Supplemental Cash Flow Information [Abstract] Supplemental cash flow information Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Accumulated Other Comprehensive Income (Loss) [Abstract] Accumulated Other Comprehensive Income (Loss) [Abstract] Changes In Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Income (Loss) [Text Block] Accumulated Other Comprehensive Income (Loss) [Text Block] Basis of Presentation and Summary of Significant Accounting Policies [Abstract] Basis of Presentation and Summary of Significant Accounting Policies [Abstract] Organization, Consolidation and Presentation of Financial Statements [Table] Organization, Consolidation and Presentation of Financial Statements [Table] Organization, Consolidation and Presentation of Financial Statements [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Attributable to Icahn Enterprises Attributable to Icahn Enterprises [Member] Attributable to Icahn Enterprises [Member] Cost of goods sold Cost of Goods, Total [Member] Income tax expense Income tax expense [Member] Income tax expense [Member] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Cash and cash equivalents Cash and Cash Equivalents [Member] Cash held at consolidated affiliated partnerships and restricted cash Cash held at consolidated affiliated partnerships and restricted cash [Member] Cash held at consolidated affiliated partnerships and restricted cash Investments Investments [Member] Due from brokers Due from broker [Member] Due from broker [Member] Property, plant and equipment, net Property, Plant and Equipment [Member] Deferred tax liability Deferred tax liability [Member] Deferred tax liability [Member] Total equity Stockholders' Equity, Total [Member] Inventories, net Inventories [Member] Intangible assets, net Intangible assets, net [Member] Intangible assets, net [Member] Other assets Other Assets [Member] Accounts payable, accrued expenses and other liabilities Accounts payable, accrued expenses and other liabilities [Member] Accounts payable, accrued expenses and other liabilities [Member] Securities sold, not yet purchased, at fair value Securities Sold, Not yet Purchased [Member] Due to brokers Due to brokers [Member] Due to brokers [Member] Debt Debt [Member] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Icahn Enterprises Holdings Icahn Enterprises Holdings [Member] Icahn Enterprises Holdings [Member] Segments [Axis] Segments [Axis] Segment [Domain] Segments [Domain] Energy Segment Energy Segment [Member] Energy Segment [Member] Real Estate Segment Real Estate Segment [Member] Real Estate Segment [Member] Automotive Segment Automotive Segment [Member] Automotive Segment [Member] Food Packaging Segment Food Packaging Segment [Member] Food Packaging Segment [Member] Other Segments Other Segments [Member] Restricted Cash and Cash Equivalents [Axis] Restricted Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Cash held at consolidated affiliated partnerships Cash held at consolidated affiliated partnerships [Member] Cash held at consolidated affiliated partnerships Restricted cash Restricted cash [Member] Restricted cash Organization, Consolidation and Presentation of Financial Statements [Line Items] Organization, Consolidation and Presentation of Financial Statements [Line Items] [Line Items] for Organization, Consolidation and Presentation of Financial Statements [Table] Number of leases Number of leases Number of leases Operating lease right-of-use asset Operating Lease, Right-of-Use Asset New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income Prior period reclassification adjustment Prior Period Reclassification Adjustment Operating lease liability Operating Lease, Liability Financing lease right-of-use asset Finance Lease, Right-of-Use Asset Financing lease liability Finance Lease, Liability Percentage of equity ownership in operating subsidiary Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest Assets of VIE's Variable Interest Entity, Consolidated, Carrying Amount, Assets Liabilities of VIE's Variable Interest Entity, Consolidated, Carrying Amount, Liabilities Fair value of long-term debt Long-term Debt, Fair Value Restricted cash Restricted Cash and Cash Equivalents Description of Lessor Leasing Arrangements, Operating Leases Description of Lessor Leasing Arrangements, Operating Leases Deferred revenue Deferred Revenue Recognition of Deferred Revenue Recognition of Deferred Revenue Revenue, remaining performance obligation Revenue, Remaining Performance Obligation, Amount Revenue, current portion of remaining performance obligation Revenue, current portion of remaining performance obligation Revenue, current portion of remaining performance obligation Debt Debt and Capital Lease Obligations Discontinued Operations [Abstract] Discontinued Operations [Abstract] Discontinued Operations Disposal Groups, Including Discontinued Operations [Table Text Block] Fair Value Disclosures [Abstract] Determination of when transfers between fair value levels occurs Fair Value Transfer, Policy [Policy Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative [Table] Derivative [Table] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Not designated as hedging instrument Not Designated as Hedging Instrument [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Primary underlying risk: Derivative