Consolidated Statements of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenues:
Net sales	$ 18,072us-gaap_SalesRevenueGoodsNet	$ 17,785us-gaap_SalesRevenueGoodsNet	$ 14,574us-gaap_SalesRevenueGoodsNet
Other revenues from operations	1,250us-gaap_OtherSalesRevenueNet	988us-gaap_OtherSalesRevenueNet	951us-gaap_OtherSalesRevenueNet
Net (loss) gain from investment activities	(564)	1,694	343
Interest and dividend income	217	194	103
Other income (loss), net	182us-gaap_OtherNonoperatingIncomeExpense	21us-gaap_OtherNonoperatingIncomeExpense	(175)us-gaap_OtherNonoperatingIncomeExpense
Total Revenues	19,157us-gaap_Revenues	20,682us-gaap_Revenues	15,796us-gaap_Revenues
Expenses:
Cost of goods sold	16,485us-gaap_CostOfGoodsSold	15,809us-gaap_CostOfGoodsSold	12,606us-gaap_CostOfGoodsSold
Other expenses from operations	613us-gaap_OtherCostAndExpenseOperating	504us-gaap_OtherCostAndExpenseOperating	502us-gaap_OtherCostAndExpenseOperating
Selling, general and administrative	1,625	1,417	1,275
Restructuring	84us-gaap_RestructuringCharges	50us-gaap_RestructuringCharges	31us-gaap_RestructuringCharges
Impairment	135us-gaap_AssetImpairmentCharges	16us-gaap_AssetImpairmentCharges	129us-gaap_AssetImpairmentCharges
Interest expense	847us-gaap_InterestExpense	560us-gaap_InterestExpense	572us-gaap_InterestExpense
Total Expenses	19,789iep_TotalExpenses	18,356iep_TotalExpenses	15,115iep_TotalExpenses
(Loss) income before income tax benefit	(632)	2,326	681
Income tax benefit	103us-gaap_IncomeTaxExpenseBenefit	118us-gaap_IncomeTaxExpenseBenefit	81us-gaap_IncomeTaxExpenseBenefit
Net (loss) income	(529)us-gaap_ProfitLoss	2,444us-gaap_ProfitLoss	762us-gaap_ProfitLoss
Less: net loss (income) attributable to non-controlling interests	156	(1,419)	(366)
Net (loss) income attributable to Icahn Enterprises	(373)us-gaap_NetIncomeLoss	1,025us-gaap_NetIncomeLoss	396us-gaap_NetIncomeLoss
Net (loss) income attributable to Icahn Enterprises allocable to:
Limited partners	(366)	1,005	379
General partner	(7)	20	17
Net (loss) income attributable to Icahn Enterprises	(373)us-gaap_NetIncomeLoss	1,025us-gaap_NetIncomeLoss	396us-gaap_NetIncomeLoss
Basic (loss) income per LP unit	$ (3.08)	$ 9.14	$ 3.72
Basic weighted average LP units outstanding	119	110	102
Diluted (loss) income per LP unit	$ (3.08)	$ 9.07	$ 3.72
Diluted weighted average LP units outstanding	119	111	102
Cash distributions declared per LP unit	$ 6.00	$ 4.50	$ 0.40
Icahn Enterprises Holdings [Member]
Revenues:
Net sales	18,072	17,785	14,574
Other revenues from operations	1,250	988	951
Net (loss) gain from investment activities	(564)	1,694	343
Interest and dividend income	217	194	103
Other income (loss), net	182	21	(175)
Total Revenues	19,157	20,682	15,796
Expenses:
Cost of goods sold	16,485	15,809	12,606
Other expenses from operations	613	504	502
Selling, general and administrative	1,625	1,417	1,275
Restructuring	84	50	31
Impairment	135	16	129
Interest expense	846	560	571
Total Expenses	19,788	18,356	15,114
(Loss) income before income tax benefit	(631)	2,326	682
Income tax benefit	103	118	81
Net (loss) income	(528)	2,444	763
Less: net loss (income) attributable to non-controlling interests	156	(1,419)	(366)
Net (loss) income attributable to Icahn Enterprises	(372)	1,025	397
Net (loss) income attributable to Icahn Enterprises allocable to:
Limited partners	(368)	1,015	384
General partner	(4)	10	13
Net (loss) income attributable to Icahn Enterprises	$ (372)	$ 1,025	$ 397

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