Wal-Mart Stores, Inc. is engaged in the operation of retail, wholesale and other units in various formats around the world. The Company offers an assortment of merchandise and services at everyday low prices (EDLP). The Company's operations are conducted in three segments: Walmart U.S., Walmart International and Sam's Club. The Walmart U.S. segment operates retail stores in all 50 states in the United States, Washington D.C. and Puerto Rico, with three primary store formats, as well as digital retail. The Walmart International segment consists of operations in 26 countries outside of the United States and includes numerous formats divided into three main categories: retail, wholesale and other. The Sam's Club consists of membership-only warehouse clubs and operates in 48 states in the United States and in Puerto Rico, as well as digital retail.