Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Allowances and operating liabilities	$ 3	$ 5	$ 8
Net operating loss carryforwards	79	56	56
Foreign tax credit carryforwards	7	7	8
Allowance for doubtful accounts	5	2	6
Inventory reserve	13	9	10
Stock-based compensation	6	8	8
Intangible assets	66	28	24
Assets held-for-sale		4
Investment in subsidiaries		9
Capital Loss Carryforward	11
Book over tax depreciation	5	4	2
Other	5	4	3
Total deferred tax assets	200	136	125
Deferred tax liabilities:
Net deferred tax assets before valuation allowance	200	136	125
Valuation allowance	(199)	(138)	(129)
Net deferred tax assets	$ 1
Net deferred tax liabilities		$ (2)	$ (4)