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Summary of Significant Accounting Policies Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Schedule of Significant Accounting Policies [Line Items]      
Cash held at consolidated affiliated partnerships and restricted cash $ 1,282 $ 1,439  
Debt 12,633 11,588  
Fair value of long-term debt 12,200 11,600  
Restricted cash [Member]      
Schedule of Significant Accounting Policies [Line Items]      
Cash held at consolidated affiliated partnerships and restricted cash 966 1,300  
Automotive Segment [Member]      
Schedule of Significant Accounting Policies [Line Items]      
Cash held at consolidated affiliated partnerships and restricted cash 0 0  
Debt 3,145 2,690  
Research and development expense 189 192 $ 177
Energy Segment [Member]      
Schedule of Significant Accounting Policies [Line Items]      
Inventory Adjustments   37  
Cash held at consolidated affiliated partnerships and restricted cash 0 0  
Debt $ 673 675  
Maximum [Member] | Refineries [Member] | Energy Segment [Member]      
Schedule of Significant Accounting Policies [Line Items]      
Planned major maintenance, frequency (in years) 5 years    
Maximum [Member] | Nitrogen Fertilizer [Member] | Energy Segment [Member]      
Schedule of Significant Accounting Policies [Line Items]      
Planned major maintenance, frequency (in years) 3 years    
Minimum [Member] | Refineries [Member] | Energy Segment [Member]      
Schedule of Significant Accounting Policies [Line Items]      
Planned major maintenance, frequency (in years) 4 years    
Minimum [Member] | Nitrogen Fertilizer [Member] | Energy Segment [Member]      
Schedule of Significant Accounting Policies [Line Items]      
Planned major maintenance, frequency (in years) 2 years    
Machinery, Equipment, and Furniture [Member] | Maximum [Member]      
Schedule of Significant Accounting Policies [Line Items]      
Property, plant and equipment, useful life (in years) 30 years    
Machinery, Equipment, and Furniture [Member] | Minimum [Member]      
Schedule of Significant Accounting Policies [Line Items]      
Property, plant and equipment, useful life (in years) 1 year    
Assets Leased to Others [Member] | Maximum [Member]      
Schedule of Significant Accounting Policies [Line Items]      
Property, plant and equipment, useful life (in years) 30 years    
Assets Leased to Others [Member] | Minimum [Member]      
Schedule of Significant Accounting Policies [Line Items]      
Property, plant and equipment, useful life (in years) 25 years    
Building and Improvements [Member] | Maximum [Member]      
Schedule of Significant Accounting Policies [Line Items]      
Property, plant and equipment, useful life (in years) 40 years    
Building and Improvements [Member] | Minimum [Member]      
Schedule of Significant Accounting Policies [Line Items]      
Property, plant and equipment, useful life (in years) 4 years    
Coffeyville refinery [Member] | Energy Segment [Member]      
Schedule of Significant Accounting Policies [Line Items]      
Planned major maintenance $ 102 6  
CVR Partners Fertilizer plant [Member] | Energy Segment [Member]      
Schedule of Significant Accounting Policies [Line Items]      
Planned major maintenance $ 7    
Wynnewood refinery [Member] | Energy Segment [Member]      
Schedule of Significant Accounting Policies [Line Items]      
Planned major maintenance   $ 1