Contract [Domain] Commodity contracts Commodity Contract [Member] Commodity contracts not considered probable of settlement [Member] Commodity contracts not considered probable of settlement [Member] Commodity contracts not considered probable of settlement Investment Segment Investment Segment [Member] Investment Segment [Member] Derivative [Line Items] Derivative [Line Items] Fair value derivative instruments with credit risk related contingent features in a liability position Credit Risk Derivative Liabilities, at Fair Value Volume of derivatives (barrels) Derivative, Nonmonetary Notional Amount, Volume Discontinued Operations Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent event Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Distribution declared per LP unit Distribution Made to Limited Partner, Distributions Declared, Per Unit Potential aggregate sales proceeds from equity offering Potential aggregate sales proceeds from equity offering Potential aggregate sales proceeds from equity offering Commitments and Contingencies Disclosure [Abstract] Loss Contingencies [Table] Loss Contingencies [Table] Accrued expenses and other liabilities Accrued Expenses and Other Liabilities [Member] Accrued Expenses and Other Liabilities [Member] Icahn Enterprises G.P. Icahn Enterprises G.P. [Member] Icahn Enterprises G.P. [Member] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] ACF ACF [Member] ACF [Member] Starfire Holding Corporation Starfire Holding Corporation [Member] Starfire Holding Corporation [Member] 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] Mr. Icahn and affiliates Principal Owners and Affiliates [Member] Mr. Icahn and certain other entities beneficially owned by Mr. Icahn Loss Contingencies [Line Items] Loss Contingencies [Line Items] Accrued environmental liabilities Accrual for Environmental Loss Contingencies RINs costs (benefit) Cost of RINs Expenses incurred to purchase additional rewnewable identification numbers Affiliate ownership in parent company general partner Affiliate ownership in parent company general partner Affiliate ownership in parent company general partner Affiliate ownership interest Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest Defined benefit plan underfunded amount Defined Benefit Plan, Funded (Unfunded) Status of Plan Ownership percentage by Mr. Icahn Ownership Percentage by Principal Owner Ownership percentage by principal owner in related party Pension funding indemnity agreement with subsidiary 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 Statement of Financial Position [Abstract] Statement [Table] Statement [Table] Statement [Line Items] Statement [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 Investments Investments Due from brokers Due from Correspondent Brokers Accounts receivable, net Accounts Receivable, Net Inventories, net Inventory, Net Property, plant and equipment, net Property, Plant and Equipment, Net Goodwill Goodwill Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Assets held for sale Disposal Group, Including Discontinued Operation, Assets Other assets Other Assets Total Assets Assets LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Accounts payable Accounts Payable Accrued expenses and other liabilities Accrued Liabilities Deferred tax liability Deferred Tax Liabilities, Net Unrealized loss on derivative contracts Derivative Liability Securities sold, not yet purchased, at fair value Financial Instruments Sold, Not yet Purchased, at Fair Value Due to brokers Due to Correspondent Brokers Liabilities held for sale Disposal Group, Including Discontinued Operation, Liabilities Total liabilities Liabilities Commitments and contingencies (Note 17) Commitments and Contingencies Equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Limited partners: Depositary units: 191,376,753 units issued and outstanding at March 31, 2019 and 191,366,097 units issued and outstanding at December 31, 2018 Limited Partners' Capital Account General partner General Partners' Capital Account 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 Notional exposure of derivative instruments Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] Fair value and income recognized for derivatives not designated as hedging instruments Derivatives Not Designated as Hedging Instruments [Table Text Block] Income Statement [Abstract] Revenues: Revenues [Abstract] Net sales Net sales Net sales Other revenues from operations Other operating revenue Other operating revenue Net (loss) gain from investment activities Gain (Loss) on Investments, Excluding Other than Temporary Impairments Interest and dividend income Interest and Dividend Income, Operating Other income, net Other Nonoperating Income (Expense) Total Revenues Revenues Expenses: Costs and Expenses [Abstract] Cost of goods sold Cost of goods sold (new) Cost of goods sold Other expenses from operations Other Cost and Expense, Operating Selling, general and administrative Selling, General and Administrative Expense Restructuring, net Restructuring Charges Interest expense Interest Expense Total Expenses Costs and Expenses (Loss) income from continuing operations before income tax expense Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income tax expense Income Tax Expense (Benefit) (Loss) income