Schedule I Condensed Financial Information of Parent - Statements of Cash Flows (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net income	$ 2,444	$ 762	$ 1,800
Adjustments to reconcile net income to net cash provided by operating activities:
Net gain from securities transactions	(3,754)	(1,488)	(1,927)
Depreciation and amortization	742	635	508
Other, net	73	16	(26)
Net cash used in operating activities	717	1,607	2,082
Proceeds from sale of investments	38	202	154
Other, net	38	23	25
Net cash (used in) provided by investing activities	(1,456)	(2,322)	(607)
Partnership distributions	(51)	(41)	(48)
Partnership contributions	593	513	0
Proceeds from other borrowings	591	1,076	636
Repayments of borrowings	(1,526)	(996)	(745)
Net cash provided by (used in) financing activities	907	1,480	(2,115)
Net change in cash and cash equivalents	154	780	(660)
Cash and cash equivalents	3,262	3,108	2,328
Icahn Enterprises Holdings [Member]
Net income	2,444	763	1,801
Adjustments to reconcile net income to net cash provided by operating activities:
Net gain from securities transactions	(3,754)	(1,488)	(1,927)
Depreciation and amortization	742	634	507
Other, net	73	16	(26)
Net cash used in operating activities	717	1,607	2,082
Proceeds from sale of investments	38	202	154
Other, net	38	23	25
Net cash (used in) provided by investing activities	(1,456)	(2,322)	(607)
Partnership distributions	(51)	(41)	(48)
Partnership contributions	593	513	0
Proceeds from other borrowings	591	1,076	636
Repayments of borrowings	(1,526)	(996)	(745)
Net cash provided by (used in) financing activities	907	1,480	(2,115)
Net change in cash and cash equivalents	154	780	(660)
Cash and cash equivalents	3,262	3,108	2,328
Parent Company [Member]
Net income	1,025	396	750
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of deferred financing costs	2	2	2
Equity in earnings of subsidiary	(1,328)	(680)	(974)
Net cash used in operating activities	(301)	(282)	(222)
Net investment in subsidiaries	(172)	(1,212)	270
Net cash (used in) provided by investing activities	(172)	(1,212)	270
Partnership distributions	(51)	(41)	(48)
Partnership contributions	587	505	0
Proceeds from other borrowings	493	1,030	0
Repayments of borrowings	(556)	0	0
Net cash provided by (used in) financing activities	473	1,494	(48)
Net change in cash and cash equivalents	0	0	0
Cash and cash equivalents	0	0	0
Parent Company [Member] | Icahn Enterprises Holdings [Member]
Net income	1,025	397	751
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in earnings of subsidiary	(1,342)	(682)	(976)
Net gain from securities transactions	0	(8)	(7)
Depreciation and amortization	(1)	1	2
Other, net	0	14	0
Change in operating assets and liabilities	18	26	(10)
Net cash used in operating activities	(300)	(252)	(240)
Net investment in subsidiaries	(128)	(681)	109
Proceeds from sale of investments	0	30	0
Other, net	4	2	2
Net cash (used in) provided by investing activities	(124)	(649)	111
Partnership distributions	(51)	(42)	(48)
Partnership contributions	593	0	0
Proceeds from other borrowings	493	1,030	0
Repayments of borrowings	(576)	(4)	(3)
Net cash provided by (used in) financing activities	459	984	(51)
Net change in cash and cash equivalents	35	83	(180)
Cash and cash equivalents	$ 142	$ 107	$ 24