Goodwill and Other Intangible Assets - Summary of Company's Goodwill and Other Intangible Assets (Net) (Detail) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Goodwill [Roll Forward]
Goodwill, beginning of period	$ 685	$ 673		$ 673
Acquisitions and purchase accounting adjustments	0	6
Impairment charges	(6)
Foreign exchange	0	6
Goodwill, end of period	679	685		679
Goodwill, Accumulated impairment charges	790			790		$ 784
Goodwill impairment charges	6		$ 0	6	$ (6)
Amortization expense	14		$ 15	29	29
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Remaining 2016	30			30
2017	58			58
2018	49			49
2019	49			49
2020	49			49
2021 and thereafter	139			139
Total	374			374		404
Powertrain [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period	524	512		512
Acquisitions and purchase accounting adjustments	0	6
Impairment charges	(6)
Foreign exchange	0	6
Goodwill, end of period	518	524		518
Goodwill, Accumulated impairment charges	142			142		136
Motorparts [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period	161	161		161
Acquisitions and purchase accounting adjustments	0	0
Impairment charges	0
Foreign exchange	0	0
Goodwill, end of period	161	$ 161		161
Goodwill, Accumulated impairment charges	$ 648			648		$ 648
Finite-Lived Intangible Assets [Member]
Goodwill [Roll Forward]
Amortization expense				$ 29	$ 29