from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Income from discontinued operations Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Net (loss) income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Less: net (loss) income attributable to non-controlling interests Net Income (Loss) Attributable to Noncontrolling Interest Net (loss) income attributable to Icahn Enterprises Net Income (Loss) Attributable to Parent Net (loss) income attributable to Icahn Enterprises allocated to: Net Income (Loss) Attributable to Parent [Abstract] Net (loss) income attributable to Icahn Enterprises from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Income from discontinued operations attributable to Icahn Enterprises Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Limited partners Net Income (Loss) Allocated to Limited Partners General partner Net Income (Loss) Allocated to General Partners Basic income (loss) per LP unit Net Income (Loss), Per Outstanding Limited Partnership Unit, Basic, Net of Tax [Abstract] Basic income from continuing operations per LP unit Income (Loss) from Continuing Operations, Per Outstanding Limited Partnership Unit, Basic, Net of Tax Basic income from discontinued operations per LP unit Income (Loss) from Discontinued Operations, Net of Tax, Per Outstanding Limited Partnership Unit, Basic Basic income (loss) 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 (loss) per LP unit Earnings Per Share, Diluted [Abstract] Diluted income from continuing operations per LP unit Income (Loss) from Continuing Operations, Net of Tax, Per Outstanding Limited Partnership Unit, Diluted Diluted income from discontinued operations per LP unit Income (Loss) from Discontinued Operations, Net of Tax, Per Outstanding Limited Partnership Unit, Diluted Diluted income (loss) 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 Segment Reporting [Abstract] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Disaggregation of revenue Disaggregation of Revenue [Table Text Block] Condensed statements of operations by reporting segment Condensed Income Statement [Table Text Block] Condensed balance sheets by reporting segment Condensed Balance Sheet [Table Text Block] Description of Business [Abstract] Description of Business [Abstract] Description of Business Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Schedule of Condensed Financial Statements [Table] Condensed Financial Statements [Table] Metals Segment Metals Segment [Member] Metals Segment [Member] Home Fashion Segment Home Fashion Segment [Member] Home Fashion Segment [Member] Mining Segment Mining segment [Member] Mining Segment [Member] Railcar Segment Railcar Segment [Member] Railcar Segment [Member] Holding Company Holding Company [Member] Holding Company [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Total Revenues Total Expenses Income (loss) from continuing operations before income tax benefit (expense) (Loss) income from continuing operations Less: net income (loss) attributable to non-controlling interests Income (Loss) from Continuing Operations, Net of Tax, Attributable to Noncontrolling Interest Supplemental information: Supplemental Income Statement Elements [Abstract] Capital expenditures Payments to Acquire Property, Plant, and Equipment Depreciation and amortization Depreciation, Depletion and Amortization Leases [Abstract] Lessee right-of-use assets and liabilities [Table Text Block] Lessee right-of-use assets and liabilities [Table Text Block] Lessee right-of-use assets and liabilities [Table Text Block] Operating lease terms and discount rates [Table Text Block] Operating lease terms and discount rates [Table Text Block] Operating lease terms and discount rates [Table Text Block] Lease, Cost [Table Text Block] Lease, Cost [Table Text Block] Lessee operating and financing lease liability maturities [Table Text Block] Lessee operating and financing lease liability maturities [Table Text Block] Lessee operating and financing lease liability maturities [Table Text Block] Subsequent Events Subsequent Events [Text Block] Inventory, Net [Abstract] 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 Other (Loss) Income, Net [Abstract] Other (Loss) Income, Net [Abstract] Other income (loss), net 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] Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Goodwill [Line Items] Goodwill [Line Items] Goodwill, Acquired During Period Goodwill, Acquired During Period Gross carrying amount of goodwill Goodwill, Gross Accumulated impairment of goodwill Goodwill, Impaired, Accumulated Impairment Loss Net carrying amount of goodwill Condensed Financial Statements, Captions [Line Items] Condensed Financial Statements, Captions [Line Items] 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 Accounts payable, accrued expenses and other liabilities Accounts Payable and Accrued Liabilities Total liabilities Equity attributable to Icahn Enterprises Total equity Total liabilities and equity Schedule of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Variable interest entities Schedule of Variable Interest Entities [Table Text Block] Components of Other Income (Loss), Net [Table] Component of Other Income (Loss), Ne [Table] Component of Other Income (Loss), Net [Table] Component of Other (Loss) Income, Net [Axis] Component of Other Income (Loss), Net [Axis] Component of Other Income (Loss), net [Axis] Component of Other (Loss) Income, Net, Name [Domain] Component of Other Income (Loss), Net Name [Domain] Component of Other Income (Loss), Net Name [Domain] Equity earnings from non-consolidated affiliates Income (loss) from non-consolidated affiliates [Member] Income (loss) from non-consolidated affiliates [Member] (Loss) gain on disposition of assets, net (Loss) gain on disposition of assets [Member] (Loss) gain on disposition of assets [Member] Foreign currency transaction (loss) income Foreign Currency Gain (Loss) [Member] Non-service pension and other post-retirement benefits expense Non service pension and other post-retirement benefits expense [Member] Non service pension and other post-retirement benefits expense Other Other Income (Loss) Not Specified [Member] Other Income (Loss) not otherwise specified in the disclosure [Member] Component of Other Income (Loss), Net [Line Items] Component of Other Income (Loss), Net [Line Items] Component of Other Income (Loss), Net [Line Items] Leases Lessee, Operating Leases [Text Block] Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments Schedule of Long-term Debt Instruments [Table Text Block] Other Income, Net Other Income and Other Expense Disclosure [Text Block] Supplemental Cash Flow Information Cash Flow, Supplemental Disclosures [Text Block] AOCI, Post-employment benefits, net of tax Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after 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 Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after 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, translation adjustments and other, before reclassificaitons, net of tax Other comprehensive income, before reclassifications to income, net of tax Other comprehensive income, before reclassifications to income Other comprehensive income, before reclassifications to income Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after 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 Reclassificaion of translation adjustments and other in AOCI into earnings, net of tax Other comprehensive income, portion representing reclassificaitons to earnings, net of tax Other comprehensive income, portion representing reclassificaitons to earnings Other comprehensive income, portion representing reclassificaitons to earnings Post-retirement benefits Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after 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 loss Other Comprehensive Income (Loss), Net of Tax Elimination of stranded tax effects resulting from tax legislation, Defined benefit plan Elimination of stranded tax effects resulting from tax legislation, Defined benefit plan Elimination of stranded tax effects resulting from tax legislation, Defined benefit plan Elimination of stranded tax effects resulting from tax legislation Elimination of stranded tax effects resulting from tax legislation Elimination of stranded tax effects resulting from tax legislation Elimination of stranded tax effects resulting from tax legislation, translation adjustments and other Elimination of stranded tax effects resulting from tax legislation, translation adjustments and other Elimination of stranded tax effects resulting from tax legislation, translation adjustments and other Earnings Per Unit [Abstract] Net Income Per LP Unit Earnings Per Share [Text Block] Consolidation, Policy Consolidation, Policy [Policy Text Block] Accounting Changes [Text Block] Accounting Changes [Text Block] Reclassifications [Text Block] Reclassifications [Text Block] Consolidation, Variable Interest Entity, Policy [Policy Text Block] Consolidation, Variable Interest Entity, Policy [Policy Text Block] Fair Value of Financial Instruments, Policy Fair Value of Financial Instruments, Policy [Policy Text Block] Statement of cash flow, policy [Policy Text Block] Statement of cash flow, policy [Policy Text Block] Statement of cash flow, 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] Lessee, Leases [Policy Text Block] Lessee, Leases [Policy Text Block] Lessor, Leases [Policy Text Block] Lessor, Leases [Policy Text Block] New Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Description of New Accounting Pronouncements Not yet Adopted Description of New Accounting Pronouncements Not yet Adopted [Text Block] 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 Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Equity contracts Equity Contract [Member] Credit contracts Credit Risk Contract [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, Gross Derivative Asset, Fair Value, Gross Asset Liability Derivatives, Gross Derivative Liability, Fair Value, Gross Liability Netting across contract types Derivative, Fair Value, Amount Offset Against Collateral, Net Derivative contracts, at fair value (asset) Derivative Asset Derivative contracts at fair value (liability) Collateral for derivative positions Collateral Already Posted, Aggregate Fair Value Lessee, Lease, Description [Table] Lessee, Lease, Description [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] Assets leased to others Assets Leased to Others [Member] Other Segments and Holding Company Other Segments and Holding Company [Member] Other Segments and Holding Company [Member] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Lessee, Operating