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Derivative Financial Instruments - Additional Information (Details) bbl in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017 USD ($) derivative	Sep. 30, 2017 USD ($)	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2016 USD ($) derivative	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2017 USD ($) derivative bbl	Dec. 31, 2016 USD ($) derivative bbl	Dec. 31, 2015 USD ($) bbl
Derivative Financial Instruments
Loss on derivatives, net | $	$ (65.0)	$ (17.0)	$ 0.0	$ 12.2	$ (14.6)	$ (1.7)	$ (1.9)	$ (1.2)	$ (69.8)	$ (19.4)	$ (28.6)
Commodity derivatives | CVR Refining, LP
Derivative Financial Instruments
Number of derivative instruments held | derivative	0				0				0	0
Loss on derivatives, net | $									$ (0.5)	$ (0.5)	3.2
Not Designated as Hedging Instrument | 2-1-1 Crack Spreads | CVR Refining, LP
Derivative Financial Instruments
Number of barrels									7.1
Not Designated as Hedging Instrument | Distillate Crack Spreads | CVR Refining, LP
Derivative Financial Instruments
Number of barrels									3.6
Not Designated as Hedging Instrument | Gasoline Crack Spreads | CVR Refining, LP
Derivative Financial Instruments
Number of barrels									3.6
Not Designated as Hedging Instrument | Not Considered Probable of Settlement | CVR Refining, LP
Derivative Financial Instruments
Number of barrels									5.8
Not Designated as Hedging Instrument | Crack Spreads | CVR Refining, LP
Derivative Financial Instruments
Number of barrels										4.0
Not Designated as Hedging Instrument | Commodity swaps | CVR Refining, LP
Derivative Financial Instruments
Loss on derivatives, net | $									$ (69.3)	$ (18.9)	$ (36.4)
Number of barrels											1.4
Net unrealized gain (loss) | $	$ (64.3)				$ (11.1)				$ (64.3)	$ (11.1)

X

- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958

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- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
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- Definition

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+ References

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- Definition

Nominal volume used to calculate payments on a derivative instrument.

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- Definition

The number of derivative instruments of a particular group held by the entity.

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