Operations by Reporting Segment - Summary of Net Income (Loss) (Detail) - USD ($) $ in Millions	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operational EBITDA	$ 196		$ 182		$ 389	$ 324
Restructuring charges and asset impairments	(6)		(30)		(24)	(43)
Goodwill and intangible impairment expense, net	(6)		0		(6)	6
Loss on sale of equity method investment	0		0		0	(11)	$ (11)
Financing charges	(4)		(2)		(7)	(4)
Gain from discontinued operations, net of income tax	0		7		0	7
Transaction related costs	(2)		(2)		(2)	(6)
Legal separation costs	0		1		0	2
Other reconciling items to EBITDA	(1)		(3)		(5)	(1)
Total Operational EBITDA	177		151		345	270
Depreciation and amortization	(93)		(83)		(180)	(166)
Interest expense, net	(36)		(32)		(73)	(67)
Income tax expense	(15)		(12)		(23)	(23)
Net income (loss)	33		24		69	14
Restructuring Charges	(6)	$ (15)	(31)	$ (12)
Asset impairments, including impairments related to restructuring activities	0		(2)		(3)	(3)
Restructuring Costs and Asset Impairment Charges	(6)		(30)		(24)	(43)
Non-service cost components associated with U.S. based funded pension plans	(3)		0		(6)	0
Share based compensation income	0		0		0	1
Other	2		(3)		1	(2)
Other reconciling items to EBITDA	(1)		(3)		(5)	(1)
Powertrain [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operational EBITDA	135		115		254	226
Motorparts [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operational EBITDA	$ 61		$ 67		$ 135	$ 98