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Acquisition Narrative (Details) (USD $)
In Millions, except Share data, unless otherwise specified
 0 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended 6 Months Ended 12 Months Ended 3 Months Ended 6 Months Ended 0 Months Ended 6 Months Ended 0 Months Ended 0 Months Ended 6 Months Ended 0 Months Ended 4 Months Ended
May 24, 2012
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Jun. 30, 2012
Principal Owners and Affiliates [Member]
Dec. 31, 2011
Principal Owners and Affiliates [Member]
Dec. 31, 2010
Principal Owners and Affiliates [Member]
Jun. 30, 2012
Energy Segment [Member]
Jun. 30, 2012
Energy Segment [Member]
May 04, 2012
CVR Energy, Inc. [Member]
cash_contingent_payments
Jun. 30, 2012
CVR Energy, Inc. [Member]
May 04, 2012
CVR Energy, Inc. [Member]
Maximum [Member]
May 04, 2012
CVR Energy, Inc. [Member]
Energy Segment [Member]
May 04, 2012
CVR Energy, Inc. [Member]
Energy Segment [Member]
Petroleum [Member]
May 04, 2012
CVR Energy, Inc. [Member]
Energy Segment [Member]
Nitrogen Fertilizer [Member]
May 04, 2012
CVR Partners, LP [Member]
Energy Segment [Member]
May 07, 2012
IEP Energy [Member]
Principal Owners and Affiliates [Member]
Jun. 30, 2012
IEP Energy [Member]
Principal Owners and Affiliates [Member]
Jun. 30, 2012
IEP Energy [Member]
CVR Energy, Inc. [Member]
May 04, 2012
IEP Energy [Member]
CVR Energy, Inc. [Member]
May 04, 2012
IEP Parties [Member]
CVR Energy, Inc. [Member]
May 03, 2012
CVR Energy, Inc. [Member]
Business Acquisition [Line Items]                                                    
Business Acquisition, Share Price                           $ 30                        
Number of cash contingent payment rights (in ones)                           1                        
Common shares of CVR tendered                           48,112,317                        
Percentage of CVR shares tendered                                               55.00%    
Percentage of equity ownership in subsidiary                                       70.00%     82.00%   70.00%  
Affiliate ownership interest                 93.00% 92.60% 92.60%                   6.40% 6.40%        
Business Combination, Acquisition Related Costs                             $ 1                      
Acquisition-date fair value of equity interest in CVR held by IEP Energy immediately before the acquisition date                           378                        
Gain on acquisition                           (1)                        
Solicitation period from third party to acquire 60 days                                                  
CCP valuation assumption, expected life of CCP                             3 months 18 days                      
Net gain from investment activities   278 590 336 1,207 1,905 814 1,406       0 [1] 0 [1]                         102
Business Acquisition, Purchase Price Allocation, Goodwill Amount                                 894 652 242              
Goodwill recognized, expected to be tax deductible                                 $ 0                  
EBITDA multiple used to calculate fair value of non-controlling interest in CVR                               6.5                    
[1] We consolidated CVR effective May 4, 2012.