Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Icahn Enterprises Holdings [Member] Icahn Enterprises Holdings [Member] Icahn Enterprises Holdings [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Senior unsecured notes [Member] Senior Debt Obligations [Member] Debt facilities [Member] Debt Facility [Member] Debt Facility [Member] Secured credit facilities [Member] Secured Debt [Member] Mortgages payable [Member] Mortgages [Member] Other Debt Obligations [Member] Other Debt Obligations [Member] Segments [Axis] Segments [Axis] Segment [Domain] Segments [Domain] Automotive Segment [Member] Automotive Segment [Member] Automotive Segment [Member] Energy Segment [Member] Energy Segment [Member] Energy Segment [Member] Gaming Segment [Member] Gaming Segment [Member] Gaming Segment [Member] Railcar Segment [Member] Railcar Segment [Member] Railcar Segment [Member] Food Packaging Segment [Member] Food Packaging Segment [Member] Food Packaging Segment [Member] Real Estate Segment [Member] Real Estate Segment [Member] Real Estate Segment [Member] Home Fashion Segment [Member] Home Fashion Segment [Member] Home Fashion Segment [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 2022 Notes [Member] 2022 Notes [Member] 2022 Notes [Member] 2020 Notes [Member] 2020 Notes [Member] 2020 Notes [Member] 2019 Notes [Member] 2019 Notes [Member] 2019 Notes [Member] 8.00% senior unsecured notes due 2018 - Icahn Enterprises/Icahn Enterprises Holdings 2018 Notes [Member] Initial Issuance of 8% Senior Unsecured Notes Due 2018 [Member] 2017 Notes [Member] 2017 Notes [Member] 2017 Notes [Member] 7.75% senior unsecured notes due 2016 - Icahn Enterprises/Icahn Enterprises Holdings 2016 Notes [Member] Initial Issuance of the 7.75% Senior Unsecured Notes Due 2016 [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Debt Debt and Capital Lease Obligations Financial Instruments [Abstract] Financial Instruments [Abstract] Derivative [Table] Derivative [Table] Derivative Instrument Risk [Axis] Derivative Instrument [Axis] Primary underlying risk: Derivative Contract [Domain] Total Return Swap [Member] Total Return Swap [Member] Put Option [Member] Put Option [Member] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Koala [Member] Koala [Member] Koala [Member] Counterparty Name [Axis] Counterparty Name [Axis] Counterparty Name [Domain] Counterparty Name [Domain] Holding Company [Member] Holding Company [Member] Holding Company [Member] Investment Segment [Member] Investment Segment [Member] Investment Segment [Member] Investment Funds [Member] Investment Funds [Member] The Onshore Fund (Icahn Partners LP) and the Offshore Master Funds are collectively referred to as the “Investment Funds". The “Offshore Master Funds” consist of (i) Icahn Partners Master Fund LP, or Master Fund I, (ii) Icahn Partners Master Fund II LP, or Master Fund II and (iii) Icahn Partners Master Fund III LP, or Master Fund III. Derivative [Line Items] Derivative [Line Items] Non-cash Investment segment contribution (derivative liability shares transferred) Non-cash Investment segment contribution (derivative liability shares transferred) Non-cash Investment segment contribution (derivative liability shares transferred) Non-cash investment segment contribution Non-cash investment segment contribution Non-cash investment segment contribution Maximum payout amounts relating to put options written Open Option Contract Written, Potential Payment Amount The maximum payout of the open option contracts written for the investment. Realized and unrealized gain (loss) on derivatives, net Unrealized Gain (Loss) on Derivatives Fair value of derivative instruments with credit-risk related contingent features in a liability position Credit Risk Derivative Liabilities, at Fair Value Cash collateral posted for derivative positions Collateral Already Posted, Aggregate Fair Value Compensation and Retirement Disclosure [Abstract] Schedule of Net Periodic Benefit Costs Schedule of Net Benefit Costs [Table Text Block] Fair Value Disclosures [Abstract] Fair Value Measurements Fair Value Disclosures [Text Block] Schedule of Notional Amounts of Outstanding Derivative Positions Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance Derivative Instruments, Gain (Loss) [Table Text Block] Automotive Segment [Abstract] Automotive Segment [Abstract] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Affinia [Member] Affinia [Member] Affinia [Member] Honeywell [Member] Honeywell [Member] Honeywell [Member] Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Employee costs [Member] Employee Severance [Member] Facility costs [Member] Facility Closing [Member] Restructuring Plan [Axis] Restructuring Plan [Axis] Restructuring Plan [Domain] Restructuring Plan [Domain] Restructuring 2013 [Member] Restructuring 2013 [Member] [Member] Restructuring 2013 [Member] Federal-Mogul [Member] Federal-Mogul [Member] Federal-Mogul [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] business combinations, recognized identifiable assets, net intangible assets business combinations, recognized identifiable assets, net intangible assets business combinations, recognized identifiable assets, net intangible assets Percentage of equity ownership in subsidiary Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest Gross amount of transferred receivables under factoring arrangement Transferor's Interests in Transferred Financial Assets, Fair Value Gross amount of transferred receivables under factoring arrangements qualifying as sales Gross accounts receivable factored, qualifying as sales Gross accounts receivable under factoring facilities qualify as sales. Undrawn cash with respect to transferred receivables Undrawn cash with respect to transferred receivables Undrawn cash with respect to transferred receivables Proceeds from transferred receivables under factoring arrangements qualifying as sales Cash Flows Between Transferor and Transferee, Proceeds from New Transfers Expenses associated with transferred receivables under factoring arrangements Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale, Gain (Loss) on Sale Maximum exposure associated with transferred receivables under factoring arrangements Continuing Involvement with Transferred Financial Assets, Principal Amount Outstanding Restructuring Restructuring Charges Restructuring, total expected cost of plan Restructuring and Related Cost, Expected Cost Restructuring and Related Cost, Expected Cost Remaining Restructuring and Related Cost, Expected Cost Remaining Payments to Acquire Businesses, Gross Payments to Acquire Businesses, Gross business combination, cash paid in current period business combination, cash paid in current period business combination, cash paid in current period Business Combination, Consideration Transferred, Liabilities Incurred Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability business combinations, recognized identifiable assets, net tangible assets business combinations, recognized identifiable assets, net tangible assets business combinations, recognized identifiable assets, net tangible assets Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Debt Facility [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Term Loan [Member] Term Loan [Member] Term Loan [Member] Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Cash Flow Hedging [Member] Cash Flow Hedging [Member] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Other income (loss), net [Member] Other Income (Loss) Not Specified [Member] Other Income (Loss) not otherwise specified in the disclosure [Member] Derivative, by Nature [Axis] Derivative, by Nature [Axis] Derivative, Name [Domain] Derivative, Name [Domain] Swap [Member] Swap [Member] Foreign exchange contracts Foreign Exchange Contract [Member] Credit contracts Credit Risk Contract [Member] Commodity contracts Commodity Contract [Member] Interest rate swap contracts Interest Rate Swap [Member] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Not Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] Designated as Hedging Instrument [Member] Designated as Hedging Instrument [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Accrued expenses and other liabilities [Member] Accrued Expenses and Other Liabilities [Member] Accrued Expenses and Other Liabilities [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Asset Derivatives, Gross Derivative Asset, Fair Value, Gross Asset Liability Derivatives, Gross Derivative Liability, Fair Value, Gross Liability Derivative contract at fair value (liability) Derivative Liability, Fair Value, Amount Not Offset Against Collateral Realized loss on commodity derivatives Gain (Loss) on Sale of Commodity Contracts Barrels of crack spreads hedging margin on future gasoline and distillate production Derivative, Nonmonetary Notional Amount Balance of debt partially hedged Derivative, Amount of Hedged Item Notional value of interest rate swap agreements Derivative, Notional Amount Lower