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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 and Effect on Weighted-Average Number of Shares | The following table shows the computation of basic and diluted earnings per share:
| First Quarter of |  |
| 2023 |  | 2022 |  |  |  |
(In millions, except per share amounts) |  |  |  |  |  |  |
Numerator: |  |  |  |  |  |  |
Net income | $ | 128.8 |  |  | $ | 110.3 |  |  |  |  |
Denominator: |  |  |  |  |  |  |
Weighted-average number of common shares used in basic earnings per share | 247.2 |  |  | 250.8 |  |  |  |  |
Effect of dilutive securities | 1.5 |  |  | 2.0 |  |  |  |  |
Weighted-average number of common shares and dilutive potential common shares used in diluted earnings per share | 248.7 |  |  | 252.8 |  |  |  |  |
Basic earnings per share | $ | 0.52 |  |  | $ | 0.44 |  |  |  |  |
Diluted earnings per share | $ | 0.52 |  |  | $ | 0.44 |  |  |  |  |
Antidilutive weighted-average shares (1) | 1.6 |  |  | 0.7 |  |  |  |  |
(1) Antidilutive stock-based awards are excluded from the calculation of diluted shares and diluted earnings per share because their impact would increase diluted earnings per share.

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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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