Revenue

3 Months Ended

Mar. 31, 2020

Revenue from Contract with Customer [Abstract]

Revenue

Revenue

Disaggregation of revenue

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

Net Sales by Region

	Three Months Ended March 31, 2020						Three Months Ended March 31, 2019
(Dollars in millions)	Electronics		Brake Systems		Total		Electronics		Brake Systems		Total
Asia	$	58	$	24	$	82	$	89	$	72	$	161
Americas	117		13		130		154		15		169
Europe	150		—		150		164		—		164
Total net sales	$	325	$	37	$	362	$	407	$	87	$	494

Net Sales by Products

	Three Months Ended March 31, 2020						Three Months Ended March 31, 2019
(Dollars in millions)	Electronics		Brake Systems		Total		Electronics		Brake Systems		Total
Restraint Control Systems	$	162	$	—	$	162	$	215	$	—	$	215
Active Safety products	163		—		163		192		—		192
Brake Systems	—		37		37		—		87		87
Total net sales	$	325	$	37	$	362	$	407	$	87	$	494