Subsequent Events	9 Months Ended
Sep. 30, 2020
Subsequent Events [Abstract]
Subsequent Events	18. Subsequent Events Icahn Enterprises LP Unit Distribution On November 4, 2020, the Board of Directors of the general partner of Icahn Enterprises declared a quarterly distribution in the amount of $2.00 per depositary unit, which will be paid on or about December 29, 2020 to depositary unitholders of record at the close of business on November 24, 2020. Depositary unitholders will have until December 17, 2020 to make an election to receive either cash or additional depositary units; if a unitholder does not make an election, it will automatically be deemed to have elected to receive the distribution in cash. Depositary unitholders who elect to receive additional depositary units will receive units valued at the volume weighted average trading price of the units on NASDAQ during the 5 consecutive trading days ending December 24, 2020. No fractional depositary units will be issued pursuant to the distribution payment. Icahn Enterprises will make a cash payment in lieu of issuing fractional depositary units to any unitholders electing to receive depositary units. Any unitholders that would only be eligible to receive a fraction of a depositary unit based on the above calculation will receive a cash payment. Related Party Agreements On October 1, 2020, we entered into a manager agreement with Brett Icahn, the son of Carl C. Icahn, and affiliates of Brett Icahn. Under the manager agreement, Brett Icahn will serve as the portfolio manager of a designated portfolio of assets within the Investment Funds over a seven-year term, subject to veto rights by our Investment segment and Carl. C. Icahn. Additionally, Brett Icahn will provide certain other services, at our request, which may entail research, analysis and advice with respect to a separate designated portfolio of assets within the Investment Funds. Subject to the terms of the manager agreement, at the end of the seven-year term, Brett Icahn will be entitled to receive a one-time lump sum payment as described in and computed pursuant to the agreement. Brett Icahn will not be entitled to receive from us any other compensation (including any salary or bonus) in respect of the services he is to provide under the manager agreement other than restricted depositary units granted under a restricted unit agreement, as discussed below. On October 1, 2020, we entered into a restricted unit agreement with Brett Icahn pursuant to the 2017 Incentive Plan whereby Brett Icahn was awarded a grant of 239,254 restricted depositary units of Icahn Enterprises which will vest over seven years, subject to the terms and conditions of that agreement. We also entered into a guaranty agreement with an affiliate of Brett Icahn, pursuant to which we guaranteed the payment of certain amounts required to be distributed by the Investment Funds to such affiliate pursuant to the terms and conditions of the manager agreement.

Subsequent Events

9 Months Ended

Sep. 30, 2020

18. Subsequent Events

Icahn Enterprises

LP Unit Distribution

On November 4, 2020, the Board of Directors of the general partner of Icahn Enterprises declared a quarterly distribution in the amount of $2.00 per depositary unit, which will be paid on or about December 29, 2020 to depositary unitholders of record at the close of business on November 24, 2020. Depositary unitholders will have until December 17, 2020 to make an election to receive either cash or additional depositary units; if a unitholder does not make an election, it will automatically be deemed to have elected to receive the distribution in cash. Depositary unitholders who elect to receive additional depositary units will receive units valued at the volume weighted average trading price of the units on NASDAQ during the 5 consecutive trading days ending December 24, 2020. No fractional depositary units will be issued pursuant to the distribution payment. Icahn Enterprises will make a cash payment in lieu of issuing fractional depositary units to any unitholders electing to receive depositary units. Any unitholders that would only be eligible to receive a fraction of a depositary unit based on the above calculation will receive a cash payment.

Related Party Agreements

On October 1, 2020, we entered into a manager agreement with Brett Icahn, the son of Carl C. Icahn, and affiliates of Brett Icahn. Under the manager agreement, Brett Icahn will serve as the portfolio manager of a designated portfolio of assets within the Investment Funds over a seven-year term, subject to veto rights by our Investment segment and Carl. C. Icahn. Additionally, Brett Icahn will provide certain other services, at our request, which may entail research, analysis and advice with respect to a separate designated portfolio of assets within the Investment Funds. Subject to the terms of the manager agreement, at the end of the seven-year term, Brett Icahn will be entitled to receive a one-time lump sum payment as described in and computed pursuant to the agreement. Brett Icahn will not be entitled to receive from us any other compensation (including any salary or bonus) in respect of the services he is to provide under the manager agreement other than restricted depositary units granted under a restricted unit agreement, as discussed below.

On October 1, 2020, we entered into a restricted unit agreement with Brett Icahn pursuant to the 2017 Incentive Plan whereby Brett Icahn was awarded a grant of 239,254 restricted depositary units of Icahn Enterprises which will vest over seven years, subject to the terms and conditions of that agreement. We also entered into a guaranty agreement with an affiliate of Brett Icahn, pursuant to which we guaranteed the payment of certain amounts required to be distributed by the Investment Funds to such affiliate pursuant to the terms and conditions of the manager agreement.