Intangible Assets

9 Months Ended

Sep. 30, 2013

Intangible Assets

7. Intangible Assets

Intangible assets consisted of the following:

	Gross
(In millions)	Carrying		Accumulated		Net Book
September 30, 2013	Amount		Amortization		Value
Customer related intangible assets	$	2,155	$	634	$	1,521
Acquired software and technology		493		271		222
Trade names		120		36		84
Capitalized software development costs		642		370		272
Purchased software		294		213		81
Total	$	3,704	$	1,524	$	2,180
	Gross
(In millions)	Carrying		Accumulated		Net Book
December 31, 2012	Amount		Amortization		Value
Customer related intangible assets	$	1,695	$	534	$	1,161
Acquired software and technology		378		222		156
Trade names		114		29		85
Capitalized software development costs		667		398		269
Purchased software		325		252		73
Total	$	3,179	$	1,435	$	1,744

The Company estimates that annual amortization expense with respect to acquired intangible assets, which include customer related intangible assets, acquired software and technology, and trade names, will be approximately $210 million in 2013, approximately $200 million in 2014, approximately $190 million in 2015, approximately $150 million in 2016 and approximately $140 million in 2017. Annual amortization expense in 2013 with respect to capitalized and purchased software is estimated to approximate $110 million.