Debt Narrative - Senior Unsecured Notes - Icahn Enterprises (Details) (Senior unsecured notes [Member], USD $)		0 Months Ended	9 Months Ended		0 Months Ended	9 Months Ended					0 Months Ended		0 Months Ended	9 Months Ended			9 Months Ended																	0 Months Ended
	Sep. 30, 2013	Jan. 15, 2010 6% senior unsecured notes due 2020 - Icahn Enterprises/Icahn Enterprises Holdings	Sep. 30, 2013 6% senior unsecured notes due 2020 - Icahn Enterprises/Icahn Enterprises Holdings	Aug. 01, 2013 6% senior unsecured notes due 2020 - Icahn Enterprises/Icahn Enterprises Holdings	Jan. 15, 2010 Initial Notes [Member]	Sep. 30, 2013 Initial Notes [Member]	Nov. 12, 2010 2016 Additional Notes [Member]	Jan. 15, 2010 7.75% senior unsecured notes due 2016 [Member]	Jan. 15, 2010 8% senior unsecured notes due 2018 [Member]	Nov. 12, 2010 2018 Additional Notes [Member]	Nov. 12, 2010 2010 Additional Notes [Member]	Jul. 02, 2012 2012 Additional Notes [Member]	Jan. 25, 2013 Variable Rate Senior Unsecured Convertible Notes [Member]	Sep. 30, 2013 Variable Rate Senior Unsecured Convertible Notes [Member]	Sep. 30, 2012 Variable Rate Senior Unsecured Convertible Notes [Member]	Apr. 30, 2007 Variable Rate Senior Unsecured Convertible Notes [Member]	Sep. 30, 2013 Debt Instrument, Repurchase Date Range, Prior to February 1, 2017 [Member] 6% senior unsecured notes due 2020 - Icahn Enterprises/Icahn Enterprises Holdings	Sep. 30, 2013 Debt Instrument, Repurchase Date Range, from August 1, 2017 to July 31, 2018 [Member] 6% senior unsecured notes due 2020 - Icahn Enterprises/Icahn Enterprises Holdings	Sep. 30, 2013 Debt Instrument, Repurchase Date Range, from August 1, 2018 to July 31, 2019 [Member] 6% senior unsecured notes due 2020 - Icahn Enterprises/Icahn Enterprises Holdings	Sep. 30, 2013 Debt Instrument, Repurchase Date Range, on or after August 1, 2019 [Member] 6% senior unsecured notes due 2020 - Icahn Enterprises/Icahn Enterprises Holdings	Sep. 30, 2013 Debt repurchase date range, from January 15, 2013 to January 14, 2014 [Member] 7.75% senior unsecured notes due 2016 [Member]	Sep. 30, 2013 Debt repurchase date range, from January 15, 2014 to January 14, 2015 [Member] 7.75% senior unsecured notes due 2016 [Member]	Sep. 30, 2013 Debt repurchase date range, from January 15, 2014 to January 14, 2015 [Member] 8% senior unsecured notes due 2018 [Member]	Sep. 30, 2013 Debt repurchase date range, on or after January 15, 2015 [Member] 7.75% senior unsecured notes due 2016 [Member]	Sep. 30, 2013 Debt repurchase date range, from January 15, 2015 to January 14, 2016 [Member] 8% senior unsecured notes due 2018 [Member]	Sep. 30, 2013 Debt repurchase date range, on or after January 15, 2016 [Member] 8% senior unsecured notes due 2018 [Member]	Sep. 30, 2013 Debt repurchase percentage of principal amount authorized pursuant to additional requirements [Member] 6% senior unsecured notes due 2020 - Icahn Enterprises/Icahn Enterprises Holdings	Sep. 30, 2013 Debt repurchase percentage of principal amount authorized pursuant to additional requirements [Member] 7.75% senior unsecured notes due 2016 [Member]	Sep. 30, 2013 Debt repurchase percentage of principal amount authorized pursuant to additional requirements [Member] 8% senior unsecured notes due 2018 [Member]	Sep. 30, 2013 Debt repurchase percentage of principal amount authorized if change of control [Member] 6% senior unsecured notes due 2020 - Icahn Enterprises/Icahn Enterprises Holdings	Sep. 30, 2013 Debt repurchase percentage of principal amount authorized if change of control [Member] Initial Notes [Member]	Apr. 05, 2007 Minimum [Member] Variable Rate Senior Unsecured Convertible Notes [Member]	Apr. 05, 2007 Maximum [Member] Variable Rate Senior Unsecured Convertible Notes [Member]	Jan. 25, 2013 Icahn Enterprises Holdings [Member] Variable Rate Senior Unsecured Convertible Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate														1.25%
Term Loan Facility				$ 500,000,000			$ 200,000,000	$ 850,000,000	$ 1,150,000,000	$ 300,000,000		$ 1,000,000,000				$ 600,000,000
Interest rate, long-term debt		6.00%						7.75%	8.00%
Gross proceeds from sale of senior unsecured notes		493,000,000			1,987,000,000						512,000,000
Redemption percentage of principal amount																	104.50%	103.00%	101.50%	100.00%	103.875%	101.938%	104.00%	100.00%	102.00%	100.00%	106.00%	107.75%	108.00%	101.00%	101.00%
Redemption percentage of aggregate principal amount authorized to be redeemed at higher percenatge of principal amount			35.00%			35.00%
Percentage of aggregate principal amount required to remain outstanding if debt redeemed at higher percenatge of principal amount			65.00%			65.00%
Variable interest rate																																4.00%	5.50%
Variable rate notes, depositary unit, maximum dividends, per share, declared, before matching distribution to variable rate noteholders required														$ 0.10
Variable rate notes, distribution amount														0	0
Repayments of debt													600,000,000																					44,000,000
Additional indebtedness allowed per debt covenants	$ 2,700,000,000