Revenue (Tables)

3 Months Ended

Mar. 31, 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 March 31, 2021						Three Months Ended March 31, 2020
(Dollars in millions)	Electronics		Brake Systems		Total		Electronics		Brake Systems		Total
Asia	$	98	$	—	$	98	$	58	$	24	$	82
Americas	132		11		143		117		13		130
Europe	178		—		178		150		—		150
Total net sales	$	408	$	11	$	419	$	325	$	37	$	362

Net Sales by Products

	Three Months Ended March 31, 2021						Three Months Ended March 31, 2020
(Dollars in millions)	Electronics		Brake Systems		Total		Electronics		Brake Systems		Total
Restraint Control Systems	$	189	$	—	$	189	$	162	$	—	$	162
Active Safety products	206		—		206		163		—		163
Brake Systems	—		11		11		—		37		37
Other	13		—		13		—		—		—
Total net sales	$	408	$	11	$	419	$	325	$	37	$	362