Carl Douglas McMillon is an American businessman, and the president and chief executive officer (CEO) of Walmart Inc. He sits on the retailer's board of directors. Having first joined the company as a summer associate in high school, he became the company's fifth CEO in 2014. He previously led the company's Sam's Club division, from 2005 to 2009, and Walmart International, from 2009 to 2013.

Sam's West, Inc. is an American chain of membership-only warehouse club retail stores owned and operated by Walmart Inc., founded in 1983 and named after Walmart founder Sam Walton as Sam's Wholesale Club. As of January 31, 2019, Sam's Club ranks second in sales volume among warehouse clubs with $84.3 billion in sales, behind its main rival Costco Wholesale.