EARNINGS PER SHARE (Tables)

6 Months Ended

Jun. 30, 2022

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The following table sets forth the details of basic and diluted earnings per share:

	Three Months Ended				Six Months Ended
	June 30				June 30
(In thousands, except per share data)	2022		2021		2022		2021
Net income attributable to WESCO International, Inc.	$	220,706	$	119,195	$	401,949	$	178,373
Less: Preferred stock dividends	14,352		14,352		28,704		28,704
Net income attributable to common stockholders	$	206,354	$	104,843	$	373,245	$	149,669
Weighted-average common shares outstanding used in computing basic earnings per share	50,717		50,243		50,657		50,184
Common shares issuable upon exercise of dilutive equity awards	1,503		1,751		1,572		1,691
Weighted-average common shares outstanding and common share equivalents used in computing diluted earnings per share	52,220		51,994		52,229		51,875
Earnings per share attributable to common stockholders
Basic	$	4.07	$	2.09	$	7.37	$	2.98
Diluted	$	3.95	$	2.02	$	7.15	$	2.89