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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Income Tax Contingency [Line Items]

difference in book basis and tax basis of net assets not subject to income taxes [Table Text Block]

	Icahn Enterprises								Icahn Enterprises Holdings
	December 31,								December 31,
	2017				2016				2017				2016
	(in millions)								(in millions)
Book basis of net assets	$	5,106			$	2,154			$	5,133			$	2,179
Book/tax basis difference	(450		)		1,888				(450		)		1,888
Tax basis of net assets	$	4,656			$	4,042			$	4,683			$	4,067

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

	Year Ended December 31,
	2017				2016				2015
	(in millions)
Domestic	$	1,933			$	(2,370	)		$	(1,870	)
International	220				186				(189		)
	$	2,153			$	(2,184	)		$	(2,059	)

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	Year Ended December 31,
	2017				2016				2015
	(in millions)
Current:
Domestic	$	(21	)		$	(40	)		$	(17	)
International	(52		)		(101		)		(55		)
Total current	(73		)		(141		)		(72		)
Deferred:
Domestic	525				73				(15		)
International	(14		)		32				19
Total deferred	511				105				4
	$	438			$	(36	)		$	(68	)

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	December 31,
	2017				2016
	(in millions)
Deferred tax assets:
Property, plant and equipment	$	261			$	312
Net operating loss	1,158				1,981
Tax credits	141				139
Post-employment benefits, including pensions	263				334
Reorganization costs	3				7
Other	398				430
Total deferred tax assets	2,224				3,203
Less: Valuation allowance	(1,293		)		(1,821		)
Net deferred tax assets	$	931			$	1,382
Deferred tax liabilities:
Property, plant and equipment	$	(467	)		$	(592	)
Intangible assets	(157		)		(195		)
Investment in partnerships	(775		)		(1,495		)
Investment in U.S. subsidiaries	(184		)		(307		)
Other	(138		)		(101		)
Total deferred tax liabilities	(1,721		)		(2,690		)
	$	(790	)		$	(1,308	)

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Year Ended December 31,
	2017				2016				2015
	(in millions)
Income tax benefit (expense) at U.S. statutory rate	$	(754	)		$	764			$	721
Tax effect from:
Foreign operations	42				39				29
Valuation allowance	490				(46		)		(113		)
Non-controlling interest	(7		)		(7		)		41
Goodwill	—				(225		)		(196		)
Uncertain tax positions and assessments	23				(9		)		4
Income not subject to taxation	172				(511		)		(523		)
Enactment of U.S. tax legislation, net of valuation allowance	498				—				—
Other	(26		)		(41		)		(31		)
Income tax benefit (expense)	$	438			$	(36	)		$	(68	)

Schedule of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns Roll Forward [Table Text Block]

	Years Ended December 31,
	2017				2016				2015
	(in millions)
Balance at January 1	$	101			$	94			$	113
Addition based on tax positions related to the current year	7				7				19
Increase for tax positions of prior years	59				8				6
Decrease for tax positions of prior years	(15		)		(1		)		(10		)
Decrease for statute of limitation expiration	(16		)		(6		)		(21		)
Settlements	(11		)		—				(8		)
Impact of currency translation and other	4				(1		)		(5		)
Balance at December 31	$	129			$	101			$	94

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

+ References

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-Publisher FASB
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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure of income before income tax between domestic and foreign jurisdictions.

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Tabular disclosure of the change in unrecognized tax benefits, excluding amounts pertaining to examined tax returns.

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