Goodwill and Intangible Assets - Summary of Changes in Goodwill (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
GOODWILL
Goodwill, beginning of period		$ 292,000,000	$ 490,000,000
Acquisition			30,000,000
Goodwill impairment charge		0	(234,000,000)	$ 0
Translation differences		(1,000,000)	6,000,000
Goodwill, end of period	$ 292,000,000	291,000,000	292,000,000	490,000,000
Electronics
GOODWILL
Goodwill, beginning of period		292,000,000	278,000,000
Acquisition			13,000,000
Goodwill impairment charge			0
Translation differences		(1,000,000)	0
Goodwill, end of period	292,000,000	291,000,000	292,000,000	278,000,000
Brake Systems
GOODWILL
Goodwill, beginning of period		0	212,000,000
Acquisition			17,000,000
Goodwill impairment charge	(234,000,000)		(234,000,000)
Translation differences		0	5,000,000
Goodwill, end of period	$ 0	$ 0	$ 0	$ 212,000,000