[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.

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- Definition

Represents the number of approved therapies.

+ References

No definition available.

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- Definition

The number of partnership units acquired during the period.

+ 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

Number of product candidates in early stage development.

+ References

No definition available.

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- Definition

Represents the number of shares acquired.

+ References

No definition available.

+ Details

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- Definition

Amount of real estate owned that has been transferred to another segment.

+ 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.

+ Details

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- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

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- Definition

Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

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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
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482987/272-10-50-3

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- Definition

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

+ References

+ Details

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- Definition

The cash outflow associated with the purchase of noncontrolling interest during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-13

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- Definition

Cash outflow related to the acquisition or continued holding of limited partnership interests held for investment purposes.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-13

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- Definition

Amount of consideration received by subsidiary or equity investee in exchange for shares of stock issued or sold. Includes amount of cash received, fair value of noncash assets received, and fair value of liabilities assumed by the investor.

+ References

No definition available.

+ Details

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- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

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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	1 Months Ended	2 Months Ended	11 Months Ended	12 Months Ended
Description of Business (Details) $ in Millions	Aug. 31, 2025 USD ($)	Nov. 30, 2025 USD ($)	Jan. 31, 2026 USD ($) shares	Dec. 31, 2025 USD ($) item shares	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Description of Business [Line Items]
Aggregate general partner ownership interest of parent and operating subsidiary				1.99%
Owned real estate		$ 465
Pre-tax gain on disposition of assets				$ 247	$ (4)	$ 8
Energy
Description of Business [Line Items]
Pre-tax gain on disposition of assets				(7)		$ (2)
Real Estate Segment
Description of Business [Line Items]
Owned real estate		$ 465
Pre-tax gain on disposition of assets	$ 223			270
Real Estate Segment \| TEB LLC
Description of Business [Line Items]
Total consideration	$ 247
Pharma
Description of Business [Line Items]
Pre-tax gain on disposition of assets				$ 0
Icahn Enterprises Holdings
Description of Business [Line Items]
Percentage of equity ownership in operating subsidiary				99.00%
General partner ownership percentage in Icahn Enterprises				99.00%
Affiliate ownership interest				98.01%
Icahn Enterprises Holdings \| Icahn Enterprises G.P.
Description of Business [Line Items]
General partner ownership percentage in Icahn Enterprises				1.00%
Icahn Enterprises Holdings \| Mr. Icahn and affiliates
Description of Business [Line Items]
Affiliate ownership interest				86.00%
Icahn Enterprises G.P.
Description of Business [Line Items]
General partner ownership percentage in Icahn Enterprises				1.00%
Aggregate general partner ownership interest of parent and operating subsidiary				1.99%
Affiliate ownership interest				98.01%
CVR Refining
Description of Business [Line Items]
Percentage of equity ownership in operating subsidiary				37.00%
CVR Energy \| Energy
Description of Business [Line Items]
Percentage of equity ownership in operating subsidiary				70.00%
Viskase \| Private Placement
Description of Business [Line Items]
Percentage of equity ownership in operating subsidiary				93.00%
Additional common stock (in shares) \| shares			57,288,561
Additional common stock value			$ 45
CVR Partners \| Energy
Description of Business [Line Items]
Percentage of equity ownership in operating subsidiary				3.00%
Investment Funds
Description of Business [Line Items]
Fair value of investment in subsidiary				$ 2,700	$ 2,700
CVR Partners \| CVR Energy
Description of Business [Line Items]
Percentage of equity ownership in operating subsidiary				100.00%
CVR Partners
Description of Business [Line Items]
Number of partnership units acquired \| shares				98,082
Purchase price				$ 7
CVR Energy
Description of Business [Line Items]
Purchase of additional interests in consolidated subsidiaries				$ 65
Number of shares acquired \| shares				3,726,090
Vivus \| Pharma
Description of Business [Line Items]
Number of approved therapies \| item				2
Number of product candidates in active clinical development \| item				2
Number of product candidates \| item				2