Debt Narrative - Senior Unsecured Notes - Icahn Enterprises (Details) (USD $)	9 Months Ended			0 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended			0 Months Ended		0 Months Ended	9 Months Ended					0 Months Ended		9 Months Ended	0 Months Ended	12 Months Ended			0 Months Ended			0 Months Ended	9 Months Ended	12 Months Ended					9 Months Ended						12 Months Ended									9 Months Ended		12 Months Ended				9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Senior unsecured notes [Member]	Jan. 29, 2014 Senior unsecured notes [Member] 2022 Notes [Member]	Dec. 31, 2013 Senior unsecured notes [Member] 2022 Notes [Member]	Jan. 29, 2014 Senior unsecured notes [Member] 2020 Notes [Member]	Dec. 31, 2013 Senior unsecured notes [Member] 2020 Notes [Member]	Aug. 01, 2013 Senior unsecured notes [Member] 2020 Notes [Member]	Jan. 15, 2010 Senior unsecured notes [Member] 2020 Notes [Member]	Jan. 29, 2014 Senior unsecured notes [Member] Additional 2020 Notes [Member]	Jan. 21, 2014 Senior unsecured notes [Member] Additional 2020 Notes [Member]	Jan. 15, 2010 Senior unsecured notes [Member] Initial Notes [Member]	Sep. 30, 2014 Senior unsecured notes [Member] Initial Notes [Member]	Nov. 12, 2010 Senior unsecured notes [Member] 2016 Additional Notes [Member]	Jan. 15, 2010 Senior unsecured notes [Member] 7.75% senior unsecured notes due 2016 [Member]	Jan. 15, 2010 Senior unsecured notes [Member] 8% senior unsecured notes due 2018 [Member]	Nov. 12, 2010 Senior unsecured notes [Member] 2018 Additional Notes [Member]	Nov. 12, 2010 Senior unsecured notes [Member] 2010 Additional Notes [Member]	Jul. 02, 2012 Senior unsecured notes [Member] 2012 Additional Notes [Member]	Sep. 30, 2013 Senior unsecured notes [Member] Variable Rate Senior Unsecured Convertible Notes [Member]	Jan. 29, 2014 Senior unsecured notes [Member] 2019 Notes [Member]	Dec. 31, 2013 Senior unsecured notes [Member] 2019 Notes [Member]	Jan. 21, 2014 Senior unsecured notes [Member] 2019 Notes [Member]	Jan. 15, 2010 Senior unsecured notes [Member] 2019 Notes [Member]	Jan. 29, 2014 Senior unsecured notes [Member] 2017 Notes [Member]	Jan. 21, 2014 Senior unsecured notes [Member] 2017 Notes [Member]	Jan. 15, 2010 Senior unsecured notes [Member] 2017 Notes [Member]	Jan. 24, 2014 Senior unsecured notes [Member] 2010-2012 Notes [Member]	Sep. 30, 2014 Senior unsecured notes [Member] 2010-2012 Notes [Member]	Dec. 31, 2013 Debt Instrument, Repurchase Date Range, from August 1, 2017 to January 31, 2018 [Member] Senior unsecured notes [Member] 2022 Notes [Member]	Dec. 31, 2013 Debt Instrument, Repurchase Date Range, from February 1, 2018 to January 31, 2019 [Member] Senior unsecured notes [Member] 2022 Notes [Member]	Dec. 31, 2013 Debt Instrument, Repurchase Date Range, from February 1, 2019 to January 31, 2020 [Member] Senior unsecured notes [Member] 2022 Notes [Member]	Dec. 31, 2013 Debt Instrument, Repurchase Date Range, on or after February 1, 2020 [Member] Senior unsecured notes [Member] 2022 Notes [Member]	Dec. 31, 2013 Debt Instrument, Repurchase Date Range, Prior to February 1, 2017 [Member] Senior unsecured notes [Member] 2020 Notes [Member]	Sep. 30, 2014 Debt repurchase date range, from January 15, 2013 to January 14, 2014 [Member] Senior unsecured notes [Member] 7.75% senior unsecured notes due 2016 [Member]	Sep. 30, 2014 Debt repurchase date range, from January 15, 2014 to January 14, 2015 [Member] Senior unsecured notes [Member] 7.75% senior unsecured notes due 2016 [Member]	Sep. 30, 2014 Debt repurchase date range, from January 15, 2014 to January 14, 2015 [Member] Senior unsecured notes [Member] 8% senior unsecured notes due 2018 [Member]	Sep. 30, 2014 Debt repurchase date range, on or after January 15, 2015 [Member] Senior unsecured notes [Member] 7.75% senior unsecured notes due 2016 [Member]	Sep. 30, 2014 Debt repurchase date range, from January 15, 2015 to January 14, 2016 [Member] Senior unsecured notes [Member] 8% senior unsecured notes due 2018 [Member]	Sep. 30, 2014 Debt repurchase date range, on or after January 15, 2016 [Member] Senior unsecured notes [Member] 8% senior