what is the world's biggest corporation
Retail giant Walmart has a new CEO, Doug McMillon. He faces considerable challenges leading the largest company in the world. Fortune's Brian O'Keefe profiled McMillon in the new Fortune 500 issue. Here are nine facts about the retail company that may surprise you: 1. Walmart earned $485.7 billion in revenue in 2014, which outpaced No. 2 Exxon Mobil by $103 billion.