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(Details) (USD $)
0 Months Ended 6 Months Ended 6 Months Ended
Jun. 30, 2014
Dec. 31, 2013
May 06, 2014
Principal Owners and Affiliates [Member]
Jun. 30, 2014
Principal Owners and Affiliates [Member]
Jun. 30, 2014
Icahn Enterprises G.P. [Member]
Jun. 30, 2014
Restricted cash [Member]
Dec. 31, 2013
Restricted cash [Member]
Jun. 30, 2014
Icahn Enterprises Holdings [Member]
Dec. 31, 2013
Icahn Enterprises Holdings [Member]
Entity Information [Line Items]                  
Percentage of equity ownership in operating subsidiary               99.00%  
General partner ownership percentage in Icahn Enterprises         1.00%        
General partner ownership interest in Icahn Enterprises Holdings         1.00%        
Aggregate general partner ownership interest of parent and operating subsidiary         1.99%        
Affiliate ownership interest in Icahn Enterprises (in units)       105,842,441          
Affiliate ownership interest in Icahn Enterprises     88.20% 88.20%          
Debt $ 11,343,000,000 $ 9,295,000,000           $ 11,343,000,000 $ 9,289,000,000
Fair value of long-term debt 11,600,000,000 9,400,000,000              
Cash held at consolidated affiliated partnerships and restricted cash $ 1,285,000,000 $ 396,000,000       $ 1,250,000,000 $ 330,000,000 $ 1,285,000,000 $ 396,000,000