Revenue - Revenue Disaggregated by Primary Region and Products of Revenue Recognition (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Net sales	$ 526	$ 567	$ 1,692	$ 1,729
Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	526	567	1,692	1,732
Operating Segments | Restraint Control Systems
Disaggregation of Revenue [Line Items]
Net sales	226	251	739	788
Operating Segments | Active Safety products
Disaggregation of Revenue [Line Items]
Net sales	201	198	628	581
Operating Segments | Brake Systems
Disaggregation of Revenue [Line Items]
Net sales	100	118	325	363
Less: intercompany sales
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	(3)
Electronics
Disaggregation of Revenue [Line Items]
Net sales	426	449	1,367	1,369
Electronics | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	426	449	1,367	1,369
Electronics | Operating Segments | Restraint Control Systems
Disaggregation of Revenue [Line Items]
Net sales	226	251	739	788
Electronics | Operating Segments | Active Safety products
Disaggregation of Revenue [Line Items]
Net sales	201	198	628	581
Electronics | Operating Segments | Brake Systems
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Electronics | Less: intercompany sales
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Brake Systems
Disaggregation of Revenue [Line Items]
Net sales	100	118	325	361
Brake Systems | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	100	118	325	363
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	100	118	325	363
Brake Systems | Less: intercompany sales
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	(2)
Asia | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	183	203	594	617
Asia | Electronics | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	98	114	314	353
Asia | Brake Systems | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	85	89	280	264
Americas | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	181	195	562	624
Americas | Electronics | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	166	166	517	525
Americas | Brake Systems | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	15	29	45	98
Europe | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	163	170	537	491
Europe | Electronics | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	163	170	537	491
Europe | Brake Systems | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	$ 0	$ 0	$ 0	$ 0