Cover page. Document Information [Table] Document Information [Table] Document Information [Line Items] Document Information [Line Items] Document Type Document Type Document Quarterly Report Document Period End Date Document Period End Date Document Transition Report Document Transition Report Entity File Number Entity File Number Entity Registrant Name Entity Registrant Name Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Entity Address, City or Town Entity Address, City or Town Entity Address, State or Province Entity Address, State or Province Entity Address, Postal Zip Code Entity Address, Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Title of 12(b) Security Title of 12(b) Security Trading Symbol Trading Symbol Security Exchange Name Security Exchange Name Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Shell Company Entity Shell Company Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) Statement [Table] Statement [Table] Statement [Line Items] Statement Assets [Abstract] Assets ASSETS Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Restricted Cash and Cash Equivalents Cash held at consolidated affiliated partnerships and restricted cash Restricted cash Investments. Investments Amount receivable from brokers as at the end of the reporting period. Due from Brokers Due from brokers Accounts Receivable, after Allowance for Credit Loss Accounts receivable, net Financing Receivable, after Allowance for Credit Loss Related party notes receivable, net Related party notes receivable, net Inventory, Net. Inventories, net Inventory, Net, Total Inventories, net Property, Plant and Equipment, Net Property, plant and equipment, net Deferred Income Tax Assets, Net Deferred tax asset Unrealized Gain On Derivative Contracts. Unrealized Gain On Derivative Contracts Derivative assets, net Goodwill Goodwill Intangible Assets, Net (Excluding Goodwill) Intangible assets, net Other Assets Other assets Assets Total assets Total Assets Liabilities and Equity [Abstract] LIABILITIES AND EQUITY AccountsPayableCurrentAndNoncurrent Accounts payable Accrued Liabilities Accrued expenses and other liabilities Deferred Income Tax Liabilities, Net Deferred tax liabilities Derivative Liability Derivative liabilities Derivative contracts, at fair value (liability) Derivative liabilities, net Financial Instruments Sold, Not yet Purchased, at Fair Value Securities sold, not yet purchased, at fair value Securities sold, not yet purchased Due to Correspondent Brokers Due to brokers Debt and Lease Obligation Debt Liabilities Total liabilities Total liabilities Commitments and Contingencies. Commitments and contingencies (Note 18) Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Equity: Limited Partners' Capital Account Limited partners: Depositary units: 504,003,429 units issued and outstanding at September 30, 2024 and 429,033,241 units issued and outstanding at December 31, 2023 General Partners' Capital Account General partner Partners' Capital Equity attributable to Icahn Enterprises Equity attributable to Icahn Enterprises Partners' Capital Attributable to Noncontrolling Interest Equity attributable to non-controlling interests Partners' Capital, Including Portion Attributable to Noncontrolling Interest Total equity Total equity Total equity Total equity Liabilities and Equity Total Liabilities and Equity Total Liabilities and Equity Stockholders' Equity Attributable to Parent [Abstract] Equity: Limited Partners' Capital Account, Units Issued Limited partners: Depositary units issued Limited Partners' Capital Account, Units Outstanding Limited partners: Depositary units outstanding CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) Revenues [Abstract] Revenues: Net Sales. Net Sales Net sales Other operating revenue. Other Operating Revenue Other revenues from operations Debt and Equity Securities, Gain (Loss), Excluding Other-than-temporary Impairment Loss Net gain (loss) from investment activities Net loss from investment activities Interest and Dividend Income, Operating Interest and dividend income Gain (Loss) on Disposition of Assets Loss (gain) on disposition of assets, net (Loss) gain on disposition of assets, net Other Income Other income, net Other income (loss), net Revenues Total revenues Total revenues Costs and Expenses [Abstract] Expenses: Cost Of Goods Sold (New). Cost Of Goods Sold (New) Cost of goods sold Cost of Other Revenue from Operations Cost of Other Revenue from Operations Other expenses from operations Dividend Expenses Dividend Expenses Dividend expense Selling, General and Administrative Expense Selling, general and administrative Restructuring Charges Restructuring, net The amount of impairment charges on related party note receivable, net. Impairment on Related Party Note Receivable, Net Credit loss on related party note receivable Deconsolidation, Gain (Loss), Amount Loss on deconsolidation of subsidiary