Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net (loss) income	$ (597)	$ 577	$ (1,261)	$ 989
Other comprehensive income (loss), net of tax:
Translation adjustments	0	(108)	(1)	(75)
Post-retirement benefits	1	5	2	15
Other comprehensive (loss), net of tax	1	(103)	1	(60)
Comprehensive (loss) income	(596)	474	(1,260)	929
Less: Comprehensive (loss) income attributable to non-controlling interests	(99)	266	(369)	549
Comprehensive (loss) income attributable to Icahn Enterprises	(497)	208	(891)	380
Limited partners
Net (loss) income	(488)	296
Other comprehensive income (loss), net of tax:
Other comprehensive (loss), net of tax	1	(93)
Comprehensive (loss) income attributable to Icahn Enterprises	(487)	203	(873)	372
General partner
Net (loss) income	(10)	6
Other comprehensive income (loss), net of tax:
Other comprehensive (loss), net of tax	0	(1)
Comprehensive (loss) income attributable to Icahn Enterprises	(10)	5	(18)	8
Icahn Enterprises Holdings
Net (loss) income	(596)	578	(1,260)	990
Other comprehensive income (loss), net of tax:
Translation adjustments	0	(108)	(1)	(75)
Post-retirement benefits	1	5	2	15
Other comprehensive (loss), net of tax	1	(103)	1	(60)
Comprehensive (loss) income	(595)	475	(1,259)	930
Less: Comprehensive (loss) income attributable to non-controlling interests	(99)	266	(369)	549
Comprehensive (loss) income attributable to Icahn Enterprises	(496)	209	(890)	381
Icahn Enterprises Holdings | Limited partners
Net (loss) income	(492)	300
Other comprehensive income (loss), net of tax:
Other comprehensive (loss), net of tax	1	(93)
Comprehensive (loss) income attributable to Icahn Enterprises	(491)	207	(881)	377
Icahn Enterprises Holdings | General partner
Net (loss) income	(5)	3
Other comprehensive income (loss), net of tax:
Other comprehensive (loss), net of tax	0	(1)
Comprehensive (loss) income attributable to Icahn Enterprises	$ (5)	$ 2	$ (9)	$ 4