Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Segment Reporting [Line Items]
Revenues from external customers	$ 2,372	$ 2,274	$ 7,483	$ 6,883
EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests	104	134	334	282
Total assets	5,028	4,935	5,028	4,935	$ 4,842
Intersegment Revenues
Segment Reporting [Line Items]
Intersegment revenues	0	0	0	0
Operating Segments
Segment Reporting [Line Items]
Revenues from external customers	2,372	2,274	7,483	6,883
EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests	144	157	466	498
Total assets	4,972	4,876	4,972	4,876
Operating Segments | Intersegment Revenues
Segment Reporting [Line Items]
Intersegment revenues	42	37	122	128
Reclass and Elims
Segment Reporting [Line Items]
Revenues from external customers	0	0	0	0
EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests	0	0	0	0
Total assets	56	59	56	59
Reclass and Elims | Intersegment Revenues
Segment Reporting [Line Items]
Intersegment revenues	(42)	(37)	(122)	(128)
Clean Air Division | Operating Segments
Segment Reporting [Line Items]
Revenues from external customers	1,602	1,495	5,052	4,589
EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests	104	100	328	300
Total assets	3,008	2,912	3,008	2,912
Clean Air Division | Operating Segments | Intersegment Revenues
Segment Reporting [Line Items]
Intersegment revenues	14	11	42	53
Ride Performance Division | Operating Segments
Segment Reporting [Line Items]
Revenues from external customers	461	457	1,480	1,327
EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests	(5)	7	8	52
Total assets	1,079	1,100	1,079	1,100
Ride Performance Division | Operating Segments | Intersegment Revenues
Segment Reporting [Line Items]
Intersegment revenues	16	18	45	46
Aftermarket | Operating Segments
Segment Reporting [Line Items]
Revenues from external customers	309	322	951	967
EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests	45	50	130	146
Total assets	885	864	885	864
Aftermarket | Operating Segments | Intersegment Revenues
Segment Reporting [Line Items]
Intersegment revenues	12	8	35	29
Other
Segment Reporting [Line Items]
Revenues from external customers	0	0	0	0
EBIT, Earnings (loss) before interest expense, income taxes, and noncontrolling interests	(40)	(23)	(132)	(216)
Total assets	0	0	0	0
Other | Intersegment Revenues
Segment Reporting [Line Items]
Intersegment revenues	$ 0	$ 0	$ 0	$ 0