fixed interest rate paid on interest rate swaps Derivative, Fixed Interest Rate Frequency of interest rate swap settlements Interest Rate Cash Flow Hedge Derivative, Settlement Frequency Interest Rate Cash Flow Hedge Derivative, Settlement Frequency Average fixed interest rate paid on interest rate swaps Derivative, Average Fixed Interest Rate Effective interest rate on debt hedged Debt Instrument, Interest Rate, Effective Percentage Realized loss on interest rate swaps reclassified from AOCI into interest expense Derivative, Gain (Loss) on Derivative, Net Schedule of Long-term Debt Instruments Schedule of Long-term Debt Instruments [Table Text Block] Accounting Policies [Abstract] Reclassification, Policy [Policy Text Block] Reclassification, Policy [Policy Text Block] Consolidation, Variable Interest Entity, Policy [Policy Text Block] Consolidation, Variable Interest Entity, Policy [Policy Text Block] Fair Value of Financial Instruments, Policy [Policy Text Block] Fair Value of Financial Instruments, Policy [Policy Text Block] Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] New Accounting Pronouncements and Changes in Accounting Principles [Text Block] New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Description of New Accounting Pronouncements Not yet Adopted [Text Block] Description of New Accounting Pronouncements Not yet Adopted [Text Block] Segment Reporting [Abstract] Schedule of Condensed Financial Statements [Table] Condensed Financial Statements [Table] Holding Company [Member] Metals Segment [Member] Metals Segment [Member] Metals Segment [Member] Condensed Financial Statements, Captions [Line Items] Condensed Financial Statements, Captions [Line Items] ASSETS Assets [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Cash held at consolidated affiliated partnerships and restricted cash Restricted Cash and Cash Equivalents Investments Investments Accounts receivable, net Accounts Receivable, Net Inventories, net Inventory, Net Property, plant and equipment, net Property, Plant and Equipment, Net Goodwill and intangible assets, net Intangible Assets, Net (Including Goodwill) Other assets Other Assets and Due from Correspondent Brokers Other Assets and Due from Correspondent Brokers Total assets Assets LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Accounts payable, accrued expenses and other liabilities Accounts Payable and Accrued Liabilities Securities sold, not yet purchased, at fair value Financial Instruments Sold, Not yet Purchased, at Fair Value Due to brokers Due to Correspondent Brokers Post-employment benefit liability Postemployment Benefits Liability Total assets Liabilities Equity attributable to Icahn Enterprises Stockholders' Equity Attributable to Parent Equity attributable to non-controlling interests Stockholders' Equity Attributable to Noncontrolling Interest Total equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total liabilities and equity Liabilities and Equity Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 3 [Member] Fair Value, Inputs, Level 3 [Member] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Balance at January 1 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Distribution-in-kind Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, distribution in kind Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, distribution in kind Gross realized and unrealized losses Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Gross proceeds Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Balance at June 30 Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Total fair value [Member] Estimate of Fair Value Measurement [Member] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Recurring measurement [Member] Fair Value, Measurements, Recurring [Member] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Equity securities: Equity Securities [Member] Corporate debt: Corporate Debt Securities [Member] Mortgage-backed securities: Collateralized Mortgage Backed Securities [Member] Investment Sector [Axis] Investment Sector [Axis] Investment Sector [Domain] Investment Sector [Domain] Communications Communications [Member] Communications [Member] Consumer, non-cyclical Consumer, non-cyclical [Member] Consumer, non-cyclical [Member] Consumer, cyclical Consumer, cyclical [Member] Consumer, cyclical [Member] Diversified Diversified [Member] Diversified [Member] Energy Energy sector [Member] Energy sector [Member] Financial Financial [Member] Financial [Member] Funds Funds [Member] Funds [Member] Technology Technology [Member] Technology [Member] Sovereign debt Sovereign Debt [Member] Utilities Utilities [Member] Utilities [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Assets [Abstract] Investments [Abstract] Investments [Abstract] Trading securities Trading Securities Derivative contracts, at fair value (asset) Derivative Asset Fair value of investment and derivative assets Assets, Fair Value Disclosure Liabilities [Abstract] Liabilities [Abstract] Securities sold, not yet purchased, at fair value: Financial Instruments Sold, Not yet Purchased, at Fair Value [Abstract] Derivative contracts at fair value (liability) Derivative Liability Fair value of derivative and other liabilities Financial and Nonfinancial Liabilities, Fair Value Disclosure Use of proceed type [Axis] Use of proceed type [Axis] Use of proceed type [Axis] Use of proceed type [Domain] Use of proceed type [Domain] [Domain] for Use of proceed type [Axis] CRLLC [Member] CRLLC [Member] CRLLC [Member] CRNF [Member] CRNF [Member] CRNF [Member] Variable Rate Option [Axis] Variable Rate Option [Axis] Variable Rate Option [Axis] Variable Rate Option [Domain] Variable Rate Option [Domain] Variable Rate Option [Domain] Base Rate [Member] Base Rate [Member] EuroDollar [Member] Eurodollar [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Debt Repurchase Description [Axis] Debt Repurchase Description [Axis] Debt Repurchase Description [Axis] Debt Repurchase Description [Domain] Debt Repurchase Description [Domain] Debt Repurchase Description [Domain] Debt repurchase percentage of principal amount authorized if change of control [Member] Debt Instrument, Repurchase Percentage of Principal Amount Authorized if Change of Control [Member] Debt Instrument, Repurchase Percentage of Principal Amount Authorized if Change of Control [Member] CVR Second Lien Notes [Member] CVR Second Lien Notes [Member] 10.875% Second Lien Senior Secured Notes due 2017 [Member] ABL Credit Facility [Member] ABL Credit Facility [Member] ABL Credit Facility [Member] Letter of Credit [Member] Letter of Credit [Member] Revolving Credit Facility [Member] Revolving Credit Facility [Member] Senior unsecured notes [Member] Term Loan Facility Debt Instrument, Face Amount Interest rate, long-term debt Debt Instrument, Interest Rate, Stated Percentage Gain on extinguishment of debt Gains (Losses) on Extinguishment of Debt Use of portion of debt proceeds Use of portion of debt proceeds Use of portion of debt proceeds Gross proceeds from sale of senior unsecured notes Proceeds from Issuance of Senior Long-term Debt Redemption percentage of principal amount Debt Instrument, Repurchase Percentage of Principal Amount Debt Instrument, Repurchase Percentage of Principal Amount, excluding accrued and unpaid interest Line of credit facility Line of Credit Facility, Maximum Borrowing Capacity Senior credit facility, maximum borrowing availability Line of Credit Facility, Current Borrowing Capacity Line of credit facility, incremental borrowing increase Line of credit facility, incremental borrowing increase Line of credit facility, incremental borrowing increase Letters of credit sublimit as a percentage of total facility commitment Line of Credit Facility, Maximum Borrowing Capacity, Letters of Credit Sublimit as a Percentage of Total Facility Commitment Line of Credit Facility, Maximum Borrowing Capacity, Letters of Credit Sublimit as a Percentage of Total Facility Commitment Line of credit facility, potential increase in maximum borrowing capacity if covenant requirements met Line of Credit Facility, Potential Increase in Maximum Borrowing Capacity if Covenant Requirements Met Line of Credit Facility, Potential Increase in Maximum Borrowing Capacity if Covenant Requirements Met Availability under ABL credit facility Line of Credit Facility, Remaining Borrowing Capacity Letters of Credit Outstanding, Amount Letters of Credit Outstanding, Amount Line of credit facility, outstanding borowings Long-term Line of Credit Percentage spread on debt Debt Instrument, Basis Spread on Variable Rate Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets, Net Goodwill and Intangible Assets Disclosure [Text Block] Operating Units [Abstract] Operating Units. [Abstract] Operating Units Operating Units [Text Block] Supplemental information regarding the entity's reportable segments, as a single block text, including narrative business descriptions of reportable segments and