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v2.4.1.9

Segment Reporting, Balance Sheets (Details) (USD $) In Millions, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | --- | --- | ---
ASSETS |  |  |  |
Cash and cash equivalents | $ 2,912 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 3,262 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 3,108 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 2,328 us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash held at consolidated affiliated partnerships and restricted cash | 1,435 us-gaap_RestrictedCashAndCashEquivalents | 396 us-gaap_RestrictedCashAndCashEquivalents |  |
Investments | 14,500 us-gaap_Investments | 12,261 us-gaap_Investments |  |
Accounts receivable, net | 1,691 us-gaap_AccountsReceivableNet | 1,750 us-gaap_AccountsReceivableNet |  |
Inventories, net | 1,879 us-gaap_InventoryNet | 1,902 us-gaap_InventoryNet |  |
Property, plant and equipment, net | 8,955 us-gaap_PropertyPlantAndEquipmentNet | 8,077 us-gaap_PropertyPlantAndEquipmentNet |  |
Goodwill and intangible assets, net | 3,088 us-gaap_IntangibleAssetsNetIncludingGoodwill | 3,187 us-gaap_IntangibleAssetsNetIncludingGoodwill |  |
Other assets | 1,320 iep_OtherAssetsAndDueFromCorrespondentBrokers | 910 iep_OtherAssetsAndDueFromCorrespondentBrokers |  |
Total Assets | 35,780 us-gaap_Assets | 31,745 us-gaap_Assets |  |
LIABILITIES AND EQUITY |  |  |  |
Accounts payable, accrued expenses and other liabilities | 4,877 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent | 4,943 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent |  |
Securities sold, not yet purchased, at fair value | 337 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue | 884 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue |  |
Due to brokers | 5,197 us-gaap_DueToCorrespondentBrokers | 2,203 us-gaap_DueToCorrespondentBrokers |  |
Post-employment benefit liability | 1,391 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent | 1,111 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent |  |
Debt | 11,588 us-gaap_DebtAndCapitalLeaseObligations | 9,295 us-gaap_DebtAndCapitalLeaseObligations |  |
Total liabilities | 23,390 us-gaap_Liabilities | 18,436 us-gaap_Liabilities |  |
Equity attributable to Icahn Enterprises | 5,443 us-gaap_StockholdersEquity | 6,092 us-gaap_StockholdersEquity |  |
Equity attributable to non-controlling interests | 6,947 us-gaap_MinorityInterest | 7,217 us-gaap_MinorityInterest |  |
Total equity | 12,390 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 13,309 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 9,816 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | 7,871 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
Total Liabilities and Equity | 35,780 us-gaap_LiabilitiesAndStockholdersEquity | 31,745 us-gaap_LiabilitiesAndStockholdersEquity |  |
Investment Segment [Member] |  |  |  |
ASSETS |  |  |  |
Cash and cash equivalents | 2 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 3 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
Cash held at consolidated affiliated partnerships and restricted cash | 1,366 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 321 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
Investments | 13,961 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 11,826 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
Accounts receivable, net | 0 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 0 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
Inventories, net | 0 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 0 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
Property, plant and equipment, net | 0 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 0 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
Goodwill and intangible assets, net | 0 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 0 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
Other assets | 131 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 47 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
Total Assets | 15,460 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 12,197 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
LIABILITIES AND EQUITY |  |  |  |
Accounts payable, accrued expenses and other liabilities | 864 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 757 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
Securities sold, not yet purchased, at fair value | 337 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 884 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
Due to brokers | 5,197 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 2,203 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
Post-employment benefit liability | 0 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 0 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
Debt | 0 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 0 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
Total liabilities | 6,398 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 3,844 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
Equity attributable to Icahn Enterprises | 4,284 us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 3,696 us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
Equity attributable to non-controlling interests | 4,778 us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 4,657 us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
Total equity | 9,062 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 8,353 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
Total Liabilities and Equity | 15,460 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 12,197 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
Automotive Segment [Member] |  |  |  |
ASSETS |  |  |  |
Cash and cash equivalents | 332 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 761 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
Cash held at consolidated affiliated partnerships and restricted cash | 0 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 0 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
Investments | 269 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 253 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
Accounts receivable, net | 1,356 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 1,297 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
Inventories, net | 1,215 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 1,068 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
Property, plant and equipment, net | 2,160 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 2,038 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
Goodwill and intangible assets, net | 1,744 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 1,715 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
Other assets | 453 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 413 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
Total Assets | 7,529 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 7,545 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
LIABILITIES AND EQUITY |  |  |  |
Accounts payable, accrued expenses and other liabilities | 1,933 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 1,763 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
Securities sold, not yet purchased, at fair value | 0 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 0 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
Due to brokers | 0 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 0 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
Post-employment benefit liability | 1,328 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 1,072 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
Debt | 2,690 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 2,586 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
Total liabilities | 5,951 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 5,421 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
Equity attributable to Icahn Enterprises | 1,231 us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 1,660 us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
Equity attributable to non-controlling interests | 347 us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 464 us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
Total equity | 1,578 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 2,124 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
Total Liabilities and Equity | 7,529 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 7,545 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
Energy Segment [Member] |  |  |  |
ASSETS |  |  |  |
Cash and cash equivalents | 754 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 842 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
Cash held at consolidated affiliated partnerships and restricted cash | 0 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 0 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
Investments | 77 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 0 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
Accounts receivable, net | 137 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 242 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
Inventories, net | 330 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 527 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
