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Schedule I Condensed Financial Information of Parent - Footnote (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Affiliate ownership interest | 98.01% |  |
Debt | $ 7,326 | $ 7,372 |
Icahn Enterprises Holdings (Parent) |  |  |
Affiliate ownership interest | 99.00% |  |
Debt | $ 5,509 | 5,532 |
Aggregate cash dividends (received from) paid to Parent by consolidated subsidiaries | 238 | 509 | $ 421
Icahn Enterprises (Parent) |  |  |
Debt | 5,505 | 5,507 |
Aggregate cash dividends (received from) paid to Parent by consolidated subsidiaries | 433 | (204) | $ 390
6.000% senior unsecured notes due 2020 | Icahn Enterprises Holdings (Parent) |  |  |
Debt | 1,703 | 1,704 |
6.000% senior unsecured notes due 2020 | Icahn Enterprises (Parent) |  |  |
Debt | 1,702 | 1,703 |
5.875% senior unsecured notes due 2022 | Icahn Enterprises Holdings (Parent) |  |  |
Debt | 1,344 | 1,343 |
5.875% senior unsecured notes due 2022 | Icahn Enterprises (Parent) |  |  |
Debt | 1,344 | 1,342 |
6.250% senior unsecured notes due 2022 | Icahn Enterprises Holdings (Parent) |  |  |
Debt | 1,214 | 1,217 |
6.250% senior unsecured notes due 2022 | Icahn Enterprises (Parent) |  |  |
Debt | 1,213 | 1,216 |
6.750% senior unsecured notes due 2024 | Icahn Enterprises Holdings (Parent) |  |  |
Debt | 499 | 499 |
6.750% senior unsecured notes due 2024 | Icahn Enterprises (Parent) |  |  |
Debt | 498 | 498 |
6.375% senior unsecured notes due 2025 | Icahn Enterprises Holdings (Parent) |  |  |
Debt | 749 | 749 |
6.375% senior unsecured notes due 2025 | Icahn Enterprises (Parent) |  |  |
Debt | 748 | 748 |
Mortgages payable | Icahn Enterprises Holdings (Parent) |  |  |
Debt | $ 0 | $ 20 |
Icahn Enterprises G.P. |  |  |
General partner ownership percentage in Icahn Enterprises | 1.00% |  |
Aggregate general partner ownership interest of parent and operating subsidiary | 1.99% |  |
Icahn Enterprises G.P. | Icahn Enterprises Holdings (Parent) |  |  |
General partner ownership percentage in Icahn Enterprises | 1.00% |  |
Icahn Enterprises G.P. | Icahn Enterprises (Parent) |  |  |
General partner ownership percentage in Icahn Enterprises | 1.00% |  |
Aggregate general partner ownership interest of parent and operating subsidiary | 1.99% |  |

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