Interest Expense Interest expense Costs and Expenses Total Expenses Total Expenses Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Pre-tax loss Income (loss) before income tax expense (Loss) income before income tax (expense) benefit Income Tax Expense (Benefit) Income tax benefit (expense) Income tax (expense) benefit Income tax expense Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income (loss) Net income (loss) Net loss Net Income (Loss) Attributable to Noncontrolling Interest Less: net income (loss) attributable to non-controlling interests Net income (loss) attributable to Icahn Enterprises Net Income (Loss) Attributable to Parent [Abstract] Net income (loss) attributable to Icahn Enterprises allocated to: Net Income (Loss) Allocated to Limited Partners Limited partners Net (loss) income attributable to Icahn Enterprises allocated to limited partners (98.01% allocation) Net Income (Loss) Allocated to General Partners General partner Net Income (Loss), Per Outstanding Limited Partnership Unit, Basic, Net of Tax [Abstract] Basic income (loss) per LP unit: Net Income (Loss), Per Outstanding Limited Partnership Unit, Basic, Net of Tax Basic income (loss) per LP unit (in dollars per share) Weighted Average Limited Partnership Units Outstanding, Basic Basic weighted average LP units outstanding (in shares) Earnings Per Share, Diluted [Abstract] Diluted income (loss) per LP unit: Net Income (Loss), Net of Tax, Per Outstanding Limited Partnership Unit, Diluted Diluted income (loss) per LP unit (in dollars per share) Weighted Average Limited Partnership Units Outstanding, Diluted Diluted weighted average LP units outstanding (in shares) Distributions Per Limited Partnership Unit Outstanding, Basic Distributions declared per LP unit (in dollars per share) CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (UNAUDITED) Other Comprehensive Income (Loss), Net of Tax [Abstract] Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Translation adjustments Other comprehensive income, net of tax, Translation Adjustment, Net of Tax, Total Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Post-retirement benefits and other Other comprehensive loss, net of tax, Post-Retirement Benefits and Other, Net of Tax Other Comprehensive Income (Loss), Net of Tax Other comprehensive loss Other comprehensive income (loss), net of tax Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive income (loss) attributable to Icahn Enterprises Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Less: Comprehensive income (loss) attributable to non-controlling interests Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income (loss) attributable to Icahn Enterprises Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Comprehensive income (loss) attributable to Icahn Enterprises allocated to: Comprehensive Income Attributable To Limited Partner Net Of Tax Comprehensive Income Attributable To Limited Partner Net Of Tax Limited partners Comprehensive Income Attributable To General Partner Net Of Tax Comprehensive Income Attributable To General Partner Net Of Tax General partner CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (UNAUDITED) Partner Type [Axis] Partner Type of Partners' Capital Account, Name [Domain] General partner General Partner's Deficit General partner Limited partners Limited Partners' Equity Partner Capital Components [Axis] Partner Capital Components [Domain] Capital Units Total Partners' Equity Non-controlling Interests Increase (Decrease) in Partners' Capital [Roll Forward] Increase (Decrease) in Equity Temporary equity reversal of distribution payable. Temporary Equity Reversal Of Distribution Payable Partnership distributions payable reversal Partners' Capital Account, Distributions Partnership distributions payable Partners' Capital Account, Contributions Partnership contributions Investment segment contributions. Investment Segment Contributions Investment segment contributions from non-controlling interests Investment Segment Distributions Investment Segment Distributions Investment segment distributions to non-controlling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Dividends and distributions to non-controlling interests in subsidiaries Stockholders' Equity, Other Changes in subsidiary equity and other CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) Net Cash Provided by (Used in) Operating Activities [Abstract] Cash flows from operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net loss to net cash provided by operating activities: Gain (Loss) on Investments Net loss from securities transactions Amount of cash outflow to acquire securities during the reporting period. Payment to Acquire Securities Purchases of securities Amount of cash flows from sale of securities during the reporting period. Proceeds from sales of securities Purchases to cover securities sold not yet purchased Purchases to Cover Securities Sold