Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets:
Allowances and operating liabilities	$ 8	$ 8	$ 9
Net operating loss carryforwards	52	78	13
Foreign tax credit carryforwards	29	5	3
Trade credit	1	3	4
Allowance for doubtful accounts	6	10	12
Inventory reserve	12	18	11
Stock-based compensation	15	19	19
Intangible assets	27	53	56
Other	2	6	1
Total deferred tax assets	152	200	128
Deferred tax liabilities:
Tax over book depreciation		(4)	(6)
Total deferred tax liabilities		(4)	(6)
Net deferred tax assets before valuation allowance	152	196	122
Valuation allowance	(157)	(202)	(129)
Net deferred tax assets (liability)	$ (5)	$ (6)	$ (7)