Acquired Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2014

Acquired Intangible Assets Disclosure [Abstract]

Schedule of acquisition-related intangible assets

Identifiable acquisition-related intangible assets as of December 31, 2014 and 2013 were as follows (dollars in millions):

	Gross Carrying Amount		Accumulated Amortization			Net
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
December 31, 2013
Finite-Lived Intangible Assets:
Customer Contracts and Relationships	$	786	$	(678	)	$	108
Trademarks	55		(31		)	24
Patents and Developed Technology	158		(117		)	41
	999		(826		)	173
Indefinite-Lived Intangible Assets:
Trade Name	32		—			32
	$	1,031	$	(826	)	$	205

Schedule of estimated amortization expense of acquired finite-lived intangible asset

As of December 31, 2014, estimated amortization expense for the Company’s finite-lived acquisition-related intangible assets over the next five years and thereafter is as follows (dollars in millions):

2015	$	242
2016	223
2017	208
2018	205
2019	188
Thereafter	333
	$	1,399