Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net (loss) income	$ (664)	$ 412
Adjustments to reconcile net (loss) income to net cash used in operating activities:
Income from discontinued operations	0	(45)
Net gain from securities transactions	(505)	(285)
Purchases of securities	(584)	(886)
Proceeds from sales of securities	966	3,130
Purchases to cover securities sold, not yet purchased	(113)	(690)
Proceeds from securities sold, not yet purchased	17	0
Changes in receivables and payables relating to securities transactions	(663)	(1,824)
Depreciation and amortization	123	128
Deferred taxes	(8)	20
Other, net	5	6
Changes in operating assets and liabilities	1,138	(673)
Net cash used in operating activities from continuing operations	(288)	(707)
Net cash provided by operating activities from discontinued operations	0	112
Net cash used in operating activities	(288)	(595)
Cash flows from investing activities:
Capital expenditures	(65)	(62)
Acquisition of businesses, net of cash acquired	(10)	(1)
Purchases of investments	(25)	(5)
Proceeds from sale of investments	424	0
Other, net	(10)	15
Net cash provided by (used in) investing activities from continuing operations	314	(53)
Net cash used in investing activities from discontinued operations	0	(154)
Net cash provided by (used in) investing activities	314	(207)
Cash flows from financing activities:
Investment segment contributions from non-controlling interests	0	280
Proceeds from offering of subsidiary equity	0	6
Purchase of additional interests in consolidated subsidiaries	(241)	0
Dividends and distributions to non-controlling interests in subsidiaries	(30)	(28)
Proceeds from subsidiary borrowings	269	331
Repayments of subsidiary borrowings	(271)	(349)
Other, net	1	(2)
Net cash (used in) provided by financing activities from continuing operations	(272)	238
Net cash used in financing activities from discontinued operations	0	(13)
Net cash (used in) provided by financing activities	(272)	225
Effect of exchange rate changes on cash and cash equivalents and restricted cash and restricted cash equivalents	(1)	(3)
Add back change in cash and restricted cash of assets held for sale	(28)	60
Net (decrease) increase in cash and cash equivalents and restricted cash and restricted cash equivalents	(275)	(520)
Cash and cash equivalents and restricted cash and restricted cash equivalents, beginning of period	5,338	1,911
Cash and cash equivalents and restricted cash and restricted cash equivalents, end of period	5,063	1,391
Icahn Enterprises Holdings
Cash flows from operating activities:
Net (loss) income	(664)	412
Adjustments to reconcile net (loss) income to net cash used in operating activities:
Income from discontinued operations	0	(45)
Net gain from securities transactions	(505)	(285)
Purchases of securities	(584)	(886)
Proceeds from sales of securities	966	3,130
Purchases to cover securities sold, not yet purchased	(113)	(690)
Proceeds from securities sold, not yet purchased	17	0
Changes in receivables and payables relating to securities transactions	(663)	(1,824)
Depreciation and amortization	123	128
Deferred taxes	(8)	20
Other, net	5	6
Changes in operating assets and liabilities	1,138	(673)
Net cash used in operating activities from continuing operations	(288)	(707)
Net cash provided by operating activities from discontinued operations	0	112
Net cash used in operating activities	(288)	(595)
Cash flows from investing activities:
Capital expenditures	(65)	(62)
Acquisition of businesses, net of cash acquired	(10)	(1)
Purchases of investments	(25)	(5)
Proceeds from sale of investments	424	0
Other, net	(10)	15
Net cash provided by (used in) investing activities from continuing operations	314	(53)
Net cash used in investing activities from discontinued operations	0	(154)
Net cash provided by (used in) investing activities	314	(207)
Cash flows from financing activities:
Investment segment contributions from non-controlling interests	0	280
Proceeds from offering of subsidiary equity	0	6
Purchase of additional interests in consolidated subsidiaries	(241)	0
Dividends and distributions to non-controlling interests in subsidiaries	(30)	(28)
Proceeds from subsidiary borrowings	269	331
Repayments of subsidiary borrowings	(271)	(349)
Other, net	1	(2)
Net cash (used in) provided by financing activities from continuing operations	(272)	238
Net cash used in financing activities from discontinued operations	0	(13)
Net cash (used in) provided by financing activities	(272)	225
Effect of exchange rate changes on cash and cash equivalents and restricted cash and restricted cash equivalents	(1)	(3)
Add back change in cash and restricted cash of assets held for sale	(28)	60
Net (decrease) increase in cash and cash equivalents and restricted cash and restricted cash equivalents	(275)	(520)
Cash and cash equivalents and restricted cash and restricted cash equivalents, beginning of period	5,338	1,911
Cash and cash equivalents and restricted cash and restricted cash equivalents, end of period	$ 5,063	$ 1,391