The number of units or percentage investment of the limited partner interests held by the public.

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Represents the percentage of ownership interest held by the majority shareholder

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[Line Items] for Organization, Consolidation, and Presentation of Financial Statements [Table]

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Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration.

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Aggregate dividends declared during the period for each share of common stock outstanding.

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The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Amount of equity impact of cash distribution declared to unit-holder of limited partnership (LP).

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Per unit of ownership amount of cash distributions declared to unit-holder of a limited partnership (LP).

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

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Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

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Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Cash inflow received as distributions, returns of capital, or sale proceeds from partnership interests held for investment purposes.

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Organization and Basis of Presentation (Details) $ / shares in Units, $ in Millions					1 Months Ended	3 Months Ended		9 Months Ended
	Nov. 12, 2018 USD ($)	Oct. 24, 2018 USD ($) $ / shares	Sep. 30, 2018	Jul. 31, 2018	Aug. 31, 2018 USD ($) shares	Sep. 30, 2018 $ / shares	Sep. 30, 2017 $ / shares	Sep. 30, 2018 USD ($) segment $ / shares	Sep. 30, 2017 $ / shares
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Number of operating segments \| segment								2
Impact of CVRR units exchange, increase to additional paid-in capital, reduction of non-controlling interest, and recognition of deferred tax asset								$ (85.0)
Dividends declared (in dollars per share) \| $ / shares						$ 0.75	$ 0.50	$ 2.00	$ 1.50
Dividends declared								$ 162.0
CVR Refining, LP \| Second Underwritten Offering
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Percentage of limited partner interest held by the public								19.00%
CVR Energy, Inc. and CVR Refining Holdings LLC [Member] \| Second Underwritten Offering \| CVR Refining, LP
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Percentage of common units owned by wholly-owned subsidiary								81.00%
CVR Energy, Inc. and CVR Refining Holdings LLC [Member] \| Second Underwritten Offering \| CVR Refining GP, LLC
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Percentage of common units owned by limited partner								100.00%
CVR Partners, LP
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Percentage of limited partner interest held by the public								66.00%
Coffeyville Resources LLC (CRLLC) \| CVR Refining, LP
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Percentage of common units owned by wholly-owned subsidiary								34.00%
Coffeyville Resources LLC (CRLLC) \| CVR Refining GP, LLC
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Percentage of common units owned by limited partner								100.00%
IEP \| CVR Refining, LP \| Second Underwritten Offering
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Percentage of limited partner interest held by the public								3.90%
IEP \| IEP Energy LLC
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Ownership percentage held by controlling stockholder			71.00%	82.00%
Subsequent Event
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Dividends declared (in dollars per share) \| $ / shares		$ 0.75
Dividends declared		$ 75.0
Proceeds from distribution	$ 107.0
Subsequent Event \| CVR Refining, LP
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Distributions declared (in dollars per share) \| $ / shares		$ 0.90
Distributions declared		$ 133.0
Subsequent Event \| IEP \| IEP Energy LLC
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Dividends declared	$ 54.0
Noncontrolling Interest
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Impact of CVRR units exchange, increase to additional paid-in capital, reduction of non-controlling interest, and recognition of deferred tax asset								$ 191.0
Dividends declared								$ 0.0
Exchange Offer, CVR Refining Common Units for CVR Energy Common Stock
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Number of shares tendered in exchange offer (in shares) \| shares					13,699,549
Issuance costs incurred in connection with exchange offer					$ 0.7
Impact of CVRR units exchange, increase to additional paid-in capital, reduction of non-controlling interest, and recognition of deferred tax asset					$ 85.0
Exchange Offer, CVR Refining Common Units for CVR Energy Common Stock \| CVR Refining, LP
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Common stock exchanged in the exchange offer (in shares) \| shares					21,625,106
Exchange Offer, CVR Refining Common Units for CVR Energy Common Stock \| Additional Paid-in-Capital
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Impact of CVRR units exchange, increase to additional paid-in capital, reduction of non-controlling interest, and recognition of deferred tax asset					$ 276.0
Exchange Offer, CVR Refining Common Units for CVR Energy Common Stock \| Noncontrolling Interest
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Impact of CVRR units exchange, increase to additional paid-in capital, reduction of non-controlling interest, and recognition of deferred tax asset					$ 191.0