REVENUE (Tables)

12 Months Ended

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue [Table Text Block]

The following tables disaggregate WESCO’s net sales by segment and geography for the periods presented:

	Year Ended December 31,
(In thousands)	2020		2019		2018
Electrical & Electronic Solutions	$	5,479,760	$	4,860,541	$	4,878,836
Communications & Security Solutions	3,323,264		909,496		857,481
Utility & Broadband Solutions	3,522,971		2,588,880		2,440,284
Total by segment	$	12,325,995	$	8,358,917	$	8,176,601

	Year Ended December 31,
(In thousands)	2020		2019		2018
United States	$	9,110,453	$	6,234,119	$	6,089,130
Canada	1,892,321		1,647,066		1,647,933
Other International (1)	1,323,221		477,732		439,538
Total by geography (2)	$	12,325,995	$	8,358,917	$	8,176,601

(1)     No individual other international country's net sales are material.

(2)    WESCO attributes revenues from external customers to individual countries on the basis of point of sale.