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Goodwill and Other Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Changes in Carrying Amount of Goodwill
The following table details the changes in the carrying amount of goodwill:
 
 
Engineered
Products
and
Solutions
Global
Rolled
Products
Transportation
and
Construction
Solutions
Corporate*
Total
Balances at December 31, 2015
 
 
 
 
 
Goodwill
$
4,660

$
201

$
111

$
330

$
5,302

Accumulated impairment losses
—

—

(53
)
—

(53
)
 
4,660

201

58

330

5,249

Acquisitions and Divestitures (F)
47

—

—

—

47

Translation and other
(128
)
(20
)
(1
)
1

(148
)
Balances at December 31, 2016
 
 
 
 
 
Goodwill
4,579

181

110

331

5,201

Accumulated impairment losses
—

—

(53
)
—

(53
)
 
4,579

181

57

331

5,148

Impairment (A)
(719
)
—

—

—

(719
)
Translation and other
89

12

3

2

106

Balances at December 31, 2017
 
 
 
 
 
Goodwill
4,668

193

113

333

5,307

Accumulated impairment losses
(719
)
—

(53
)
—

(772
)
 
$
3,949

$
193

$
60

$
333

$
4,535

*
As of December 31, 2017, the amount reflected in Corporate is allocated to Arconic’s three reportable segments ($256 to Engineered Products and Solutions, $59 to Global Rolled Products and $18 to Transportation and Construction Solutions) for purposes of impairment testing (see Goodwill policy in Note A). This goodwill is reflected in Corporate for segment reporting purposes because it is not included in management’s assessment of performance by the three reportable segments.
Other Intangible Assets
Other intangible assets were as follows:
 
December 31, 2017
Gross
carrying
amount
Accumulated
amortization
Computer software
$
789

$
(674
)
Patents and licenses
110

(107
)
Other intangibles
953

(116
)
Total amortizable intangible assets
1,852

(897
)
Indefinite-lived trade names and trademarks
32

—

Total other intangible assets
$
1,884

$
(897
)
December 31, 2016
Gross
carrying
amount
Accumulated
amortization
Computer software
$
755

$
(623
)
Patents and licenses
110

(102
)
Other intangibles
897

(81
)
Total amortizable intangible assets
1,762

(806
)
Indefinite-lived trade names and trademarks
32

—

Total other intangible assets
$
1,794

$
(806
)