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EARNINGS PER SHARE
 12 Months Ended
Dec. 31, 2024
Earnings Per Share [Abstract]  
EARNINGS PER SHARE
Basic earnings per share is computed by dividing net income attributable to common stockholders by the weighted-average number of common shares outstanding during the periods. Diluted earnings per share is computed by dividing net income attributable to common stockholders by the weighted-average common shares and common share equivalents outstanding during the periods. The dilutive effect of common share equivalents is considered in the diluted earnings per share computation using the treasury stock method, which includes consideration of equity awards.
The following table sets forth the details of basic and diluted earnings per share:
 Year Ended December 31,
 202420232022
(In millions, except per share data)  
Net income attributable to WESCO International, Inc.$717.6 $765.5 $860.5 
Less: Preferred stock dividends57.4 57.4 57.4 
Net income attributable to common stockholders$660.2 $708.1 $803.1 
Weighted-average common shares outstanding used in computing basic earnings per share
49.8 51.1 50.7 
Common shares issuable upon exercise of dilutive equity awards0.8 1.2 1.7 
Weighted-average common shares outstanding and common share equivalents used in computing diluted earnings per share
50.6 52.3 52.4 
Earnings per share attributable to common stockholders 
Basic$13.26 $13.86 $15.83 
Diluted$13.05 $13.54 $15.33 
The computation of diluted earnings per share attributable to common stockholders excludes stock-based awards that would have had an antidilutive effect on earnings per share. For the years ended December 31, 2024, 2023, and 2022, there were approximately 0.2 million, 0.2 million, and 0.1 million antidilutive stock-based awards, respectively.