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Commitments and Contingencies Energy Narrative (Details) (Energy Segment [Member], USD $)
 3 Months Ended 12 Months Ended 3 Months Ended 1 Months Ended 9 Months Ended 12 Months Ended 1 Months Ended 9 Months Ended 3 Months Ended 1 Months Ended 0 Months Ended 3 Months Ended 3 Months Ended 0 Months Ended
Mar. 31, 2013
Mar. 31, 2013
CVR Energy, Inc. [Member]
Mar. 31, 2013
CRRM [Member]
Dec. 31, 2011
CRNF [Member]
Dec. 31, 2010
CRNF [Member]
Dec. 31, 2009
CRNF [Member]
Dec. 31, 2008
CRNF [Member]
Mar. 31, 2013
WRC [Member]
May 31, 2010
Crude Oil, Indirect Supplier [Member]
OKLAHOMA and KANSAS [Member]
CRRM [Member]
Pending Litigation [Member]
litigation_cases
Jun. 30, 2010
Crude Oil Discharge [Member]
Kansas
CVR Energy, Inc. [Member]
Pending Litigation [Member]
plaintiffs
Dec. 31, 2012
Crude Oil Discharge [Member]
Kansas
CVR Energy, Inc. [Member]
Pending Litigation [Member]
May 31, 2008
Crude Oil Discharge [Member]
Kansas
CVR Energy, Inc. [Member]
Settled [Member]
plaintiffs
Jun. 30, 2010
Crude Oil Discharge [Member]
Kansas
CVR Energy, Inc. [Member]
Pending Litigation and Settled, Aggregate [Member]
plaintiffs
Mar. 31, 2013
EPA, Second Consent Decree, Clean Air Act [Member]
CRRM [Member]
Aug. 31, 2011
ODEQ [Member]
WRC [Member]
Oct. 25, 2010
U.S. Coast Guard / EPA [Member]
Crude Oil Discharge [Member]
Kansas
CVR Energy, Inc. [Member]
Pending Litigation [Member]
Mar. 31, 2013
Air Emissions Reduction and Water Conservation [Member]
EPA, Second Consent Decree, Clean Air Act [Member]
CRRM [Member]
Mar. 31, 2013
Coffeyville, Kansas Refinery and Phillipsburg, Kansas Terminal Facility [Member]
Kansas
CRRM and CRT [Member]
Mar. 31, 2013
Professional Fees [Member]
CVR Energy, Inc. [Member]
Mar. 31, 2013
Profession fees, case 2 [Member]
CVR Energy, Inc. [Member]
Mar. 31, 2013
Wynnewood Consent Order [Member]
Feb. 13, 2013
Civil penalty [Member]
Feb. 13, 2013
Oversight cost reimbursement [Member]
Loss Contingencies [Line Items]                                              
Operating Leases, Rent Expense   $ 2,000,000                                          
Lawsuits Filed Against Company                 2                            
Average increase in annual property tax expense       11,000,000 12,000,000 11,000,000 11,000,000                                
Gain (Loss) Related to Litigation Settlement           11,000,000                                  
Number of claimants / plaintiffs                   1   16 3                    
Compensatory damages sought                       4,000,000 3,000,000     2,000,000     18,500,000 18,500,000      
Subsequent Event, Amount                                           600,000 1,700,000
Insurance proceeds under primary environmental liability insurance policy                     25,000,000                        
Accrued environmental liabilities                                   2,000,000          
Estimated closure and post-closure costs included in accred environmental liabilities                                   1,000,000          
Capital expenditures to comply with environmental rules 20,000,000   59,000,000         94,000,000           41,000,000     1,000,000            
U.S. refineries entered into environmental regulatory concent decree, minimum percentage of U.S. refining capacity     90.00%                                        
Civil penalty, anticipated maximum                           1,000,000                  
Capital expenditures to comply with environmental rules, expected to be capital expenditures                           39,000,000                  
Civil penalty paid                             950,000                
Environmental expenditures capitalized 22,000,000                                            
Loss Contingency, Estimate of Possible Loss                                         $ 2,000,000