XML 120 R107.htm IDEA: XBRL DOCUMENT v2.4.1.9
Schedule I Condensed Financial Information of Parent - Debt Note (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Debt 11,588us-gaap_DebtAndCapitalLeaseObligations 9,295us-gaap_DebtAndCapitalLeaseObligations
Icahn Enterprises Holdings [Member]    
Debt 11,588us-gaap_DebtAndCapitalLeaseObligations
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
9,289us-gaap_DebtAndCapitalLeaseObligations
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
Parent Company [Member]    
Debt 5,486us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
4,016us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
Parent Company [Member] | Icahn Enterprises Holdings [Member]    
Affiliate ownership interest 99.00%us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
 
Debt 5,517us-gaap_DebtAndCapitalLeaseObligations
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
4,050us-gaap_DebtAndCapitalLeaseObligations
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
5.875% senior unsecured notes due 2022 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member]    
Debt 1,337us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2022NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2022NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
5.875% senior unsecured notes due 2022 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member] | Icahn Enterprises Holdings [Member]    
Debt 1,337us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2022NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2022NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
5.875% senior unsecured notes due 2022 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member] | Parent Company [Member]    
Debt 1,337us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2022NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2022NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
5.875% senior unsecured notes due 2022 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member] | Parent Company [Member] | Icahn Enterprises Holdings [Member]    
Debt 1,337us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2022NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2022NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
8% senior unsecured notes due 2018 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member]    
Debt 0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2018NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
2,473us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2018NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
8% senior unsecured notes due 2018 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member] | Icahn Enterprises Holdings [Member]    
Debt 0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2018NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
2,470us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2018NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
8% senior unsecured notes due 2018 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member] | Parent Company [Member]    
Debt 0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2018NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
2,473us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2018NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
8% senior unsecured notes due 2018 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member] | Parent Company [Member] | Icahn Enterprises Holdings [Member]    
Debt 0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2018NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
2,468us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2018NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
3.50% senior unsecured notes due 2017 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member]    
Debt 1,171us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2017NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2017NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
3.50% senior unsecured notes due 2017 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member] | Icahn Enterprises Holdings [Member]    
Debt 1,171us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2017NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2017NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
3.50% senior unsecured notes due 2017 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member] | Parent Company [Member]    
Debt 1,171us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2017NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2017NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
3.50% senior unsecured notes due 2017 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member] | Parent Company [Member] | Icahn Enterprises Holdings [Member]    
Debt 1,171us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2017NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2017NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
7.75% senior unsecured notes due 2016 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member]    
Debt 0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2016NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
1,050us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2016NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
7.75% senior unsecured notes due 2016 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member] | Icahn Enterprises Holdings [Member]    
Debt 0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2016NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
1,047us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2016NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
7.75% senior unsecured notes due 2016 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member] | Parent Company [Member]    
Debt 0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2016NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
1,050us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2016NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
7.75% senior unsecured notes due 2016 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member] | Parent Company [Member] | Icahn Enterprises Holdings [Member]    
Debt 0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2016NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
1,048us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2016NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
6% senior unsecured notes due 2020 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member]    
Debt 1,708us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2020NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
493us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2020NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
6% senior unsecured notes due 2020 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member] | Icahn Enterprises Holdings [Member]    
Debt 1,708us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2020NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
493us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2020NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
6% senior unsecured notes due 2020 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member] | Parent Company [Member]    
Debt 1,708us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2020NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
493us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2020NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
6% senior unsecured notes due 2020 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member] | Parent Company [Member] | Icahn Enterprises Holdings [Member]    
Debt 1,708us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2020NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
493us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2020NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
4.875% senior unsecured notes due 2019 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member]    
Debt 1,270us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2019NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2019NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
4.875% senior unsecured notes due 2019 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member] | Icahn Enterprises Holdings [Member]    
Debt 1,270us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2019NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2019NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
4.875% senior unsecured notes due 2019 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member] | Parent Company [Member]    
Debt 1,270us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2019NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2019NotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
4.875% senior unsecured notes due 2019 - Icahn Enterprises/Icahn Enterprises Holdings | Senior unsecured notes [Member] | Parent Company [Member] | Icahn Enterprises Holdings [Member]    
Debt 1,270us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2019NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
0us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= iep_A2019NotesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorDebtObligationsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
Mortgages payable [Member] | Mortgages [Member] | Parent Company [Member] | Icahn Enterprises Holdings [Member]    
Debt 31us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= us-gaap_MortgagesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
41us-gaap_DebtAndCapitalLeaseObligations
/ us-gaap_DebtInstrumentAxis
= us-gaap_MortgagesMember
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_MortgagesMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
Icahn Enterprises G.P. [Member]    
General partner ownership percentage in Icahn Enterprises 1.00%us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest
/ iep_MembersOrPartnersAxis
= iep_IcahnEnterprisesGPMember
1.00%us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest
/ iep_MembersOrPartnersAxis
= iep_IcahnEnterprisesGPMember
Aggregate general partner ownership interest of parent and operating subsidiary 1.99%iep_LimitedLiabilityCompanyLlcOrLimitedPartnershipLpManagingMemberOrGeneralPartnerAggregateOwnershipInterestOfParentAndHoldingCompanySubsidiaries
/ iep_MembersOrPartnersAxis
= iep_IcahnEnterprisesGPMember
 
Icahn Enterprises G.P. [Member] | Parent Company [Member]    
General partner ownership percentage in Icahn Enterprises 1.00%us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest
/ iep_MembersOrPartnersAxis
= iep_IcahnEnterprisesGPMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
 
Aggregate general partner ownership interest of parent and operating subsidiary 1.99%iep_LimitedLiabilityCompanyLlcOrLimitedPartnershipLpManagingMemberOrGeneralPartnerAggregateOwnershipInterestOfParentAndHoldingCompanySubsidiaries
/ iep_MembersOrPartnersAxis
= iep_IcahnEnterprisesGPMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember
 
Icahn Enterprises G.P. [Member] | Parent Company [Member] | Icahn Enterprises Holdings [Member]    
General partner ownership percentage in Icahn Enterprises 1.00%us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest
/ dei_LegalEntityAxis
= iep_IcahnEnterprisesHoldingsMember
/ iep_MembersOrPartnersAxis
= iep_IcahnEnterprisesGPMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ParentCompanyMember