Amsterdam - With over 11,000 stores, 270 million customers a week and a turnover of half a trillion dollars, Walmart is without a doubt a powerhouse in the world's retail landscape. Founded in 1962, the company now operates over 11,300 retail units under 58 banners in 27 countries. Judith McKenna, president and CEO at Walmart International, was at this year's World Retail Congress 2019 held in Amsterdam, the Netherlands, talking about her reaction to the recent blocked merger between Walmart's Asda with Sainsbury's, the double-edged sword of digital data and the need for more women in high roles in retail. Here are FashionUnited's three takeaways from McKenna's talk with international broadcast journalist, Naga Munchetty.