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Acquisitions, Intangible Assets And Goodwill (Tables)
 3 Months Ended
Apr. 05, 2015
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 three months ended
April 5, 2015, were as follows:

 
Aerospace
 
Combat Systems
 
Information Systems and Technology
 
Marine Systems
 
Total Goodwill
December 31, 2014 (a)
$
2,555

 
$
2,750

 
$
6,137

 
$
289

 
$
11,731

Other (b)
58

 
(74
)
 
(16
)
 
—

 
(32
)
April 5, 2015
$
2,613

 
$
2,676

 
$
6,121

 
$
289

 
$
11,699

(a)Goodwill on December 31, 2014, 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
 
April 5, 2015
 
December 31, 2014
Contract and program intangible assets*
$
1,654

$
(1,148
)
$
506

 
$
1,652

$
(1,123
)
$
529

Trade names and trademarks
471

(115
)
356

 
462

(113
)
349

Technology and software
129

(98
)
31

 
130

(97
)
33

Other intangible assets
154

(154
)
—

 
154

(153
)
1

Total intangible assets
$
2,408

$
(1,515
)
$
893

 
$
2,398

$
(1,486
)
$
912

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