Lease, Term of Contract Lessee, Operating Lease, Term of Contract Operating lease weighted average discount rate (percent) Operating Lease, Weighted Average Discount Rate, Percent Operating lease expense Operating Lease, Expense Amortization of financing lease right-of-use assets Finance Lease, Right-of-Use Asset, Amortization Interest expense on financing lease liabilities Finance Lease, Interest Expense Operating lease rental revenue Operating Leases, Income Statement, Lease Revenue Operating lease minimum lease payments to be received in remainder of 2019 Lessor, Operating Lease, Payments to be Received, Remainder of Fiscal Year Operating lease minimum lease payments to be received in 2020 Lessor, Operating Lease, Payments to be Received, Two Years Operating lease minimum lease payments to be received after 2020 Lessor, operating leases, payments to be received, after year two Amount of lease payments to be received by lessor after second fiscal year following latest statement of financial position date for operating lease. Segment Reporting Segment Reporting Disclosure [Text Block] Credit Default Swap [Member] Credit Default Swap [Member] Volume of derivatives (barrels) 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 Short notional amount of credit default swap positions Derivative, Notional Amount Schedule of Investments [Abstract] Schedule of Investments [Table] Schedule of Investments [Table] Investment, Name [Axis] Investment, Name [Axis] Investment, Name [Domain] Investment, Name [Domain] Hertz Hertz [Member] Hertz Herbalife Herbalife [Member] Herbalife [Member] Caesars Caesars [Member] Caesars [Member] Investment Sector [Axis] Investment Sector [Axis] Investment Sector [Domain] Investment Sector [Domain] Basic materials Basic Materials [Member] Basic Materials [Member] Consumer, non-cyclical Consumer, non-cyclical [Member] Consumer, non-cyclical [Member] Consumer, cyclical Consumer, cyclical [Member] Consumer, cyclical [Member] Energy Energy sector [Member] Energy sector [Member] Financial Financial [Member] Financial [Member] Technology Technology [Member] Technology [Member] Other Other [Member] Other Investment Type [Axis] Investment Type [Axis] Investments [Domain] Investments [Domain] Equity securities: Equity Securities [Member] Corporate debt securities Debt Securities [Member] Schedule of Investments [Line Items] Schedule of Investments [Line Items] Unrealized gain on debt and equity securities still held Debt and Equity Securities, Unrealized Gain (Loss) Ownership percentage in investment measured at fair value that would otherwise be accounted for under equity method Equity Method Investment, Ownership Percentage Unrealized gain (loss) on equity method investments under fair value option Unrealized gain on equity method investments under fair value option Unrealized gain (loss) on equity method investments under fair value option Fair value of equity method investment under fair value option Fair Value of Equity Method Investment Under Fair Value Option Fair Value of Equity Method Investment Under Fair Value Option Inventories, net Schedule of Inventory, Current [Table Text Block] Related Party Transactions [Abstract] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] 767 Leasing 767 Leasing [Member] 767 Leasing [Member] Consolidated VIE Consolidated VIE [Member] Consolidated VIE Hertz (equity method investee) Equity Method Investee [Member] Insight Portfolio Group LLC Insight Portfolio Group LLC [Member] Insight Portfolio Group LLC [Member] Related Party Transactions, by Transaction Type [Axis] Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] Investment in funds Investment in funds [Member] Investment in funds [Member] Expense sharing arrangement Expense Sharing Agreement [Member] Expense Sharing Agreement [Member] Receipts and revenue from related party 7600 Services, Miscellaneous Repair Services [Member] Payments to and purchases from related party Purchases from related party [Member] Purchases from related party Buying group operating expenses Operating Expense [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Amount of transaction with related party Related Party Transaction, Amounts of Transaction Related party transaction, balance Related party transaction, balance Related party transaction, balance 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 Assets at non-consolidated VIE Variable Interest Entity, Nonconsolidated, assets at VIE Variable Interest Entity, Nonconsolidated, assets at VIE Liabilities at non-consolidated VIE Variable Interest Entity, Nonconsolidated, liabilities at VIE Variable Interest Entity, Nonconsolidated, liabilities at VIE investment in nonconsolidated VIE investment in nonconsolidated VIE investment in nonconsolidated VIE investment in related parties investment in related parties investment in related parties Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Recurring measurement Fair Value, Measurements, Recurring [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Level 3 Fair Value, Inputs, Level 3 [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 Investments measured at fair value Investments measured at fair value Assets, Fair Value Disclosure Assets, Fair Value Disclosure Liabilities [Abstract] Liabilities [Abstract] Other