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v3.25.1

Basis of Presentation and Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Accounting Policies [Line Items] |  |  |
Total Assets | $ 15,481 |  | $ 16,279
Debt | 6,794 |  | 6,809
Fair value of long-term debt | 6,500 |  | 6,600
Restricted cash | 2,692 |  | 2,636
Impairment | $ 10 |  |
Icahn Enterprises Holdings |  |  |
Accounting Policies [Line Items] |  |  |
Percentage of equity ownership in operating subsidiary | 99.00% |  |
Cash held at consolidated affiliated partnerships |  |  |
Accounting Policies [Line Items] |  |  |
Restricted cash | $ 897 |  | 915
Restricted cash |  |  |
Accounting Policies [Line Items] |  |  |
Restricted cash | 1,800 |  | 1,700
Primary beneficiary |  |  |
Accounting Policies [Line Items] |  |  |
Total Assets | 109 |  | 108
Energy |  |  |
Accounting Policies [Line Items] |  |  |
Total Assets | 4,722 |  | 4,751
Debt | 1,918 |  | 1,919
Remaining performance obligation expected to be recognized as revenue within one year | 7 |  |
Deferred revenue | 62 |  | 78
Recorded revenue | 23 | $ 5 |
Automotive Segment |  |  |
Accounting Policies [Line Items] |  |  |
Total Assets | 1,881 |  | 1,939
Debt | 28 |  | 31
Restricted cash | 3 |  | 8
Deferred revenue | 34 |  | 37
Recorded revenue | $ 6 |  | $ 6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01 |  |  |
Accounting Policies [Line Items] |  |  |
Remaining performance obligation for contracts with an original expected duration of more than one year | 1 year |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01 | Energy |  |  |
Accounting Policies [Line Items] |  |  |
Remaining performance obligation expected to be recognized as revenue within one year | $ 3 |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 |  |  |
Accounting Policies [Line Items] |  |  |
Remaining performance obligation for contracts with an original expected duration of more than one year | 1 year |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 | Energy |  |  |
Accounting Policies [Line Items] |  |  |
Remaining performance obligation for contracts with an original expected duration of more than one year | $ 3 |  |

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