Related Party Transactions (Details) (USD $)	12 Months Ended									0 Months Ended	12 Months Ended					12 Months Ended			0 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Icahn Capital [Member] Investment Funds [Member] Expense Sharing Agreement [Member]	Dec. 31, 2012 Icahn Capital [Member] Investment Funds [Member] Expense Sharing Agreement [Member]	Dec. 31, 2011 Icahn Capital [Member] Investment Funds [Member] Expense Sharing Agreement [Member]	Dec. 06, 2013 Federal-Mogul [Member] Principal Owners and Affiliates [Member]	Aug. 24, 2012 IEP Energy [Member] Principal Owners and Affiliates [Member]	May 07, 2012 IEP Energy [Member] Principal Owners and Affiliates [Member]	Oct. 29, 2004 ARL [Member] Principal Owners and Affiliates [Member]	Dec. 31, 2013 ARL [Member] Principal Owners and Affiliates [Member]	Dec. 31, 2012 ARL [Member] Principal Owners and Affiliates [Member]	Dec. 31, 2011 ARL [Member] Principal Owners and Affiliates [Member]	Oct. 31, 2013 ARL [Member] Principal Owners and Affiliates [Member]	Oct. 24, 2004 ARL [Member] Principal Owners and Affiliates [Member]	Dec. 31, 2013 Investment Funds [Member] Principal Owners and Affiliates [Member]	Dec. 31, 2012 Investment Funds [Member] Principal Owners and Affiliates [Member]	Dec. 31, 2013 AEP Leasing [Member] ACF [Member]	Feb. 28, 2014 Principal Owners and Affiliates [Member]	Dec. 31, 2013 Principal Owners and Affiliates [Member]	May 07, 2012 Principal Owners and Affiliates [Member] IEP Energy [Member]	Dec. 31, 2013 Railcar Sales [Member] ARI [Member] ACF [Member]	Dec. 31, 2013 Railcar Sales [Member] AEP Leasing [Member] ACF [Member]	Dec. 31, 2013 Purchase of railcars [Member] AEP Leasing [Member] ACF [Member]	Dec. 31, 2013 Investment Segment [Member] Koala [Member]
Related Party Transaction [Line Items]
Investment in funds																$ 45,000,000
Non-cash Investment segment contribution (derivative liability shares transferred)																									7,700,000
Non-cash investment segment contribution	185,000,000	0	0																						185,000,000
Investments, fair value																4,700,000,000	3,500,000,000
Percentage fair value of investments in Funds that is attributable to Mr. Icahn																56.00%	60.00%
Expenses charged by related party				113,000,000	23,000,000	21,000,000
Funding Commitment, Total Amount							1,600,000,000
Capital contributions by non-controlling interests in subsidiary (Shares)								3,288,371	4,566,546
Capital contributions by non-controlling interests in subsidiary									137,000,000
Loans and Leases Receivable, Related Parties														171,000,000	165,000,000
Related Party Transaction, Rate										1.75%
Interest Income, Related Party											6,000,000	8,000,000	8,000,000
Affiliate ownership interest in Icahn Enterprises																			88.00%	87.90%	6.40%
Related Party Transaction, Other Revenues from Transactions with Related Party																						12,000,000
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required																								1,050
Unrecorded Unconditional Purchase Obligation																								150,000,000
Option to purchase additinal railcars, number of cars																		500
Option to purchase additional railcars																		70,000,000
Related Party Transaction, Expenses from Transactions with Related Party																							$ 57,000,000