relevent financial disclosures specific to reprortable segments no disclosed elsewhere. Component of Other Income (Loss), Net [Axis] Component of Other Income (Loss), Net [Axis] Component of Other Income (Loss), net [Axis] Component of Other Income (Loss), Net, Name [Domain] Component of Other Income (Loss), Net Name [Domain] Component of Other Income (Loss), Net Name [Domain] Loss on Debt Extinguishment [Member] Loss on Debt Extinguishment [Member] Loss on Debt Extinguishment [Member] Date Range [Axis] Date Range [Axis] Date Range [Axis] Date Range [Domain] Date Range [Domain] Date Range [Domain] Secured Debt [Member] Unsecured Debt [Member] Unsecured Debt [Member] Mortgages [Member] Line of Credit [Member] Line of Credit [Member] Viskase Senior Secured Notes due 2021 [Member] Viskase Senior Secured Notes due 2021 [Member] Viskase Senior Secured Notes due 2021 [Member] ARI Notes due 2020 [Member] ARI Notes due 2020 [Member] ARI Notes due 2020 [Member] Viskase Notes Indenture [Member] Viskase Notes Indenture [Member] 9.875% Viskase Notes Indenture [Member] Viskase Senior Secured Notes due 2018 [Member] Viskase Senior Secured Notes due 2018 [Member] 9.875% Viskase Senior Secured Notes due 2018 "Viskase 9.875% Notes" [Member] Interest reserve amount Interest reserve amount Interest reserve amount Aggregate principal amount issued, long-term debt Loss (gain) on extinguishment of debt Redemption percentage of aggregate principal amount authorized to be redeemed at higher percenatge of principal amount Debt Instrument, Percentage of Aggregate Principal Amount Authorized to be Repurchased at Higher Percenatge of Principal Amount Debt Instrument, Percentage of Aggregate Principal Amount Authorized to be Repurchased at Higher Percenatge of Principal Amount Percentage of aggregate principal amount required to remain outstanding if debt redeemed at higher percenatge of principal amount Debt Instrument, Percentage of Aggregate Principal Amount Required to Remain Outstanding if Debt Redeemed at Higher Percenatge of Principal Amount Debt Instrument, Percentage of Aggregate Principal Amount Required to Remain Outstanding if Debt Redeemed at Higher Percenatge of Principal Amount Property, Plant and Equipment [Abstract] Schedule of Property, Plant and Equipment, Net Property, Plant and Equipment [Table Text Block] Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] Financial Instruments Financial Instruments Disclosure [Text Block] Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entities [Table] Entities [Table] Entity Information [Line Items] Entity Information [Line Items] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Investments and Related Matters [Abstract] Investments and Related Matters [Abstract] Investment and Related Matter [Table] Investment and Related Matter [Table] Investment and Related Matter [Table] Other Segments [Member] Other Segments [Member] Other Segments [Member] Investment and Related Matters [Line Items] Investment and Related Matters [Line Items] Investment and Related Matters [Line Items] Investment Investment [Table Text Block] Other (Loss) Income, Net [Abstract] Other (Loss) Income, Net [Abstract] Schedule of Other Nonoperating Income (Expense) Other Income (Loss), Net [Table Text Block] Table for other income or other expense items (both operating and nonoperating). Sources of nonoperating income or nonoperating expense that may be disclosed, include amounts earned from dividends, interest on securities, profits (losses) on securities, net and miscellaneous other income or income deductions. [Table Text Block] Statement of Comprehensive Income [Abstract] Statement [Table] Statement [Table] Partner Type [Axis] Partner Type [Axis] Partner Type of Partners' Capital Account, Name [Domain] Partner Type of Partners' Capital Account, Name [Domain] Limited partners Limited Partner [Member] General partner General Partner [Member] Statement [Line Items] Statement [Line Items] Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Post-employment benefits Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax Hedge instruments Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Translation adjustments and other Other Comprehensive Income - Translation Adjustments and Other Changes in Other Comprehensive Income Principally includes change in the balance sheet adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity for the period being reported, net of tax. If an entity's functional currency is a foreign currency, translation adjustments result from the process of translating that entity's financial statements into the reporting currency. Includes gain (loss) on foreign currency forward exchange contracts. Includes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. Includes the gain (loss) on a derivative instrument or nonderivative financial instrument that may give rise to a foreign currency transaction gain (loss) and that have been designated and have qualified as hedging instruments for hedges of the foreign currency exposure of a net investment in a foreign operation. Also includes other changes in other comprehensive income not otherwise identified. Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Less: Comprehensive income attributable to non-controlling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive income attributable to Icahn Enterprises Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income attributable to Icahn Enterprises allocable to: Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Accumulated Other Comprehensive Income (Loss) [Abstract] Accumulated Other Comprehensive Income (Loss) [Abstract] Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Income (Loss) [Text Block] Accumulated Other Comprehensive Income (Loss) [Text Block] Other (Loss) Income, Net Other Income and Other Expense Disclosure [Text Block] Statement of Financial Position [Abstract] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Goodwill Goodwill Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Other assets Other Assets Total Assets Accounts payable Accounts Payable Accrued expenses and other liabilities Accrued Liabilities Deferred tax liability Deferred Tax Liabilities, Net Total liabilities Commitments and contingencies (Note 17) Commitments and Contingencies Equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Limited partners: Depositary units: 120,031,377 and 115,900,309 units issued and outstanding at June 30, 2014 and December 31, 2013, respectively Limited Partners' Capital Account General partner General Partners' Capital Account Equity attributable to Icahn Enterprises Total equity Total Liabilities and Equity Energy Segment [Abstract] Energy Segment [Abstract] Transaction Type [Axis] Transaction Type [Axis] Transaction [Domain] Transaction [Domain] Secondary offering [Member] Secondary offering [Member] Secondary offering [Member] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Non-controlling Interests Noncontrolling Interest [Member] Total Partners' Equity Parent [Member] Property location [Axis] Property location [Axis] Property location [Axis] Location [Domain] Location [Domain] Coffeyville, Kansas [Member] Coffeyville, Kansas [Member] Coffeyville, Kansas [Member] Wynnewood, Oklahoma [Member] Wynnewood, Oklahoma [Member] Wynnewood, Oklahoma [Member] Cushing, Oklahoma [Member] Cushing, Oklahoma [Member] Cushing, Oklahoma [Member] Oil and Gas Production Type [Axis] Oil and Gas Production Type [Axis] Production Type [Domain] Production Type [Domain] Petroleum [Member] Crude Oil [Member] Crude Oil Gathering [Member] Crude Oil Gathering [Member] Crude Oil Gathering [Member] 486110 Pipeline Transportation of Crude Oil [Member] 486110 Pipeline Transportation of Crude Oil [Member] Nitrogen Fertilizer [Member] 325311 Nitrogenous Fertilizer Manufacturing [Member] CVR Refining, LP [Member] CVR Refining, LP [Member] CVR Refining, LP [Member] CVR Partners, LP [Member] CVR Partners, LP [Member] CVR Partners, LP [Member] CVR Energy, Inc. [Member] CVR Energy, Inc. [Member] CVR Energy, Inc. [Member] Proceeds from issuance of subsidiary equity Noncontrolling Interest, Increase from Subsidiary Equity Issuance Purchase of addtional subsidiary equity by parent company Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent Barrels per day Production, Barrels of Oil Per Day Production, Barrels of Oil Per Day Production, Barrels of Oil, Storage Capacity Production, Barrels of Oil, Storage Capacity Production, Barrels of Oil, Storage Capacity Production, Barrels of Oil, Combined Refinery Related Storage Capacity Production, Barrels of Oil, Combined Refinery Related Storage Capacity Production, Barrels of Oil, Combined Refinery Related Storage Capacity Production, Barrels of Oil, Leased Storage Capacity Production, Barrels of Oil, Leased Storage Capacity Production, Barrels of Oil, Leased Storage Capacity Ton-per-day ammonia unit facility Production, Tons of Ammonia Per Day Production, Tons of Ammonia Per Day Ton-per-day