v3.2.0.727
Restructuring Restructuring Costs by Segment (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Restructuring Cost and Reserve [Line Items]        
Restructuring $ 17 $ 54 $ 33 $ 75
Electrical / Electronic Architecture        
Restructuring Cost and Reserve [Line Items]        
Restructuring 5 14 9 27
Powertrain Systems        
Restructuring Cost and Reserve [Line Items]        
Restructuring 8 37 14 39
Electronics And Safety        
Restructuring Cost and Reserve [Line Items]        
Restructuring $ 4 $ 3 $ 10 $ 9