Revenue - Revenue Disaggregated by Primary Region and Products of Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Net sales	$ 398	$ 184	$ 816	$ 546
Operating Segments | Restraint Control Systems
Disaggregation of Revenue [Line Items]
Net sales	175	100	364	262
Operating Segments | Active Safety products
Disaggregation of Revenue [Line Items]
Net sales	197	79	402	241
Operating Segments | Brake Systems
Disaggregation of Revenue [Line Items]
Net sales	13	5	24	43
Operating Segments | Other
Disaggregation of Revenue [Line Items]
Net sales	13	0	26	0
Electronics
Disaggregation of Revenue [Line Items]
Net sales	385	179	792	503
Electronics | Operating Segments | Restraint Control Systems
Disaggregation of Revenue [Line Items]
Net sales	175	100	364	262
Electronics | Operating Segments | Active Safety products
Disaggregation of Revenue [Line Items]
Net sales	197	79	402	241
Electronics | Operating Segments | Brake Systems
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Electronics | Operating Segments | Other
Disaggregation of Revenue [Line Items]
Net sales	13	0	26	0
Brake Systems
Disaggregation of Revenue [Line Items]
Net sales	13	5	24	43
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	13	5	24	43
Brake Systems | Operating Segments | Other
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Asia | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	100	59	198	141
Asia | Electronics | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	100	59	198	117
Asia | Brake Systems | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	24
Americas | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	127	48	269	179
Americas | Electronics | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	114	43	245	160
Americas | Brake Systems | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	13	5	24	19
Europe | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	171	77	349	226
Europe | Electronics | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	171	77	349	226
Europe | Brake Systems | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	$ 0	$ 0	$ 0	$ 0