of Urea and Ammonium Nitrate unit facility Production, Tons of Urea and Ammonium Nitrate Per Day Production, Tons of Urea and Ammonium Nitrate Per Day Cubic feet of hydrogen per day gasifiation complex Production, Cubic Feet of Hydrogen Per Day Production, Cubic Feet of Hydrogen Per Day Net Periodic Benefit Cost [Abstract] Net Periodic Benefit Cost [Abstract] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] Defined Benefit Plans and Other Postretirement Benefit Plans [Domain] Defined Benefit Plan and Other Postretirement Benefit Plan [Domain] Pension Benefits Pension Plan [Member] OPEB Other Postretirement Benefit Plan [Member] Net Periodic Benefit Cost [Line Items] Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Service cost Defined Benefit Plan, Service Cost Interest cost Defined Benefit Plan, Interest Cost Expected return on plan assets Defined Benefit Plan, Expected Return on Plan Assets Amortization of actuarial losses Defined Benefit Plan, Amortization of Gains (Losses) Amortization of prior service credit Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments Net periodic benefit cost Defined Benefit Plan, Net Periodic Benefit Cost Net Income Per LP Unit [Abstract] Net Income Per LP Unit [Abstract] Net Income Per LP Unit Earnings Per Share [Text Block] Debt repurchase percentage of principal amount authorized pursuant to additional requirements [Member] Debt Instrument, Higher Repurchase Percentage of Principal Amount Authorized Pursuant to Additional Requirements [Member] Debt Instrument, Higher Repurchase Percentage of Principal Amount Authorized Pursuant to Additional Requirements [Member] Debt Instrument, Repurchase Date Range, from August 1, 2017 to January 31, 2018 [Member] Debt Instrument, Repurchase Date Range, from August 1, 2017 to January 31, 2018 [Member] Debt Instrument, Repurchase Date Range, from August 1, 2017 to January 31, 2018 [Member] Debt Instrument, Repurchase Date Range, from February 1, 2018 to January 31, 2019 [Member] Debt Instrument, Repurchase Date Range, from February 1, 2018 to January 31, 2019 [Member] Debt Instrument, Repurchase Date Range, from February 1, 2018 to January 31, 2019 [Member] Debt Instrument, Repurchase Date Range, from February 1, 2019 to January 31, 2020 [Member] Debt Instrument, Repurchase Date Range, from February 1, 2019 to January 31, 2020 [Member] Debt Instrument, Repurchase Date Range, from February 1, 2019 to January 31, 2020 [Member] Debt Instrument, Repurchase Date Range, on or after February 1, 2020 [Member] Debt Instrument, Repurchase Date Range, on or after February 1, 2020 [Member] Debt Instrument, Repurchase Date Range, on or after February 1, 2020 [Member] Debt Instrument, Repurchase Date Range, Prior to February 1, 2017 [Member] Debt Instrument, Repurchase Date Range, Prior to February 1, 2017 [Member] Debt Instrument, Repurchase Date Range, Prior to February 1, 2017 [Member] Debt repurchase date range, from January 15, 2013 to January 14, 2014 [Member] Debt Instrument, Repurchase Date Range, from January 15, 2013 to January 14, 2014 [Member] Debt Instrument, Repurchase Date Range, from January 15, 2013 to January 14, 2014 Debt repurchase date range, from January 15, 2014 to January 14, 2015 [Member] Debt Instrument, Repurchase Date Range, from January 15, 2014 to January 14, 2015 [Member] Debt Instrument, Repurchase Date Range, from January 15, 2014 to January 14, 2015 [Member] Debt repurchase date range, on or after January 15, 2015 [Member] Debt Instrument, Repurchase Date Range, on or after January 15, 2015 [Member] Debt Instrument, Repurchase Date Range, on or after January 15, 2015 [Member] Debt repurchase date range, from January 15, 2015 to January 14, 2016 [Member] Debt Instrument, Repurchase Date Range, from January 15, 2015 to January 14, 2016 [Member] Debt Instrument, Repurchase Date Range, from January 15, 2015 to January 14, 2016 [Member] Debt repurchase date range, on or after January 15, 2016 [Member] Debt Instrument, Repurchase Date Range, on or after January 15, 2016 [Member] Debt Instrument, Repurchase Date Range, on or after January 15, 2016 Debt Instrument, Repurchase Date Range, from August 1, 2017 to July 31, 2018 [Member] Debt Instrument, Repurchase Date Range, from August 1, 2017 to July 31, 2018 [Member] Debt Instrument, Repurchase Date Range, from August 1, 2017 to July 31, 2018 [Member] Debt Instrument, Repurchase Date Range, from August 1, 2018 to July 31, 2019 [Member] Debt Instrument, Repurchase Date Range, from August 1, 2018 to July 31, 2019 [Member] Debt Instrument, Repurchase Date Range, from August 1, 2018 to July 31, 2019 [Member] Debt Instrument, Repurchase Date Range, on or after August 1, 2019 [Member] Debt Instrument, Repurchase Date Range, on or after August 1, 2019 [Member] Debt Instrument, Repurchase Date Range, on or after August 1, 2019 [Member] Debt Instrument, Repurchase Date Range, from July 15, 2016 to January 14, 2017 [Member] Debt Instrument, Repurchase Date Range, from July 15, 2016 to January 14, 2017 [Member] Debt Instrument, Repurchase Date Range, from July 15, 2016 to January 14, 2017 [Member] Debt Instrument, Repurchase Date Range, from January 15, 2017 to January 14, 2018 [Member] Debt Instrument, Repurchase Date Range, from January 15, 2017 to January 14, 2018 [Member] Debt Instrument, Repurchase Date Range, from January 15, 2017 to January 14, 2018 [Member] Debt Instrument, Repurchase Date Range, on or after January 31, 2018 [Member] Debt Instrument, Repurchase Date Range, on or after January 31, 2018 [Member] Debt Instrument, Repurchase Date Range, on or after January 31, 2018 [Member] Debt Instrument, Repurchase Date Range, on or after February 15, 2017 [Member] Debt Instrument, Repurchase Date Range, on or after February 15, 2017 [Member] Debt Instrument, Repurchase Date Range, on or after February 15, 2017 [Member] 2017 and 2019 Notes [Member] 2017 and 2019 Notes [Member] 2017 and 2019 Notes [Member] Additional 2020 Notes [Member] Additional 2020 Notes [Member] Additional 2020 Notes [Member] Initial Notes [Member] Initial Issuance of 7.75% Senior Unsecured Notes due 2016 and 8% Senior Unsecured Notes due 2018 combined [Member] 2016 Additional Notes [Member] 2010 Additional Notes due 2016 [Member] 2010 Additional Notes due 2016 [Member] 7.75% senior unsecured notes due 2016 [Member] 8% senior unsecured notes due 2018 [Member] 2018 Additional Notes [Member] 2010 Additional Notes due 2018 [Member] 2010 Additional Notes due 2018 [Member] 2010 Additional Notes [Member] 2010 Additional Notes [Member] 2010 Additional Issuance to the 2016 and 2018 Notes Series [Member] 2012 Additional Notes [Member] 2012 Additional Notes [Member] Feb 2012 Additional Issuance to the 8% Senior Unsecured Notes due 2018 [Member] Variable Rate Senior Unsecured Convertible Notes [Member] Variable Rate Senior Unsecured Convertible Notes [Member] Variable Rate Senior Unsecured Convertible Notes [Member] 2010-2012 Notes [Member] 2010-2012 Notes [Member] 2010-2012 Notes [Member] Debt Instrument, Basis Spread on Variable Rate Proceeds from Issuance of Debt Proceeds from Issuance of Debt Variable rate notes, distribution amount Debt Instrument, Distribution Amount Debt Instrument, Distribution Amount Repayments of debt Repayments of Long-term Debt Additional indebtedness allowed per debt covenants Additional Indebtedness Allowed Per Debt Covenants Additional Indebtedness Allowed Per Debt Covenants Reporting unit [Axis] Reporting unit [Axis] Reporting unit [Axis] VCS [Member] VCS [Member] VCS [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Sales Revenue, Goods, Net [Member] Sales Revenue, Goods, Net [Member] Accounts Receivable [Member] Accounts Receivable [Member] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Customer Concentration Risk [Member] Customer Concentration Risk [Member] Realized loss on interest rate swaps reclassified from AOCI into interest expense Unrealized net gains (losses) on price hedge contracts Accumulated other comprehensive income loss commodity price hedges. Accumulated other comprehensive income loss commodity price hedges. Unrealized net gains on foreign currency hedge contracts Accumulated other comprehensive income loss foreign currency hedges. Accumulated other comprehensive income loss foreign currency hedges. Number of customers accounting for more than 6% of direct sales Concentration Risk, Number of Customers Concentration Risk, Number of Customers Concentration of risk threshold, percentage of direct sales Concentration Risk, Threshold Concentration Risk, Threshold Concentration threshhold, balance sheet Concentration threshhold, balance sheet Concentration threshhold, balance sheet Organization, Consolidation and Presentation of Financial Statements [Abstract] Icahn Enterprises G.P. [Member] Icahn Enterprises G.P. [Member] Icahn Enterprises G.P. [Member] Restricted Cash and Cash Equivalents [Axis] Restricted Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Restricted cash [Member] Restricted