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v2.4.1.9

Segment Reporting, Income Statements (Details) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 reporting_segments | Dec. 31, 2013 | Dec. 31, 2012
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of reportable segments |  |  |  |  |  |  |  |  | 9 us-gaap_NumberOfReportableSegments |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 3,982,000,000 us-gaap_SalesRevenueGoodsNet | $ 4,557,000,000 us-gaap_SalesRevenueGoodsNet | $ 4,867,000,000 us-gaap_SalesRevenueGoodsNet | $ 4,666,000,000 us-gaap_SalesRevenueGoodsNet | $ 4,533,000,000 us-gaap_SalesRevenueGoodsNet | $ 4,181,000,000 us-gaap_SalesRevenueGoodsNet | $ 4,497,000,000 us-gaap_SalesRevenueGoodsNet | $ 4,574,000,000 us-gaap_SalesRevenueGoodsNet | $ 18,072,000,000 us-gaap_SalesRevenueGoodsNet |  | $ 17,785,000,000 us-gaap_SalesRevenueGoodsNet |  | $ 14,574,000,000 us-gaap_SalesRevenueGoodsNet |
Other revenues from operations |  |  |  |  |  |  |  |  | 1,250,000,000 us-gaap_OtherSalesRevenueNet |  | 988,000,000 us-gaap_OtherSalesRevenueNet |  | 951,000,000 us-gaap_OtherSalesRevenueNet |
Net (loss) gain from investment activities |  |  |  |  |  |  |  |  | (564,000,000)us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments |  | 1,694,000,000 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments |  | 343,000,000 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments |
Interest and dividend income |  |  |  |  |  |  |  |  | 217,000,000 us-gaap_InterestAndDividendIncomeOperating |  | 194,000,000 us-gaap_InterestAndDividendIncomeOperating |  | 103,000,000 us-gaap_InterestAndDividendIncomeOperating |
Other (loss) income, net |  |  |  |  |  |  |  |  | 182,000,000 us-gaap_OtherNonoperatingIncomeExpense |  | 21,000,000 us-gaap_OtherNonoperatingIncomeExpense |  | (175,000,000)us-gaap_OtherNonoperatingIncomeExpense |
Total Revenues | 3,366,000,000 us-gaap_Revenues | 4,422,000,000 us-gaap_Revenues | 6,379,000,000 us-gaap_Revenues | 4,990,000,000 us-gaap_Revenues | 4,872,000,000 us-gaap_Revenues | 5,771,000,000 us-gaap_Revenues | 4,670,000,000 us-gaap_Revenues | 5,369,000,000 us-gaap_Revenues | 19,157,000,000 us-gaap_Revenues |  | 20,682,000,000 us-gaap_Revenues |  | 15,796,000,000 us-gaap_Revenues |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of goods sold |  |  |  |  |  |  |  |  | 16,485,000,000 us-gaap_CostOfGoodsSold |  | 15,809,000,000 us-gaap_CostOfGoodsSold |  | 12,606,000,000 us-gaap_CostOfGoodsSold |
Other expenses from operations |  |  |  |  |  |  |  |  | 613,000,000 us-gaap_OtherCostAndExpenseOperating |  | 504,000,000 us-gaap_OtherCostAndExpenseOperating |  | 502,000,000 us-gaap_OtherCostAndExpenseOperating |
Selling, general and administrative |  |  |  |  |  |  |  |  | 1,625,000,000 us-gaap_SellingGeneralAndAdministrativeExpense |  | 1,417,000,000 us-gaap_SellingGeneralAndAdministrativeExpense |  | 1,275,000,000 us-gaap_SellingGeneralAndAdministrativeExpense |
Restructuring |  |  |  |  |  |  |  |  | 84,000,000 us-gaap_RestructuringCharges |  | 50,000,000 us-gaap_RestructuringCharges |  | 31,000,000 us-gaap_RestructuringCharges |
Impairment |  |  |  |  |  |  |  |  | 135,000,000 us-gaap_AssetImpairmentCharges |  | 16,000,000 us-gaap_AssetImpairmentCharges |  | 129,000,000 us-gaap_AssetImpairmentCharges |
Interest expense |  |  |  |  |  |  |  |  | 847,000,000 us-gaap_InterestExpense |  | 560,000,000 us-gaap_InterestExpense |  | 572,000,000 us-gaap_InterestExpense |
Total Expenses |  |  |  |  |  |  |  |  | 19,789,000,000 iep_TotalExpenses |  | 18,356,000,000 iep_TotalExpenses |  | 15,115,000,000 iep_TotalExpenses |
Income before income tax benefit (expense) |  |  |  |  |  |  |  |  | (632,000,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest |  | 2,326,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest |  | 681,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest |
Income tax benefit |  |  |  |  |  |  |  |  | 103,000,000 us-gaap_IncomeTaxExpenseBenefit |  | 118,000,000 us-gaap_IncomeTaxExpenseBenefit |  | 81,000,000 us-gaap_IncomeTaxExpenseBenefit |
Net (loss) income | (1,102,000,000)us-gaap_ProfitLoss | (627,000,000)us-gaap_ProfitLoss | 1,123,000,000 us-gaap_ProfitLoss | 77,000,000 us-gaap_ProfitLoss | 405,000,000 us-gaap_ProfitLoss | 1,236,000,000 us-gaap_ProfitLoss | 93,000,000 us-gaap_ProfitLoss | 710,000,000 us-gaap_ProfitLoss | (529,000,000)us-gaap_ProfitLoss |  | 2,444,000,000 us-gaap_ProfitLoss |  | 762,000,000 us-gaap_ProfitLoss |
Less: net loss (income) attributable to non-controlling interests |  |  |  |  |  |  |  |  | 156,000,000 us-gaap_IncomeLossAttributableToNoncontrollingInterest |  | (1,419,000,000)us-gaap_IncomeLossAttributableToNoncontrollingInterest |  | (366,000,000)us-gaap_IncomeLossAttributableToNoncontrollingInterest |
Net (loss) income attributable to Icahn Enterprises | (478,000,000)us-gaap_NetIncomeLoss | (355,000,000)us-gaap_NetIncomeLoss | 489,000,000 us-gaap_NetIncomeLoss | (29,000,000)us-gaap_NetIncomeLoss | 222,000,000 us-gaap_NetIncomeLoss | 472,000,000 us-gaap_NetIncomeLoss | 54,000,000 us-gaap_NetIncomeLoss | 277,000,000 us-gaap_NetIncomeLoss | (373,000,000)us-gaap_NetIncomeLoss |  | 1,025,000,000 us-gaap_NetIncomeLoss |  | 396,000,000 us-gaap_NetIncomeLoss |
Supplemental information: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  | 1,411,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment |  | 1,161,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment |  | 936,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment |
Depreciation and amortization |  |  |  |  |  |  |  |  | 787,000,000 us-gaap_DepreciationDepletionAndAmortization | [1] | 708,000,000 us-gaap_DepreciationDepletionAndAmortization | [1] | 607,000,000 us-gaap_DepreciationDepletionAndAmortization | [1]
Amortization included in interest expense |  |  |  |  |  |  |  |  | 22,000,000 us-gaap_AmortizationOfFinancingCostsAndDiscounts |  | 34,000,000 us-gaap_AmortizationOfFinancingCostsAndDiscounts |  | 28,000,000 us-gaap_AmortizationOfFinancingCostsAndDiscounts |
Investment Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 0 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 0 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 0 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Other revenues from operations |  |  |  |  |  |  |  |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Net (loss) gain from investment activities |  |  |  |  |  |  |  |  | (421,000,000)us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 1,850,000,000 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 314,000,000 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Interest and dividend income |  |  |  |  |  |  |  |  | 202,000,000 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 178,000,000 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 85,000,000 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Other (loss) income, net |  |  |  |  |  |  |  |  | 1,000,000 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 3,000,000 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | (1,000,000)us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Total Revenues |  |  |  |  |  |  |  |  | (218,000,000)us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 2,031,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 398,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of goods sold |  |  |  |  |  |  |  |  | 0 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 0 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 0 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Other expenses from operations |  |  |  |  |  |  |  |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Selling, general and administrative |  |  |  |  |  |  |  |  | 167,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 119,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 24,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Restructuring |  |  |  |  |  |  |  |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Impairment |  |  |  |  |  |  |  |  | 0 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 0 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 0 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Interest expense |  |  |  |  |  |  |  |  | 299,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 10,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 2,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Total Expenses |  |  |  |  |  |  |  |  | 466,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 129,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 26,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Income before income tax benefit (expense) |  |  |  |  |  |  |  |  | (684,000,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 1,902,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 372,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Income tax benefit |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 0 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 0 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Net (loss) income |  |  |  |  |  |  |  |  | (684,000,000)us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 1,902,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 372,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Less: net loss (income) attributable to non-controlling interests |  |  |  |  |  |  |  |  | 379,000,000 us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | (1,090,000,000)us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | (215,000,000)us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | (305,000,000)us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 812,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 157,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Supplemental information: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Depreciation and amortization |  |  |  |  |  |  |  |  | 0 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | [1] | 0 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | [1] | 0 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | [1]
Automotive Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 7,317,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 6,905,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 6,664,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Other revenues from operations |  |  |  |  |  |  |  |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Net (loss) gain from investment activities |  |  |  |  |  |  |  |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Interest and dividend income |  |  |  |  |  |  |  |  | 5,000,000 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 3,000,000 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 5,000,000 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Other (loss) income, net |  |  |  |  |  |  |  |  | 2,000,000 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | (32,000,000)us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 8,000,000 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Total Revenues |  |  |  |  |  |  |  |  | 7,324,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 6,876,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 6,677,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of goods sold |  |  |  |  |  |  |  |  | 6,260,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 5,885,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 5,753,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Other expenses from operations |  |  |  |  |  |  |  |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Selling, general and administrative |  |  |  |  |  |  |  |  | 825,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 749,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 710,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Restructuring |  |  |  |  |  |  |  |  | 86,000,000 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 40,000,000 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 26,000,000 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Impairment |  |  |  |  |  |  |  |  | 24,000,000 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 8,000,000 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 98,000,000 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Interest expense |  |  |  |  |  |  |  |  | 128,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 111,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 141,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Total Expenses |  |  |  |  |  |  |  |  | 7,323,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 6,793,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 6,728,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Income before income tax benefit (expense) |  |  |  |  |  |  |  |  | 1,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 83,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | (51,000,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Income tax benefit |  |  |  |  |  |  |  |  | 91,000,000 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 180,000,000 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 29,000,000 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Net (loss) income |  |  |  |  |  |  |  |  | (90,000,000)us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 263,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | (22,000,000)us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Less: net loss (income) attributable to non-controlling interests |  |  |  |  |  |  |  |  | 3,000,000 us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | (13,000,000)us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | (2,000,000)us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | (87,000,000)us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 250,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | (24,000,000)us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Supplemental information: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  | 418,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 380,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 387,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Depreciation and amortization |  |  |  |  |  |  |  |  | 335,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | [1] | 296,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | [1] | 289,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | [1]
Energy Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 9,109,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 8,986,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 5,703,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [2]
Other revenues from operations |  |  |  |  |  |  |  |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [2]
Net (loss) gain from investment activities |  |  |  |  |  |  |  |  | (6,000,000)us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [2]
Interest and dividend income |  |  |  |  |  |  |  |  | 3,000,000 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 1,000,000 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 1,000,000 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [2]
