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Derivative Financial Instruments - Open Commodity Derivative Instruments (Details) - CVR Refining, LP - bbl bbl in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
2-1-1 Crack spreads
Derivative [Line Items]
Number of barrels	0	7
Distillate Crack spreads
Derivative [Line Items]
Number of barrels	0	4
Gasoline Crack spreads
Derivative [Line Items]
Number of barrels	0	4
Canadian crude oil
Derivative [Line Items]
Number of barrels	4	6

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- Definition

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- Definition

Nominal volume used to calculate payments on a derivative instrument.

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