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Earnings Per Share | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share The following table summarizes basic and diluted earnings per share ("EPS"). Basic EPS excludes all potentially dilutive securities and is computed by dividing net income attributable to Crown Holdings by the weighted average number of common shares outstanding during the period. Diluted EPS includes the effect of stock options and restricted stock as calculated under the treasury stock method.
| 2020 |  | 2019 |  | 2018 |  |  |  |
Net income attributable to Crown Holdings | $ | 579 |  |  | $ | 510 |  |  | $ | 439 |  |  |  |  |
Weighted average shares outstanding (in millions): |  |  |  |  |  |  |  |  |
Basic | 133.53 |  |  | 133.89 |  |  | 133.64 |  |  |  |  |
Add: dilutive stock options and restricted stock | 1.03 |  |  | 0.99 |  |  | 0.24 |  |  |  |  |
Diluted | 134.56 |  |  | 134.88 |  |  | 133.88 |  |  |  |  |
Basic EPS | $ | 4.34 |  |  | $ | 3.81 |  |  | $ | 3.28 |  |  |  |  |
Diluted EPS | $ | 4.30 |  |  | $ | 3.78 |  |  | $ | 3.28 |  |  |  |  |
Contingently issuable shares excluded from the computation of diluted earnings per share because the effect would have been anti-dilutive | 0.7 |  |  | 0.8 |  |  | 0.9 |  |  |  |  |

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