Acquired Intangible Assets

3 Months Ended

Mar. 31, 2012

Acquired Intangible Assets Disclosure [Abstract]

Acquired Intangible Assets

Acquired Intangible Assets

Identifiable acquisition-related intangible assets as of March 31, 2012 and December 31, 2011 were as follows (dollars in millions):

	Gross Carrying Amount		Accumulated Amortization			Net
March 31, 2012
Finite-Lived Intangible Assets:
Customer Contracts and Relationships	$	776	$	(588	)	$	188
Trademarks	55		(7		)	48
Patents and Developed Technology	158		(93		)	65
	989		(688		)	301
Indefinite-Lived Intangible Assets:
Vyvx Trade Name	32		—			32
	$	1,021	$	(688	)	$	333
December 31, 2011
Finite-Lived Intangible Assets:
Customer Contracts and Relationships	$	776	$	(571	)	$	205
Trademarks	55		(3		)	52
Patents and Developed Technology	158		(89		)	69
	989		(663		)	326
Indefinite-Lived Intangible Assets:
Vyvx Trade Name	32		—			32
	$	1,021	$	(663	)	$	358

The gross carrying amount of identifiable acquisition-related intangible assets in the table above is subject to change due to foreign currency fluctuations, as a portion of the Company's identifiable acquisition-related intangible assets are related to foreign subsidiaries.

Acquired finite-lived intangible asset amortization expense was $25 million for the three months endedMarch 31, 2012 and $25 million for the three months endedMarch 31, 2011.

At March 31, 2012, the weighted average remaining useful lives of the Company's acquired finite-lived intangible assets was 2.6 years for customer contracts and relationships, 4.7 years for patents and developed technology and 3.5 years for trademarks.

As of March 31, 2012, 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):

2012 (remaining nine months)	$	66
2013	72
2014	61
2015	45
2016	27
2017	13
Thereafter	17
	$	301