Description of Business	12 Months Ended
Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	Description of Business. Overview Icahn Enterprises L.P. (“Icahn Enterprises”) is a master limited partnership formed in Delaware on February 17, 1987. Icahn Enterprises Holdings L.P. (“Icahn Enterprises Holdings”) is a limited partnership formed in Delaware on February 17, 1987. References to “we,” “our” or “us” herein include both Icahn Enterprises and Icahn Enterprises Holdings and their subsidiaries, unless the context otherwise requires. Icahn Enterprises owns a 99% limited partner interest in Icahn Enterprises Holdings. Icahn Enterprises G.P. Inc. (“Icahn Enterprises GP”), which is owned and controlled by Mr. Carl C. Icahn, owns a 1% general partner interest in each of Icahn Enterprises and Icahn Enterprises Holdings as of December 31, 2019. Icahn Enterprises Holdings and its subsidiaries own substantially all of our assets and liabilities and conduct substantially all of our operations. Therefore, the financial results of Icahn Enterprises and Icahn Enterprises Holdings are substantially the same, with differences relating primarily to the allocation of the general partner interest, which is reflected as an aggregate 1.99% general partner interest in the financial statements of Icahn Enterprises. In addition to the above, Mr. Icahn and his affiliates owned approximately 92.0% of Icahn Enterprises’ outstanding depositary units as of December 31, 2019. Description of Operating Businesses We are a diversified holding company owning subsidiaries currently engaged in the following continuing operating businesses: Investment, Energy, Automotive, Food Packaging, Metals, Real Estate and Home Fashion. We also report the results of our Holding Company, which includes the results of certain subsidiaries of Icahn Enterprises and Icahn Enterprises Holdings (unless otherwise noted), and investment activity and expenses associated with our Holding Company. Our historical results also report the results of our Mining segment, until sold on August 1, 2019, and our Railcar segment through the date we sold our last remaining railcars on lease, which occurred in the third quarter of 2018. See Note 13, “Segment and Geographic Reporting,” for a reconciliation of each of our reporting segment’s results of operations to our consolidated results. Certain additional information with respect to our segments are discussed below. Investment Our Investment segment is comprised of various private investment funds (“Investment Funds”) in which we have general partner interests and through which we invest our proprietary capital. We and certain of Mr. Icahn’s wholly-owned affiliates are the only investors in the Investment Funds. As general partner, we provide investment advisory and certain administrative and back office services to the Investment Funds but do not provide such services to any other entities, individuals or accounts. Interests in the Investment Funds are not offered to outside investors. We had interests in the Investment Funds with a fair market value of approximately $4.3 billion and $5.1 billion as of December 31, 2019 and 2018, respectively. Energy We conduct our Energy segment through our majority owned subsidiary, CVR Energy, Inc. (“CVR Energy”). CVR Energy is a diversified holding company primarily engaged in the petroleum refining and nitrogen fertilizer manufacturing businesses through its holdings in CVR Refining, LP (“CVR Refining”) and CVR Partners, LP (“CVR Partners”), respectively. CVR Refining is an independent petroleum refiner and marketer of high value transportation fuels. CVR Partners produces and markets nitrogen fertilizers in the form of urea ammonium nitrate and ammonia. CVR Energy has a general partner interest in each of CVR Refining and CVR Partners. In addition, CVR Energy is the sole limited partner of CVR Refining and owns 34.4% of the outstanding common units of CVR Partners as of December 31, 2019. As of December 31, 2019, we owned approximately 70.8% of the total outstanding common stock of CVR Energy. On January 29, 2019, CVR Energy, pursuant to the exercise of its right to purchase all of the issued and outstanding common units in CVR Refining, purchased the remaining common units of CVR Refining not already owned by CVR Energy, including the purchase of CVR Refining common units owned directly by us. Prior to this, CVR Energy owned approximately 80.6% of the common units of CVR Refining and we directly owned approximately 3.9% of the common units of CVR Refining. As a result of exercising its purchase right, as of January 29, 2019, CVR Energy owns all of the common units of CVR Refining and we no longer have any direct ownership in CVR Refining. In addition, the common units of CVR Refining have subsequently ceased to be publicly traded or listed on the New York Stock Exchange or any other national securities exchange. The remaining common units of CVR Refining acquired in this transaction were purchased for $241 million, excluding the amount paid by CVR Energy to us for the common units of CVR Refining directly owned by us. Prior to this, on August 1, 2018, CVR Energy completed an exchange offer whereby CVR Refining’s public unitholders tendered a total of 21,625,106 common units of CVR Refining in exchange for 13,699,549 shares of CVR Energy common stock. In connection with this transaction, our equity attributable to Icahn Enterprises and Icahn Enterprises Holdings increased by $99 million. Automotive We conduct our Automotive segment through our wholly-owned subsidiary, Icahn Automotive Group LLC (“Icahn Automotive”). Icahn Automotive is engaged in the retail and wholesale distribution of automotive parts in the aftermarket (“aftermarket parts”) as well as providing automotive repair and maintenance services (“automotive services”) to its customers. Icahn Automotive’s aftermarket parts and automotive services businesses serve different customer channels and have distinct strategies, opportunities and requirements. As a result, the board of directors of Icahn Automotive has approved the separation of its aftermarket parts and automotive services businesses into two independent operating companies, each with its own Chief Executive Officer and management teams, and both of which are supported by a central shared service group. Icahn Automotive is the parent company of various automotive businesses acquired in recent years, including the franchise businesses of Precision Tune Auto Care (“Precision Tune”) and American Driveline Systems, the franchisor of AAMCO and Cottman Transmission service centers (“American Driveline”). Precision Tune and American Driveline were acquired in 2017 for an aggregate purchase price of $162 million. Our Automotive segment also includes our separate equity method investment in 767 Auto Leasing LLC (“767 Leasing”), a joint venture created by us to purchase vehicles for lease, as described further in Note 3, “Related Party Transactions.” Although 767 Leasing is separate from Icahn Automotive, we include it as a component of our Automotive segment due to the nature of the joint venture activities. Food Packaging We conduct our Food Packaging segment through our majority owned subsidiary, Viskase Companies, Inc. (“Viskase”). Viskase is a producer of cellulosic, fibrous and plastic casings used to prepare and package processed meat products. During January 2018, Viskase received $50 million in connection with its common stock rights offering. In connection with this rights offering, we fully exercised our subscription rights under our basic and over subscription privileges to purchase additional shares of Viskase common stock, thereby increasing our ownership of Viskase from 74.6% to 