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Segment Reporting - Condensed Balance Sheets (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024 | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | --- | --- | ---
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |  |
Cash and cash equivalents | $ 2,183 | $ 2,603 |  |
Cash held at consolidated affiliated partnerships and restricted cash | 2,692 | 2,636 |  |
Investments | 2,073 | 2,310 |  |
Accounts receivable, net | 503 | 479 |  |
Inventories, net | 1,000 | 897 |  |
Property, plant and equipment, net | 3,824 | 3,843 |  |
Goodwill and intangible assets, net | 683 | 697 |  |
Other assets | 2,523 | 2,814 |  |
Total Assets | 15,481 | 16,279 |  |
Accounts payable, accrued expenses and other liabilities | 4,049 | 3,476 |  |
Securities sold, not yet purchased, at fair value | 896 | 1,373 |  |
Debt | 6,794 | 6,809 |  |
Total liabilities | 11,739 | 11,658 |  |
Equity attributable to Icahn Enterprises | 1,774 | 2,466 |  |
Equity attributable to non-controlling interests | 1,968 | 2,155 |  |
Total equity | 3,742 | 4,621 | $ 5,625 | $ 6,073
Total Liabilities and Equity | 15,481 | 16,279 |  |
Investment Segment |  |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |  |
Cash and cash equivalents | 12 | 9 |  |
Cash held at consolidated affiliated partnerships and restricted cash | 2,508 | 2,449 |  |
Investments | 2,039 | 2,272 |  |
Other assets | 1,171 | 1,660 |  |
Total Assets | 5,730 | 6,390 |  |
Accounts payable, accrued expenses and other liabilities | 984 | 817 |  |
Securities sold, not yet purchased, at fair value | 896 | 1,373 |  |
Total liabilities | 1,880 | 2,190 |  |
Equity attributable to Icahn Enterprises | 2,479 | 2,703 |  |
Equity attributable to non-controlling interests | 1,371 | 1,497 |  |
Total equity | 3,850 | 4,200 |  |
Total Liabilities and Equity | 5,730 | 6,390 |  |
Energy |  |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |  |
Cash and cash equivalents | 695 | 987 |  |
Investments | 20 | 24 |  |
Accounts receivable, net | 320 | 295 |  |
Inventories, net | 585 | 502 |  |
Property, plant and equipment, net | 2,484 | 2,504 |  |
Goodwill and intangible assets, net | 154 | 159 |  |
Other assets | 464 | 280 |  |
Total Assets | 4,722 | 4,751 |  |
Accounts payable, accrued expenses and other liabilities | 1,610 | 1,509 |  |
Debt | 1,918 | 1,919 |  |
Total liabilities | 3,528 | 3,428 |  |
Equity attributable to Icahn Enterprises | 616 | 685 |  |
Equity attributable to non-controlling interests | 578 | 638 |  |
Total equity | 1,194 | 1,323 |  |
Total Liabilities and Equity | 4,722 | 4,751 |  |
Automotive Segment |  |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |  |
Cash and cash equivalents | 70 | 133 |  |
Cash held at consolidated affiliated partnerships and restricted cash | 3 | 8 |  |
Accounts receivable, net | 27 | 30 |  |
Inventories, net | 178 | 168 |  |
Property, plant and equipment, net | 815 | 808 |  |
Goodwill and intangible assets, net | 326 | 328 |  |
Other assets | 462 | 464 |  |
Total Assets | 1,881 | 1,939 |  |
Accounts payable, accrued expenses and other liabilities | 783 | 809 |  |
Debt | 28 | 31 |  |
Total liabilities | 811 | 840 |  |
Equity attributable to Icahn Enterprises | 1,070 | 1,099 |  |
Total equity | 1,070 | 1,099 |  |
Total Liabilities and Equity | 1,881 | 1,939 |  |
Food Packaging Segment |  |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |  |
Cash and cash equivalents | 6 | 6 |  |
Accounts receivable, net | 77 | 75 |  |
Inventories, net | 116 | 109 |  |
Property, plant and equipment, net | 118 | 124 |  |
Goodwill and intangible assets, net | 21 | 21 |  |
Other assets | 96 | 90 |  |
Total Assets | 434 | 425 |  |
Accounts payable, accrued expenses and other liabilities | 120 | 107 |  |
Debt | 136 | 144 |  |
Total liabilities | 256 | 251 |  |
Equity attributable to Icahn Enterprises | 164 | 159 |  |
Equity attributable to non-controlling interests | 14 | 15 |  |
Total equity | 178 | 174 |  |
Total Liabilities and Equity | 434 | 425 |  |
Real Estate Segment |  |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |  |
Cash and cash equivalents | 38 | 25 |  |
Cash held at consolidated affiliated partnerships and restricted cash | 2 | 2 |  |
Investments | 14 | 14 |  |
Accounts receivable, net | 14 | 14 |  |
Property, plant and equipment, net | 350 | 350 |  |
Other assets | 94 | 90 |  |
Total Assets | 512 | 495 |  |
Accounts payable, accrued expenses and other liabilities | 76 | 42 |  |
Debt | 1 | 1 |  |
Total liabilities | 77 | 43 |  |
Equity attributable to Icahn Enterprises | 430 | 447 |  |
Equity attributable to non-controlling interests | 5 | 5 |  |
Total equity | 435 | 452 |  |
Total Liabilities and Equity | 512 | 495 |  |
Home Fashion Segment |  |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |  |
Cash and cash equivalents | 3 | 4 |  |
Cash held at consolidated affiliated partnerships and restricted cash | 5 | 4 |  |
Accounts receivable, net | 26 | 28 |  |
Inventories, net | 96 | 93 |  |
Property, plant and equipment, net | 53 | 53 |  |
Goodwill and intangible assets, net | 19 | 19 |  |
Other assets | 18 | 19 |  |
Total Assets | 220 | 220 |  |
Accounts payable, accrued expenses and other liabilities | 42 | 43 |  |
Debt | 12 | 15 |  |
Total liabilities | 54 | 58 |  |
Equity attributable to Icahn Enterprises | 166 | 162 |  |
Total equity | 166 | 162 |  |
Total Liabilities and Equity | 220 | 220 |  |
Pharma |  |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |  |
Cash and cash equivalents | 41 | 42 |  |
Accounts receivable, net | 39 | 37 |  |
Inventories, net | 25 | 25 |  |
Goodwill and intangible assets, net | 163 | 170 |  |
Other assets | 6 | 7 |  |
Total Assets | 274 | 281 |  |
Accounts payable, accrued expenses and other liabilities | 59 | 72 |  |
Total liabilities | 59 | 72 |  |
Equity attributable to Icahn Enterprises | 215 | 209 |  |
Total equity | 215 | 209 |  |
Total Liabilities and Equity | 274 | 281 |  |
Holding Company |  |  |  |
Segment Reporting, Asset Reconciling Item [Line Items] |  |  |  |
Cash and cash equivalents | 1,318 | 1,397 |  |
Cash held at consolidated affiliated partnerships and restricted cash | 174 | 173 |  |
Property, plant and equipment, net | 4 | 4 |  |
Other assets | 212 | 204 |  |
Total Assets | 1,708 | 1,778 |  |
Accounts payable, accrued expenses and other liabilities | 375 | 77 |  |
Debt | 4,699 | 4,699 |  |
Total liabilities | 5,074 | 4,776 |  |
Equity attributable to Icahn Enterprises | (3,366) | (2,998) |  |
Total equity | (3,366) | (2,998) |  |
Total Liabilities and Equity | $ 1,708 | $ 1,778 |  |

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