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SEGMENTS AND RELATED INFORMATION
 12 Months Ended
Dec. 31, 2016
Segment Reporting [Abstract]  
SEGMENTS AND RELATED INFORMATION
SEGMENTS AND RELATED INFORMATION
WESCO provides distribution of product and services through its four operating segments, which have been aggregated as one reportable segment. WESCO has approximately 230,000 unique product stock keeping units and markets more than 1,000,000 products for customers. There were no material amounts of sales or transfers among geographic areas and no material amounts of export sales.
WESCO attributes revenues from external customers to individual countries on the basis of the point of sale. The following table sets forth information about WESCO by geographic area:
 
Net Sales
Year Ended December 31,
 
Long-Lived Assets
December 31,
 
2016
 
 
 
2015
 
 
 
2014
 
 
 
2016
 
2015
 
2014
(In thousands)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
United States
$
5,635,803

 
77
%
 
$
5,665,962

 
75
%
 
$
5,618,240

 
71
%
 
$
123,465

 
$
157,570

 
$
127,670

Canada
1,394,657

 
19
%
 
1,533,705

 
21
%
 
1,899,173

 
24
%
 
60,372

 
63,088

 
80,080

Mexico
62,430

 
1
%
 
70,048

 
1
%
 
95,585

 
1
%
 
227

 
332

 
442

Subtotal North American Operations
7,092,890

 
 
 
7,269,715

 
 
 
7,612,998

 
 
 
184,064

 
220,990

 
208,192

Other International
243,127

 
3
%
 
248,772

 
3
%
 
276,628

 
4
%
 
4,583

 
5,369

 
8,213

Total
$
7,336,017

 
 
 
$
7,518,487

 
 
 
$
7,889,626

 
 
 
$
188,647

 
$
226,359

 
$
216,405


The following table sets forth sales information about WESCO’s sales by product category:
Year Ended December 31,
2016
 
2015
 
2014
(percentages based on total sales)
 
 
 
 
 
General Supplies
40%
 
40%
 
40%
Wire, Cable and Conduit
14%
 
15%
 
16%
Communications and Security
15%
 
15%
 
14%
Electrical Distribution and Controls
11%
 
11%
 
11%
Lighting and Sustainability
12%
 
10%
 
10%
Automation, Controls and Motors
8%
 
9%
 
9%