78.6%, for an aggregate additional investment of $44 million. Metals We conduct our Metals segment through our indirect wholly-owned subsidiary, PSC Metals, LLC (“PSC Metals”). PSC Metals is principally engaged in the business of collecting, processing and selling ferrous and non-ferrous metals, as well as the processing and distribution of steel pipe and plate products. PSC Metals collects industrial and obsolete scrap metal, processes it into reusable forms and supplies the recycled metals to its customers. Real Estate Our Real Estate operations consist primarily of rental real estate, property development and associated club activities. Our rental real estate operations consist primarily of office and industrial properties leased to single corporate tenants. Our property development operations are run primarily through a real estate investment, management and development subsidiary that focuses primarily on the construction and sale of single-family and multi-family homes, lots in subdivisions and planned communities, and raw land for residential development. Our property development locations also operate golf and club operations. In addition, our Real Estate operations also includes a hotel, timeshare and casino resort property in Aruba as well as a casino property in Atlantic City, New Jersey, which ceased operations in 2014 prior to our obtaining control of the property. During 2018, our Real Estate segment sold two commercial rental properties for aggregate proceeds of $179 million, resulting in aggregate pretax gain on disposition of assets of $89 million. In August 2017, our Real Estate segment sold a development property in Las Vegas, Nevada for $600 million, resulting in a pretax gain on disposition of assets of $456 million. The transaction included cash proceeds from the sale of $225 million and two tranches of seller financing totaling $375 million (including a $345 million first-lien mortgage and a $30 million second-lien mortgage). The seller financing receivables were received in full during 2018. Home Fashion We conduct our Home Fashion segment through our wholly-owned subsidiary, WestPoint Home LLC (“WPH”). WPH’s business consists of manufacturing, sourcing, marketing, distributing and selling home fashion consumer products. Mining We conducted our Mining segment through our majority owned subsidiary, Ferrous Resources Ltd. (“Ferrous Resources”). Ferrous Resources acquired certain rights to iron ore mineral resources in Brazil and develops mining operations and related infrastructure to produce and sell iron ore products to the global steel industry. Prior to the sale of Ferrous Resources, as discussed below, we owned approximately 77.2% of its total outstanding common stock. On December 5, 2018, we announced a definitive agreement to sell Ferrous Resources for total consideration of $550 million (including repaid indebtedness). This transaction met all the criteria to be classified as held for sale on December 5, 2018 upon execution of the definitive agreement. On August 1, 2019, we closed on the sale of Ferrous Resources. Our proportionate share of the cash proceeds from the sale, net of adjustments, was $463 million. As a result of the sale of Ferrous Resources, our Mining segment recorded a pretax gain on disposition of assets of $252 million in 2019. Subsequent to the sale, we no longer operate an active Mining segment. Railcar We conducted our Railcar segment through our wholly-owned subsidiary, American Railcar Leasing, LLC (“ARL”). ARL operated a leasing business consisting of purchased railcars leased to third parties under operating leases. During 2017, we sold ARL and a majority of its railcar lease fleet for aggregate cash consideration of approximately $1.8 billion and reassigned the debt of ARL to the purchaser. During 2018, we sold all remaining railcars of ARL not previously sold for additional cash consideration of $17 million. In connection with these transactions, we recorded a pretax gain on disposition of assets of approximately $1.7 billion in 2017 and an additional pretax gain of $5 million in 2018. As a result of the sale of all remaining railcars during 2018, our business no longer includes an active Railcar segment. Description of Discontinued Operating Businesses We also report discontinued operations previously reported in our Automotive and Railcar segments and former Gaming segment. In addition below, see Note 14, “Discontinued Operations,” for additional information with respect to our discontinued operating businesses. Automotive Our discontinued Automotive operations consists of our previously wholly-owned subsidiary, Federal-Mogul LLC (“Federal-Mogul”). During January 2017, we increased our ownership in Federal-Mogul from 82.0% to 100% for an aggregate purchase price of $305 million. On October 1, 2018, we closed on the previously announced sale of Federal-Mogul to Tenneco Inc. (“Tenneco”). In connection with the sale, we received $800 million in cash and approximately 29.5 million shares of Tenneco common stock, of which approximately 23.8 million shares are non-voting shares that will convert to voting shares if and when sold. The remaining approximately 5.7 million voting shares received by us represents approximately 9.9% of the aggregate voting interest in Tenneco. There were restrictions on how many shares of Tenneco common stock that could be sold by us within the first 150 days after the closing of the sale. The voting and non-voting shares of Tenneco common stock have the same economic value. As of October 1, 2018, the approximately 29.5 million voting and non-voting shares of Tenneco common stock had a fair market value of approximately $1.2 billion, which our Holding Company will hold and record as a Level 1 investment measured at fair value on a recurring basis. In addition, Federal-Mogul’s outstanding debt was assumed by Tenneco. As a result of the sale of Federal-Mogul, we recorded a pretax gain on sale of discontinued operations attributable to Icahn Enterprises of $251 million in the fourth quarter of 2018. Gaming Our discontinued Gaming operations consists of our previous majority ownership in Tropicana Entertainment Inc. (“Tropicana”) and the Trump Taj Mahal Casino Resort (“Taj Mahal”). In August 2017, we increased our ownership in Tropicana from 72.5% to 83.9% through a tender offer for additional shares of Tropicana common stock not already owned by us for an aggregate purchase price of $95 million. In addition, Tropicana repurchased and retired shares of its common stock in connection with this tender offer for an aggregate purchase price of $36 million. Taj Mahal closed in October 2016 and was subsequently sold on March 31, 2017. On October 1, 2018, Tropicana closed on the previously announced real estate sales and merger transaction for aggregate cash consideration, net of adjustments, of approximately $1.8 billion. The transaction did not include Tropicana Aruba Resort and Casino, which was retained by us and is now reported within our Real Estate segment. Our proportionate share of the cash proceeds, net of adjustments, was approximately $1.5 billion. As a result of the sale of Tropicana, we recorded a pretax gain on sale of discontinued operations attributable to Icahn Enterprises of $779 million in the fourth quarter of 2018. Railcar Our discontinued Railcar operations consists of our previous majority ownership in American Railcar Industries, Inc. (“ARI”). On December 5, 2018, we closed on the previously announced sale of ARI for aggregate cash consideration of $831 million. As a result of the sale of ARI, we recorded a pretax gain on sale of discontinued operations attributable to Icahn Enterprises of $400 million in the fourth quarter of 2018.

