Commitments and Contingencies (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended		12 Months Ended
	Sep. 30, 2018	Mar. 31, 2018	Sep. 30, 2017	Mar. 31, 2014	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2013	Dec. 31, 2003	Dec. 31, 2017
Loss Contingencies [Line Items]
Amount of Bonds Issued by the Charter Township of Van Buren, Michigan								$ 28
Increase in pre-tax income					$ 17
Decrease to selling, general and administrative expenses					10
Other Income			$ 3			$ 8
Transformation Costs	$ 0		(1)		4	(1)
Loss Contingency, Estimate of Possible Loss	93				93				$ 100
Guarantor Obligations, Current Carrying Value	11				11				$ 15
Equity Method Investment, Ownership Percentage									50.00%
Movement in Standard Product Warranty Accrual [Roll Forward]
Product Warranty Accrual, Beginning Balance		$ 49			49	55
Standard and Extended Product Warranty Accrual, Period Increase (Decrease)					14	15
Standard and Extended Product Warranty Accrual, Increase (Decrease) for Preexisting Warranties					(1)	5
Product warranty accrual, specific action increase (decrease)					5	3
Standard and Extended Product Warranty Accrual, Foreign Currency Translation Gain (Loss)					(1)	2
Standard and Extended Product Warranty Accrual, Decrease for Payments					18	29
Product Warranty Accrual, Ending Balance	51		51		51	51
Standard Product Warranty Accrual, Additions from Business Acquisition					1	0
Interiors [Member]
Loss Contingencies [Line Items]
Guarantee for Divested Entities Lease Payments	1				1
HVCC [Member]
Loss Contingencies [Line Items]
Guarantee for Divested Entities Lease Payments	5				5
Minimum [Member]
Loss Contingencies [Line Items]
Estimated Shortfall in Tax Revenues of the Township							$ 25
Maximum [Member]
Loss Contingencies [Line Items]
Estimated Shortfall in Tax Revenues of the Township							$ 36
IRAN, ISLAMIC REPUBLIC OF | Certain HVCC subsidiaries in China [Member]
Loss Contingencies [Line Items]
Revenue from Contract with Customer, Including Assessed Tax				$ 12
Pending Litigation [Member] | BRAZIL | Affiliated Entity [Member]
Loss Contingencies [Line Items]
Loss Contingency Accrual, at Carrying Value	13				13
Loss Contingency, Estimate of Possible Loss	99				99
Pending Litigation [Member] | ARGENTINA | Affiliated Entity [Member]
Loss Contingencies [Line Items]
Loss Contingency Accrual, at Carrying Value	3				3
Loss Contingency, Estimate of Possible Loss	3				3
Recoverable Warranty [Member]
Movement in Standard Product Warranty Accrual [Roll Forward]
Product Warranty Accrual, Beginning Balance		0			0
Product Warranty Accrual, Ending Balance	2				2
HVCC [Member]
Loss Contingencies [Line Items]
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax	$ 1	$ 3	$ 0		$ 4	$ 7