Aggregate consideration for business to be disposed of

No definition available.

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- Definition

Common units validly tendered and not properly withdrawn

+ References

No definition available.

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- Definition

Contribution to subsidiary

+ References

No definition available.

+ Details

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- Definition

[Line Items] for Description of Business

+ References

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

Proceeds From Rights Offering

+ 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

Number of shares of equity interests issued or issuable to acquire entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

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- Definition

Represents a sale (new stock issuance) by a subsidiary to noncontrolling interests (third parties, parties directly or indirectly unrelated to parent) during the period. The capital transaction by subsidiary does not result in a loss of control by the parent, but does effect a change in total (consolidated) equity attributable to the parent.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

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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

+ 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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585

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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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(Details) - USD ($) $ in Millions				1 Months Ended		3 Months Ended		9 Months Ended
(Details) - USD ($) $ in Millions	Jul. 31, 2019	Jan. 29, 2019	Aug. 01, 2018	Aug. 31, 2018	Jan. 31, 2018	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Dec. 05, 2018
Description of Business [Line Items]
Payments to acquire additional interest in subsidiaries								$ 241	$ 0
Proceeds from sale of investments								491	158
Gain on disposition of assets, net						$ 249	$ 65	$ 256	65
Icahn Enterprises Holdings
Description of Business [Line Items]
Percentage of equity ownership in operating subsidiary								99.00%
Payments to acquire additional interest in subsidiaries								$ 241	0
Proceeds from sale of investments								491	158
Gain on disposition of assets, net						249	65	256	65
Investment Funds
Description of Business [Line Items]
Fair value of interest in subsidiary						4,300		$ 4,300		$ 5,100
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%
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
Description of Business [Line Items]
Affiliate ownership interest in Icahn Enterprises								92.00%
Energy Segment
Description of Business [Line Items]
Gain on disposition of assets, net						(3)	0	$ 5	(5)
Energy Segment \| CVR Refining
Description of Business [Line Items]
Percentage of equity ownership in operating subsidiary		3.90%
Payments to acquire additional interest in subsidiaries		$ 241
Common units validly tendered and not properly withdrawn			21,625,106
Energy Segment \| CVR Energy
Description of Business [Line Items]
Percentage of equity ownership in operating subsidiary		80.60%						70.80%
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares			13,699,549
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Issuance of Equity by Subsidiary to Noncontrolling Interests			$ 99
Railcar Segment
Description of Business [Line Items]
Gain on disposition of assets, net									5
Railcar Segment \| ARL
Description of Business [Line Items]
Proceeds from sale of investments									17
Gain on disposition of assets, net									5
Food Packaging Segment
Description of Business [Line Items]
Gain on disposition of assets, net						0	0	$ 0	$ 0
Food Packaging Segment \| Viskase
Description of Business [Line Items]
Percentage of equity ownership in operating subsidiary								78.60%	74.60%
Proceeds from subsidiary rights offering					$ 50
Contribution to subsidiary					$ 44
Real Estate Segment
Description of Business [Line Items]
Proceeds from sale of investments				$ 139
Gain on disposition of assets, net				$ 67		0	67	$ 0	$ 67
Mining Segment
Description of Business [Line Items]
Gain on disposition of assets, net						252	$ (2)	$ 252	$ (2)
Mining Segment \| Ferrous Resources
Description of Business [Line Items]
Percentage of equity ownership in operating subsidiary	77.20%
Aggregate consideration for business to be disposed of											$ 550
Proceeds from sale of investments						451
Gain on disposition of assets, net						$ 252