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Restructuring Charges, Asset Impairments, and Other, Net - Incurred Costs (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended	9 Months Ended
	Sep. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2019	Sep. 30, 2019	Sep. 30, 2018
Restructuring Cost and Reserve [Line Items]
Severance and other charges, net	$ 35		$ 14		$ 118	$ 55
Other non-restructuring asset impairments			2		2	2
Impairment of assets held for sale	8				8
Total asset impairment charges					10
Total restructuring charges, asset impairments, and other	43		16		128	57
Clean Air
Restructuring Cost and Reserve [Line Items]
Severance and other charges, net	6		1		25	19
Other non-restructuring asset impairments			0		1	0
Impairment of assets held for sale	0				0
Total asset impairment charges					1
Total restructuring charges, asset impairments, and other	6		1		26	19
Powertrain
Restructuring Cost and Reserve [Line Items]
Severance and other charges, net	11		0		29	0
Other non-restructuring asset impairments			0		0	0
Impairment of assets held for sale	0				0
Total asset impairment charges					0
Total restructuring charges, asset impairments, and other	11		0		29	0
Ride Performance
Restructuring Cost and Reserve [Line Items]
Severance and other charges, net	15		10		50	27
Other non-restructuring asset impairments			0		0	0
Impairment of assets held for sale	0				0
Total asset impairment charges					0
Total restructuring charges, asset impairments, and other	15		10		50	27
Other restructuring charges	10	$ 8		$ 20	30
Motorparts
Restructuring Cost and Reserve [Line Items]
Severance and other charges, net	2		2		12	6
Other non-restructuring asset impairments			0		1	0
Impairment of assets held for sale	8				8
Total asset impairment charges					9
Total restructuring charges, asset impairments, and other	10		2		21	6
Corporate
Restructuring Cost and Reserve [Line Items]
Severance and other charges, net	1		1		2	3
Other non-restructuring asset impairments			2		0	2
Impairment of assets held for sale	0				0
Total asset impairment charges					0
Total restructuring charges, asset impairments, and other	$ 1		$ 3		$ 2	$ 5