Operations by Reporting Segment - Summary of Total Assets (Detail) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Total Assets	$ 7,477	$ 7,228
Powertrain [Member]
Segment Reporting Information [Line Items]
Total Assets	4,198	3,997
Reporting Segment Two [Member]
Segment Reporting Information [Line Items]
Total Assets	3,135	3,141
Total Reporting Segment [Member]
Segment Reporting Information [Line Items]
Total Assets	7,333	7,138
Corporate [Member]
Segment Reporting Information [Line Items]
Total Assets	$ 144	$ 90