I think what we've seen happen so far is that as we've applied technology for the picking process in the store, for example, is that job composition has changed but we have about the same number of people.

Looking ahead, we will compete with technology, but win with people. We will be people-led and tech-empowered.

The sales floor probably gets more people. And what we're seeing in supply chain is that it's basically the same number of people with just a whole lot more productivity, but their jobs change.

There are all these things that add up into this business that's Walmart that keeps it really interesting. At the root of it all, though, it's a people business and it's a merchandising business. Today, it's increasingly a technology business. The supply chain is critical, of course, and real estate still plays a key role.

Today, we still have more than 300,000 U.S. associates who were with us since 2015 and are now leading teams, running stores and clubs, and continuing to grow their careers. Their stories are a reminder that when people are given opportunity, they make the most of it - and a culture of opportunity creates a cycle where happy associates lead to happy customers and members, and vice versa.

We need to learn how to become a digital enterprise, but we understand that we're a company made up of 2.2 million associates, and that human interaction in the future will matter.