Schedule I (Parentheticals) (Details) - shares	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Condensed Financial Statements, Captions [Line Items]
Limited partners: Depositary units issued	214,078,558	191,366,097	173,564,307	144,741,149
Limited partners: Depositary units outstanding	214,078,558	191,366,097
Icahn Enterprises (Parent)
Condensed Financial Statements, Captions [Line Items]
Limited partners: Depositary units issued	214,078,558	191,366,097