liabilities Other Liabilities, Fair Value Disclosure Financial and Nonfinancial Liabilities, Fair Value Disclosure Financial and Nonfinancial Liabilities, Fair Value Disclosure Investments Investment [Table Text Block] Income tax (benefit) expense Effective income tax rate Effective Income Tax Rate Reconciliation, Percent Statutory federal income tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Basis of Presentation and Summary of Significant Accounting Policies Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Description of Business [Table] Description of Business [Table] Description of Business Investment Funds 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. CVR Refining CVR Refining, LP [Member] CVR Refining, LP [Member] CVR Energy CVR Energy, Inc. [Member] CVR Energy, Inc. [Member] Ferrous Resources Ferrous Resources [Member] Ferrous Resources [Member] Viskase Viskase [Member] Viskase [Member] ARL [Member] ARL [Member] ARL [Member] Description of Business [Line Items] Description of Business [Line Items] [Line Items] for Description of Business General partner ownership percentage in Icahn Enterprises 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 Fair value of interest in 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. Contribution to subsidiary Contribution to subsidiary Contribution to subsidiary Proceeds from subsidiary rights offering Proceeds From Rights Offering Proceeds From Rights Offering (Loss) gain on disposition of assets, net Gain (Loss) on Disposition of Assets Payments to acquire additional interest in subsidiaries Payments to Acquire Additional Interest in Subsidiaries Aggregate consideration for business to be disposed of Aggregate consideration for business to be disposed of Aggregate consideration for business to be disposed of aggregate consideration for business disposed of aggregate consideration for business disposed of aggregate consideration for business disposed of Assets measured at fair value on a recurring basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Assets measured at fair value on a recurring basis for which we use Level 3 inputs to determine fair value Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Statement of Comprehensive Income [Abstract] 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] Net (loss) income Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Hedge instruments Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Other comprehensive income, net of tax Comprehensive (loss) income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Less: Comprehensive (loss) income attributable to non-controlling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive (loss) income attributable to Icahn Enterprises Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive (loss) income attributable to Icahn Enterprises allocated to: Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Revenue from contracts with customers [Abstract] Revenue from contracts with customers [Abstract] Contract with Customer, Sales Channel [Axis] Contract with Customer, Sales Channel [Axis] Contract with Customer, Sales Channel [Domain] Contract with Customer, Sales Channel [Domain] Petroleum products Petroleum Products [Member] Nitrogen fertilizer products Nitrogen fertilizer products [Member] Nitrogen fertilizer products [Member] Automotive services Automotive services revenue [Member] Automotive services revenue Aftermarket parts sales Parts net sales [Member] Parts net sales [Member] Revenue from contracts with customers Revenue from Contract with Customer, Excluding Assessed Tax 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] Anti-dilutive shares excluded from weighted average shares calculation Anti-dilutive shares excluded from weighted average shares calculation Anti-dilutive shares excluded from weighted average shares calculation Weighted Average Number Diluted Shares Outstanding Adjustment Weighted Average Number Diluted Shares Outstanding Adjustment Distribution payable Distrubtion payable to LP unit holders Distrubtion payable to LP unit holders LP units distributed Distribution Made to Limited Partner, Unit Distribution Aggregate cash distributions to depositary unitholders Aggregate cash distributions to depositary unitholders Aggregate cash distributions to depositary unitholders Restricted units vested during period (number of units) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Net income per LP unit Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Investments and Related Matters [Abstract] Investments and Related Matters [Abstract] Equity method investments Equity Method Investments [Member] Other investments (measured at fair value) Other Investments [Member] Unrealized gains (losses) that relate to equity securities still held Equity Securities, FV-NI, Unrealized Gain (Loss) Net gain from investment activities Net Gain from Investment Activities [Member] Net Gain from Investment Activities [Member] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Gain (loss) on derivatives not designated as hedging instruments recognized in income Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Related Party Transactions Related Party Transactions 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 (loss) income to net cash used in operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Income