The world's largest retailer is revising certain product-selling, grant-awarding and supplier policies related to race, gender and sexual orientation.

Saunders said he thinks that once affluent shoppers have given Walmart a try to save money, "I think sometimes ... The stores look better. The customer service is better. "So they've gone there ...

and they are flocking to Walmart to save money. But Walmart has also focused on expanding with people making more than $100,000 a year in recent years — historically Amazon’s main customer base.

Walmart may have started out as a retailer geared to budget-sensitive consumers, but its customer base is continuing to grow, thanks to more affluent shoppers. The retailer saw share gains in new ...