Commitments and Contingencies Commitments and Contingencies (Details) (USD $)	3 Months Ended		6 Months Ended		0 Months Ended	6 Months Ended				1 Months Ended	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended			3 Months Ended		6 Months Ended		3 Months Ended			6 Months Ended			0 Months Ended	6 Months Ended						6 Months Ended		6 Months Ended	12 Months Ended				6 Months Ended	12 Months Ended	6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Aug. 05, 2013 Principal Owners and Affiliates [Member]	Jun. 30, 2013 Principal Owners and Affiliates [Member]	Jun. 30, 2013 ACF [Member]	Dec. 31, 2012 ACF [Member]	Jun. 30, 2013 Starfire Holding Corporation [Member]	Jan. 31, 2013 Gaming Segment [Member]	Jun. 30, 2013 Gaming Segment [Member]	Jun. 30, 2012 Gaming Segment [Member]	Jun. 30, 2013 Gaming Segment [Member]	Jun. 30, 2012 Gaming Segment [Member]	Jun. 30, 2013 Railcar Segment [Member]	Jun. 30, 2012 Railcar Segment [Member]	Jun. 30, 2013 Railcar Segment [Member]	Jun. 30, 2012 Railcar Segment [Member]	Jun. 30, 2013 Metals Segment [Member]	Jun. 30, 2012 Metals Segment [Member]	Jun. 30, 2013 Metals Segment [Member]	Jun. 30, 2012 Metals Segment [Member]	Jun. 30, 2013 Automotive Segment [Member]	Jun. 30, 2012 Automotive Segment [Member]	Jun. 30, 2013 Automotive Segment [Member]	Jun. 30, 2012 Automotive Segment [Member]	Dec. 31, 2012 Automotive Segment [Member]	Jun. 30, 2013 Home Fashion Segment [Member]	Jun. 30, 2012 Home Fashion Segment [Member]	Jun. 30, 2013 Home Fashion Segment [Member]	Jun. 30, 2012 Home Fashion Segment [Member]	Jun. 30, 2013 Energy Segment [Member]	Jun. 30, 2012 Energy Segment [Member]		Jun. 30, 2013 Energy Segment [Member]	Jun. 30, 2012 Energy Segment [Member]		Aug. 12, 2010 Tropicana [Member] Gaming Segment [Member]	Jun. 30, 2013 CRRM [Member] Energy Segment [Member]	Jun. 30, 2013 PSC Metals [Member] Metals Segment [Member]	Dec. 31, 2012 PSC Metals [Member] Metals Segment [Member]	Jun. 30, 2013 WPH [Member] Home Fashion Segment [Member]	Dec. 31, 2012 WPH [Member] Home Fashion Segment [Member]	Jun. 30, 2013 Federal-Mogul [Member]	Jun. 30, 2013 Federal-Mogul [Member] Automotive Segment [Member]	Dec. 31, 2012 Federal-Mogul [Member] Automotive Segment [Member]	Jun. 30, 2013 Icahn Enterprises G.P. [Member] Principal Owners and Affiliates [Member]	Dec. 31, 2011 CRNF [Member] Energy Segment [Member]	Dec. 31, 2010 CRNF [Member] Energy Segment [Member]	Dec. 31, 2009 CRNF [Member] Energy Segment [Member]	Dec. 31, 2008 CRNF [Member] Energy Segment [Member]	Jun. 30, 2013 Cleveland OH Scrap Processing Facility [Member] PSC Metals [Member] Metals Segment [Member]	Dec. 31, 2011 Cleveland OH Scrap Processing Facility [Member] PSC Metals [Member] Metals Segment [Member]	Jun. 30, 2013 Minimum [Member] Cleveland OH Scrap Processing Facility [Member] PSC Metals [Member] Metals Segment [Member]	Jun. 30, 2013 Maximum [Member] Cleveland OH Scrap Processing Facility [Member] PSC Metals [Member] Metals Segment [Member]	Jun. 30, 2013 Tax settlement loss	Jun. 30, 2012 Tax settlement loss	Jun. 30, 2013 Tax settlement loss	Jun. 30, 2012 Tax settlement loss
Loss Contingencies [Line Items]
Accrued environmental liabilities																							$ 14,000,000		$ 14,000,000		$ 15,000,000													$ 29,000,000	$ 29,000,000	$ 1,000,000	$ 1,000,000
Possible material additional losses, above and beyond best estimate of required remediation costs																																													44,000,000
Compensatory damages sought																																						100,000,000
Tax refund as result of Trop AC tax appeal settlement										50,000,000
Other income (loss), net	94,000,000	(1,000,000)	48,000,000	9,000,000							(24,000,000)	(2,000,000)	0	(8,000,000)	(1,000,000)	0	(2,000,000)	0	0	(6,000,000)	0	1,000,000	0	4,000,000	(33,000,000)	13,000,000		1,000,000	1,000,000	1,000,000	2,000,000	119,000,000	(2,000,000)	[1]	105,000,000	(2,000,000)	[1]																			(23,000,000)	0	(23,000,000)	0
Average increase in annual property tax expense																																																11,000,000	12,000,000	11,000,000	11,000,000
Negotiated settlement to resolve Port Refinery environmental matter																																								225,000										11,000,000
Number of scrap processing facilities requiring refrigerant extraction services																																																				11
Number of years refrigerant extraction services must be offered at scrap processing facilities																																																				3 years
Costs associated with required injunctive relief, high estimate																																			20,000,000				59,000,000															800,000	1,700,000
Civil penalty assessed and paid																																																					199,000
Affiliate ownership in parent company general partner																																															100.00%
Affiliate ownership interest					89.40%	89.30%
Defined Benefit Plan, Funded Status of Plan							125,000,000	130,000,000																																				639,000,000
Ownership Percentage by Mr. Icahn									99.40%
Subsidiary Indemnity Agreement, Pension Funding Contingencies As A Result of Being In The Controlled Group, Distribution Limitation, Net Worth Floor									250,000,000
Asset Retirement Obligation																																													$ 29,000,000	$ 29,000,000

[1] Energy segment results are for the period May 5, 2012 through June 30, 2012.