Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Components of Income (Loss) Before Income Taxes

The components of income before income taxes are as follows:

	Year Ended December 31,
	2017		2016		2015
Domestic	$	917	$	476	$	880
Foreign	164		82		83
	$	1,081	$	558	$	963

Schedule of The Provision For (Benefit From) Income Taxes

The Company's provision for (benefit from) income taxes consists of the following:

	Year Ended December 31,
	2017			2016			2015
Current
Federal	$	231		$	8		$	225
State	18			9			24
Foreign	27			20			9
	276			37			258
Deferred
Federal	(557		)	136			30
State	25			(33		)	3
Foreign	(2		)	(2		)	7
	(534		)	101			40
Total provision for (benefit from) income taxes	$	(258	)	$	138		$	298

Reconciliation of Taxes Computed at the Statutory Rate to Income Tax Expense

A reconciliation of taxes computed at the statutory rate to the Company's income tax expense is as follows:

	Year Ended December 31,
	2017			2016			2015
Provision for federal income tax, at statutory rate	$	378		$	195		$	337
State income tax provision, net of federal income tax effect	26			1			17
Foreign income tax rate differential	(33		)	(8		)	(13		)
Manufacturing deduction	(23		)	(2		)	(24		)
Depletion	(7		)	(2		)	—
Noncontrolling interests	(9		)	(7		)	(7		)
Tax on previously held shares of Axiall Corporation and certain    other acquisition related items	—			(13		)	—
Tax Act related adjustment	(591		)	—			—
Changes in state apportionment and other state adjustments	2			(17		)	—
Research and development expenditures and adjustments related to prior    years' tax returns	(1		)	(8		)	—
Other, net	—			(1		)	(12		)
	$	(258	)	$	138		$	298

Schedule of Deferred Tax Assets And Liabilities

The tax effects of the principal temporary differences between financial reporting and income tax reporting at December 31 are as follows:

	2017			2016
Net operating loss carryforward	$	64		$	70
Credit carryforward	26			24
Accruals	53			67
Pension	79			114
Allowance for doubtful accounts	5			12
Inventories	11			13
Other	15			36
Deferred taxes assets—total	253			336
Property, plant and equipment	(906		)	(1,374		)
Intangibles	(154		)	(221		)
Turnaround costs	(8		)	(1		)
Basis difference—consolidated partnerships	(209		)	(308		)
Other	(18		)	(17		)
Deferred tax liabilities—total	(1,295		)	(1,921		)
Valuation allowance	(56		)	(53		)
Total net deferred tax liabilities	$	(1,098	)	$	(1,638	)
Balance sheet classifications
Noncurrent deferred tax asset	$	13		$	12
Noncurrent deferred tax liability	(1,111		)	(1,650		)
Total net deferred tax liabilities	$	(1,098	)	$	(1,638	)