from discontinued operations 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 Deferred taxes Increase (Decrease) in Deferred Income Taxes Other, net Other Operating Activities, Cash Flow Statement Changes in operating assets and liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Net cash used in operating activities from continuing operations Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash provided by operating activities from discontinued operations Cash Provided by (Used in) Operating Activities, Discontinued Operations Net cash used in 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 Acquisition of businesses, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Purchases of investments Payments to Acquire Investments Proceeds from sale of investments Proceeds from Sale, Maturity and Collection of Investments Other, net Payments for (Proceeds from) Other Investing Activities Net cash provided by (used in) investing activities from continuing operations Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash used in investing activities from discontinued operations Cash Provided by (Used in) Investing Activities, Discontinued Operations Net cash provided by (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 from non-controlling interests Proceeds from Investment segment contributions Proceeds from Investment segment contributions Proceeds from offering of subsidiary equity Proceeds from subsidiary equity issuance Proceeds from subsidiary equity issuance Purchase of additional interests in consolidated subsidiaries Dividends and distributions to non-controlling interests in subsidiaries Payments to Noncontrolling Interests Proceeds from subsidiary borrowings Proceeds from Other Debt Repayments of subsidiary borrowings Repayments of Debt and Capital Lease Obligations Other, net Proceeds from (Payments for) Other Financing Activities Net cash (used in) provided by financing activities from continuing operations Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net cash used in financing activities from discontinued operations Cash Provided by (Used in) Financing Activities, Discontinued Operations Net cash (used in) provided by financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash and cash equivalents and restricted cash and restricted cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents Add back change in cash and restricted cash of assets held for sale Net Change in Cash of Assets Held for Sale Net Change in Cash of Assets Held for Sale Net (decrease) increase in 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 Cash and cash equivalents and restricted cash and restricted cash equivalents, beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents and restricted cash and restricted cash equivalents, end of period Goodwill and Intangible Assets, Net Goodwill and Intangible Assets Disclosure [Text Block] 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] 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 Trading Symbol Trading Symbol 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 Emerging Growth Company Entity Emerging Growth Company Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Small Business Entity Small Business Entity Current Reporting Status Entity Current Reporting Status Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Group Name [Domain] Disposal Group Name [Domain] Federal-Mogul Federal-Mogul [Member] Federal-Mogul [Member] Tropicana Tropicana [Member] Tropicana [Member] ARI American Railcar Industries [Member] American Railcar Industries [Member] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Discontinued operations, held for sale or disposed of by sale Discontinued Operations, Held-for-sale or Disposed of by Sale [Member] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Net sales Disposal group, including discontinued operation, net sales Disposal group, including discontinued operation, net sales Other revenues from operations Disposal group, including discontinued operation, other revenues from operations Disposal group, including discontinued operation, other revenues from operations Net gain on investment activities Disposal group, including discontinued operation, net gains on investment activities Disposal group, including discontinued operation, net gains on investment activities Interest and dividend income Disposal Group, Including Discontinued Operation, Interest Income Other (loss) income, net Disposal Group, Including Discontinued Operation, Other Income (Loss) Amount of other income (loss) attributable to disposal group, including, but not limited to, discontinued operation. Revenue Disposal Group, Including Discontinued Operation, Revenue Cost of goods sold Disposal Group, Including Discontinued Operation, Costs of Goods Sold Other expenses from operations Disposal group, including discontinued operations, other expenses from operations Disposal group, including discontinued operations, other expenses from operations Selling, general and administrative Disposal Group, Including Discontinued Operation, General and Administrative Expense Interest expense Disposal Group, Including Discontinued Operation, Interest Expense Expenses Disposal group, including discontinued operation, costs and expenses Disposal group, including