Icahn Enterprises L.P. (“Icahn Enterprises”) is a master limited partnership formed in Delaware on February 17, 1987. Icahn Enterprises Holdings L.P. (“Icahn Enterprises Holdings”) is a limited partnership formed in Delaware on February 17, 1987. References to “we,” “our” or “us” herein include both Icahn Enterprises and Icahn Enterprises Holdings and their subsidiaries, unless the context otherwise requires.

Icahn Enterprises owns a 99% limited partner interest in Icahn Enterprises Holdings. Icahn Enterprises G.P. Inc. (“Icahn Enterprises GP”), which is owned and controlled by Mr. Carl C. Icahn, owns a 1% general partner interest in each of Icahn Enterprises and Icahn Enterprises Holdings as of December 31, 2019. Icahn Enterprises Holdings and its subsidiaries own substantially all of our assets and liabilities and conduct substantially all of our operations. Therefore, the financial results of Icahn Enterprises and Icahn Enterprises Holdings are substantially the same, with differences relating primarily to the allocation of the general partner interest, which is reflected as an aggregate 1.99% general partner interest in the financial statements of Icahn Enterprises. In addition to the above, Mr. Icahn and his affiliates owned approximately 92.0% of Icahn Enterprises’ outstanding depositary units as of December 31, 2019.

