Revenue - Revenue Disaggregated by Primary Region and Products of Revenue Recognition (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Disaggregation of Revenue [Line Items]
Net sales	$ 462	$ 526	$ 1,446	$ 1,692
Operating Segments | Restraint Control Systems
Disaggregation of Revenue [Line Items]
Net sales	193	226	617	739
Operating Segments | Active Safety products
Disaggregation of Revenue [Line Items]
Net sales	178	201	554	628
Operating Segments | Brake Systems
Disaggregation of Revenue [Line Items]
Net sales	91	100	275	325
Electronics
Disaggregation of Revenue [Line Items]
Net sales	371	426	1,171	1,367
Electronics | Operating Segments | Restraint Control Systems
Disaggregation of Revenue [Line Items]
Net sales	193	226	617	739
Electronics | Operating Segments | Active Safety products
Disaggregation of Revenue [Line Items]
Net sales	178	201	554	628
Electronics | Operating Segments | Brake Systems
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Brake Systems
Disaggregation of Revenue [Line Items]
Net sales	91	100	275	325
Brake Systems | Operating Segments | Restraint Control Systems
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Brake Systems | Operating Segments | Active Safety products
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Brake Systems | Operating Segments | Brake Systems
Disaggregation of Revenue [Line Items]
Net sales	91	100	275	325
Asia | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	157	183	488	594
Asia | Electronics | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	80	98	259	314
Asia | Brake Systems | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	77	85	229	280
Americas | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	147	181	478	562
Americas | Electronics | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	133	166	432	517
Americas | Brake Systems | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	14	15	46	45
Europe | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	158	163	480	537
Europe | Electronics | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	158	163	480	537
Europe | Brake Systems | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	$ 0	$ 0	$ 0	$ 0