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Quarterly Financial Data (Unaudited) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	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	Dec. 31, 2013	Dec. 31, 2012
Quarterly Financial Data (Unaudited) [Abstract]
Net sales	$ 3,982us-gaap_SalesRevenueGoodsNet		$ 4,557us-gaap_SalesRevenueGoodsNet		$ 4,867us-gaap_SalesRevenueGoodsNet		$ 4,666us-gaap_SalesRevenueGoodsNet		$ 4,533us-gaap_SalesRevenueGoodsNet		$ 4,181us-gaap_SalesRevenueGoodsNet		$ 4,497us-gaap_SalesRevenueGoodsNet		$ 4,574us-gaap_SalesRevenueGoodsNet		$ 18,072us-gaap_SalesRevenueGoodsNet	$ 17,785us-gaap_SalesRevenueGoodsNet	$ 14,574us-gaap_SalesRevenueGoodsNet
Gross Profit	184us-gaap_GrossProfit		339us-gaap_GrossProfit		540us-gaap_GrossProfit		524us-gaap_GrossProfit		329us-gaap_GrossProfit		356us-gaap_GrossProfit		610us-gaap_GrossProfit		681us-gaap_GrossProfit
Revenues	3,366us-gaap_Revenues		4,422us-gaap_Revenues		6,379us-gaap_Revenues		4,990us-gaap_Revenues		4,872us-gaap_Revenues		5,771us-gaap_Revenues		4,670us-gaap_Revenues		5,369us-gaap_Revenues		19,157us-gaap_Revenues	20,682us-gaap_Revenues	15,796us-gaap_Revenues
Net (loss) income	(1,102)us-gaap_ProfitLoss		(627)us-gaap_ProfitLoss		1,123us-gaap_ProfitLoss		77us-gaap_ProfitLoss		405us-gaap_ProfitLoss		1,236us-gaap_ProfitLoss		93us-gaap_ProfitLoss		710us-gaap_ProfitLoss		(529)us-gaap_ProfitLoss	2,444us-gaap_ProfitLoss	762us-gaap_ProfitLoss
Less: net loss (income) attributable to non-controlling interests	624us-gaap_NetIncomeLossAttributableToNoncontrollingInterest		272us-gaap_NetIncomeLossAttributableToNoncontrollingInterest		(634)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest		(106)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest		(183)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest		(764)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest		(39)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest		(433)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest		156us-gaap_NetIncomeLossAttributableToNoncontrollingInterest	(1,419)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest	(366)us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
Net (loss) income attributable to Icahn Enterprises	$ (478)us-gaap_NetIncomeLoss		$ (355)us-gaap_NetIncomeLoss		$ 489us-gaap_NetIncomeLoss		$ (29)us-gaap_NetIncomeLoss		$ 222us-gaap_NetIncomeLoss		$ 472us-gaap_NetIncomeLoss		$ 54us-gaap_NetIncomeLoss		$ 277us-gaap_NetIncomeLoss		$ (373)us-gaap_NetIncomeLoss	$ 1,025us-gaap_NetIncomeLoss	$ 396us-gaap_NetIncomeLoss
Basic (loss) income per LP unit	$ (3.84)us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	[1]	$ (2.90)us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	[1]	$ 4.06us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	[1]	$ (0.24)us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	[1]	$ 1.91us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	[1]	$ 4.13us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	[1]	$ 0.48us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	[1]	$ 2.56us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	[1]	$ (3.08)us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	$ 9.14us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax	$ 3.72us-gaap_NetIncomeLossPerOutstandingLimitedPartnershipUnitBasicNetOfTax
Diluted (loss) income per LP unit	$ (3.84)us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	[1]	$ (2.90)us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	[1]	$ 4.06us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	[1]	$ (0.24)us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	[1]	$ 1.90us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	[1]	$ 4.10us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	[1]	$ 0.48us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	[1]	$ 2.50us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	[1]	$ (3.08)us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	$ 9.07us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted	$ 3.72us-gaap_NetIncomeLossNetOfTaxPerOutstandingLimitedPartnershipUnitDiluted
[1] Basic and diluted (loss) income per LP unit is computed separately for each quarter and therefore, the sum of such quarterly per LP unit amounts may differ from the total for the year.

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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