Head of Wal-Mart U.S. Bill Simon

Head of Wal-Mart U.S. Bill Simon

Beth Hall/Bloomberg

Prior to joining Wal-Mart as executive vice president of professional services in 2006, Bill Simon held roles at the U.S. restaurant company Brinker International Inc., Diageo Plc, the U.K. spirits maker, Cadbury Schweppes, PepsiCo Inc. and RJR Nabisco.