Property, plant and equipment, net | 2,692 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 2,684 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
Goodwill and intangible assets, net | 1,184 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 1,307 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
Other assets | 160 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 146 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
Total Assets | 5,334 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 5,748 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
LIABILITIES AND EQUITY |  |  |  |
Accounts payable, accrued expenses and other liabilities | 1,471 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 1,550 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
Securities sold, not yet purchased, at fair value | 0 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 0 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
Due to brokers | 0 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 0 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
Post-employment benefit liability | 0 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 0 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
Debt | 675 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 676 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
Total liabilities | 2,146 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 2,226 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
Equity attributable to Icahn Enterprises | 1,612 us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 1,926 us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
Equity attributable to non-controlling interests | 1,576 us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 1,596 us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
Total equity | 3,188 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 3,522 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
Total Liabilities and Equity | 5,334 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 5,748 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
Gaming Segment [Member] |  |  |  |
ASSETS |  |  |  |
Cash and cash equivalents | 196 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 359 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
Cash held at consolidated affiliated partnerships and restricted cash | 16 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 31 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
Investments | 33 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 34 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
Accounts receivable, net | 9 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 10 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
Inventories, net | 0 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 0 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
Property, plant and equipment, net | 719 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 444 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
Goodwill and intangible assets, net | 75 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 67 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
Other assets | 212 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 51 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
Total Assets | 1,260 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 996 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
LIABILITIES AND EQUITY |  |  |  |
Accounts payable, accrued expenses and other liabilities | 130 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 132 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
Securities sold, not yet purchased, at fair value | 0 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 0 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
Due to brokers | 0 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 0 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
Post-employment benefit liability | 0 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 0 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
Debt | 295 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 298 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
Total liabilities | 425 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 430 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
Equity attributable to Icahn Enterprises | 578 us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 392 us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
Equity attributable to non-controlling interests | 257 us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 174 us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
Total equity | 835 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 566 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
Total Liabilities and Equity | 1,260 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 996 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
Railcar Segment [Member] |  |  |  |
ASSETS |  |  |  |
Cash and cash equivalents | 412 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 417 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
Cash held at consolidated affiliated partnerships and restricted cash | 35 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 27 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
Investments | 29 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 31 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
Accounts receivable, net | 41 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 34 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
Inventories, net | 117 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 90 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
Property, plant and equipment, net | 2,376 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 1,889 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
Goodwill and intangible assets, net | 7 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 7 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
Other assets | 103 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 52 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
Total Assets | 3,120 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 2,547 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
LIABILITIES AND EQUITY |  |  |  |
Accounts payable, accrued expenses and other liabilities | 294 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 204 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
Securities sold, not yet purchased, at fair value | 0 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 0 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
Due to brokers | 0 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 0 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
Post-employment benefit liability | 9 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 5 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
Debt | 2,133 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 1,448 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
Total liabilities | 2,436 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 1,657 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
Equity attributable to Icahn Enterprises | 711 us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 591 us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
Equity attributable to non-controlling interests | (27)us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 299 us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
Total equity | 684 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 890 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
Total Liabilities and Equity | 3,120 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 2,547 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
Food Packaging Segment [Member] |  |  |  |
ASSETS |  |  |  |
Cash and cash equivalents | 39 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 19 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
Cash held at consolidated affiliated partnerships and restricted cash | 1 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 1 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
Investments | 0 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 0 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
Accounts receivable, net | 63 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 67 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
Inventories, net | 77 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 72 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
Property, plant and equipment, net | 154 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 156 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
Goodwill and intangible assets, net | 9 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 11 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
Other assets | 93 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 79 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
Total Assets | 436 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 405 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
LIABILITIES AND EQUITY |  |  |  |
Accounts payable, accrued expenses and other liabilities | 64 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 80 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
Securities sold, not yet purchased, at fair value | 0 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 0 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