Other (loss) income, net |  |  |  |  |  |  |  |  | 186,000,000 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 76,000,000 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | (185,000,000)us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [2]
Total Revenues |  |  |  |  |  |  |  |  | 9,292,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 9,063,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 5,519,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [2]
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of goods sold |  |  |  |  |  |  |  |  | 8,774,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 8,204,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 4,848,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [2]
Other expenses from operations |  |  |  |  |  |  |  |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [2]
Selling, general and administrative |  |  |  |  |  |  |  |  | 136,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 137,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 112,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [2]
Restructuring |  |  |  |  |  |  |  |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [2]
Impairment |  |  |  |  |  |  |  |  | 103,000,000 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 0 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 0 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [2]
Interest expense |  |  |  |  |  |  |  |  | 38,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 48,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 39,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [2]
Total Expenses |  |  |  |  |  |  |  |  | 9,051,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 8,389,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 4,999,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [2]
Income before income tax benefit (expense) |  |  |  |  |  |  |  |  | 241,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 674,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 520,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [2]
Income tax benefit |  |  |  |  |  |  |  |  | 73,000,000 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 195,000,000 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 182,000,000 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [2]
Net (loss) income |  |  |  |  |  |  |  |  | 168,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 479,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 338,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [2]
Less: net loss (income) attributable to non-controlling interests |  |  |  |  |  |  |  |  | (73,000,000)us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | (190,000,000)us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | (75,000,000)us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [2]
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | 95,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 289,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 263,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [2]
Supplemental information: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  | 218,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 256,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 138,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [2]
Depreciation and amortization |  |  |  |  |  |  |  |  | 219,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [1] | 208,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [1] | 128,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | [1],[2]
Gaming Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 0 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 0 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 0 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Other revenues from operations |  |  |  |  |  |  |  |  | 759,000,000 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 575,000,000 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 613,000,000 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Net (loss) gain from investment activities |  |  |  |  |  |  |  |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Interest and dividend income |  |  |  |  |  |  |  |  | 2,000,000 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 1,000,000 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 1,000,000 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Other (loss) income, net |  |  |  |  |  |  |  |  | 88,000,000 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | (5,000,000)us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | (3,000,000)us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Total Revenues |  |  |  |  |  |  |  |  | 849,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 571,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 611,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of goods sold |  |  |  |  |  |  |  |  | 0 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 0 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 0 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Other expenses from operations |  |  |  |  |  |  |  |  | 387,000,000 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 294,000,000 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 312,000,000 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Selling, general and administrative |  |  |  |  |  |  |  |  | 327,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 238,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 250,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Restructuring |  |  |  |  |  |  |  |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Impairment |  |  |  |  |  |  |  |  | 0 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 3,000,000 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 2,000,000 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Interest expense |  |  |  |  |  |  |  |  | 13,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 14,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 13,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Total Expenses |  |  |  |  |  |  |  |  | 727,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 549,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 577,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Income before income tax benefit (expense) |  |  |  |  |  |  |  |  | 122,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 22,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 34,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Income tax benefit |  |  |  |  |  |  |  |  | (147,000,000)us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | (3,000,000)us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | (4,000,000)us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Net (loss) income |  |  |  |  |  |  |  |  | 269,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 19,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 30,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Less: net loss (income) attributable to non-controlling interests |  |  |  |  |  |  |  |  | (84,000,000)us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | (6,000,000)us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | (9,000,000)us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | 185,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 13,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 21,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Supplemental information: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  | 81,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 57,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 44,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Depreciation and amortization |  |  |  |  |  |  |  |  | 50,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | [1] | 34,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | [1] | 32,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | [1]