cash [Member] Restricted cash Members or Partners [Axis] Members or Partners [Axis] Members or Partners, including managing members or members or general partners or limited partners [Axis] Partner Name [Domain] Partner Name [Domain] Partner Name [Domain] Principal Owners and Affiliates [Member] Principal Owners and Affiliates [Member] Mr. Icahn and certain other entities beneficially owned by Mr. Icahn Icahn Enterprises G.P. [Member] Percentage of equity ownership in operating subsidiary General partner ownership percentage in Icahn Enterprises Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest General partner ownership interest in Icahn Enterprises Holdings Subsidiary of Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest Subsidiary of Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest Aggregate general partner ownership interest of parent and operating subsidiary Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Aggregate Ownership interest of Parent and Holding Company Subsidiaries Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Aggregate Ownership interest of Parent and Holding Company Subsidiaries Affiliate ownership interest in Icahn Enterprises (in units) Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest, Units Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest, Units Affiliate ownership interest in Icahn Enterprises Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest Fair value of long-term debt Long-term Debt, Fair Value Goodwill and Intangible Assets [Table] Goodwill and Intangible Assets [Table] Goodwill and Intangible Assets [Table] Dimitrovgradskiy Zavod Vkladishey [Member] Dimitrovgradskiy Zavod Vkladishey [Member] Dimitrovgradskiy Zavod Vkladishey [Member] Lumiere [Member] Lumiere [Member] Lumiere [Member] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Customer relationships Customer Relationships [Member] Gasification technology license Gasification Technology [Member] Gasification Technology [Member] Goodwill and Intangible Assets [Line Items] Goodwill and Intangible Assets [Line Items] Goodwill and Intangible Assets [Line Items] Amortization expense associated with definite-lived intangible assets Amortization of Intangible Assets Goodwill, Gross Goodwill, Gross Goodwill, Period Increase (Decrease) Goodwill, Period Increase (Decrease) Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Inventories, Net [Abstract] Inventories, Net [Abstract] Schedule of Inventory, Current [Table Text Block] Schedule of Inventory, Current [Table Text Block] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Goodwill [Line Items] Goodwill [Line Items] Goodwill, Accumulated Impairment Goodwill, Impaired, Accumulated Impairment Loss Goodwill, Net Carrying Value Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of changes in accumulated other comprehensive income [Table Text Block] Schedule of changes in accumulated other comprehensive income [Table Text Block] Segment Reporting, Policy [Policy Text Block] Segment Reporting, Policy [Policy Text Block] Investment Segment [Abstract] Investment Segment [Abstract] Operating Units [Table] OPerating Units [Table] OPerating Units [Table] Related Party Transactions, by Transaction Type [Axis] Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] Investment in Funds [Member] Hedge Funds, Equity [Member] Fair value of our interest in Funds of subsidiary Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest, Fair Value The fair value of investment held in the subsidiary investment funds by the limited liability company or limited partnership. Related party transaction, balance Related party transaction, balance Related party transaction, balance Related Party Transactions [Abstract] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Related Party Transactions Related Party Transactions Disclosure [Text Block] Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Consolidated Statements of Cash Flows [Abstract] Consolidated Statements of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash (used in) provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Net gain from securities transactions Gain (Loss) on Investments Purchases of securities Payments to Acquire Marketable Securities Proceeds from sales of securities Proceeds from Sale and Maturity of Marketable Securities Purchases to cover securities sold, not yet purchased Purchases to Cover Securities Sold Not Yet Purchased Purchases to cover securities sold not yet purchased Proceeds from securities sold, not yet purchased Investment Sold, Not yet Purchased, Sale Proceeds Changes in receivables and payables relating to securities transactions Increase (Decrease) in Broker-Dealer Related Receivables (Payables), Net (Gain) loss on disposal of assets Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax Depreciation and amortization Depreciation and amortization, including non-cash interest expense The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets as well as the non-cash portion of interest expense as a result of amortizing debt discount, premiums and financing costs. Deferred taxes Increase (Decrease) in Deferred Income Taxes Other, net Other Operating Activities, Cash Flow Statement Changes in cash held at consolidated affiliated partnerships and restricted cash Increase (Decrease) in Restricted Cash for Operating Activities Changes in other operating assets and liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Net cash (used in) provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Capital expenditures Payments to Acquire Productive Assets Acquisitions of business, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Net payments associated with business dispositions Net payments associated with business dispositions Net payments associated with business dispositions Proceeds from sale of investments Proceeds from Sale of Other Investments Purchases of investments Payments to Acquire Investments Other, net Payments for (Proceeds from) Other Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Investment segment contributions Investment Management Contributions Contributions from non-controlling investors in the Private Funds. Proceeds from equity offerings Proceeds from Partnership Contribution Partnership distributions Distribution Made to Limited Partner, Cash Distributions Paid Proceeds from offering of subsidiary equity Proceeds from Issuance or Sale of Equity Distributions to non-controlling interests in subsidiaries Payments to Noncontrolling Interests Proceeds from issuance of senior unsecured notes Proceeds from Issuance of Unsecured Debt Proceeds from other borrowings Proceeds from Other Debt Repayments of other borrowings Repayments of Unsecured Debt Repayments of other borrowings Repayments of Debt and Capital Lease Obligations Change in restricted cash relating to variable rate note discharge Proceeds from (Repayments of) Restricted Cash, Financing Activities Other, net Proceeds from (Payments for) Other Financing Activities Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents Net increase in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Supplemental information: Supplemental Cash Flow Information [Abstract] Cash payments for interest, net of amounts capitalized Interest Paid, Net Net cash payments for income taxes Income Taxes Paid, Net Distribution payable to Icahn Enterprises unitholders Distrubtion payable to LP unit holders Distrubtion payable to LP unit holders Construction in progress additions included in accounts payable Construction in Progress Expenditures Incurred but Not yet Paid Changes in accounts payable related to construction in progress additions Changes in accounts payable related to construction in progress additions Changes in accounts payable related to construction in progress additions Equity contracts Equity Contract [Member] Net gain (loss) from investment activities [Member] Net Gain from Investment Activities [Member] Net Gain from Investment Activities [Member] Gain (Loss) Recognized in Income Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Other assets [Member] Other Assets [Member] Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items] Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items] Derivatives Not Designated as Hedging Instruments, Fair Value [Line Items] Asset Derivatives, Netting across contract types Derivative Asset, Fair Value, Amount Offset Against Collateral Liability Derivatives, Netting across contract types Derivative Liability, Fair Value, Amount Offset Against Collateral Asset Derivatives, Total Derivative contracts at fair value (liability) Loss Contingencies [Table] Loss Contingencies [Table] Settlement loss with taxing authority [Member] Settlement loss with taxing authority [Member] Settlement loss with taxing authority [Member] Environmental Remediation Site [Axis] Environmental Remediation Site [Axis] Environmental Remediation Site [Domain] Environmental Remediation Site [Domain] Cleveland OH