Due to brokers | 0 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 0 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
Post-employment benefit liability | 52 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 33 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
Debt | 274 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 217 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
Total liabilities | 390 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 330 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
Equity attributable to Icahn Enterprises | 30 us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 55 us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
Equity attributable to non-controlling interests | 16 us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 20 us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
Total equity | 46 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 75 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
Total Liabilities and Equity | 436 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 405 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
Metals Segment [Member] |  |  |  |
ASSETS |  |  |  |
Cash and cash equivalents | 19 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 31 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
Cash held at consolidated affiliated partnerships and restricted cash | 4 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 4 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
Investments | 0 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 0 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
Accounts receivable, net | 51 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 62 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
Inventories, net | 67 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 85 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
Property, plant and equipment, net | 144 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 129 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
Goodwill and intangible assets, net | 8 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 9 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
Other assets | 22 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 14 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
Total Assets | 315 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 334 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
LIABILITIES AND EQUITY |  |  |  |
Accounts payable, accrued expenses and other liabilities | 60 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 57 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
Securities sold, not yet purchased, at fair value | 0 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 0 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
Due to brokers | 0 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 0 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
Post-employment benefit liability | 2 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 1 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
Debt | 3 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 3 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
Total liabilities | 65 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 61 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
Equity attributable to Icahn Enterprises | 250 us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 273 us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
Equity attributable to non-controlling interests | 0 us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 0 us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
Total equity | 250 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 273 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
Total Liabilities and Equity | 315 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 334 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
Real Estate Segment [Member] |  |  |  |
ASSETS |  |  |  |
Cash and cash equivalents | 24 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 32 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Cash held at consolidated affiliated partnerships and restricted cash | 2 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 3 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Investments | 0 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 0 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Accounts receivable, net | 4 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 3 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Inventories, net | 0 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 0 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Property, plant and equipment, net | 633 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 656 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Goodwill and intangible assets, net | 58 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 68 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Other assets | 24 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 18 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Total Assets | 745 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 780 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
LIABILITIES AND EQUITY |  |  |  |
Accounts payable, accrued expenses and other liabilities | 20 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 18 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Securities sold, not yet purchased, at fair value | 0 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 0 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Due to brokers | 0 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 0 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Post-employment benefit liability | 0 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 0 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Debt | 32 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 51 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Total liabilities | 52 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 69 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Equity attributable to Icahn Enterprises | 693 us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 711 us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Equity attributable to non-controlling interests | 0 us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 0 us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Total equity | 693 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 711 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Total Liabilities and Equity | 745 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 780 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Home Fashion Segment [Member] |  |  |  |
ASSETS |  |  |  |
Cash and cash equivalents | 11 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 16 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
Cash held at consolidated affiliated partnerships and restricted cash | 8 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 6 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
Investments | 0 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 0 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
Accounts receivable, net | 30 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 35 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
Inventories, net | 73 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 60 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
Property, plant and equipment, net | 74 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 78 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
Goodwill and intangible assets, net | 3 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 3 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
Other assets | 9 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 24 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
Total Assets | 208 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 222 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
LIABILITIES AND EQUITY |  |  |  |
Accounts payable, accrued expenses and other liabilities | 28 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 31 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
Securities sold, not yet purchased, at fair value | 0 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 0 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
Due to brokers | 0 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 0 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
Post-employment benefit liability | 0 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 0 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
Debt | 0 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 0 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
Total liabilities | 28 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 31 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
Equity attributable to Icahn Enterprises | 180 us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 191 us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
Equity attributable to non-controlling interests | 0 us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 0 us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
Total equity | 180 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 191 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