unsecured notes due 2018 [Member]	Dec. 31, 2013 Debt Instrument, Repurchase Date Range, from August 1, 2017 to July 31, 2018 [Member] Senior unsecured notes [Member] 2020 Notes [Member]	Dec. 31, 2013 Debt Instrument, Repurchase Date Range, from August 1, 2018 to July 31, 2019 [Member] Senior unsecured notes [Member] 2020 Notes [Member]	Dec. 31, 2013 Debt Instrument, Repurchase Date Range, on or after August 1, 2019 [Member] Senior unsecured notes [Member] 2020 Notes [Member]	Dec. 31, 2013 Debt Instrument, Repurchase Date Range, from July 15, 2016 to January 14, 2017 [Member] Senior unsecured notes [Member] 2019 Notes [Member]	Dec. 31, 2013 Debt Instrument, Repurchase Date Range, from January 15, 2017 to January 14, 2018 [Member] Senior unsecured notes [Member] 2019 Notes [Member]	Dec. 31, 2013 Debt Instrument, Repurchase Date Range, on or after January 31, 2018 [Member] Senior unsecured notes [Member] 2019 Notes [Member]	Dec. 31, 2013 Debt Instrument, Repurchase Date Range, on or after February 15, 2017 [Member] Senior unsecured notes [Member] 2022 Notes [Member]	Dec. 31, 2013 Debt repurchase percentage of principal amount authorized pursuant to additional requirements [Member] Senior unsecured notes [Member] 2022 Notes [Member]	Dec. 31, 2013 Debt repurchase percentage of principal amount authorized pursuant to additional requirements [Member] Senior unsecured notes [Member] 2020 Notes [Member]	Sep. 30, 2014 Debt repurchase percentage of principal amount authorized pursuant to additional requirements [Member] Senior unsecured notes [Member] 7.75% senior unsecured notes due 2016 [Member]	Sep. 30, 2014 Debt repurchase percentage of principal amount authorized pursuant to additional requirements [Member] Senior unsecured notes [Member] 8% senior unsecured notes due 2018 [Member]	Dec. 31, 2013 Debt repurchase percentage of principal amount authorized pursuant to additional requirements [Member] Senior unsecured notes [Member] 2019 Notes [Member]	Dec. 31, 2013 Debt repurchase percentage of principal amount authorized if change of control [Member] Senior unsecured notes [Member] 2022 Notes [Member]	Dec. 31, 2013 Debt repurchase percentage of principal amount authorized if change of control [Member] Senior unsecured notes [Member] 2017 and 2019 Notes [Member]	Dec. 31, 2013 Debt repurchase percentage of principal amount authorized if change of control [Member] Senior unsecured notes [Member] 2020 Notes [Member]	Sep. 30, 2014 Debt repurchase percentage of principal amount authorized if change of control [Member] Senior unsecured notes [Member] Initial Notes [Member]	Sep. 30, 2014 Icahn Enterprises Holdings [Member]	Sep. 30, 2013 Icahn Enterprises Holdings [Member]
Debt Instrument [Line Items]
Term Loan Facility				$ 1,350,000,000				$ 500,000,000			$ 1,200,000,000			$ 200,000,000	$ 850,000,000	$ 1,150,000,000	$ 300,000,000		$ 1,000,000,000				$ 1,275,000,000			$ 1,175,000,000
Interest rate, long-term debt									6.00%	5.875%					7.75%	8.00%								4.875%			3.50%
Proceeds from Issuance of Debt				1,340,000,000		493,000,000				1,217,000,000											1,269,000,000				1,169,000,000
Gross proceeds from sale of senior unsecured notes												1,987,000,000						512,000,000
Redemption percentage of principal amount																														104.406%	102.938%	101.469%	100.00%	104.50%	103.875%	101.938%	104.00%	100.00%	102.00%	100.00%	103.00%	101.50%	100.00%	103.6563%	102.4375%	100.00%	100.00%	105.875%	106.00%	107.75%	108.00%	104.875%	101.00%	101.00%	101.00%	101.00%
Redemption percentage of aggregate principal amount authorized to be redeemed at higher percenatge of principal amount					35.00%		35.00%						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%						65.00%									65.00%
Variable rate notes, distribution amount																				0
Additional indebtedness allowed per debt covenants			1,800,000,000
Use of portion of debt proceeds																												3,500,000,000
Loss (gain) on extinguishment of debt	$ 162,000,000	$ (5,000,000)																											$ (108,000,000)																												$ 162,000,000	$ (5,000,000)