Segment Information - Schedule of (Loss)/Income Before Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Segment operating (loss)/income	$ (48)	$ (12)	$ (64)	$ (22)
Interest and other non-operating items, net	1	1	1
Loss from equity method investment	(16)	(8)	(30)	(8)
Loss before income taxes	(63)	(19)	(93)	(30)
Operating Segments
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Segment operating (loss)/income	(35)	(8)	(44)	(12)
Electronics | Operating Segments
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Segment operating (loss)/income	(31)	(7)	(32)	(9)
Brake Systems | Operating Segments
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Segment operating (loss)/income	(4)	(1)	(12)	(3)
Corporate and other
Segment Reporting Reconciling Item For Operating Profit Loss From Segment To Consolidated [Line Items]
Segment operating (loss)/income	$ (13)	$ (4)	$ (20)	$ (10)