Provides customers with online shopping for a wide range of inventory items. Retail, clothing, recreational, and home products available. Walmart is a multinational retail corporation that operates a chain of hypermarkets, discount department stores, and grocery stores. Walmart is the world's largest company by revenue, over US$500 billion, according to the Fortune Global 500 list in 2018. It is also the largest private employer in the world with 2.3 million employees.