Acquired Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2015

Acquired Intangible Assets Disclosure [Abstract]

Schedule of acquisition-related 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

Schedule of estimated amortization expense of finite-lived acquisition-related intangible assets

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