Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:
Net (loss) income	$ 573	$ 2,039
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Net gain from securities transactions	(1,005)	(2,495)
Purchases of securities	(6,121)	(5,532)
Proceeds from sales of securities	5,065	1,574
Purchases to cover securities sold, not yet purchased	(137)	(45)
Proceeds from securities sold, not yet purchased	328	124
Changes in receivables and payables relating to securities transactions	1,485	3,739
Loss (gain) on extinguishment of debt	162	(5)
(Gain) loss on disposal of assets	(4)	55
Depreciation and amortization	601	549
Deferred taxes	18	123
Other, net	31	7
Changes in cash held at consolidated affiliated partnerships and restricted cash	(912)	4
Changes in other operating assets and liabilities	(703)	269
Net cash (used in) provided by operating activities	(619)	406
Cash flows from investing activities:
Capital expenditures	(986)	(790)
Acquisitions of business, net of cash acquired	(558)	0
Net proceeds associated with business dispositions	0	26
Proceeds from sale of investments	0	38
Purchases of investments	(78)	(65)
Other, net	37	5
Net cash used in investing activities	(1,585)	(786)
Cash flows from financing activities:
Investment segment contributions	500	45
Investment segment distributions	0	(185)
Proceeds from equity offerings	0	317
Partnership distributions	(96)	(32)
Proceeds from offering of subsidiary equity	188	1,308
Distributions to non-controlling interests in subsidiaries	(595)	(342)
Proceeds from issuance of senior unsecured notes	4,991	493
Proceeds from other borrowings	4,689	122
Repayments of other borrowings	(3,625)	0
Repayments of other borrowings	(3,997)	(1,074)
Other, net	(42)	(14)
Net cash provided by financing activities	2,013	638
Effect of exchange rate changes on cash and cash equivalents	9	(12)
Net (decrease) increase in cash and cash equivalents	(182)	246
Cash and cash equivalents, beginning of period	3,262	3,108
Cash and cash equivalents, end of period	3,080	3,354
Supplemental information:
Cash payments for interest, net of amounts capitalized	518	468
Net cash payments for income taxes	81	117
Non-cash investment segment contribution	0	185
Distribution payable to Icahn Enterprises unitholders	0	140
Construction in progress additions included in accounts payable	25	34
Changes in accounts payable related to construction in progress additions	(13)	(24)
Icahn Enterprises Holdings [Member]
Cash flows from operating activities:
Net (loss) income	574	2,039
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Net gain from securities transactions	(1,005)	(2,495)
Purchases of securities	(6,121)	(5,532)
Proceeds from sales of securities	5,065	1,574
Purchases to cover securities sold, not yet purchased	(137)	(45)
Proceeds from securities sold, not yet purchased	328	124
Changes in receivables and payables relating to securities transactions	1,485	3,739
Loss (gain) on extinguishment of debt	162	(5)
(Gain) loss on disposal of assets	(4)	55
Depreciation and amortization	600	549
Deferred taxes	18	123
Other, net	31	7
Changes in cash held at consolidated affiliated partnerships and restricted cash	(912)	4
Changes in other operating assets and liabilities	(703)	269
Net cash (used in) provided by operating activities	(619)	406
Cash flows from investing activities:
Capital expenditures	(986)	(790)
Acquisitions of business, net of cash acquired	(558)	0
Net proceeds associated with business dispositions	0	26
Proceeds from sale of investments	0	38
Purchases of investments	(78)	(65)
Other, net	37	5
Net cash used in investing activities	(1,585)	(786)
Cash flows from financing activities:
Investment segment contributions	500	45
Investment segment distributions	0	(185)
Proceeds from equity offerings	0	317
Partnership distributions	(96)	(32)
Proceeds from offering of subsidiary equity	188	1,308
Distributions to non-controlling interests in subsidiaries	(595)	(342)
Proceeds from issuance of senior unsecured notes	4,991	493
Proceeds from other borrowings	4,689	122
Repayments of other borrowings	(3,625)	0
Repayments of other borrowings	(3,997)	(1,074)
Other, net	(42)	(14)
Net cash provided by financing activities	2,013	638
Effect of exchange rate changes on cash and cash equivalents	9	(12)
Net (decrease) increase in cash and cash equivalents	(182)	246
Cash and cash equivalents, beginning of period	3,262	3,108
Cash and cash equivalents, end of period	3,080	3,354
Supplemental information:
Cash payments for interest, net of amounts capitalized	518	468
Net cash payments for income taxes	81	117
Non-cash investment segment contribution	0	185
Distribution payable to Icahn Enterprises unitholders	0	140
Construction in progress additions included in accounts payable	25	34
Changes in accounts payable related to construction in progress additions	$ (13)	$ (24)