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ACQUISITIONS (Details) | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2022 USD ($) numberOfCities countries $ / shares shares | Dec. 31, 2020 USD ($) shares | Nov. 01, 2022 USD ($) | Dec. 31, 2021 shares | Jun. 22, 2021 USD ($) | Jun. 22, 2020 USD ($) $ / shares shares | Dec. 31, 2019 shares
Business Acquisition [Line Items] |  |  |  |  |  |  |
Preferred stock, shares issued | shares | 21,612 | 21,612 |  | 21,612 |  |  | 0
Preferred stock, par value | $ / shares | $ 0.01 |  |  |  |  |  |
Number of Cities in which an Entity Operates | numberOfCities | 300 |  |  |  |  |  |
Anixter International [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Business Acquisition, Effective Date of Acquisition | Jun. 22, 2020 |  |  |  |  |  |
Business Acquisition, Revenue Reported by Acquired Entity for Last Annual Period | $ 8,000,000,000 |  |  |  |  |  |
Common stock, shares issued | shares |  |  |  |  |  | 0.2397 |
Preferred stock, shares issued | shares |  |  |  |  |  | 0.6356 |
Common Stock |  |  |  |  |  | $ 0.01 |
Preferred Stock, Dividend Rate, Percentage | 10.625% |  |  |  |  |  |
Preferred stock, par value | $ / shares |  |  |  |  |  | $ 25,000 |
Business Acquisition, Description of Acquired Entity | Anixter was a leading distributor of network and security solutions, electrical and electronic solutions, and utility power solutions with locations in over 300 cities across approximately 50 countries, and 2019 annual sales of more than $8 billion. |  |  |  |  |  |
Business Combination, Reason for Business Combination | The Merger brought together two companies with highly compatible capabilities and characteristics. The combination of Wesco and Anixter created an enterprise with scale and has afforded the Company the opportunity to digitalize its business and expand its services portfolio and supply chain offerings. |  |  |  |  |  |
Additional countries (in countries) | countries | 50 |  |  |  |  |  |
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual |  | $ 4,500,000,000 |  |  |  |  |
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual |  | 180,000,000 |  |  |  |  |
Business Acquisition, Transaction Costs |  | $ 132,200,000 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  |  |  |  | $ 139,847,000 | $ 114,258,000 |
Anixter International [Member] | Customer-Related Intangible Assets |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 19 years |  |  |  |  |  |
Anixter International [Member] | Cash [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Business Acquisition, Share Price | $ / shares |  |  |  |  |  | $ 72.82 |
Rahi Systems |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Business Acquisition, Effective Date of Acquisition | Nov. 01, 2022 |  |  |  |  |  |
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual | $ 111,500,000 |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets |  |  | $ 41,140,000 |  |  |  |
Rahi Systems | Customer-Related Intangible Assets |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 17 years |  |  |  |  |  |

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