Operations by Reporting Segment - Summary of Net Sales, Cost of Products Sold and Gross Margin Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Segment Reporting Information [Line Items]
Net sales	$ 1,897	$ 1,835
Cost of products sold	(1,609)	(1,584)
Gross profit	288	251
Reporting Segment One [Member]
Segment Reporting Information [Line Items]
Net sales	1,128	1,138
Cost of products sold	(992)	(996)
Gross profit	136	142
Reporting Segment Two [Member]
Segment Reporting Information [Line Items]
Net sales	831	773
Cost of products sold	(679)	(664)
Gross profit	152	109
Inter-segment eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	(62)	(76)
Cost of products sold	62	76
Gross profit	0	0
Total Reporting Segment [Member]
Segment Reporting Information [Line Items]
Net sales	1,897	1,835
Cost of products sold	(1,609)	(1,584)
Gross profit	288	251
Intersegment eliminations attributable to sales from Powertrain to Motorparts [Member]
Segment Reporting Information [Line Items]
Net sales	54	67
Intersegment eliminations attributable to sales from Motorparts to Powertrain [Member]
Segment Reporting Information [Line Items]
Net sales	$ 9	$ 10