
Photo credit: Stephen Ironside
Though he stepped down as Walmart’s CEO in January of 2026, passing the torch to John Furner, Doug McMillon has cemented his place as one of the all-time heavyweights of the retail industry. McMillon spent more than a decade turning Walmart from a traditional brick-and-mortar chain into a true mega-retailer that operates across multiple channels. He fused e-commerce, automation, and data-driven operations into a single retail behemoth that many say is far more competitive than Amazon.
Much of that was possible only because of McMillon’s sweeping modernization of Walmart’s supply chain, in which he placed greater emphasis on automation, efficiency, and agentic AI. His decision to step down as CEO marks the end of a spectacular career guiding Walmart through the pandemic, supply-chain shocks, inflation, and shifting trade dynamics, all while still delivering growth and stability.