We are a diversified holding company owning subsidiaries currently engaged in the following continuing operating businesses: Investment, Energy, Automotive, Food Packaging, Metals, Real Estate and Home Fashion. We also report the results of our Holding Company, which includes the results of certain subsidiaries of Icahn Enterprises and Icahn Enterprises Holdings (unless otherwise noted), and investment activity and expenses associated with our Holding Company. Our historical results also report the results of our Mining segment, until sold on August 1, 2019, and our Railcar segment through the date we sold our last remaining railcars on lease, which occurred in the third quarter of 2018. See Note 13, “Segment and Geographic Reporting,” for a reconciliation of each of our reporting segment’s results of operations to our consolidated results. Certain additional information with respect to our segments are discussed below.

Our Investment segment is comprised of various private investment funds (“Investment Funds”) in which we have general partner interests and through which we invest our proprietary capital. We and certain of Mr. Icahn’s wholly-owned affiliates are the only investors in the Investment Funds. As general partner, we provide investment advisory and certain administrative and back office services to the Investment Funds but do not provide such services to any other entities, individuals or accounts. Interests in the Investment Funds are not offered to outside investors. We had interests in the Investment Funds with a fair market value of approximately $4.3 billion and $5.1 billion as of December 31, 2019 and 2018, respectively.

We conduct our Energy segment through our majority owned subsidiary, CVR Energy, Inc. (“CVR Energy”). CVR Energy is a diversified holding company primarily engaged in the petroleum refining and nitrogen fertilizer manufacturing businesses through its holdings in CVR Refining, LP (“CVR Refining”) and CVR Partners, LP (“CVR Partners”), respectively. CVR Refining is an independent petroleum refiner and marketer of high value transportation fuels. CVR Partners produces and markets nitrogen fertilizers in the form of urea ammonium nitrate and ammonia. CVR Energy has a general partner interest in each of CVR Refining and CVR Partners. In addition, CVR Energy is the sole limited partner of CVR Refining and owns 34.4% of the outstanding common units of CVR Partners as of December 31, 2019.

