Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net income	$ 963	$ 1,200
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Net gain from securities transactions	(1,020)	(1,849)
Purchases of securities	(542)	(4,005)
Proceeds from sales of securities	1,515	1,074
Purchases to cover securities sold, not yet purchased	(186)	(83)
Proceeds from securities sold, not yet purchased	895	54
Changes in receivables and payables relating to securities transactions	(1,463)	2,299
Loss on extinguishment of debt	2	162
Equity earnings from non-consolidated affiliates	(32)	(26)
Depreciation and amortization	419	395
Deferred taxes	75	90
Other, net	(12)	29
Changes in cash held at consolidated affiliated partnerships and restricted cash	(322)	(898)
Changes in other operating assets and liabilities	(139)	720
Net cash provided by (used in) operating activities	153	(838)
Cash flows from investing activities:
Capital expenditures	(729)	(587)
Acquisition of business, net of cash acquired	(786)	(402)
Proceeds from sale of investments	68	0
Net proceeds from the sale and disposition of assets	54	0
Purchases of investments	(107)	(78)
Other, net	7	19
Net cash used in investing activities	(1,493)	(1,048)
Cash flows from financing activities:
Capital contribution by non-controlling interests	245	500
Partnership distributions	(58)	(72)
Proceeds from offering of subsidiary equity	31	164
Distributions to non-controlling interests in subsidiaries	(115)	(493)
Proceeds from issuance of senior unsecured notes	0	4,991
Proceeds from other borrowings	1,122	4,242
Repayments of other borrowings	0	(3,625)
Repayments of other borrowings	(643)	(3,730)
Other, net	(15)	(24)
Net cash provided by financing activities	567	1,953
Effect of exchange rate changes on cash and cash equivalents	15	4
Net (decrease) increase in cash and cash equivalents	(758)	71
Cash and cash equivalents, beginning of period	2,912	3,262
Cash and cash equivalents, end of period	2,154	3,333
Supplemental information:
Cash payments for interest, net of amounts capitalized	312	300
Net cash (refunds) payments for income taxes	(14)	57
Fair value of investment in Ferrous Resources prior to acquisition of controlling interest	36	0
Changes in accounts payable related to construction in progress additions	26	24
Changes in accounts payable related to construction in progress additions	0	(9)
Icahn Enterprises Holdings [Member]
Cash flows from operating activities:
Net income	964	1,201
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Net gain from securities transactions	(1,020)	(1,849)
Purchases of securities	(542)	(4,005)
Proceeds from sales of securities	1,515	1,074
Purchases to cover securities sold, not yet purchased	(186)	(83)
Proceeds from securities sold, not yet purchased	895	54
Changes in receivables and payables relating to securities transactions	(1,463)	2,299
Loss on extinguishment of debt	2	162
Equity earnings from non-consolidated affiliates	(32)	(26)
Depreciation and amortization	418	394
Deferred taxes	75	90
Other, net	(12)	29
Changes in cash held at consolidated affiliated partnerships and restricted cash	(322)	(898)
Changes in other operating assets and liabilities	(139)	720
Net cash provided by (used in) operating activities	153	(838)
Cash flows from investing activities:
Capital expenditures	(729)	(587)
Acquisition of business, net of cash acquired	(786)	(402)
Proceeds from sale of investments	68	0
Net proceeds from the sale and disposition of assets	54	0
Purchases of investments	(107)	(78)
Other, net	7	19
Net cash used in investing activities	(1,493)	(1,048)
Cash flows from financing activities:
Capital contribution by non-controlling interests	245	500
Partnership distributions	(58)	(72)
Proceeds from offering of subsidiary equity	31	164
Distributions to non-controlling interests in subsidiaries	(115)	(493)
Proceeds from issuance of senior unsecured notes	0	4,991
Proceeds from other borrowings	1,122	4,242
Repayments of other borrowings	0	(3,625)
Repayments of other borrowings	(643)	(3,730)
Other, net	(15)	(24)
Net cash provided by financing activities	567	1,953
Effect of exchange rate changes on cash and cash equivalents	15	4
Net (decrease) increase in cash and cash equivalents	(758)	71
Cash and cash equivalents, beginning of period	2,912	3,262
Cash and cash equivalents, end of period	2,154	3,333
Supplemental information:
Cash payments for interest, net of amounts capitalized	312	300
Net cash (refunds) payments for income taxes	(14)	57
Fair value of investment in Ferrous Resources prior to acquisition of controlling interest	36	0
Changes in accounts payable related to construction in progress additions	26	24
Changes in accounts payable related to construction in progress additions	$ 0	$ (9)