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REVENUE (Tables) | 12 Months Ended
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Dec. 31, 2018
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue [Table Text Block] | The following tables disaggregate WESCO’s net sales by end market and geography:
| Year Ended December 31,
(In thousands) | 2018 |  | 2017 |  | 2016
Industrial | $ | 2,983,062 |  |  | $ | 2,852,357 |  |  | $ | 2,644,442 |
Construction | 2,684,844 |  |  | 2,546,261 |  |  | 2,482,624 |
Utility | 1,303,697 |  |  | 1,181,704 |  |  | 1,158,651 |
Commercial, Institutional and Government | 1,204,998 |  |  | 1,098,699 |  |  | 1,050,300 |
Total by end market | $ | 8,176,601 |  |  | $ | 7,679,021 |  |  | $ | 7,336,017 |
| Year Ended December 31,
(In thousands) | 2018 |  | 2017 |  | 2016
United States | $ | 6,089,130 |  |  | $ | 5,775,988 |  |  | $ | 5,635,803 |
Other (1) | 2,087,471 |  |  | 1,903,033 |  |  | 1,700,214 |
Total by geography | $ | 8,176,601 |  |  | $ | 7,679,021 |  |  | $ | 7,336,017 |
(1) | Other primarily includes net sales originating in Canada.

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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