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Acquisitions, Intangible Assets And Goodwill (Tables)
 9 Months Ended
Sep. 28, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
Changes In The Carrying Amount Of Goodwill By Reporting Unit
The changes in the carrying amount of goodwill by reporting unit for the nine months ended
September 28, 2014, were as follows:

 
Aerospace
 
Combat Systems
 
Marine Systems
 
Information Systems and Technology
 
Total Goodwill
December 31, 2013 (a)
$
2,741

 
$
2,849

 
$
289

 
$
6,053

 
$
11,932

Other (b)
(104
)
 
(59
)
 
—

 
(13
)
 
(176
)
September 28, 2014
$
2,637

 
$
2,790

 
$
289

 
$
6,040

 
$
11,756

(a)Goodwill on December 31, 2013, in the Information Systems and Technology reporting unit is net of $1,994 of accumulated impairment losses.
(b)Consists primarily of adjustments for foreign currency translation.
Intangible assets
Intangible assets consisted of the following:
 
Gross Carrying Amount
Accumulated Amortization
Net Carrying Amount
 
Gross Carrying Amount
Accumulated Amortization
Net Carrying Amount
 
December 31, 2013
 
September 28, 2014
Contract and program intangible assets*
$
1,790

$
(1,189
)
$
601

 
$
1,626

$
(1,102
)
$
524

Trade names and trademarks
507

(103
)
404

 
487

(118
)
369

Technology and software
130

(92
)
38

 
129

(94
)
35

Other intangible assets
155

(154
)
1

 
155

(154
)
1

Total intangible assets
$
2,582

$
(1,538
)
$
1,044

 
$
2,397

$
(1,468
)
$
929

* Consists of acquired backlog and probable follow-on work and related customer relationships.