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Amount of unit distribution declared or payable to unit-holder of limited partnership (LP).

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Earnings Per LP Unit [Line Items]

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Potential aggregate sales proceeds from equity offering.

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The authorized amount for repurchase of depositary units.

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The authorized amount for repurchase of fixed-rate senior unsecured notes.

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The remaining authorized amount of repurchase of fixed-rate senior unsecured notes under repurchase program.

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Per unit of ownership amount of cash distributions declared to unit-holder of a limited partnership (LP).

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Number of units distributed for payment of a unit distribution to unit-holder of limited partnership (LP).

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Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

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The number of limited partner units issued.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Aggregate amount of net income allocated to limited partners.

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Per unit of ownership amount after tax of income (loss) available to limited partnership (LP) unit-holder and units that would have been outstanding assuming the issuance of limited partner units for dilutive potential units outstanding.

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Net Income (Loss) Per LP Unit (Details) - USD ($) $ / shares in Units, $ in Millions			1 Months Ended	3 Months Ended
	May 04, 2026	Feb. 23, 2026	Apr. 30, 2026	Mar. 31, 2026	Mar. 31, 2025	Nov. 06, 2024	May 09, 2023
Net Income (Loss) Per LP Unit [Line Items]
Net income (loss) attributable to Icahn Enterprises				$ (459)	$ (422)
Net income (loss) attributable to Icahn Enterprises allocated to limited partners (98.01% allocation)				$ (450)	$ (414)
Basic loss per LP unit (in dollars per share)				$ (0.71)	$ (0.79)
Basic weighted average LP units outstanding (in shares)				637,000,000	523,000,000
Diluted loss per LP unit (in dollars per share)				$ (0.71)	$ (0.79)
Diluted weighted average LP units outstanding (in shares)				637,000,000	523,000,000
Distribution declared per LP unit		$ 0.5
Limited partners: Depositary units issued				637,209,452
Aggregate gross sale proceeds				$ 363
Fixed-rate senior unsecured notes, repurchase program authorized amount						$ 500	$ 500
Depositary units, repurchase program authorized amount				500			$ 500
Remaining authorized amount				$ 450
Distributions liability		$ 325
Subsequent event
Net Income (Loss) Per LP Unit [Line Items]
Distribution declared per LP unit	$ 0.5
Aggregate cash distributions to depositary unit holders			$ 51
Limited partners \| Subsequent event
Net Income (Loss) Per LP Unit [Line Items]
Units distributed to LP unitholders			34,841,101
Mr. Icahn and affiliates \| Subsequent event
Net Income (Loss) Per LP Unit [Line Items]
Units distributed to LP unitholders			32,536,774
Aggregate cash distributions to depositary unit holders			$ 25
Icahn Enterprises Holdings LP
Net Income (Loss) Per LP Unit [Line Items]
Affiliate ownership interest				98.01%	98.01%