Railcar Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 379,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 408,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 530,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Other revenues from operations |  |  |  |  |  |  |  |  | 411,000,000 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 331,000,000 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 256,000,000 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Net (loss) gain from investment activities |  |  |  |  |  |  |  |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 2,000,000 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 2,000,000 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Interest and dividend income |  |  |  |  |  |  |  |  | 3,000,000 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 9,000,000 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 11,000,000 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Other (loss) income, net |  |  |  |  |  |  |  |  | 16,000,000 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | (6,000,000)us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 0 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Total Revenues |  |  |  |  |  |  |  |  | 809,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 744,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 799,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of goods sold |  |  |  |  |  |  |  |  | 288,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 326,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 419,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Other expenses from operations |  |  |  |  |  |  |  |  | 175,000,000 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 160,000,000 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 141,000,000 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Selling, general and administrative |  |  |  |  |  |  |  |  | 42,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 39,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 37,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Restructuring |  |  |  |  |  |  |  |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Impairment |  |  |  |  |  |  |  |  | 0 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 0 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 0 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Interest expense |  |  |  |  |  |  |  |  | 60,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 49,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 68,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Total Expenses |  |  |  |  |  |  |  |  | 565,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 574,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 665,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Income before income tax benefit (expense) |  |  |  |  |  |  |  |  | 244,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 170,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 134,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Income tax benefit |  |  |  |  |  |  |  |  | 56,000,000 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | (31,000,000)us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | (42,000,000)us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Net (loss) income |  |  |  |  |  |  |  |  | 188,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 139,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 92,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Less: net loss (income) attributable to non-controlling interests |  |  |  |  |  |  |  |  | (66,000,000)us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | (109,000,000)us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | (63,000,000)us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | 122,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 30,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 29,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Supplemental information: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  | 626,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 424,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 302,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Depreciation and amortization |  |  |  |  |  |  |  |  | 106,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | [1] | 92,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | [1] | 83,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | [1]
Food Packaging Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 365,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 371,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 343,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Other revenues from operations |  |  |  |  |  |  |  |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Net (loss) gain from investment activities |  |  |  |  |  |  |  |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Interest and dividend income |  |  |  |  |  |  |  |  | 0 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 0 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 0 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Other (loss) income, net |  |  |  |  |  |  |  |  | (19,000,000)us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | (25,000,000)us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | (2,000,000)us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Total Revenues |  |  |  |  |  |  |  |  | 346,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 346,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 341,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of goods sold |  |  |  |  |  |  |  |  | 275,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 285,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 263,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Other expenses from operations |  |  |  |  |  |  |  |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Selling, general and administrative |  |  |  |  |  |  |  |  | 45,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 47,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 45,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Restructuring |  |  |  |  |  |  |  |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 1,000,000 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Impairment |  |  |  |  |  |  |  |  | 0 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 0 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 0 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Interest expense |  |  |  |  |  |  |  |  | 14,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 22,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 21,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Total Expenses |  |  |  |  |  |  |  |  | 334,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 354,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 330,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Income before income tax benefit (expense) |  |  |  |  |  |  |  |  | 12,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | (8,000,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 11,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Income tax benefit |  |  |  |  |  |  |  |  | 3,000,000 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 51,000,000 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | (5,000,000)us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Net (loss) income |  |  |  |  |  |  |  |  | 9,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 43,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 6,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Less: net loss (income) attributable to non-controlling interests |  |  |  |  |  |  |  |  | (3,000,000)us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | (11,000,000)us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | (2,000,000)us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | 6,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 32,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 4,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Supplemental information: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  | 23,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 20,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 39,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Depreciation and amortization |  |  |  |  |  |  |  |  | 22,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | [1] | 21,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | [1] | 18,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | [1]
Metals Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 711,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 929,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 1,102,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Other revenues from operations |  |  |  |  |  |  |  |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Net (loss) gain from investment activities |  |  |  |  |  |  |  |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Interest and dividend income |  |  |  |  |  |  |  |  | 0 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 0 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 0 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Other (loss) income, net |  |  |  |  |  |  |  |  | 0 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 0 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 1,000,000 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Total Revenues |  |  |  |  |  |  |  |  | 711,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 929,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 1,103,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of goods sold |  |  |  |  |  |  |  |  | 728,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 948,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 1,116,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Other expenses from operations |  |  |  |  |  |  |  |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Selling, general and administrative |  |  |  |  |  |  |  |  | 23,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 27,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 28,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Restructuring |  |  |  |  |  |  |  |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Impairment |  |  |  |  |  |  |  |  | 3,000,000 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 2,000,000 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 18,000,000 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Interest expense |  |  |  |  |  |  |  |  | 0 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 0 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 0 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Total Expenses |  |  |  |  |  |  |  |  | 754,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 977,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 1,162,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Income before income tax benefit (expense) |  |  |  |  |  |  |  |  | (43,000,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | (48,000,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | (59,000,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Income tax benefit |  |  |  |  |  |  |  |  | (18,000,000)us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 20,000,000 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 1,000,000 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Net (loss) income |  |  |  |  |  |  |  |  | (25,000,000)us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | (28,000,000)us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | (58,000,000)us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Less: net loss (income) attributable to non-controlling interests |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 0 us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 0 us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | (25,000,000)us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | (28,000,000)us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | (58,000,000)us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Supplemental information: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  | 41,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 15,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | 24,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Depreciation and amortization |  |  |  |  |  |  |  |  | 26,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | [1] | 26,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | [1] | 26,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | [1]
Real Estate Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 15,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 2,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 4,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Other revenues from operations |  |  |  |  |  |  |  |  | 80,000,000 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 82,000,000 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 82,000,000 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Net (loss) gain from investment activities |  |  |  |  |  |  |  |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Interest and dividend income |  |  |  |  |  |  |  |  | 0 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 0 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 0 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Other (loss) income, net |  |  |  |  |  |  |  |  | 6,000,000 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 1,000,000 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 2,000,000 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Total Revenues |  |  |  |  |  |  |  |  | 101,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 85,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 88,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of goods sold |  |  |  |  |  |  |  |  | 8,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 0 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 1,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Other expenses from operations |  |  |  |  |  |  |  |  | 51,000,000 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 50,000,000 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 49,000,000 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Selling, general and administrative |  |  |  |  |  |  |  |  | 12,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 12,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 14,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Restructuring |  |  |  |  |  |  |  |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Impairment |  |  |  |  |  |  |  |  | 5,000,000 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 2,000,000 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 0 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Interest expense |  |  |  |  |  |  |  |  | 3,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 4,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 5,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Total Expenses |  |  |  |  |  |  |  |  | 79,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 68,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 69,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Income before income tax benefit (expense) |  |  |  |  |  |  |  |  | 22,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 17,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 19,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Income tax benefit |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 0 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 0 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Net (loss) income |  |  |  |  |  |  |  |  | 22,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 17,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 19,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Less: net loss (income) attributable to non-controlling interests |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 0 us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 0 us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | 22,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 17,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 19,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Supplemental information: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  | 1,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 2,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 2,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Depreciation and amortization |  |  |  |  |  |  |  |  | 22,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | [1] | 23,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | [1] | 23,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | [1]
Home Fashion Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 176,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 184,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 228,000,000 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Other revenues from operations |  |  |  |  |  |  |  |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Net (loss) gain from investment activities |  |  |  |  |  |  |  |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 0 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Interest and dividend income |  |  |  |  |  |  |  |  | 0 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 0 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 0 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Other (loss) income, net |  |  |  |  |  |  |  |  | 5,000,000 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 3,000,000 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 3,000,000 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Total Revenues |  |  |  |  |  |  |  |  | 181,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 187,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 231,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of goods sold |  |  |  |  |  |  |  |  | 152,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 161,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 206,000,000 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Other expenses from operations |  |  |  |  |  |  |  |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Selling, general and administrative |  |  |  |  |  |  |  |  | 29,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 31,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 37,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Restructuring |  |  |  |  |  |  |  |  | (2,000,000)us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 10,000,000 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 4,000,000 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Impairment |  |  |  |  |  |  |  |  | 0 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 1,000,000 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 11,000,000 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Interest expense |  |  |  |  |  |  |  |  | 0 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 0 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 0 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Total Expenses |  |  |  |  |  |  |  |  | 179,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 203,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 258,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Income before income tax benefit (expense) |  |  |  |  |  |  |  |  | 2,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | (16,000,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | (27,000,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Income tax benefit |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 0 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 0 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Net (loss) income |  |  |  |  |  |  |  |  | 2,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | (16,000,000)us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | (27,000,000)us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Less: net loss (income) attributable to non-controlling interests |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 0 us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 0 us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | 2,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | (16,000,000)us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | (27,000,000)us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Supplemental information: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  | 3,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 7,000,000 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Depreciation and amortization |  |  |  |  |  |  |  |  | 7,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | [1] | 8,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | [1] | 8,000,000 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | [1]
Holding Company [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 0 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 0 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 0 us-gaap_SalesRevenueGoodsNet / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Other revenues from operations |  |  |  |  |  |  |  |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 0 us-gaap_OtherSalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Net (loss) gain from investment activities |  |  |  |  |  |  |  |  | (137,000,000)us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | (158,000,000)us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 27,000,000 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Interest and dividend income |  |  |  |  |  |  |  |  | 2,000,000 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 2,000,000 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 0 us-gaap_InterestAndDividendIncomeOperating / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Other (loss) income, net |  |  |  |  |  |  |  |  | (103,000,000)us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 6,000,000 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 2,000,000 us-gaap_OtherNonoperatingIncomeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Total Revenues |  |  |  |  |  |  |  |  | (238,000,000)us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | (150,000,000)us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 29,000,000 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of goods sold |  |  |  |  |  |  |  |  | 0 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 0 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 0 us-gaap_CostOfGoodsSold / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Other expenses from operations |  |  |  |  |  |  |  |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 0 us-gaap_OtherCostAndExpenseOperating / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Selling, general and administrative |  |  |  |  |  |  |  |  | 19,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 18,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 18,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Restructuring |  |  |  |  |  |  |  |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 0 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Impairment |  |  |  |  |  |  |  |  | 0 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 0 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 0 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Interest expense |  |  |  |  |  |  |  |  | 292,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 302,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 283,000,000 us-gaap_InterestExpense / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Total Expenses |  |  |  |  |  |  |  |  | 311,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 320,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 301,000,000 iep_TotalExpenses / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Income before income tax benefit (expense) |  |  |  |  |  |  |  |  | (549,000,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | (470,000,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | (272,000,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Income tax benefit |  |  |  |  |  |  |  |  | (161,000,000)us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 96,000,000 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 284,000,000 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Net (loss) income |  |  |  |  |  |  |  |  | (388,000,000)us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | (374,000,000)us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 12,000,000 us-gaap_ProfitLoss / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Less: net loss (income) attributable to non-controlling interests |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 0 us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 0 us-gaap_IncomeLossAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | (388,000,000)us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | (374,000,000)us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 12,000,000 us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Supplemental information: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital expenditures |  |  |  |  |  |  |  |  | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 0 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Depreciation and amortization |  |  |  |  |  |  |  |  | 0 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | [1] | 0 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | [1] | 0 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | [1]
Icahn Enterprises Holdings [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 18,072,000,000 us-gaap_SalesRevenueGoodsNet / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 17,785,000,000 us-gaap_SalesRevenueGoodsNet / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 14,574,000,000 us-gaap_SalesRevenueGoodsNet / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |
Other revenues from operations |  |  |  |  |  |  |  |  | 1,250,000,000 us-gaap_OtherSalesRevenueNet / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 988,000,000 us-gaap_OtherSalesRevenueNet / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 951,000,000 us-gaap_OtherSalesRevenueNet / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |
Net (loss) gain from investment activities |  |  |  |  |  |  |  |  | (564,000,000)us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 1,694,000,000 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 343,000,000 us-gaap_GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |
Interest and dividend income |  |  |  |  |  |  |  |  | 217,000,000 us-gaap_InterestAndDividendIncomeOperating / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 194,000,000 us-gaap_InterestAndDividendIncomeOperating / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 103,000,000 us-gaap_InterestAndDividendIncomeOperating / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |
Other (loss) income, net |  |  |  |  |  |  |  |  | 182,000,000 us-gaap_OtherNonoperatingIncomeExpense / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 21,000,000 us-gaap_OtherNonoperatingIncomeExpense / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | (175,000,000)us-gaap_OtherNonoperatingIncomeExpense / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |
Total Revenues |  |  |  |  |  |  |  |  | 19,157,000,000 us-gaap_Revenues / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 20,682,000,000 us-gaap_Revenues / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 15,796,000,000 us-gaap_Revenues / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of goods sold |  |  |  |  |  |  |  |  | 16,485,000,000 us-gaap_CostOfGoodsSold / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 15,809,000,000 us-gaap_CostOfGoodsSold / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 12,606,000,000 us-gaap_CostOfGoodsSold / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |
Other expenses from operations |  |  |  |  |  |  |  |  | 613,000,000 us-gaap_OtherCostAndExpenseOperating / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 504,000,000 us-gaap_OtherCostAndExpenseOperating / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 502,000,000 us-gaap_OtherCostAndExpenseOperating / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |
Selling, general and administrative |  |  |  |  |  |  |  |  | 1,625,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 1,417,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 1,275,000,000 us-gaap_SellingGeneralAndAdministrativeExpense / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |
Restructuring |  |  |  |  |  |  |  |  | 84,000,000 us-gaap_RestructuringCharges / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 50,000,000 us-gaap_RestructuringCharges / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 31,000,000 us-gaap_RestructuringCharges / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |
Impairment |  |  |  |  |  |  |  |  | 135,000,000 us-gaap_AssetImpairmentCharges / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 16,000,000 us-gaap_AssetImpairmentCharges / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 129,000,000 us-gaap_AssetImpairmentCharges / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |
Interest expense |  |  |  |  |  |  |  |  | 846,000,000 us-gaap_InterestExpense / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 560,000,000 us-gaap_InterestExpense / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 571,000,000 us-gaap_InterestExpense / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |
Total Expenses |  |  |  |  |  |  |  |  | 19,788,000,000 iep_TotalExpenses / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 18,356,000,000 iep_TotalExpenses / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 15,114,000,000 iep_TotalExpenses / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |
Income before income tax benefit (expense) |  |  |  |  |  |  |  |  | (631,000,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 2,326,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 682,000,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |
Income tax benefit |  |  |  |  |  |  |  |  | 103,000,000 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 118,000,000 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 81,000,000 us-gaap_IncomeTaxExpenseBenefit / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |
Net (loss) income |  |  |  |  |  |  |  |  | (528,000,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 2,444,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 763,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | (372,000,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 1,025,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 397,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |
Supplemental information: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization included in interest expense |  |  |  |  |  |  |  |  | 21,000,000 us-gaap_AmortizationOfFinancingCostsAndDiscounts / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 34,000,000 us-gaap_AmortizationOfFinancingCostsAndDiscounts / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  | 27,000,000 us-gaap_AmortizationOfFinancingCostsAndDiscounts / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |
Icahn Enterprises Holdings [Member] | Investment Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) income |  |  |  |  |  |  |  |  | (684,000,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 1,902,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 372,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | (305,000,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 812,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  | 157,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |
Icahn Enterprises Holdings [Member] | Automotive Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) income |  |  |  |  |  |  |  |  | (90,000,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 263,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | (22,000,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | (87,000,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | 250,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  | (24,000,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |
Icahn Enterprises Holdings [Member] | Energy Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) income |  |  |  |  |  |  |  |  | 168,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 479,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 338,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | 95,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 289,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  | 263,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |
Icahn Enterprises Holdings [Member] | Gaming Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) income |  |  |  |  |  |  |  |  | 269,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 19,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 30,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | 185,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 13,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  | 21,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |
Icahn Enterprises Holdings [Member] | Railcar Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) income |  |  |  |  |  |  |  |  | 188,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 139,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 92,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | 122,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 30,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  | 29,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |
Icahn Enterprises Holdings [Member] | Food Packaging Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) income |  |  |  |  |  |  |  |  | 9,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 43,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 6,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | 6,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 32,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  | 4,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |
Icahn Enterprises Holdings [Member] | Metals Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) income |  |  |  |  |  |  |  |  | (25,000,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | (28,000,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | (58,000,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | (25,000,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | (28,000,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  | (58,000,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |
Icahn Enterprises Holdings [Member] | Real Estate Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) income |  |  |  |  |  |  |  |  | 22,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 17,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 19,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | 22,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 17,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  | 19,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |
Icahn Enterprises Holdings [Member] | Home Fashion Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) income |  |  |  |  |  |  |  |  | 2,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | (16,000,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | (27,000,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | 2,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | (16,000,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  | (27,000,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |
Icahn Enterprises Holdings [Member] | Holding Company [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | 291,000,000 us-gaap_InterestExpense / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 302,000,000 us-gaap_InterestExpense / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 282,000,000 us-gaap_InterestExpense / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Net (loss) income |  |  |  |  |  |  |  |  | (387,000,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | (374,000,000)us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | 13,000,000 us-gaap_ProfitLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
Net (loss) income attributable to Icahn Enterprises |  |  |  |  |  |  |  |  | $ (387,000,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | $ (374,000,000)us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  | $ 13,000,000 us-gaap_NetIncomeLoss / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |
[1] | Excludes amounts related to the amortization of debt discounts and premiums included in interest expense in the amounts of $22 million, $34 million and $28 million for the years ended December 31, 2014, 2013 and 2012, respectively.
[2] | We consolidated CVR effective May 4, 2012.

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- Definition Amount of noncash expense included in interest expense to allocate debt discount and premium, and the costs to issue debt and obtain financing over the related debt instruments. Alternate captions include noncash interest expense. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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