discontinued operation, costs and expenses Income from discontinued operations before income tax expense Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Income tax expense Discontinued Operation, Tax Effect of Discontinued Operation Income from discontinued operations Less: income from discontinued operations attributable to non-controlling interests Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Noncontrolling Interest Income from discontinued operations attributable to Icahn Enterprises Capital expenditures Capital Expenditure, Discontinued Operations Depreciation and amortization Depreciation and Amortization, Discontinued Operations Derivative Financial Instruments Financial Instruments Disclosure [Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 6.000% senior unsecured notes due 2020 2020 Notes [Member] 2020 Notes [Member] 5.875% senior unsecured notes due 2022 2022 Notes [Member] 2022 Notes [Member] 6.250% senior unsecured notes due 2022 New 2022 Notes [Member] New 2022 Notes 6.750% senior unsecured notes due 2024 2024 Notes [Member] 2024 Notes 6.375% senior unsecured notes due 2025 2025 Notes [Member] 2025 Notes Reporting Segments Reporting Segments [Member] Reporting Segments Debt Instrument [Line Items] Debt Instrument [Line Items] Amortization included in interest expense Amortization of Debt Issuance Costs and Discounts Goodwill Schedule of Goodwill [Table Text Block] Intangible assets, net 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] Debt Debt Disclosure [Text Block] Investments and Related Matters Investments and Other Noncurrent Assets [Text Block] Statement of Partners' Capital [Abstract] Total Partners' Equity Parent [Member] Non-controlling Interests Noncontrolling Interest [Member] Increase (Decrease) in Equity Increase (Decrease) in Partners' Capital [Roll Forward] Equity Net loss Partnership distributions Partners' Capital Account, Distributions Investment segment contributions Investment segment contributions Investment segment contributions Dividends and distributions to non-controlling interests in subsidiaries Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Cumulative effect adjustment from adoption of accounting principle Cumulative Effect on Retained Earnings, Net of Tax Changes in subsidiary equity and other Stockholders' Equity, Other Equity 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] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Definite-lived intangible assets Finite-Lived Intangible Assets, Major Class Name [Domain] Customer relationships Customer Relationships [Member] Other Unclassified Indefinite-lived Intangible Assets [Member] 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] Gross carrying amount of definite-lived intangible assets Finite-Lived Intangible Assets, Gross Accumulated amortization of definite-lived intangible assets Finite-Lived Intangible Assets, Accumulated Amortization Net carrying amount of definite-lived intangible assets Finite-Lived Intangible Assets, Net Amortization of Intangible Assets Amortization of Intangible Assets Finite-lived Intangible Assets Acquired Finite-lived Intangible Assets Acquired Net carrying amount of indefinite-lived intangible assets Indefinite-lived Intangible Assets (Excluding Goodwill) Determination of what constitutes a segment Segment Reporting, Policy [Policy Text Block] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Fair Value Measurements Fair Value Disclosures [Text Block] Operating Lease Liabilities, Payments Due [Abstract] Operating Lease Liabilities, Payments Due [Abstract] Remainder of 2019 Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year 2020 Lessee, Operating Lease, Liability, Payments, Due Year Two 2021 Lessee, Operating Lease, Liability, Payments, Due Year Three 2022 Lessee, Operating Lease, Liability, Payments, Due Year Four 2023 Lessee, Operating Lease, Liability, Payments, Due Year Five Thereafter Lessee, Operating Lease, Liability, Payments, Due after Year Five Total lease payments Lessee, Operating Lease, Liability, Payments, Due Less: imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Finance Lease Liabilities, Payments, Due [Abstract] Finance Lease Liabilities, Payments, Due [Abstract] Remainder of 2019 Finance Lease, Liability, Payments, Remainder of Fiscal Year 2020 Finance Lease, Liability, Payments, Due Year Two 2021 Finance Lease, Liability, Payments, Due Year Three 2022 Finance Lease, Liability, Payments, Due Year Four 2023 Finance Lease, Liability, Payments, Due Year Five Thereafter Finance Lease, Liability, Payments, Due after Year Five Total lease payments Finance Lease, Liability, Payments, Due Less: imputed interest Finance Lease, Liability, Undiscounted Excess Amount Inventories, Net Inventory Disclosure [Text Block] Cash payments for interest, net of amounts capitalized Interest Paid, Excluding Capitalized Interest, Operating Activities Net cash (receipts) payments for income taxes, net of refunds Income Taxes Paid, Net Non-cash proceeds from sale of investment Non-cash proceeds from sale of investment Non-cash proceeds from sale of investment Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] 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] Fair value of assets measured at fair value on a recurring basis Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales