Acquired Intangible Assets (Notes)

3 Months Ended

Mar. 31, 2015

Acquired Intangible Assets Disclosure [Abstract]

Acquired Intangible Assets

Acquired Intangible Assets

Identifiable acquisition-related intangible assets as of March 31, 2015 and December 31, 2014 were as follows (dollars in millions):

	Gross Carrying Amount		Accumulated Amortization			Net
March 31, 2015
Finite-Lived Intangible Assets:
Customer Contracts and Relationships	$	1,975	$	(789	)	$	1,186
Trademarks	55		(48		)	7
Patents and Developed Technology	230		(140		)	90
	2,260		(977		)	1,283
Indefinite-Lived Intangible Assets:
Trade Name	15		—			15
	$	2,275	$	(977	)	$	1,298
December 31, 2014
Finite-Lived Intangible Assets:
Customer Contracts and Relationships	$	1,977	$	(741	)	$	1,236
Trademarks	115		(47		)	68
Patents and Developed Technology	228		(133		)	95
	2,320		(921		)	1,399
Indefinite-Lived Intangible Assets:
Trade Name	15		—			15
	$	2,335	$	(921	)	$	1,414

Acquired finite-lived intangible asset amortization expense was $56 million for the three months ended March 31, 2015 and $19 million for the three months ended March 31, 2014.

At March 31, 2015, the weighted average remaining useful lives of the Company's acquired finite-lived intangible assets was 6.6 years for customer contracts and relationships, 0.5 years for trademarks and 3.8 years for patents and developed technology.

As of March 31, 2015, estimated amortization expense for the Company’s finite-lived acquisition-related intangible assets over the next five years is as follows (dollars in millions):

2015 (remaining nine months)	$	171
2016	212
2017	196
2018	193
2019	181
2020	166
Thereafter	164
	$	1,283