v3.22.0.1

Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2021
Earnings Per Share [Abstract] |
Schedule of Information Used to Compute Basic and Diluted EPS | The share information used to compute basic and diluted EPS attributable to Arconic common stockholders was as follows (shares in millions):
|  | 2021 |  | 2020 |  | 2019
Weighted-average shares outstanding – basic |  | 109 |  | 109 |  | 109
Effect of dilutive share equivalents: |  |  |  |  |  |
Stock options |  | — |  |  | — |  |  | — |
Stock units |  | — |  |  | — |  |  | — |
Weighted-average shares outstanding – diluted |  | 109 |  | 109 |  | 109
Anti-dilutive share equivalents: |  |  |  |  |  |
Stock units |  | 3.3 |  |  | 2.6 |  |  | — |
Stock options*: |  |  |  |  |  |
In-the-money |  | 0.1 |  |  | — |  |  | — |
Out-of-the-money |  | — |  |  | — |  |  | — |
|  | 3.4 |  |  | 2.6 |  |  | — |
________________ * Stock options are in-the-money when the respective exercise price of each such option is less than the average market price of the Company’s common stock during the applicable period presented. Conversely, stock options are out-of-the-money when the respective exercise price of each such option is more than the average market price of the Company’s common stock during the applicable period presented. Out-of-the-money stock options never result in common share equivalents for purposes of diluted EPS regardless of whether a company generates net income or a net loss. As of December 31, 2020 there were 0.5 million out-of-the money stock options outstanding with a weighted average exercise price of $33.32.

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- 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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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