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Organization and Basis of Presentation (Details) - segment
3 Months Ended 18 Months Ended
Mar. 31, 2018
Sep. 30, 2017
Organization, Consolidation, and Presentation of Financial Statements [Line Items]    
Number of reportable segments 2  
CVR Partners, LP    
Organization, Consolidation, and Presentation of Financial Statements [Line Items]    
Percentage of limited partner interest held by the public   66.00%
CVR GP, LLC    
Organization, Consolidation, and Presentation of Financial Statements [Line Items]    
Percentage of common units owned by limited partner 100.00%  
CVR Refining, LP | Second Underwritten Offering    
Organization, Consolidation, and Presentation of Financial Statements [Line Items]    
Percentage of limited partner interest held by the public 34.00%  
IEP Energy LLC    
Organization, Consolidation, and Presentation of Financial Statements [Line Items]    
Ownership percentage held by controlling stockholder 82.00%  
IEP Energy LLC | 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%  
CVR Refining Holdings LLC | CVR Refining, LP | Second Underwritten Offering    
Organization, Consolidation, and Presentation of Financial Statements [Line Items]    
Percentage of common units owned by CRLLC or CVR Refining Holdings 66.00%  
CVR Refining Holdings LLC | CVR Refining GP, LLC | Second Underwritten Offering    
Organization, Consolidation, and Presentation of Financial Statements [Line Items]    
Percentage of common units owned by limited partner 100.00%