On January 29, 2019, CVR Energy, pursuant to the exercise of its right to purchase all of the issued and outstanding common units in CVR Refining, purchased the remaining common units of CVR Refining not already owned by CVR Energy, including the purchase of CVR Refining common units owned directly by us. Prior to this, CVR Energy owned approximately 80.6% of the common units of CVR Refining and we directly owned approximately 3.9% of the common units of CVR Refining. As a result of exercising its purchase right, as of January 29, 2019, CVR Energy owns all of the common units of CVR Refining and we no longer have any direct ownership in CVR Refining. In addition, the common units of CVR Refining have subsequently ceased to be publicly traded or listed on the New York Stock Exchange or any other national securities exchange. The remaining common units of CVR Refining acquired in this transaction were purchased for $241 million, excluding the amount paid by CVR Energy to us for the common units of CVR Refining directly owned by us.

Prior to this, on August 1, 2018, CVR Energy completed an exchange offer whereby CVR Refining’s public unitholders tendered a total of 21,625,106 common units of CVR Refining in exchange for 13,699,549 shares of CVR Energy common stock. In connection with this transaction, our equity attributable to Icahn Enterprises and Icahn Enterprises Holdings increased by $99 million.

We conduct our Automotive segment through our wholly-owned subsidiary, Icahn Automotive Group LLC (“Icahn Automotive”). Icahn Automotive is engaged in the retail and wholesale distribution of automotive parts in the aftermarket (“aftermarket parts”) as well as providing automotive repair and maintenance services (“automotive services”) to its customers. Icahn Automotive’s aftermarket parts and automotive services businesses serve different customer channels and have distinct strategies, opportunities and requirements. As a result, the board of directors of Icahn Automotive has approved the separation of its aftermarket parts and automotive services businesses into two independent operating companies, each with its own Chief Executive Officer and management teams, and both of which are supported by a central shared service group.

Icahn Automotive is the parent company of various automotive businesses acquired in recent years, including the franchise businesses of Precision Tune Auto Care (“Precision Tune”) and American Driveline Systems, the franchisor of AAMCO and Cottman Transmission service centers (“American Driveline”). Precision Tune and American Driveline were acquired in 2017 for an aggregate purchase price of $162 million. Our Automotive segment also includes our separate equity method investment in 767 Auto Leasing LLC (“767 Leasing”), a joint venture created by us to purchase vehicles for lease, as described further in Note 3, “Related Party Transactions.” Although 767 Leasing is separate from Icahn Automotive, we include it as a component of our Automotive segment due to the nature of the joint venture activities.

We conduct our Food Packaging segment through our majority owned subsidiary, Viskase Companies, Inc. (“Viskase”). Viskase is a producer of cellulosic, fibrous and plastic casings used to prepare and package processed meat products.

During January 2018, Viskase received $50 million in connection with its common stock rights offering. In connection with this rights offering, we fully exercised our subscription rights under our basic and over subscription privileges to purchase additional shares of Viskase common stock, thereby increasing our ownership of Viskase from 74.6% to 78.6%, for an aggregate additional investment of $44 million.

We conduct our Metals segment through our indirect wholly-owned subsidiary, PSC Metals, LLC (“PSC Metals”). PSC Metals is principally engaged in the business of collecting, processing and selling ferrous and non-ferrous metals, as well as the processing and distribution of steel pipe and plate products. PSC Metals collects industrial and obsolete scrap metal, processes it into reusable forms and supplies the recycled metals to its customers.

Our Real Estate operations consist primarily of rental real estate, property development and associated club activities. Our rental real estate operations consist primarily of office and industrial properties leased to single corporate tenants. Our property development operations are run primarily through a real estate investment, management and development subsidiary that focuses primarily on the construction and sale of single-family and multi-family homes, lots in subdivisions and planned communities, and raw land for residential development. Our property development locations also operate golf and club operations. In addition, our Real Estate operations also includes a hotel, timeshare and casino resort property in Aruba as well as a casino property in Atlantic City, New Jersey, which ceased operations in 2014 prior to our obtaining control of the property.

In August 2017, our Real Estate segment sold a development property in Las Vegas, Nevada for $600 million, resulting in a pretax gain on disposition of assets of $456 million. The transaction included cash proceeds from the sale of $225 million and two tranches of seller financing totaling $375 million (including a $345 million first-lien mortgage and a $30 million second-lien mortgage). The seller financing receivables were received in full during 2018.

