EARNINGS PER SHARE (Tables)

9 Months Ended

Sep. 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				Nine Months Ended
	September 30				September 30
(In thousands, except per share data)	2022		2021		2022		2021
Net income attributable to WESCO International, Inc.	$	239,602	$	119,596	$	641,551	$	297,969
Less: Preferred stock dividends	14,352		14,352		43,056		43,056
Net income attributable to common stockholders	$	225,250	$	105,244	$	598,495	$	254,913
Weighted-average common shares outstanding used in computing basic earnings per share	50,815		50,386		50,711		50,252
Common shares issuable upon exercise of dilutive equity awards	1,574		1,677		1,675		1,644
Weighted-average common shares outstanding and common share equivalents used in computing diluted earnings per share	52,389		52,063		52,386		51,896
Earnings per share attributable to common stockholders
Basic	$	4.43	$	2.09	$	11.80	$	5.07
Diluted	$	4.30	$	2.02	$	11.42	$	4.91