Total Liabilities and Equity | 208 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 222 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
Holding Company [Member] |  |  |  |
ASSETS |  |  |  |
Cash and cash equivalents | 1,123 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | 782 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |
Cash held at consolidated affiliated partnerships and restricted cash | 3 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | 3 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |
Investments | 131 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | 117 us-gaap_Investments / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |
Accounts receivable, net | 0 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | 0 us-gaap_AccountsReceivableNet / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |
Inventories, net | 0 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | 0 us-gaap_InventoryNet / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |
Property, plant and equipment, net | 3 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | 3 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |
Goodwill and intangible assets, net | 0 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | 0 us-gaap_IntangibleAssetsNetIncludingGoodwill / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |
Other assets | 113 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | 66 iep_OtherAssetsAndDueFromCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |
Total Assets | 1,373 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | 971 us-gaap_Assets / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |
LIABILITIES AND EQUITY |  |  |  |
Accounts payable, accrued expenses and other liabilities | 13 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | 351 us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |
Securities sold, not yet purchased, at fair value | 0 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | 0 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |
Due to brokers | 0 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | 0 us-gaap_DueToCorrespondentBrokers / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |
Post-employment benefit liability | 0 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | 0 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |
Debt | 5,486 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | 4,016 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |
Total liabilities | 5,499 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | 4,367 us-gaap_Liabilities / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |
Equity attributable to Icahn Enterprises | (4,126)us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | (3,403)us-gaap_StockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |
Equity attributable to non-controlling interests | 0 us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | 7 us-gaap_MinorityInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |
Total equity | (4,126)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | (3,396)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |
Total Liabilities and Equity | 1,373 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | 971 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |
Holding Company [Member] |  |  |  |
ASSETS |  |  |  |
Cash and cash equivalents | 2,912 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 3,262 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 3,108 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 2,328 us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember
Cash held at consolidated affiliated partnerships and restricted cash | 1,435 us-gaap_RestrictedCashAndCashEquivalents / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 396 us-gaap_RestrictedCashAndCashEquivalents / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  |
Investments | 14,500 us-gaap_Investments / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 12,261 us-gaap_Investments / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  |
Accounts receivable, net | 1,691 us-gaap_AccountsReceivableNet / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 1,750 us-gaap_AccountsReceivableNet / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  |
Inventories, net | 1,879 us-gaap_InventoryNet / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 1,902 us-gaap_InventoryNet / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  |
Property, plant and equipment, net | 8,955 us-gaap_PropertyPlantAndEquipmentNet / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 8,077 us-gaap_PropertyPlantAndEquipmentNet / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  |
Total Assets | 35,803 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 31,761 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  |
LIABILITIES AND EQUITY |  |  |  |
Securities sold, not yet purchased, at fair value | 337 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 884 us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  |
Due to brokers | 5,197 us-gaap_DueToCorrespondentBrokers / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 2,203 us-gaap_DueToCorrespondentBrokers / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  |
Post-employment benefit liability | 1,391 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 1,111 us-gaap_PostemploymentBenefitsLiabilityCurrentAndNoncurrent / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  |
Debt | 11,588 us-gaap_DebtAndCapitalLeaseObligations / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 9,289 us-gaap_DebtAndCapitalLeaseObligations / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  |
Total liabilities | 23,390 us-gaap_Liabilities / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 18,430 us-gaap_Liabilities / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  |
Equity attributable to Icahn Enterprises | 5,466 us-gaap_StockholdersEquity / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 6,114 us-gaap_StockholdersEquity / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  |
Equity attributable to non-controlling interests | 6,947 us-gaap_MinorityInterest / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 7,217 us-gaap_MinorityInterest / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  |
Total equity | 12,413 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 13,331 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 9,838 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 7,892 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember
Total Liabilities and Equity | 35,803 us-gaap_LiabilitiesAndStockholdersEquity / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember | 31,761 us-gaap_LiabilitiesAndStockholdersEquity / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember |  |
Holding Company [Member] | Investment Segment [Member] |  |  |  |
ASSETS |  |  |  |
Total Assets | 15,460 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember | 12,197 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_InvestmentSegmentMember |  |
Holding Company [Member] | Automotive Segment [Member] |  |  |  |
ASSETS |  |  |  |
Total Assets | 7,529 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember | 7,545 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_AutomotiveSegmentMember |  |
Holding Company [Member] | Energy Segment [Member] |  |  |  |
ASSETS |  |  |  |
Total Assets | 5,334 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember | 5,748 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_EnergySegmentMember |  |
Holding Company [Member] | Gaming Segment [Member] |  |  |  |
ASSETS |  |  |  |
Total Assets | 1,260 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember | 996 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_GamingSegmentMember |  |
Holding Company [Member] | Railcar Segment [Member] |  |  |  |
ASSETS |  |  |  |
Total Assets | 3,120 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember | 2,547 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_RailcarSegmentMember |  |
Holding Company [Member] | Food Packaging Segment [Member] |  |  |  |
ASSETS |  |  |  |
Total Assets | 436 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember | 405 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_FoodPackagingSegmentMember |  |
Holding Company [Member] | Metals Segment [Member] |  |  |  |
ASSETS |  |  |  |
Total Assets | 315 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember | 334 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_MetalsSegmentMember |  |
Holding Company [Member] | Real Estate Segment [Member] |  |  |  |
ASSETS |  |  |  |
Total Assets | 745 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember | 780 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_RealEstateSegmentMember |  |
Holding Company [Member] | Home Fashion Segment [Member] |  |  |  |
ASSETS |  |  |  |
Total Assets | 208 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember | 222 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_HomeFashionSegmentMember |  |
Holding Company [Member] | Holding Company [Member] |  |  |  |
ASSETS |  |  |  |
Total Assets | $ 1,396 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember | $ 987 us-gaap_Assets / dei_LegalEntityAxis = iep_IcahnEnterprisesHoldingsMember / us-gaap_StatementBusinessSegmentsAxis = iep_HoldingCompanyMember |  |

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3044-108585 + Details
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