Description of Business [Line Items]

No definition available.

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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

Represents the number of approved therapies.

+ References

No definition available.

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- Definition

The number of product candidate in active clinical development.

+ References

No definition available.

+ Details

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- Definition

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

+ References

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

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599

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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=121586364&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

No definition available.

+ Details

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Description of Business (Details) $ in Millions	6 Months Ended
Description of Business (Details) $ in Millions	Jun. 30, 2021 USD ($) product item company	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)
Description Of Business [Line Items]
Number of operating companies \| company	2
Proceeds from disposition of businesses and assets	$ 34	$ 8
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	36.00%
Viskase \| Private Placement
Description Of Business [Line Items]
Percentage of equity ownership in operating subsidiary	89.00%
Icahn Enterprises Holdings
Description Of Business [Line Items]
Proceeds from disposition of businesses and assets	$ 34	$ 8
Investment Funds
Description Of Business [Line Items]
Fair value of interest in subsidiary	$ 4,700		$ 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	90.00%
Energy Segment \| CVR Energy
Description Of Business [Line Items]
Percentage of equity ownership in operating subsidiary	71.00%
Pharma Segment \| Vivus
Description Of Business [Line Items]
Number of approved therapies \| item	2
Number of product candidate in active clinical development \| product	1