Intangible Assets and Goodwill (Tables)

12 Months Ended

Dec. 31, 2015

Schedule of Acquired Finite and Infinite-Lived Intangible Assets and Goodwill by Major Class

The changes in the carrying amount of intangible assets and goodwill were as follows as of December 31, 2015 and 2014. See Note 20. Acquisitions and Divestitures for a further description of the goodwill and intangible assets resulting from Delphi's acquisitions in 2015 and 2014.



		As of December 31, 2015						As of December 31, 2014
	Estimated Useful Lives	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
	(Years)	(in millions)						(in millions)
Amortized intangible assets:
Patents and developed technology	6-15	$	745	$	279	$	466	$	633	$	229	$	404
Customer relationships	4-14	861		171		690		394		143		251
Trade names	5-20	105		30		75		99		26		73
Total		1,711		480		1,231		1,126		398		728
Unamortized intangible assets:
In-process research and development	—	24		—		24		—		—		—
Trade names	—	128		—		128		—		—		—
Goodwill	—	1,539		—		1,539		656		—		656
Total		$	3,402	$	480	$	2,922	$	1,782	$	398	$	1,384

Schedule of Finite-Lived Intangible Assets Amortization Expense

Estimated amortization expense for the years ending December 31, 2016, 2017, 2018, 2019 and 2020 is presented below:



	Year Ending December 31,
	2016		2017		2018		2019		2020
	(in millions)
Estimated amortization expense	$	136	$	134	$	129	$	117	$	116

Schedule of Gross Carrying Amounts of Intangible Assets and Goodwill

A roll-forward of the gross carrying amounts of intangible assets for the years ended December 31, 2015 and 2014 is presented below.



	2015			2014
	(in millions)
Balance at January 1	$	1,782		$	1,516
Acquisitions (1)	1,701			384
Foreign currency translation and other	(81		)	(118		)
Balance at December 31	$	3,402		$	1,782

Schedule of Accumulated Amortization of Intangible Assets and Goodwill

A roll-forward of the accumulated amortization for the years ended December 31, 2015 and 2014 is presented below:



	2015			2014
	(in millions)
Balance at January 1	$	398		$	322
Amortization	93			94
Foreign currency translation and other	(11		)	(18		)
Balance at December 31	$	480		$	398

Schedule of Goodwill

A roll-forward of the carrying amount of goodwill, by operating segment, for the years ended December 31, 2015 and 2014 is presented below:



	Electrical/Electronic Architecture			Powertrain Systems			Electronics and Safety		Total
	(in millions)
Balance at January 1, 2014	$	487		$	9		$	—	$	496
Acquisitions (1)	223			—			—		223
Foreign currency translation and other	(62		)	(1		)	—		(63		)
Balance at December 31, 2014	$	648		$	8		$	—	$	656
Acquisitions (2)	$	856		$	—		$	73	$	929
Foreign currency translation and other	(46		)	—			—		(46		)
Balance at December 31, 2015	$	1,458		$	8		$	73	$	1,539