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Condensed Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Total	Icahn Enterprises Holdings	General partner	General partner Icahn Enterprises Holdings	Limited partners	Limited partners Icahn Enterprises Holdings	Total Partners' Equity	Total Partners' Equity Icahn Enterprises Holdings	Non-controlling Interests	Non-controlling Interests Icahn Enterprises Holdings
Equity at Dec. 31, 2015	$ 10,033	$ 10,057	$ (257)	$ (299)	$ 4,244	$ 4,310	$ 3,987	$ 4,011	$ 6,046	$ 6,046
Increase (Decrease) in Partners' Capital [Roll Forward]
Net loss	(1,609)	(1,609)	(17)	(8)	(820)	(829)	(837)	(837)	(772)	(772)
Other comprehensive income	53	53	1	0	40	41	41	41	12	12
Partnership distributions	(202)	(202)	(4)	(2)	(198)	(200)	(202)	(202)	0	0
Partnership contributions	1	1	1	1	0	0	1	1	0	0
Investment segment contributions	490	490	0	0	0	0	0	0	490	490
Dividends and distributions to non-controlling interests in subsidiaries	(19)	(19)	0	0	0	0	0	0	(19)	(19)
LP Unit issuance	35	35	0	0	35	35	35	35	0	0
Changes in subsidiary equity and other	(274)	(274)	(10)	(5)	(499)	(504)	(509)	(509)	235	235
Equity at Mar. 31, 2016	8,508	8,532	(286)	(313)	2,802	2,853	2,516	2,540	5,992	5,992
Equity at Dec. 31, 2016	8,017	8,042	(294)	(317)	2,448	2,496	2,154	2,179	5,863	5,863
Increase (Decrease) in Partners' Capital [Roll Forward]
Net loss	(160)	(160)	0	0	(18)	(18)	(18)	(18)	(142)	(142)
Other comprehensive income	100	100	2	1	92	93	94	94	6	6
Partnership distributions	(239)	(239)	(5)	(3)	(234)	(236)	(239)	(239)	0	0
Partnership contributions	612	612	12	6	600	606	612	612	0	0
Investment segment contributions	600	600	0	0	0	0	0	0	600	600
Dividends and distributions to non-controlling interests in subsidiaries	(10)	(10)	0	0	0	0	0	0	(10)	(10)
Cumulative effect adjustment from adoption of accounting principle	(47)	(47)	(1)	0	(46)	(47)	(47)	(47)	0	0
Changes in subsidiary equity and other	(306)	(306)	(3)	(2)	(123)	(124)	(126)	(126)	(180)	(180)
Equity at Mar. 31, 2017	$ 8,567	$ 8,592	$ (289)	$ (315)	$ 2,719	$ 2,770	$ 2,430	$ 2,455	$ 6,137	$ 6,137

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