XML 15 R1.htm IDEA: XBRL DOCUMENT v3.8.0.1
Document and Entity Information Document - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2017
Mar. 01, 2018
Jun. 30, 2017
Entity Information [Line Items]      
Entity Registrant Name ICAHN ENTERPRISES L.P.    
Entity Central Index Key 0000813762    
Current Fiscal Year End Date --12-31    
Entity Filer Category Large Accelerated Filer    
Document Type 10-K    
Document Period End Date Dec. 31, 2017    
Document Fiscal Year Focus 2017    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Common Stock, Shares Outstanding   173,576,769  
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Public Float (in millions)     $ 839
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-K    
Document Period End Date Dec. 31, 2017    
Document Fiscal Year Focus 2017    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Common Stock, Shares Outstanding   0  
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes