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Organization and Nature of Business - Narrative (Details)				8 Months Ended	12 Months Ended
	Nov. 23, 2020 shares	Oct. 23, 2019 USD ($)	Jan. 29, 2019 USD ($) $ / shares	Dec. 31, 2020 USD ($)	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($)	Feb. 22, 2021 USD ($)	Nov. 22, 2020 shares	May 06, 2020 USD ($)
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Stock/Unit Repurchase Program, authorized amount		$ 300,000,000
Duration of Stock Repurchase Program		4 years
Common stock repurchased (in shares) | shares					0
Repurchase of CVR Partners' common units on open market and change in ownership while maintaining control						$ 336,000,000
Recognition of deferred tax liability from change in book versus tax basis in CVR Partners				$ 1,000,000	$ 1,000,000
Additional Paid-In Capital
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Repurchase of CVR Partners' common units on open market and change in ownership while maintaining control				3,000,000		2,000,000
Noncontrolling Interest
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Repurchase of CVR Partners' common units on open market and change in ownership while maintaining control				(4,000,000)		$ 334,000,000
CVR Partners
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Stock/Unit Repurchase Program, authorized amount									$ 10,000,000
Common stock repurchased (in shares) | shares					623,177
Percentage of interest held by public					64.00%
Reverse Unit Split, conversion ratio	0.1
Common unitholders, outstanding (in units) | shares	11,000,000							111,000,000
Cost, inclusive of transaction costs, of repurchase of outstanding common units					$ 7,000,000
Average price per common unit (in dollars per share) | $ / shares					$ 11.35
Amount remaining under Unit Repurchase Program				$ 3,000,000	$ 3,000,000
CVR Partners | Subsequent Event
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Stock/Unit Repurchase Program, authorized amount							$ 10,000,000
CVR Services | CVR Partners
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Percentage of common units owned by wholly-owned subsidiary					36.00%
CVR Services | CVR GP
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Percentage of common units owned by general partner					100.00%
Term Loan Facility | Credit Agreement
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Borrowing capacity			$ 105,000,000
CVR Refining
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Cash purchase price			$ 301,000,000
CVRR Public Unit Purchase
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Cash purchase price (in dollars per share) | $ / shares			$ 10.50
Cash purchase price			$ 241,000,000
CVRR Affiliate Unit Purchase | AEP and IEP
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Cash purchase price			$ 60,000,000
Majority Shareholder
Organization, Consolidation, and Presentation of Financial Statements [Line Items]
Ownership percentage held by controlling stockholder					71.00%	71.00%

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