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Derivative Financial Instruments - Fair Value of Commodity Derivatives (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
CVR Refining, LP | Commodity Derivatives
Derivatives, Fair Value [Line Items]
Net unrealized gain (loss) on outstanding commodity derivative contracts	$ (26)	$ (64)

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- 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/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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- Details

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