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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 |  |

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