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- Definition

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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- Definition

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

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The amount of net income (loss) from related party transactions.

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

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Variable Interest Entities Equity Earnings

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- Definition

Variable Interest Entity, Nonconsolidated, assets at VIE

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Variable Interest Entity, Nonconsolidated, liabilities at VIE

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

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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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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, 2020	Dec. 31, 2019	Dec. 31, 2018
Related Party Transaction [Line Items]
Other income (loss), net		$ (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		2.0	21.0	$ 7.0
Investment in funds \| Mr. Icahn and affiliates
Related Party Transaction [Line Items]
Amount of transaction with related party		$ 1,241.0	$ 220.0	310.0
Percentage fair value of investments in Funds that is attributable to Mr. Icahn		54.00%	51.00%
Noncontrolling Interest in Variable Interest Entity		$ 5.0	$ 4.5
Expense sharing arrangement \| Consolidated VIE
Related Party Transaction [Line Items]
Amount of transaction with related party		2.0	23.0	12.0
Repair services revenue from related party \| Hertz
Related Party Transaction [Line Items]
Amount of transaction with related party		20.0	54.0	40.0
Purchases from related party \| ACF
Related Party Transaction [Line Items]
Amount of transaction with related party				3.0
Sales to related party \| ACF
Related Party Transaction [Line Items]
Amount of transaction with related party				6.0
Buying group operating expenses \| Insight Portfolio Group LLC
Related Party Transaction [Line Items]
Amount of transaction with related party			3.0	4.0
Automotive Segment
Related Party Transaction [Line Items]
Other income (loss), net		(7.0)	15.0	(1.0)
Automotive Segment \| 767 Leasing
Related Party Transaction [Line Items]
Amount of transaction with related party		43.0	75.0	7.0
Net (loss) income from related party transaction		(12.0)	10.0	(3.0)
Variable Interest Entity, Nonconsolidated, assets at VIE		36.0	121.0
Variable Interest Entity, Nonconsolidated, liabilities at VIE		0.0	1.0
Contribution to non-consolidated VIE		75.0	50.0	60.0
VIE equity earnings		(7.0)	11.0	(1.0)
Equity investment in non-consolidated VIE		40.0	120.0
Investment Segment
Related Party Transaction [Line Items]
Other income (loss), net		(17.0)	$ (5.0)	(2.0)
Investment Segment \| Purchases from related party \| Hertz
Related Party Transaction [Line Items]
Amount of transaction with related party				$ 36.0
Brett Icahn
Related Party Transaction [Line Items]
Amount contributed in accordance with manager agreement		$ 12.0