Restructuring Charges And Asset Impairments - Net Restructuring Costs by Type of Exit Cost (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Restructuring Cost and Reserve [Line Items]
Severance and other charges, net	$ (6)	$ (27)	$ (21)	$ (39)
Asset impairments related to restructuring activities	0	(1)	0	(1)
Total restructuring charges	(6)	(28)	(21)	(40)
Other asset impairments	0	(2)	(3)	(3)
Impairment of assets held for sale			(3)	(4)
Restructuring Costs and Asset Impairment Charges	(6)	(30)	(24)	(43)
Total Reporting Segments [Member] | Powertrain [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other charges, net	(2)	(2)	(14)	(8)
Asset impairments related to restructuring activities	0	0	0	0
Total restructuring charges	(2)	(2)	(14)	(8)
Other asset impairments	0	(2)		(2)
Impairment of assets held for sale			0
Restructuring Costs and Asset Impairment Charges	(2)	(4)	(14)	(10)
Total Reporting Segments [Member] | Motorparts [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other charges, net	(4)	(25)	(7)	(31)
Asset impairments related to restructuring activities	0	(1)	0	(1)
Total restructuring charges	(4)	(26)	(7)	(32)
Other asset impairments	0	0		(1)
Impairment of assets held for sale			(3)
Restructuring Costs and Asset Impairment Charges	(4)	(26)	(10)	(33)
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Severance and other charges, net	0	0	0	0
Asset impairments related to restructuring activities	0	0	0	0
Total restructuring charges	0	0	0	0
Other asset impairments	0	0		0
Impairment of assets held for sale			0
Restructuring Costs and Asset Impairment Charges	$ 0	$ 0	$ 0	$ 0