Acquired Intangible Assets (Notes)

3 Months Ended

Mar. 31, 2014

Acquired Intangible Assets Disclosure [Abstract]

Acquired Intangible Assets

Acquired Intangible Assets

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

	Gross Carrying Amount		Accumulated Amortization			Net
March 31, 2014
Finite-Lived Intangible Assets:
Customer Contracts and Relationships	$	786	$	(690	)	$	96
Trademarks	55		(34		)	21
Patents and Developed Technology	158		(121		)	37
	999		(845		)	154
Indefinite-Lived Intangible Assets:
Vyvx Trade Name	32		—			32
	$	1,031	$	(845	)	$	186
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:
Vyvx Trade Name	32		—			32
	$	1,031	$	(826	)	$	205

Acquired finite-lived intangible asset amortization expense was $19 million for the three months ended March 31, 2014 and $18 million for the three months ended March 31, 2013.

At March 31, 2014, the weighted average remaining useful lives of the Company's acquired finite-lived intangible assets was 2.0 years for customer contracts and relationships, 1.5 years for trademarks and 2.7 years for patents and developed technology.

As of March 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):

2014 (remaining nine months)	$	45
2015	48
2016	31
2017	14
2018	13
2019	3
Thereafter	—
	$	154