Revenue - Revenue Disaggregated by Primary Region and Products of Revenue Recognition (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of Revenue [Line Items]
Net sales	$ 494	$ 594
Operating Segments | Restraint Control Systems
Disaggregation of Revenue [Line Items]
Net sales	215	268
Operating Segments | Active Safety products
Disaggregation of Revenue [Line Items]
Net sales	192	213
Operating Segments | Brake Systems
Disaggregation of Revenue [Line Items]
Net sales	87	114
Electronics
Disaggregation of Revenue [Line Items]
Net sales	407	481
Electronics | Operating Segments | Restraint Control Systems
Disaggregation of Revenue [Line Items]
Net sales	215	268
Electronics | Operating Segments | Active Safety products
Disaggregation of Revenue [Line Items]
Net sales	192	213
Electronics | Operating Segments | Brake Systems
Disaggregation of Revenue [Line Items]
Net sales	0	0
Brake Systems
Disaggregation of Revenue [Line Items]
Net sales	87	114
Brake Systems | Operating Segments | Restraint Control Systems
Disaggregation of Revenue [Line Items]
Net sales	0	0
Brake Systems | Operating Segments | Active Safety products
Disaggregation of Revenue [Line Items]
Net sales	0	0
Brake Systems | Operating Segments | Brake Systems
Disaggregation of Revenue [Line Items]
Net sales	87	114
Asia | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	161	211
Asia | Electronics | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	89	112
Asia | Brake Systems | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	72	99
Americas | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	169	193
Americas | Electronics | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	154	179
Americas | Brake Systems | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	15	14
Europe | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	164	190
Europe | Electronics | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	164	190
Europe | Brake Systems | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	$ 0	$ 0