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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2023
Earnings Per Share [Abstract] |
Basic and Diluted Earnings Per Share | Basic and diluted earnings per share were calculated as follows:
| Three months ended |  | Nine months ended
In millions, except per-share data | September 30, 2023 | September 30, 2022 |  | September 30, 2023 | September 30, 2022
Net income | $ | 105.5 |  | $ | 93.4 |  |  | $ | 312.2 |  | $ | 241.1 |
Weighted average ordinary shares outstanding |  |  |  |  |
Basic | 165.8 |  | 166.5 |  |  | 165.6 |  | 166.4 |
Dilutive impact of stock options, restricted stock units and performance share units | 2.8 |  | 1.8 |  |  | 2.6 |  | 1.8 |
Diluted | 168.6 |  | 168.3 |  |  | 168.2 |  | 168.2 |
Earnings per ordinary share |  |  |  |  |
Basic earnings per ordinary share | $ | 0.64 |  | $ | 0.56 |  |  | $ | 1.89 |  | $ | 1.45 |
Diluted earnings per ordinary share | $ | 0.63 |  | $ | 0.55 |  |  | $ | 1.86 |  | $ | 1.43 |
Anti-dilutive stock options excluded from the calculation of diluted earnings per share | 0.4 |  | 0.7 |  |  | 0.3 |  | 0.5 |

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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 -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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