Scrap Processing Facility [Member] Cleveland OH Scrap Processing Facility [Member] Cleveland OH Scrap Processing Facility [Member] Tropicana [Member] Tropicana [Member] Tropicana [Member] PSC Metals [Member] PSC Metals [Member] PSC Metals [Member] WPH [Member] WPH [Member] WPH [Member] ACF [Member] ACF [Member] ACF [Member] Starfire Holding Corporation [Member] Starfire Holding Corporation [Member] Starfire Holding Corporation [Member] Principal Owners and Affiliates [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Operating Leases, Rent Expense Operating Leases, Rent Expense Accrued environmental liabilities Accrual for Environmental Loss Contingencies Possible material additional losses, above and beyond best estimate of required remediation costs Site Contingency, Loss Exposure in Excess of Accrual, Best Estimate Compensatory damages sought Loss Contingency, Damages Sought, Value Tax refund as result of Trop AC tax appeal settlement Tax refund as result of Trop AC tax appeal settlement Tax refund as result of Trop AC tax appeal settlement Other income, net Other Nonoperating Income (Expense) Average increase in annual property tax expense Average Increase in Annual Property Tax Expense Average Increase in Annual Property Tax Expense Number of scrap processing facilities requiring refrigerant extraction services Number of Scrap Processing Facilities Requiring Refrigerant Extraction Services Number of Scrap Processing Facilities Requiring Refrigerant Extraction Services Number of years refrigerant extraction services must be offered at scrap processing facilities Number of Years Refrigerant Extraction Services Must be Offered at Scrap Processing Facilities Number of Years Refrigerant Extraction Services Must be Offered at Scrap Processing Facilities Costs associated with required injunctive relief, high estimate Environmental Compliance Costs, Anticipated Cost Environmental Compliance Costs, Anticipated Cost Civil penalty assessed and paid Loss Contingency, Damages Paid, Value Affiliate ownership in parent company general partner Affiliate ownership in parent company general partner Affiliate ownership in parent company general partner Affiliate ownership interest Defined Benefit Plan, Funded Status of Plan Defined Benefit Plan, Funded Status of Plan Ownership Percentage by Mr. Icahn Ownership Percentage by Principal Owner Ownership percentage by principal owner in related party Subsidiary Indemnity Agreement, Pension Funding Contingencies As A Result of Being In The Controlled Group, Distribution Limitation, Net Worth Floor Subsidiary Indemnity Agreement, Pension Funding Contingencies As A Result of Being In The Controlled Group, Distribution Limitation, Net Worth Floor Subsidiary Indemnity Agreement, Pension Funding Contingencies As A Result of Being In The Controlled Group, Distribution Limitation, Net Worth Floor Asset Retirement Obligation Asset Retirement Obligation Tax to be paid as result of Trop AC tax appeal settlement Tax to be paid as result of Trop AC tax appeal settlement Tax to be paid as result of Trop AC tax appeal settlement Real estate tax credits used Real estate tax credits used Real estate tax credits used Professional Fees Professional Fees Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Land Land [Member] Buildings and improvements Building and Building Improvements [Member] Machinery, equipment and furniture Machinery, Equipment, and Furniture [Member] Machinery, Equipment, and Furniture [Member] Assets leased to others Assets Leased to Others [Member] Construction in progress Construction in Progress [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Property, plant and equipment, useful life (in years) Property, Plant and Equipment, Useful Life Property, plant and equipment, gross Property, Plant and Equipment, Gross Less: Accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property, plant and equipment, net Depreciation and amortization expense related to property, plant and equipment Depreciation Schedule of Goodwill Schedule of Goodwill [Table Text Block] Schedule of Definite-Lived and Infinite-Lived Intangible Assets Schedule of Finite-Lived and Infinite-Lived Intangible Assets [Table Text Block] Schedule of Finite-Lived and Infinite-Lived Intangible Assets, Excluding Goodwill [Table Text Block] Tranche B Loan [Member] Tranche B Loan [Member] Tranche B Loan [Member] Tranche C Loan [Member] Tranche C Loan [Member] Tranche C Loan [Member] Term of Interest Rate Derivatives Term of Interest Rate Derivatives Term of Interest Rate Derivatives Revolving credit facility, unused borrowing availability Amount deposited in term letter of credit account under credit facility Amount deposited in term letter of credit account under credit facility Amount deposited in term letter of credit account under credit facility Letters of credit outstanding Expected extinguishment of debt Expected extinguishment of debt Expected extinguishment of debt Long-term Debt, Gross Long-term Debt, Gross Line of Credit Facility Aggregate Principal Amount Upon Acceleration Line of Credit Facility Aggregate Principal Amount Upon Acceleration Line of Credit Facility Aggregate Principal Amount Upon Acceleration Income Tax Contingency [Table] Income Tax Contingency [Table] Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] Income tax expense Income Tax Expense (Benefit) Income before income tax expense Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Effective income tax rate Effective Income Tax Rate Reconciliation, Percent Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Senior credit facility Line of credit annual fee on borrowed amount Line of credit annual fee on borrowed amount The fee, expressed as a percentage of the line of credit facility, for used credit capacity under the credit facility. Inventory Disclosure [Text Block] Inventory Disclosure [Text Block] Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Dividend Declared [Member] Dividend Declared [Member] Capital Units by Class [Axis] Capital Units by Class [Axis] Capital Unit, Class [Domain] Capital Unit, Class [Domain] Depositary units [Member] Common Stock [Member] Shareholders' Equity Class [Axis] Shareholders' Equity Class [Axis] Fair Value by Shareholders' Equity Class [Domain] Fair Value by Shareholders' Equity Class [Domain] Subsequent Event [Line Items] Subsequent Event [Line Items] Distribution declared per depositary unit Common Stock, Dividends, Per Share, Declared Property damage insurance deductible Property damage insurance deductible Property damage insurance deductible Workers compensation accident deductible Workers compensation accident deductible Workers compensation accident deductible Income Statement [Abstract] Revenues: Revenues [Abstract] Net sales Sales Revenue, Goods, Net Other revenues from operations Other Revenue, Net Net gain (loss) from investment activities Gain (Loss) on Investments, Excluding Other than Temporary Impairments Interest and dividend income Interest and Dividend Income, Operating Total Revenues Revenues Expenses: Costs and Expenses [Abstract] Cost of goods sold Cost of Goods Sold Other expenses from operations Other Cost and Expense, Operating Selling, general and administrative Selling, General and Administrative Expense Impairment Asset Impairment Charges Interest expense Interest Expense Total Expenses Total Expenses Total of all operating and non-operating costs and expenses. Income before income tax expense Income tax expense Net income Less: net income attributable to non-controlling interests Net Income (Loss) Attributable to Noncontrolling Interest Net income attributable to Icahn Enterprises Net Income (Loss) Attributable to Parent Net income attributable to Icahn Enterprises allocable to: Net Income (Loss) Attributable to Parent [Abstract] Limited partners Net Income (Loss) Allocated to Limited Partners General partner Net Income (Loss) Allocated to General Partners Net income attributable to Icahn Enterprises Basic income per LP unit Net Income (Loss), Per Outstanding Limited Partnership Unit, Basic, Net of Tax [Abstract] Basic income per LP unit Net Income (Loss), Per Outstanding Limited Partnership Unit, Basic, Net of Tax Basic weighted average LP units outstanding Weighted Average Limited Partnership Units Outstanding, Basic Diluted income per LP unit Earnings Per Share, Diluted [Abstract] Diluted income per LP unit Net Income (Loss), Net of Tax, Per Outstanding Limited Partnership Unit, Diluted Diluted weighted average LP units outstanding Weighted Average Limited Partnership Units Outstanding, Diluted Cash distributions declared per LP unit Distributions Per Limited Partnership Unit Outstanding, Basic Schedule Of Earnings Per LP Unit [Table] Schedule Of Earnings Per LP Unit [Table] Schedule Of Earnings Per LP Unit [Table] Earnings Per LP Unit [Line Items] Earnings Per LP Unit [Line Items] Earnings Per LP Unit [Line Items] Net income attributable to Icahn Enterprises allocable to limited partners (98.01% allocation) Dilutive Securities, Effect on Basic Earnings Per Share, Dilutive Convertible Securities Dilutive Securities, Effect on Basic Earnings Per Share, Dilutive Convertible Securities Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities Dilutive effect of unit distribution declared (income) Dilutive securities, effect on earnings per unit from distribution of depositary units Dilutive securities, effect on earnings per unit from distribution of depositary units Dilutive effect of unit distribution declared (units) Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of unit distribution. Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of unit distribution. Units issues in connection with equity offering (ones) Stock Issued During Period, Shares, New Issues Equity offering per share amount (ones) Development Stage Entities, Equity Issuance, Per Share Amount Underwriter option to purchase additional depositary units Underwriter option to purchase additional depositary units Underwriter option to purchase additional depositary units Proceeds from equity offering Distribution Made to Limited Partner, Unit Distribution Distribution Made to Limited Partner, Unit Distribution Debt discount rate at time of issuance Debt discount rate at time of issuance Debt discount rate at time of issuance Letter of credit facility, maximum aggregate amount Letter of Credit Facility, Maximum Borrowing Capacity Letter of Credit Facility, Maximum Borrowing Capacity Trailing Months Used to Calculate Leverage Ratios Trailing Months Used to Calculate Leverage Ratios Trailing Months Used to Calculate Leverage Ratios Amortization included in interest expense Amortization of Financing Costs and Discounts Debt Debt Disclosure [Text Block] Credit Default Swap, Selling Protection [Member] Credit Default Swap, Selling Protection [Member] Equity swaps Equity Swap [Member] Foreign currency forwards Foreign Exchange Forward [Member] Long Notional Exposure Notional Exposure of Derivatives, Long Position Notional Exposure of Derivatives, Long Position Short Notional Exposure Notional Exposure of Derivatives, Short Position Notional Exposure of Derivatives, Short Position Fair Value, Instruments Classified in Shareholders' Equity Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Instruments Classified in Shareholders' Equity Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Unrealized losses included in earnings related to Level 3 investments Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Schedule of Significant Accounting Policies [Table] Schedule of Significant Accounting Policies [Table] Schedule of Significant Accounting Policies [Table] Schedule of Significant Accounting Policies [Line Items] Schedule of Significant Accounting Policies [Line Items] Schedule of Significant Accounting Policies [Line Items] Component of Other Income (Loss), Net [Table] Component of Other Income (Loss), Ne [Table] Component of Other Income (Loss), Net [Table] Entity by Location [Axis] Entity by Location [Axis] France [Member] France [Member] France [Member] Realized and unrealized gain (loss) on derivatives, net Unrealized gain loss on derivatives [Member] Unrealized gain loss on derivatives (Loss) gain on disposition of assets Gain (loss) on dispositions of assets [Member] Gain (loss) on dispositions of assets Equity earnings from non-consolidated affiliates Income (loss) from non-consolidated affiliates [Member] Income (loss) from non-consolidated affiliates [Member] Foreign currency translation loss Foreign Currency Gain (Loss) [Member] Other Component of Other Income (Loss), Net [Line Items] Component of Other Income (Loss), Net [Line Items] Component of Other Income (Loss), Net [Line Items] ARL [Member] ARL [Member] ARL [Member] New ARL [Member] [Member] New ARL [Member] [Member] New ARL [Member] [Member] NCF I Term Loan [Member] NCF I Term Loan [Member] NCF I Term Loan [Member] NCF II Term Loan [Member] NCF II Term Loan [Member] NCF II Term Loan [Member] RCF Term Loan [Member] RCF Term Loan [Member] RCF Term Loan [Member] Class A-1 Notes [Member] Class A-1 Notes [Member] Class 2012 A-1 Notes [Member] Heartland Bank Term Loan [Member] [Member] Heartland Bank Term Loan [Member] [Member] Heartland Bank Term Loan [Member] [Member] Class A-2 Notes [Member] Class A-2 Notes [Member] Class A-2 Notes [Member] Class 2014 A-1 Notes [Member] Class 2014 A-1 Notes [Member] Class 2014 A-1 Notes [Member] Class 2014 A-2 Notes [Member] Class 2014 A-2 Notes [Member] Class 2014 A-2 Notes [Member] Draw on term loan, initial draw Draw on term loan, initial draw Draw on term loan Long-term Debt Long-term Debt Pledged assets Pledged Assets, Other, Not Separately Reported on Statement of Financial Position Additional borrowing availability Additional borrowing availability Additional borrowing availability Future debt expected to be incurred by new capitalized entity Future debt expected to be incurred by new capitalized entity Future debt expected to be incurred by new capitalized entity Proceeds from Issuance of Long-term Debt Proceeds from Issuance of Long-term Debt Use of portion of debt proceeds to repay other debt Use of portion of debt proceeds to repay other debt Use of portion of debt proceeds to repay other debt Proceeds from issuance of Long-term debt after proceeds used to refinance prior debt Proceeds from issuance of Long-term debt after proceeds used to refinance prior debt Proceeds from issuance of Long-term debt after proceeds used to refinance prior debt Investments and Related Matters Investments and Other Noncurrent Assets [Text Block] Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) [Table] Foreign currency contracts Interest expense Interest Expense [Member] Cost of goods sold Cost of Sales [Member] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Schedule of Definite-Lived and Indefinite-Lived Intangible Assets, by Segment [Table] Schedule of Finite-Lived and Indefinite-Lived Intangible Assets, by Segment [Table] Schedule of Finite-Lived and Indefinite-Lived Intangible Assets, by Segment [Table] Developed technology Developed Technology Rights [Member] In-place leases Leases, Acquired-in-Place [Member] Other Unclassified Indefinite-lived Intangible Assets [Member] Indefinite-lived Intangible Assets by Major Class [Axis] Indefinite-lived Intangible Assets [Axis] Indefinite-lived intangible assets: Indefinite-lived Intangible Assets, Major Class Name [Domain] Trademarks and brand names Trademarks [Member] Gaming licenses Gaming license [Member] Gaming license Intangible Assets, [Line Items] Finite-Lived and Infinite-Lived Intangible Assets, by Segment [Line Items] Finite-Lived and Infinite-Lived Intangible Assets, by Segment [Line Items] Definite-lived intangible assets: [Abstract] Finite-Lived Intangible Assets, Gross and Net [Abstract] Finite-Lived Intangible Assets, Gross and Net [Abstract] Definite-lived intangible assets, Gross Carrying Amount Finite-Lived Intangible Assets, Gross Definite-lived intangible assets, Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Definite-lived intangible assets, Net Carrying Value Finite-Lived Intangible Assets, Net Indefinite-lived intangible assets: [Abstract] Indefinite-Lived Intangible Assets, Gross and Net [Abstract] Indefinite-Lived Intangible Assets, Gross and Net [Abstract] Indefinite-lived intangible assets, Net Carrying Value Indefinite-Lived Intangible Assets (Excluding Goodwill) Intangible assets, net Gaming Segment [Abstract] Gaming Segment [Abstract] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Groups, Including Discontinued Operations, Name [Domain] Disposal Groups, Including Discontinued Operations, Name [Domain] River Palms [Member] River Palms [Member] River Palms [Member] Location of operations, State or country [Axis] Location of operations, State or country [Axis] Location of operations, State or country [Axis] State or country of operations [Domain] State or country of operations [Domain] State or country of operations [Domain] LOUISIANA LOUISIANA NEVADA NEVADA INDIANA INDIANA NEW JERSEY NEW JERSEY ARUBA ARUBA MISSISSIPPI MISSISSIPPI Number of casinos Number of Casinos Number of Casinos Owned and Operated Proceeds from Divestiture of Businesses Proceeds from Divestiture of Businesses Square footage of casino space Casino space, square footage Casino space, square footage Number of slot machines Number of Slot Machines Number of Slot Machines Number of table games Number of Table Games Number of Table Games Number of hotel rooms Number of Hotel Rooms Number of Hotel Rooms Equity: Stockholders' Equity Attributable to Parent [Abstract] Limited partners: Depositary units issued Limited Partners' Capital Account, Units Issued Limited partners: Depositary units outstanding Limited Partners' Capital Account, Units Outstanding Property, Plant and Equipment, Net [Abstract] Property, Plant and Equipment, Net Property, Plant and Equipment Disclosure [Text Block] Raw materials Inventory, Raw Materials, Net