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Debt Narrative - Senior Unsecured Notes - Icahn Enterprises (Details) - Range [Domain] - USD ($) $ in Millions |  | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Jan. 29, 2014 | Mar. 31, 2014 | Jun. 30, 2015 | Jun. 30, 2014 | Jan. 21, 2014 | Aug. 01, 2013 | Jan. 15, 2010
Debt Instrument [Line Items] |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  | $ 2 | $ 162 |  |  |
Senior unsecured notes [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Additional indebtedness allowed per debt covenants |  |  | $ 1,200 |  |  |  |
Senior unsecured notes [Member] | 2022 Notes [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Term Loan Facility | $ 1,350 |  |  |  |  |  |
Proceeds from Issuance of Debt | 1,340 |  |  |  |  |  |
Senior unsecured notes [Member] | 2020 Notes [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Term Loan Facility |  |  |  |  |  | $ 500 |
Interest rate, long-term debt |  |  |  |  |  |  | 6.00%
Proceeds from Issuance of Debt | $ 493 |  |  |  |  |  |
Senior unsecured notes [Member] | Additional 2020 Notes [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Term Loan Facility |  |  |  |  | $ 1,200 |  |
Interest rate, long-term debt | 5.875% |  |  |  |  |  |
Proceeds from Issuance of Debt | $ 1,217 |  |  |  |  |  |
Senior unsecured notes [Member] | 2019 Notes [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Term Loan Facility |  |  |  |  | 1,275 |  |
Interest rate, long-term debt |  |  |  |  |  |  | 4.875%
Proceeds from Issuance of Debt | 1,269 |  |  |  |  |  |
Senior unsecured notes [Member] | 2017 Notes [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Term Loan Facility |  |  |  |  | $ 1,175 |  |
Interest rate, long-term debt |  |  |  |  |  |  | 3.50%
Proceeds from Issuance of Debt | $ 1,169 |  |  |  |  |  |
Senior unsecured notes [Member] | 2010-2012 Notes [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Use of portion of debt proceeds |  | $ 3,500 |  |  |  |  |
Loss on extinguishment of debt |  | $ 108 |  |  |  |  |

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