XML 79 R46.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Earnings Per Share (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Earnings Per Share [Abstract] |
Reconciliation of Information Used to Compute Basic and Diluted EPS | The information used to compute basic and diluted EPS attributable to Arconic common shareholders was as follows (shares in millions):
| 2017 | 2016 | 2015
Net loss from continuing operations attributable to Arconic | $ | (74 | ) | $ | (1,062 | ) | $ | (156 | )
Net income from continuing operations attributable to noncontrolling interests | — |  | — |  | (1 | )
Less: preferred stock dividends declared | (53 | ) | (69 | ) | (69 | )
Loss from continuing operations available to Arconic common shareholders | (127 | ) | (1,131 | ) | (226 | )
Income (loss) from discontinued operations after income taxes and noncontrolling interests(1) | — |  | 121 |  | (165 | )
Net loss available to Arconic common shareholders—basic | (127 | ) | (1,010 | ) | (391 | )
Add: interest expense related to convertible notes | — |  | — |  | — |
Add: dividends related to mandatory convertible preferred stock | — |  | — |  | — |
Net loss available to Arconic common shareholders—diluted | $ | (127 | ) | $ | (1,010 | ) | $ | (391 | )
Average shares outstanding—basic | 451 |  | 438 |  | 420 |
Effect of dilutive securities: |  |  |
Stock options | — |  | — |  | — |
Stock and performance awards | — |  | — |  | — |
Mandatory convertible preferred stock | — |  | — |  | — |
Convertible notes | — |  | — |  | — |
Average shares outstanding—diluted | 451 |  | 438 |  | 420 |
(1) | Calculated from the Statement of Consolidated Operations as Income (loss) from discontinued operations after income taxes less Net income from discontinued operations attributable to noncontrolling interests.

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

X
- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration