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Goodwill and Other Intangible Assets
 12 Months Ended
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets
The following table details the changes in the carrying amount of goodwill:
 
Engineered Products and Forgings
 
Global Rolled Products
 
Total
Balances at December 31, 2017
 
 
 
 
 
Goodwill
$
4,931

 
$
351

 
$
5,282

Accumulated impairment losses(1)
(719
)
 
(28
)
 
(747
)
Goodwill, net
4,212

 
323

 
4,535

Acquisitions and Divestitures (F)
(1
)
 
—

 
(1
)
Translation and other
(25
)
 
(9
)
 
(34
)
Balances at December 31, 2018
 
 
 
 
 
Goodwill
4,905

 
342

 
5,247

Accumulated impairment losses
(719
)
 
(28
)
 
(747
)
Goodwill, net
4,186

 
314

 
4,500

Divestitures (T)
(13
)
 
—

 
(13
)
Translation and other
4

 
2

 
6

Transfer from Engineered Structures to Aluminum Extrusions
(110
)
 
110

 
—

Balances at December 31, 2019
 
 
 
 
 
Goodwill
4,786

 
454

 
5,240

Accumulated impairment losses
(719
)
 
(28
)
 
(747
)
Goodwill, net
$
4,067

 
$
426

 
$
4,493


(1) 
$25 of fully impaired goodwill related to Latin America Extrusions has been moved to Corporate. See Note B.
In 2017, Arconic recognized an impairment of goodwill in the amount of $719 related to the annual impairment review of the Arconic Forgings and Extrusions business. See Goodwill policy in Note A.
Other intangible assets were as follows:
December 31, 2019
Gross
carrying
amount
 
Accumulated
amortization
 
Intangibles, net
Computer software
$
744

 
$
(659
)
 
$
85

Patents and licenses
95

 
(93
)
 
2

Other intangibles
714

 
(175
)
 
539

Total amortizable intangible assets
1,553

 
(927
)

626

Indefinite-lived trade names and trademarks
32

 
—

 
32

Total other intangible assets
$
1,585

 
$
(927
)
 
$
658

December 31, 2018
Gross
carrying
amount
 
Accumulated
amortization
 
Intangibles, net
Computer software
$
768

 
$
(657
)
 
$
111

Patents and licenses
110

 
(107
)
 
3

Other intangibles
922

 
(149
)
 
773

Total amortizable intangible assets
1,800

 
(913
)
 
887

Indefinite-lived trade names and trademarks
32

 
—

 
32

Total other intangible assets
$
1,832

 
$
(913
)
 
$
919



During the second quarter of 2019, the Company recorded a charge of $197 for intangible asset impairments associated with the Disks long-lived asset group. See Note M for additional details.
Computer software consists primarily of software costs associated with an enterprise business solution within Arconic to drive common systems among all businesses.
Amortization expense related to the intangible assets in the tables above for the years ended December 31, 2019, 2018, and 2017 was $70, $81, and $71, respectively, and is expected to be in the range of approximately $50 to $60 annually from 2020 to 2024.