XML 96 R31.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
REVENUE Shipping and Handling (Policies)
12 Months Ended
Dec. 31, 2019
Income Statement [Abstract]  
Shipping and Handling Cost, Policy [Policy Text Block]
Shipping and handling costs are recognized in net sales when they are billed to the customer. These costs are recognized as a component of selling, general and administrative expenses when WESCO does not bill the customer. WESCO has elected to recognize shipping and handling costs as a fulfillment cost. Shipping and handling costs recorded as a component of selling, general and administrative expenses totaled $71.7 million, $74.1 million and $61.8 million for the years ended December 31, 2019, 2018 and 2017, respectively.