XML 70 R37.htm IDEA: XBRL DOCUMENT
v3.8.0.1

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 | )

X
- Definition Other Intangible Assets [Text Block] + References No definition available. + Details
Name: | arnc_OtherIntangibleAssetsTextBlock
Namespace Prefix: | arnc_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
Name: | us-gaap_ScheduleOfGoodwillTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration