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Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2022
Earnings Per Share [Abstract] |
Schedule of Weighted Average Number of Shares | A reconciliation of basic weighted-average shares outstanding to diluted weighted-average shares outstanding is as follows:
| Three Months Ended March 31, |  |
| 2022 |  | 2021 |  |  |  |
Basic weighted-average shares outstanding | 134.9 |  | 141.1 |  |  |  |
Effect of dilutive securities(1) | 1.8 |  | 2.0 |  |  |  |
Diluted weighted-average shares outstanding(2) | 136.7 |  | 143.1 |  |  |  |
(1)The dilutive effect of outstanding stock options, restricted stock units, performance share units and Coworker Stock Purchase Plan units is reflected in the diluted weighted-average shares outstanding using the treasury stock method. (2)There were fewer than 0.1 million potential common shares excluded from diluted weighted-average shares outstanding for both the three months ended March 31, 2022 and 2021 as their inclusion would have had an anti-dilutive effect.

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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