Property, Plant and Equipment, net (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Property Plant and Equipment
Total property, plant and equipment, gross	$ 4,259		$ 4,192
Less: accumulated depreciation	(1,657)		(1,513)
Property, plant and equipment, net, excluding tooling	2,602		2,679
Tooling, net of amortization	237		246
Property, plant and equipment, net	2,839		2,925
Capital Expenditures Incurred but Not yet Paid	55		102
Capitalized interest costs	4	$ 5
Land, land use rights and buildings [Member]
Property Plant and Equipment
Total property, plant and equipment, gross	869		860
Machinery and equipment [Member]
Property Plant and Equipment
Total property, plant and equipment, gross	3,056		2,971
Capital leases [Member]
Property Plant and Equipment
Total property, plant and equipment, gross	0		1
Construction in progress [Member]
Property Plant and Equipment
Total property, plant and equipment, gross	$ 334		$ 360