Employee Separation Actions and Exit and Disposal Activities (Details) $ in Millions	3 Months Ended
	Mar. 31, 2019 USD ($)
Operating Segments [Member] | Automotive
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 291
Restructuring Reserve, Accrual Adjustment	267
Payments for Restructuring	(136)
Restructuring Reserve, Foreign Currency Translation Gain (Loss)	(8)
Restructuring Reserve	414
Global Redesign [Member] | Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	251
Global Redesign [Member] | Pension Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	13
Minimum [Member] | Global Redesign [Member] | Accelerated depreciation, separations, and payments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	3,000
Maximum [Member] | Global Redesign [Member] | Accelerated depreciation, separations, and payments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	$ 3,500