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Operating Units Energy Segment (Details) (USD $)
In Millions, unless otherwise specified
 0 Months Ended 12 Months Ended 12 Months Ended
May 04, 2012
CVR Partners, LP [Member]
Energy Segment [Member]
Dec. 31, 2012
CVR Energy, Inc. [Member]
Dec. 31, 2012
Crude Oil Gathering [Member]
Energy Segment [Member]
Dec. 31, 2012
Nitrogen Fertilizer [Member]
Energy Segment [Member]
Dec. 31, 2011
Nitrogen Fertilizer [Member]
Energy Segment [Member]
T
Dec. 31, 2012
CVR Partners, LP [Member]
Energy Segment [Member]
Dec. 31, 2012
Cushing, Oklahoma [Member]
Petroleum [Member]
Energy Segment [Member]
bbl
Dec. 31, 2012
Coffeyville, Kansas [Member]
Petroleum [Member]
Energy Segment [Member]
bbl
Dec. 31, 2012
Coffeyville, Kansas [Member]
486110 Pipeline Transportation of Crude Oil [Member]
Energy Segment [Member]
miles
Dec. 31, 2012
Wynnewood, Oklahoma [Member]
Energy Segment [Member]
Dec. 31, 2012
Wynnewood, Oklahoma [Member]
Petroleum [Member]
Energy Segment [Member]
bbl
Segment Reporting Information [Line Items]                      
Percentage of equity ownership in subsidiary 70.00% 82.00%                  
Production, Barrels of Oil Per Day     50,000         115,000 145,000   70,000
Crude Oil Pipeline, Length, Miles                 350    
Production, Barrels of Oil, Storage Capacity             1,000,000 1,200,000     500,000
Production, Barrels of Oil, Leased Storage Capacity             3,300,000        
Production, Tons of Ammonia Per Day       1,225              
Production, Tons of Urea and Ammonium Nitrate Per Day       2,025              
Production, Cubic Feet of Hydrogen Per Day       84,000,000              
Production, Tons of Ammonia         257,725            
Production, Ammonia Upgraded into UAN, Percentage         67.00%            
Production, Tons of UAN         421,524            
Expected future cost of planned maintenance           $ 5       $ 102  
Planned major maintenance frequency (in years)       2 years