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Commitments and Contingencies Energy Narrative (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 3 Months Ended 12 Months Ended
Mar. 31, 2014
Energy Segment [Member]
Mar. 31, 2013
Energy Segment [Member]
Dec. 31, 2013
Energy Segment [Member]
Mar. 31, 2014
CRRM [Member]
Energy Segment [Member]
Mar. 31, 2013
CRRM [Member]
Energy Segment [Member]
Mar. 31, 2014
CVR Energy, Inc. [Member]
Energy Segment [Member]
Mar. 31, 2013
CVR Energy, Inc. [Member]
Energy Segment [Member]
Dec. 31, 2008
CRNF [Member]
Energy Segment [Member]
Mar. 31, 2014
PSC Metals [Member]
Metals Segment [Member]
Dec. 31, 2013
PSC Metals [Member]
Metals Segment [Member]
Mar. 31, 2014
Accrued expenses and other liabilities [Member]
Energy Segment [Member]
Dec. 31, 2013
Accrued expenses and other liabilities [Member]
Energy Segment [Member]
Loss Contingencies [Line Items]                        
Operating Leases, Rent Expense           $ 2 $ 2          
Average increase in annual property tax expense               11        
Accrued environmental liabilities 1   1           28 29    
Environmental Remediation Expense       34 22              
Cost of RINs 35 32                    
Biofuel blending obligation                     $ 40 $ 17