The amount of redemption from investment funds.

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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 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			11 Months Ended	12 Months Ended
Related Party Transactions (Details) $ in Millions	May 05, 2022 item	Oct. 01, 2020 shares	Dec. 31, 2023 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Related Party Transaction
Number of portfolios \| item	2
Mr. Icahn and affiliates
Related Party Transaction
Noncontrolling Interest in Variable Interest Entity				$ 908	$ 1,500
Percentage of assets under management				25.00%	35.00%
Brett Icahn
Related Party Transaction
Portfolio manager term	7 years	7 years
Number of lump sum payment after term \| item	1
Investment in funds
Related Party Transaction
Investment funds					$ 650
Investment in funds \| Mr. Icahn and affiliates
Related Party Transaction
Redemption of investment funds				$ 508	250,000
Investment funds					256
Investment in funds \| Holding Company Segment
Related Party Transaction
Investment funds					394
Expense sharing arrangement \| Consolidated VIE
Related Party Transaction
Amount of transaction with related party				15	19	$ 18
Auto Plus Auction \| AEP PLC
Related Party Transaction
Assets acquired						10
Automotive
Related Party Transaction
Revenues from operating leases				35	60	$ 56
Automotive \| Deconsolidation of Investment in Auto Plus \| Auto Plus
Related Party Transaction
Purchases from related party			$ 4
Revenues from operating leases			$ 3
Incentive Plan 2017 \| Restricted depositary units
Related Party Transaction
Grants of restricted depository units \| shares		239,254
Vesting period		7 years
Brett Icahn
Related Party Transaction
Amount redeemed in accordance with manager agreement				18	4
Investment funds total fair value				$ 4	$ 17