in barrels) \| Futures
Derivative
Contract volumes	0	(8,207)
2015 \| Short \| Crude Oil Refined Products And Blending Products (in barrels) \| Forwards
Derivative
Contract volumes		(186)
2015 \| Short \| Renewable Identification Numbers (in gallons) \| Futures
Derivative
Contract volumes \| gal		(3,900)
2015 \| Short \| Corn (in bushels) \| Futures
Derivative
Contract volumes \| bu	0	(3,325)
2015 \| Long \| Crude Oil Refined Products And Blending Products (in barrels) \| Futures
Derivative
Contract volumes	485
2015 \| Long \| Crude Oil Refined Products And Blending Products (in barrels) \| OTC Swaps
Derivative
Contract volumes	0	2,750
2015 \| Long \| Crude Oil Refined Products And Blending Products (in barrels) \| Forwards
Derivative
Contract volumes	0
2015 \| Long \| Carbon Credits (in tons) \| Futures
Derivative
Contract mass \| T	1,000	11,775
2016 \| Short \| Crude Oil Refined Products And Blending Products (in barrels) \| Futures
Derivative
Contract volumes	0	0
2016 \| Short \| Crude Oil Refined Products And Blending Products (in barrels) \| Forwards
Derivative
Contract volumes		0
2016 \| Short \| Renewable Identification Numbers (in gallons) \| Futures
Derivative
Contract volumes \| gal		0
2016 \| Short \| Corn (in bushels) \| Futures
Derivative
Contract volumes \| bu	0	0
2016 \| Long \| Crude Oil Refined Products And Blending Products (in barrels) \| Futures
Derivative
Contract volumes	0
2016 \| Long \| Crude Oil Refined Products And Blending Products (in barrels) \| OTC Swaps
Derivative
Contract volumes	0	0
2016 \| Long \| Crude Oil Refined Products And Blending Products (in barrels) \| Forwards
Derivative
Contract volumes	0
2016 \| Long \| Carbon Credits (in tons) \| Futures
Derivative
Contract mass \| T	1,000	1,000
2017 \| Short \| Crude Oil Refined Products And Blending Products (in barrels) \| Futures
Derivative
Contract volumes		0
2017 \| Short \| Crude Oil Refined Products And Blending Products (in barrels) \| Forwards
Derivative
Contract volumes		0
2017 \| Short \| Renewable Identification Numbers (in gallons) \| Futures
Derivative
Contract volumes \| gal		0
2017 \| Short \| Corn (in bushels) \| Futures
Derivative
Contract volumes \| bu		0
2017 \| Long \| Crude Oil Refined Products And Blending Products (in barrels) \| OTC Swaps
Derivative
Contract volumes		0
2017 \| Long \| Carbon Credits (in tons) \| Futures
Derivative
Contract mass \| T		1,000