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Business Segments - Summary of Financial Information of Company's Reportable Segments (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Revenue	$ 764	$ 822	$ 777	$ 764	$ 669	$ 697	$ 651	$ 631	$ 3,127	$ 2,648	$ 2,107
Operating profit (loss)	22	$ 26	$ 18	$ 7		$ (6)	$ (14)	$ (21)	73	(41)	(222)
Depreciation and amortization									41	50	53
Property, plant and equipment, net	106				119				106	119	143
Total assets	1,795				1,749				1,795	1,749	1,603
United States [Member]
Segment Reporting Information [Line Items]
Revenue									2,371	1,914	1,445
Operating profit (loss)									57	(53)	(192)
Depreciation and amortization									30	37	40
Property, plant and equipment, net	73				81				73	81	104
Total assets	1,272				1,207				1,272	1,207	1,112
Canada [Member]
Segment Reporting Information [Line Items]
Revenue									358	356	258
Operating profit (loss)									14	13	(18)
Depreciation and amortization									2	3	3
Property, plant and equipment, net	12				14				12	14	15
Total assets	399				401				399	401	306
International [Member]
Segment Reporting Information [Line Items]
Revenue									398	378	404
Operating profit (loss)									2	(1)	(12)
Depreciation and amortization									9	10	10
Property, plant and equipment, net	21				24				21	24	24
Total assets	$ 124				$ 141				$ 124	$ 141	$ 185

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