v3.3.1.900
Intangible Assets and Goodwill Goodwill Rollforward (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Goodwill [Line Items]    
Balance at January 1 $ 656 $ 496
Acquisitions 929 [1] 223 [2]
Foreign currency translation and other (46) (63)
Balance at December 31 1,539 656
Electrical / Electronic Architecture    
Goodwill [Line Items]    
Balance at January 1 648 487
Acquisitions 856 [1] 223 [2]
Foreign currency translation and other (46) (62)
Balance at December 31 1,458 648
Powertrain Systems    
Goodwill [Line Items]    
Balance at January 1 8 9
Acquisitions 0 0
Foreign currency translation and other 0 (1)
Balance at December 31 8 8
Electronics And Safety    
Goodwill [Line Items]    
Balance at January 1 0 0
Acquisitions 73 [1] 0
Foreign currency translation and other 0 0
Balance at December 31 $ 73 $ 0
[1] Primarily attributable to the acquisitions of HellermannTyton Group PLC, Control-Tec LLC and Ottomatika, Inc., as further described in Note 20. Acquisitions and Divestitures.
[2] Primarily attributable to the acquisitions of Antaya Technologies Corporation and Unwired Holdings, Inc., as further described in Note 20. Acquisitions and Divestitures.