Revenue (Tables)

9 Months Ended

Sep. 30, 2021

Revenue from Contract with Customer [Abstract]

Revenue disaggregated by primary region and products of revenue recognition

In the following tables, revenue is disaggregated by primary region and products.

Net Sales by Region

	Three Months Ended September 30, 2021						Three Months Ended September 30, 2020
(Dollars in millions)	Electronics		Brake Systems		Total		Electronics		Brake Systems		Total
Asia	$	111	$	—	$	111	$	85	$	—	$	85
Americas	116		11		127		123		13		136
Europe	153		—		153		150		—		150
Total net sales	$	380	$	11	$	391	$	358	$	13	$	371

Net Sales by Region

	Nine Months Ended September 30, 2021						Nine Months Ended September 30, 2020
(Dollars in millions)	Electronics		Brake Systems		Total		Electronics		Brake Systems		Total
Asia	$	310	$	—	$	310	$	202	$	24	$	226
Americas	362		35		$	397	283		33		$	316
Europe	501		—		501		376		—		376
Total net sales	$	1,173	$	35	$	1,208	$	861	$	57	$	918

Net Sales by Products

	Three Months Ended September 30, 2021						Three Months Ended September 30, 2020
(Dollars in millions)	Electronics		Brake Systems		Total		Electronics		Brake Systems		Total
Restraint Control Systems	$	153	$	—	$	153	$	188	$	—	$	188
Active Safety products	215		—		215		170		—		170
Brake Systems	—		11		11		—		13		13
Other	12		—		12		—		—		—
Total net sales	$	380	$	11	$	391	$	358	$	13	$	371

Net Sales by Products

	Nine Months Ended September 30, 2021						Nine Months Ended September 30, 2020
(Dollars in millions)	Electronics		Brake Systems		Total		Electronics		Brake Systems		Total
Restraint Control Systems	$	517	$	—	$	517	$	450	$	—	$	450
Active Safety products	618		—		618		411		—		411
Brake Systems	—		35		35		—		57		57
Other	38		—		38		—		—		—
Total net sales	$	1,173	$	35	$	1,208	$	861	$	57	$	918