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EARNINGS PER SHARE (Tables) | 6 Months Ended
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Jun. 30, 2022
Earnings Per Share [Abstract] |
Schedule of Computation of 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 |

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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 https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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