Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
net changes in transaction price [Line Items]
Disclosure on Geographic Areas, Description of Revenue from External Customers	$ 758	$ 774	$ 1,572	$ 1,584
Net changes in transaction price	3		11
hedging impact and eliminations	(10)		(20)
Asia [Member]
net changes in transaction price [Line Items]
Disclosure on Geographic Areas, Description of Revenue from External Customers	302		624
Europe [Member]
net changes in transaction price [Line Items]
Disclosure on Geographic Areas, Description of Revenue from External Customers	261		536
Americas [Member]
net changes in transaction price [Line Items]
Disclosure on Geographic Areas, Description of Revenue from External Customers	205		432
All Countries [Domain]
net changes in transaction price [Line Items]
Disclosure on Geographic Areas, Description of Revenue from External Customers	758		1,572
Instrument cluster [Member]
net changes in transaction price [Line Items]
Disclosure on Geographic Areas, Description of Revenue from External Customers	307		633
Audio and infotainment [Member]
net changes in transaction price [Line Items]
Disclosure on Geographic Areas, Description of Revenue from External Customers	194		402
Information displays [Member]
net changes in transaction price [Line Items]
Disclosure on Geographic Areas, Description of Revenue from External Customers	126		266
Hedging impacts	(1)		0
Climate controls [Member]
net changes in transaction price [Line Items]
Disclosure on Geographic Areas, Description of Revenue from External Customers	32		71
Body and security [Member]
net changes in transaction price [Line Items]
Disclosure on Geographic Areas, Description of Revenue from External Customers	30		61
Telematics [Member]
net changes in transaction price [Line Items]
Disclosure on Geographic Areas, Description of Revenue from External Customers	16		34
Other (includes HUD) [Member]
net changes in transaction price [Line Items]
Disclosure on Geographic Areas, Description of Revenue from External Customers	$ 54		$ 105