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REVENUE (Tables) | 12 Months Ended
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Dec. 31, 2024
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 millions) | 2024 |  | 2023 |  | 2022
Electrical & Electronic Solutions | $ | 8,546.8 |  |  | $ | 8,610.3 |  |  | $ | 8,823.3 |
Communications & Security Solutions | 7,537.0 |  |  | 7,152.2 |  |  | 6,401.5 |
Utility & Broadband Solutions | 5,735.0 |  |  | 6,622.7 |  |  | 6,195.3 |
Total by segment | $ | 21,818.8 |  |  | $ | 22,385.2 |  |  | $ | 21,420.1 |
| Year Ended December 31,
(In millions) | 2024 |  | 2023 |  | 2022
United States | $ | 16,189.8 |  |  | $ | 16,609.1 |  |  | $ | 15,857.3 |
Canada | 2,940.1 |  |  | 2,968.2 |  |  | 3,021.4 |
Other International(1) | 2,688.9 |  |  | 2,807.9 |  |  | 2,541.4 |
Total by geography(2) | $ | 21,818.8 |  |  | $ | 22,385.2 |  |  | $ | 21,420.1 |
(1) No individual country’s net sales are greater than 10% of total net sales. (2) Wesco attributes revenues from external customers to individual countries on the basis of point of sale.

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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://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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