of Reserves Work in process Inventory, Work in Process, Net of Reserves Finished goods Inventory, Finished Goods, Net of Reserves Inventory, net Segment Reporting Segment Reporting Disclosure [Text Block] Schedule of Condensed Income Statement by Segment Condensed Income Statement [Table Text Block] Schedule of Condensed Financial Statements by Segment Condensed Financial Statements [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Investments [Table] Schedule of Investments [Table] Schedule of Investments [Line Items] Schedule of Investments [Line Items] Equity method investments Equity Method Investments Other investments Other Investments Investments Other Segments and Holding Company [Member] Other Segments and Holding Company [Member] Fair Value Measurements, Nonrecurring [Table Text Block] Fair Value Measurements, Nonrecurring [Table Text Block] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of investments measured at fair value with Level 3 Input Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Description of Business and Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Environmental Issue [Axis] Environmental Issue [Axis] Environmental Issue [Axis] Environmental Issue [Domain] Environmental Issue [Domain] Environmental Issue [Domain] Litigation Claimant [Axis] Litigation Claimant [Axis] Litigation Claimant [Axis] Litigation Claimant [Domain] Litigation Claimant [Domain] Litigation Claimant [Domain] Geographical [Axis] Geographical [Axis] Segment, Geographical [Domain] Geographical [Domain] CRRM [Member] CRRM [Member] CRRM [Member] Unrecorded Unconditional Purchase Obligation Unrecorded Unconditional Purchase Obligation Unrecorded Unconditional Purchase Obligations due over multiple years Unrecorded Unconditional Purchase Obligations due over multiple years Unrecorded Unconditional Purchase Obligations due over multiple years Civil penalty paid Environmental Remediation Expense Environmental Remediation Expense Cost of RINs Cost of RINs Expenses incurred to purchase additional rewnewable identification numbers Biofuel blending obligation Biofuel blending obligation Biofuel blending obligation Asset Derivatives, Total AOCI, Post-employment benefts, net of tax Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax AOCI, Hedge instruments, net of tax Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax AOCI, Translation adjustments and other, net of tax Accumulated Other Comprehensive Income (Loss), Translation adjustments and other, net of tax Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses. Also includes other immaterial balances. Accumulated other comprehensive loss, net of tax Accumulated Other Comprehensive Income (Loss), Net of Tax OCI, Post-employment benefts before reclassificaitons, net of tax Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Reclassification Adjustments, Net of Tax OCI, Hedge instruments before reclassificaitons, net of tax Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax OCI, Translation adjustments and other before reclassificaitons, net of tax Other comprehensive income, translation adjustments and other, before reclassificaitons, net of tax Other comprehensive income, translation adjustments and other, before reclassificaitons, net of tax Other comprehensive income, before reclassifications to income Other comprehensive income, before reclassifications to income Other comprehensive income, before reclassifications to income OCI, Post-employment benefts reclassificaitons to income, net of tax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Gain (Loss), Net of Tax OCI, Hedge instruments reclassificaitons to income, net of tax OCI, Translation adjustments and other reclassificaitons to income, net of tax Reclassificaion of translation adjustments and other in AOCI into earnings, net of tax Reclassificaion of translation adjustments and other in AOCI into earnings, net of tax Other comprehensive income, portion representing reclassificaitons to earnings Other comprehensive income, portion representing reclassificaitons to earnings Other comprehensive income, portion representing reclassificaitons to earnings OCI, Post-employment benefts, net of tax OCI, Hedge instruments, net of tax OCI, Translation adjustments and other, net of tax Schedule Of Earnings Per LP Unit Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Impairment of Long-Lived Assets Held-for-use Impairment of Long-Lived Assets Held-for-use Fair Value Of Property Plant And Equipment Impaired During Period Fair Value Of Property Plant And Equipment Impaired During Period Fair Value Of Property Plant And Equipment Impaired During Period Marketable equity and debt securities Available-for-sale Securities Other liabilities Other Liabilities, Fair Value Disclosure Fair value of derivative and other liabilities Number of reportable segments Number of Reportable Segments Net gain from investment activities Other (loss) income, net Total Revenues Total Expenses Supplemental information: Supplemental Income Statement Elements [Abstract] Capital expenditures Payments to Acquire Property, Plant, and Equipment Depreciation and amortization Depreciation, Depletion and Amortization Pensions,Other Post-employment Benefits and Employee Benefit Plans Pension and Other Postretirement Benefits Disclosure [Text Block] Statement of Partners' Capital [Abstract] Increase (Decrease) in Partners' Capital [Roll Forward] Increase (Decrease) in Partners' Capital [Roll Forward] Equity Net income Other comprehensive income Partnership distributions Partners' Capital Account, Distributions Distributions to non-controlling interests in subsidiaries Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Subsidiary equity offering Proceeds from Noncontrolling Interests Changes in subsidiary equity and other Stockholders' Equity, Other Equity Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Investment Type [Axis] Investment Type [Axis] Investment Type Categorization [Domain] Investments [Domain] Equity Method Investments [Member] Equity Method Investments [Member] Investee [Axis] Investee [Axis] Investee [Axis] Investee Name [Domain] Investee Name [Domain] Investee Name [Domain] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair value of equity method investment under fair value option Equity Method Investments, Fair Value Disclosure Fair value option, recorded gains (losses) Fair Value, Option, Changes in Fair Value, Gain (Loss) Icahn Capital [Member] Icahn Capital [Member] Icahn Capital [Member] ARI [Member] ARI [Member] ARI [Member] AEP Leasing [Member] AEP Leasing [Member] AEP Leasing [Member] Expense sharing agreement [Member] Expense Sharing Agreement [Member] Expense Sharing Agreement [Member] Railcar Sales [Member] Railcar Sales [Member] Railcar Sales [Member] Purchase of railcars [Member] Purchase of railcars [Member] Purchase of railcars [Member] Percentage fair value of investments in Funds that is attributable to Mr. Icahn Percentage fair value of investments in Funds that is attributable to Mr. Icahn Percentage fair value of investments in Funds that is attributable to Mr. Icahn Expenses charged by related party Related Party Transaction, Amounts of Transaction Funding Commitment, Total Amount Funding Commitment, Total Amount Funding Commitment, Total Amount Related Party Transaction, Other Revenues from Transactions with Related Party Related Party Transaction, Other Revenues from Transactions with Related Party Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required Related Party Transaction, Expenses from Transactions with Related Party Related Party Transaction, Expenses from Transactions with Related Party Option to purchase additinal railcars, number of cars Option to purchase additinal railcars, number of cars Option to purchase additinal railcars, number of cars Option to purchase additional railcars Option to purchase additional railcars Option to purchase additional railcars Railcars purchased Railcars purchased Railcars purchased Purchase price of railcars Purchase price of railcars Purchase price of railcars Accumulated other comprehensive loss MASSACHUSETTS MASSACHUSETTS FLORIDA FLORIDA Viskase [Member] Viskase [Member] Viskase [Member] Nnumber of Manufacturing Facilities Nnumber of Manufacturing Facilities Nnumber of Manufacturing Facilities Number of Distribution Centers Number of Distribution Centers Number of Distribution Centers Disclosure on Geographic Areas, Revenue from External Customers Attributed to Foreign Countries, Percentage Disclosure on Geographic Areas, Revenue from External Customers Attributed to Foreign Countries, Percentage Disclosure on Geographic Areas, Revenue from External Customers Attributed to Foreign Countries, Percentage Number of Real Estate commercial rental properties Number of Real Estate Properties Number of units of residential housing in future development Number of Units of Residential Housing in Future Development Number of Units of Residential Housing in Future Development