Segment and Geographic Area Information - Capital Expenditures (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
PY Payable on Assets	$ 59	$ 68	$ 50
Asset Additions	541	410	363
Less CY Payable on Assets	(93)	(59)	(68)
Asset Expenditures	507	419	345
Total Reportable Segments | Clean Air
Segment Reporting Information [Line Items]
PY Payable on Assets	33	43	35
Asset Additions	202	212	217
Less CY Payable on Assets	(38)	(33)	(43)
Asset Expenditures	197	222	209
Total Reportable Segments | Ride Performance
Segment Reporting Information [Line Items]
PY Payable on Assets	22	19	11
Asset Additions	121	145	96
Less CY Payable on Assets	(23)	(22)	(19)
Asset Expenditures	120	142	88
Total Reportable Segments | Aftermarket
Segment Reporting Information [Line Items]
PY Payable on Assets	4	5	4
Asset Additions	38	27	26
Less CY Payable on Assets	(7)	(4)	(5)
Asset Expenditures	35	28	25
Total Reportable Segments | Powertrain
Segment Reporting Information [Line Items]
PY Payable on Assets	0	0	0
Asset Additions	81	0	0
Less CY Payable on Assets	(23)	0	0
Asset Expenditures	58	0	0
Total Reportable Segments | Motorparts
Segment Reporting Information [Line Items]
PY Payable on Assets	0	0	0
Asset Additions	43	0	0
Less CY Payable on Assets	(2)	0	0
Asset Expenditures	41	0	0
Other
Segment Reporting Information [Line Items]
PY Payable on Assets	0	1	0
Asset Additions	56	26	24
Less CY Payable on Assets		0	1
Asset Expenditures	$ 56	$ 27	$ 23