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EARNINGS PER SHARE (Tables) | 3 Months Ended
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Mar. 31, 2023
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 March 31, |  |
In millions, except per share data | 2023 |  | 2022 |  |  |  |
Numerator |  |  |  |  |  |  |
Net income attributable to Wabtec shareholders | $ | 169 |  |  | $ | 149 |  |  |  |  |
Denominator |  |  |  |  |  |  |
Weighted average shares outstanding - basic | 179.9 |  |  | 184.5 |  |  |  |  |
Effect of dilutive securities: |  |  |  |  |  |  |
Assumed conversion of dilutive stock-based compensation plans | 0.7 |  |  | 0.5 |  |  |  |  |
Weighted average shares outstanding - diluted | 180.6 |  |  | 185.0 |  |  |  |  |
Net income attributable to Wabtec shareholders per common share |  |  |  |  |  |  |
Basic | $ | 0.94 |  |  | $ | 0.80 |  |  |  |  |
Diluted | $ | 0.93 |  |  | $ | 0.80 |  |  |  |  |

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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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