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Derivative Financial Instruments (Details 2) - CVR Refining, LP - USD ($)
$ in Millions
Jun. 30, 2015
Dec. 31, 2014
Current Assets    
Offsetting Assets [Line Items]    
Gross Assets $ 16.4 $ 25.3
Gross Amounts Offset (2.0) (0.3)
Net Assets Presented 14.4 25.0
Cash Collateral Not Offset 0.0 0.0
Net Amount 14.4 25.0
Noncurrent Assets    
Offsetting Assets [Line Items]    
Gross Assets 8.6 22.3
Gross Amounts Offset (0.1) 0.0
Net Assets Presented 8.5 22.3
Cash Collateral Not Offset 0.0 0.0
Net Amount 8.5 22.3
Commodity swaps | Current Assets    
Offsetting Assets [Line Items]    
Gross Assets 16.4 25.3
Gross Amounts Offset (2.0) (0.3)
Net Assets Presented 14.4 25.0
Cash Collateral Not Offset 0.0 0.0
Net Amount 14.4 25.0
Commodity swaps | Noncurrent Assets    
Offsetting Assets [Line Items]    
Gross Assets 8.6 22.3
Gross Amounts Offset (0.1) 0.0
Net Assets Presented 8.5 22.3
Cash Collateral Not Offset 0.0 0.0
Net Amount $ 8.5 $ 22.3