Not Yet Purchased Payments to cover securities sold, not yet purchased Investment Sold, Not yet Purchased, Sale Proceeds Proceeds from securities sold, not yet purchased Increase (Decrease) in Broker-Dealer Related Receivables (Payables), Net Changes in receivables and payables relating to securities transactions Increase (Decrease) in Derivative Assets and Liabilities Changes in derivative assets and liabilities Depreciation, Depletion and Amortization Depreciation and amortization Accounts Receivable, Credit Loss Expense (Reversal) Credit loss expense Increase (Decrease) in Deferred Income Taxes Deferred taxes Other Operating Activities, Cash Flow Statement Other, net Increase (Decrease) in Other Operating Assets and Liabilities, Net Changes in other operating assets and liabilities Net Cash Provided by (Used in) Operating Activities Net cash provided by operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows from investing activities: Payments to Acquire Property, Plant, and Equipment Capital expenditures Capital expenditures Amount of turnaround expenditures paid during the period. Payments For Turnaround Expenditures Turnaround expenditures Payments to Acquire Businesses, Net of Cash Acquired Acquisition of businesses, net of cash acquired Proceeds from Sales of Business, Affiliate and Productive Assets Proceeds from disposition of businesses and assets Proceeds from Sale of Equity Method Investments Return of equity method investment Proceeds from Sale, Maturity and Collection of Investments Proceeds from sales of investments Payments for (Proceeds from) Other Investing Activities Other, net Net Cash Provided by (Used in) Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Cash flows from financing activities: Proceeds from Contributions from Affiliates Investment segment contributions from non-controlling interests Amount of cash inflow (outflow) from investment segment distributions. Proceeds From Payments For Investment Segment Distributions Investment segment distributions to non-controlling interests Proceeds from Partnership Contribution Partnership contributions Payments of Dividends Partnership distributions Payments for additional interests in consolidated subsidiaries Payments For Additional Interests In Consolidated Subsidiaries Purchase of additional interests in consolidated subsidiaries Payments of Ordinary Dividends, Noncontrolling Interest Dividends and distributions to non-controlling interests in subsidiaries Proceeds from Issuance of Unsecured Debt Proceeds from Holding Company senior unsecured notes Repayments of Unsecured Debt Repayments of Holding Company senior unsecured notes The cash outflow to repurchase long term senior debt that is not secured by collateral Payments For Repurchase Of Senior Unsecured Debt Repurchase of Holding Company senior unsecured notes Total cash paid Proceeds from Other Debt Proceeds from subsidiary borrowings Repayments of Other Debt Repayments of subsidiary borrowings Proceeds from (Payments for) Other Financing Activities Other, net Net Cash Provided by (Used in) Financing Activities Net cash used in financing activities Effect of Exchange Rate on Cash and Cash Equivalents Effect of exchange rate changes on cash and cash equivalents and restricted cash and restricted cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Net (decrease) increase in cash and cash equivalents and restricted cash and restricted cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents and restricted cash and restricted cash equivalents, end of period Cash and cash equivalents and restricted cash and restricted cash equivalents, beginning of period Description of Business Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Description of Business Basis of Presentation and Summary of Significant Accounting Policies Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Basis of Presentation and Summary of Significant Accounting Policies No definition available. Subsidiary Bankruptcy and Deconsolidation The entire disclosure of subsidiary bankruptcy and deconsolidation. Subsidiary Bankruptcy And Deconsolidation. Subsidiary Bankruptcy and Deconsolidation Related Party Transactions Related Party Transactions Disclosure [Text Block] Related Party Transactions Investments Investments and Other Noncurrent Assets [Text Block] Investments Fair Value Measurements Fair Value Disclosures [Text Block] Fair Value Measurements Financial Instruments Financial Instruments Disclosure [Text Block] Financial Instruments No definition available. Related Party Notes Receivable, Net The entire disclosure of related party notes receivable, net. Related Party Notes Receivable, Net [Text Block] Related Party Notes Receivable, Net Inventories, Net Inventory Disclosure [Text Block] Inventories, Net Goodwill and Intangible Assets, Net Goodwill and Intangible Assets Disclosure [Text Block] Goodwill and Intangible Assets, Net