We conduct our Home Fashion segment through our wholly-owned subsidiary, WestPoint Home LLC (“WPH”). WPH’s business consists of manufacturing, sourcing, marketing, distributing and selling home fashion consumer products.

We conducted our Mining segment through our majority owned subsidiary, Ferrous Resources Ltd. (“Ferrous Resources”). Ferrous Resources acquired certain rights to iron ore mineral resources in Brazil and develops mining operations and related infrastructure to produce and sell iron ore products to the global steel industry. Prior to the sale of Ferrous Resources, as discussed below, we owned approximately 77.2% of its total outstanding common stock.

On December 5, 2018, we announced a definitive agreement to sell Ferrous Resources for total consideration of $550 million (including repaid indebtedness). This transaction met all the criteria to be classified as held for sale on December 5, 2018 upon execution of the definitive agreement. On August 1, 2019, we closed on the sale of Ferrous Resources. Our proportionate share of the cash proceeds from the sale, net of adjustments, was $463 million. As a result of the sale of Ferrous Resources, our Mining segment recorded a pretax gain on disposition of assets of $252 million in 2019. Subsequent to the sale, we no longer operate an active Mining segment.

We conducted our Railcar segment through our wholly-owned subsidiary, American Railcar Leasing, LLC (“ARL”). ARL operated a leasing business consisting of purchased railcars leased to third parties under operating leases.

During 2017, we sold ARL and a majority of its railcar lease fleet for aggregate cash consideration of approximately $1.8 billion and reassigned the debt of ARL to the purchaser. During 2018, we sold all remaining railcars of ARL not previously sold for additional cash consideration of $17 million. In connection with these transactions, we recorded a pretax gain on disposition of assets of approximately $1.7 billion in 2017 and an additional pretax gain of $5 million in 2018.

We also report discontinued operations previously reported in our Automotive and Railcar segments and former Gaming segment. In addition below, see Note 14, “Discontinued Operations,” for additional information with respect to our discontinued operating businesses.

Our discontinued Automotive operations consists of our previously wholly-owned subsidiary, Federal-Mogul LLC (“Federal-Mogul”). During January 2017, we increased our ownership in Federal-Mogul from 82.0% to 100% for an aggregate purchase price of $305 million.

On October 1, 2018, we closed on the previously announced sale of Federal-Mogul to Tenneco Inc. (“Tenneco”). In connection with the sale, we received $800 million in cash and approximately 29.5 million shares of Tenneco common stock, of which approximately 23.8 million shares are non-voting shares that will convert to voting shares if and when sold. The remaining approximately 5.7 million voting shares received by us represents approximately 9.9% of the aggregate voting interest in Tenneco. There were restrictions on how many shares of Tenneco common stock that could be sold by us within the first 150 days after the closing of the sale. The voting and non-voting shares of Tenneco common stock have the same economic value. As of October 1, 2018, the approximately 29.5 million voting and non-voting shares of Tenneco common stock had a fair market value of approximately $1.2 billion, which our Holding Company will hold and record as a Level 1 investment measured at fair value on a recurring basis. In addition, Federal-Mogul’s outstanding debt was assumed by Tenneco.

Our discontinued Gaming operations consists of our previous majority ownership in Tropicana Entertainment Inc. (“Tropicana”) and the Trump Taj Mahal Casino Resort (“Taj Mahal”). In August 2017, we increased our ownership in Tropicana from 72.5% to 83.9% through a tender offer for additional shares of Tropicana common stock not already owned by us for an aggregate purchase price of $95 million. In addition, Tropicana repurchased and retired shares of its common stock in

On October 1, 2018, Tropicana closed on the previously announced real estate sales and merger transaction for aggregate cash consideration, net of adjustments, of approximately $1.8 billion. The transaction did not include Tropicana Aruba Resort and Casino, which was retained by us and is now reported within our Real Estate segment. Our proportionate share of the cash proceeds, net of adjustments, was approximately $1.5 billion.

Our discontinued Railcar operations consists of our previous majority ownership in American Railcar Industries, Inc. (“ARI”). On December 5, 2018, we closed on the previously announced sale of ARI for aggregate cash consideration of $831 million.