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EARNINGS PER SHARE (Tables) | 12 Months Ended
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Dec. 31, 2023
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted | The following table sets forth the details of basic and diluted earnings per share:
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
(In millions, except per share data) |  |  |  |  |
Net income attributable to WESCO International, Inc. | $ | 765.5 |  |  | $ | 860.5 |  |  | $ | 465.4 |
Less: Preferred stock dividends | 57.4 |  |  | 57.4 |  |  | 57.4 |
Net income attributable to common stockholders | $ | 708.1 |  |  | $ | 803.1 |  |  | $ | 408.0 |
Weighted-average common shares outstanding used in computing basic earnings per share | 51.1 |  |  | 50.7 |  |  | 50.3 |
Common shares issuable upon exercise of dilutive equity awards | 1.2 |  |  | 1.7 |  |  | 1.7 |
Weighted-average common shares outstanding and common share equivalents used in computing diluted earnings per share | 52.3 |  |  | 52.4 |  |  | 52.0 |
Earnings per share attributable to common stockholders |  |  |  |  |
Basic | $ | 13.86 |  |  | $ | 15.83 |  |  | $ | 8.11 |
Diluted | $ | 13.54 |  |  | $ | 15.33 |  |  | $ | 7.84 |

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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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