The amount of redemption from investment funds.

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Estimated amount of proceeds from repayment of notes receivable.

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Represents the information pertaining to investment funds total fair value.

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Write-off of notes receivable of related parties.

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The amount redeemed 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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Percentage fair value of investments under management.

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Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer.

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Amount of operating dividend income on securities.

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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 operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.

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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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Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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The cash outflow for the payment of a long-term borrowing made from a related party where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Payments for Advances from Affiliates.

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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) $ in Millions				1 Months Ended	11 Months Ended	12 Months Ended
Related Party Transactions (Details) $ in Millions	Dec. 31, 2023 USD ($)	May 05, 2022 item	Oct. 01, 2020 shares	Dec. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Feb. 06, 2023 USD ($)	Jan. 31, 2023 USD ($)
Related Party Transaction
Number of portfolios \| item		2
Incentive Plan 2017 [Member] \| Restricted Depositary Units [Member]
Related Party Transaction
Grants of restricted depository units \| shares			239,254
Vesting period			7 years
Mr. Icahn and affiliates
Related Party Transaction
Percentage of assets under management	39.00%			39.00%	39.00%	39.00%	54.00%
Noncontrolling Interest in Variable Interest Entity	$ 2,100			$ 2,100	$ 2,100	$ 2,100	$ 4,900
Investment funds				$ 158
Brett Icahn
Related Party Transaction
Portfolio manager term		7 years	7 years
Number of lump sum payment after term \| item		1
Auto Plus
Related Party Transaction
Repayment of notes receivable						11
Write-off of notes receivable						127
ProceedsFromSaleAndCollectionOfNotesReceivable	$ 48
Investment in funds \| Mr. Icahn and affiliates
Related Party Transaction
Redemption of investment funds						2	0
Expense sharing arrangement \| Consolidated VIE
Related Party Transaction
Amount of transaction with related party						18	18	$ 15
Debtor in Possession Financing \| Auto Plus
Related Party Transaction
Aggregate amount										$ 75
Auto Plus Auction \| AEP PLC
Related Party Transaction
Assets acquired						10
Automotive Segment
Related Party Transaction
DIP loan amount									$ 17
Revenues from operating leases						56	45	10
Automotive Segment \| Deconsolidation of Investment in Auto Plus \| Auto Plus
Related Party Transaction
Revenues from operating leases					3
Purchases from related party					$ 4
Real Estate Segment
Related Party Transaction
Revenues from operating leases						17	7	$ 8
Brett Icahn
Related Party Transaction
Amount redeemed in accordance with manager agreement						17	14
Investment funds total fair value						$ 28	$ 50