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EARNINGS PER SHARE | 6 Months Ended
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Jun. 30, 2022
Earnings Per Share [Abstract] |
EARNINGS PER SHARE | EARNINGS PER SHARE The computation of basic and diluted earnings per share for Net income attributable to Wabtec shareholders is as follows:
| Three Months Ended June 30, |  | Six Months Ended June 30,
In millions, except per share data | 2022 |  | 2021 |  | 2022 |  | 2021
Numerator |  |  |  |  |  |  |
Net income attributable to Wabtec shareholders | $ | 166 |  |  | $ | 125 |  |  | $ | 315 |  |  | $ | 237 |
Denominator |  |  |  |  |  |  |
Weighted average shares outstanding - basic | 181.9 |  |  | 188.6 |  |  | 183.2 |  |  | 188.5 |
Effect of dilutive securities: |  |  |  |  |  |  |
Assumed conversion of dilutive stock-based compensation plans | 0.5 |  |  | 0.3 |  |  | 0.5 |  |  | 0.4 |
Weighted average shares outstanding - diluted | 182.4 |  |  | 188.9 |  |  | 183.7 |  |  | 188.9 |
Net income attributable to Wabtec shareholders per common share |  |  |  |  |  |  |
Basic | $ | 0.91 |  |  | $ | 0.66 |  |  | $ | 1.71 |  |  | $ | 1.25 |
Diluted | $ | 0.91 |  |  | $ | 0.66 |  |  | $ | 1.71 |  |  | $ | 1.25 |
Approximately 0.2 million outstanding shares of stock options for the three and six months ended June 30, 2021 were not included in the computation of quarterly diluted earnings per share because their exercise price exceeded the average market price of the Company's common stock.

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