[Line Items] for Description of Business

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- Definition

Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Aggregate Ownership interest of Parent and Holding Company Subsidiaries

+ References

No definition available.

+ Details

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- Definition

Payments For Additional Interests In Consolidated Subsiaries

+ References

No definition available.

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- Definition

The fair value of investment held in the subsidiary investment funds by the limited liability company or limited partnership.

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No definition available.

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- Definition

Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

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- Definition

Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

+ References

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- Definition

Aggregate cash proceeds received from a combination of transactions in which noncurrent assets are sold, which may include the sale of a business, an investment in an affiliate (including an equity method investee), property, plant and equipment and intangible assets. Excludes sales of trading, available-for-sale, and held-to-maturity securities.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585

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- Definition

The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-Section S99
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611443-123010

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Description of Business (Details) - USD ($) $ in Millions			3 Months Ended
Description of Business (Details) - USD ($) $ in Millions	Jul. 31, 2019	Jan. 29, 2019	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Description of Business [Line Items]
Payments to acquire additional interest in subsidiaries			$ 0	$ 241
Proceeds from sale of investments			$ 0	424
Icahn Enterprises Holdings
Description of Business [Line Items]
Percentage of equity ownership in operating subsidiary			99.00%
CVR Refining
Description of Business [Line Items]
Percentage of equity ownership in operating subsidiary			34.40%
Viskase
Description of Business [Line Items]
Percentage of equity ownership in operating subsidiary			78.60%
Icahn Enterprises Holdings
Description of Business [Line Items]
Payments to acquire additional interest in subsidiaries			$ 0	$ 241
Investment Funds
Description of Business [Line Items]
Fair value of interest in subsidiary			$ 4,400		$ 4,300
Icahn Enterprises G.P.
Description of Business [Line Items]
Aggregate general partner ownership interest of parent and operating subsidiary			1.99%
Icahn Enterprises G.P. \| Icahn Enterprises Holdings
Description of Business [Line Items]
General partner ownership percentage in Icahn Enterprises			1.00%
Mr. Icahn and affiliates \| Icahn Enterprises Holdings
Description of Business [Line Items]
Affiliate ownership interest in Icahn Enterprises			92.00%
Energy Segment \| CVR Refining
Description of Business [Line Items]
Percentage of equity ownership in operating subsidiary		3.90%
Energy Segment \| CVR Energy
Description of Business [Line Items]
Percentage of equity ownership in operating subsidiary		80.60%	70.80%
Energy Segment \| CVR Refining
Description of Business [Line Items]
Payments to acquire additional interest in subsidiaries		$ 241
Mining Segment \| Ferrous Resources
Description of Business [Line Items]
Percentage of equity ownership in operating subsidiary	77.20%