Represents the information pertaining to investment funds total fair value.

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- Definition

investment in nonconsolidated VIE

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investment in related parties

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- Definition

Percentage fair value of investments in Funds that is attributable to Mr. Icahn

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The amount contributed by the related party under the manager agreement.

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Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vesting Period

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- Definition

Variable Interest Entities Equity Earnings

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- Definition

Portion of equity (net assets) in a variable interest entity (VIE) not attributable, directly or indirectly, to the parent entity. That is, this is the portion of equity in a VIE that is attributable to the noncontrolling interest (previously referred to as minority interest).

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Amount of income (expense) related to nonoperating activities, classified as other.

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- Definition

Amount of transactions with related party during the financial reporting period.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Related Party Transactions (Details) - USD ($) $ in Millions		12 Months Ended
	Oct. 01, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Related Party Transaction [Line Items]
Other income (loss), net		$ (84.0)	$ (31.0)	$ 19.0
Incentive Plan 2017 [Member] \| Restricted Depositary Units [Member]
Related Party Transaction [Line Items]
Grants of restricted depository units	239,254
Vesting period	7 years
Equity earnings from non-consolidated affiliates
Related Party Transaction [Line Items]
Other income (loss), net		8.0	2.0	21.0
Investment in funds \| Mr. Icahn and affiliates
Related Party Transaction [Line Items]
Amount of transaction with related party		$ 1,241.0	$ 220.0
Percentage fair value of investments in Funds that is attributable to Mr. Icahn		54.00%	54.00%
Noncontrolling Interest in Variable Interest Entity		$ 5.0	$ 5.0
Expense sharing arrangement \| Consolidated VIE
Related Party Transaction [Line Items]
Amount of transaction with related party		15.0	2.0	23.0
Repair services revenue from related party \| Hertz
Related Party Transaction [Line Items]
Amount of transaction with related party		20.0	54.0
Automotive Segment
Related Party Transaction [Line Items]
Other income (loss), net		(2.0)	(7.0)	15.0
Automotive Segment \| 767 Leasing
Related Party Transaction [Line Items]
Contribution to non-consolidated VIE		36.0	75.0	50.0
VIE equity earnings		2.0	(7.0)	11.0
Equity investment in non-consolidated VIE			40.0
Investment Segment
Related Party Transaction [Line Items]
Other income (loss), net		(75.0)	(17.0)	$ (5.0)
Brett Icahn
Related Party Transaction [Line Items]
Amount contributed in accordance with manager agreement		76.0	12.0
Investment funds total fair value		$ 93.0	$ 12.0