XML 11 R1.htm IDEA: XBRL DOCUMENT v3.10.0.1
Document and Entity Information Document - shares
 6 Months Ended
Jun. 30, 2018
Aug. 02, 2018
Entity Information [Line Items]    
Entity Registrant Name ICAHN ENTERPRISES L.P.  
Trading Symbol IEP  
Entity Central Index Key 0000813762  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Jun. 30, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   182,190,734
Entity Well-known Seasoned Issuer Yes  
Entity Current Reporting Status Yes  
Icahn Enterprises Holdings    
Entity Information [Line Items]    
Entity Registrant Name ICAHN ENTERPRISES HOLDINGS L.P.  
Entity Central Index Key 0001034563  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Document Type 10-Q  
Document Period End Date Jun. 30, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   0
Entity Well-known Seasoned Issuer No  
Entity Current Reporting Status Yes