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

Invention is not enough. Tesla invented the electric power we use, but he struggled to get it out to people. You have to combine both things: invention and innovation focus, plus the company that can commercialize things and get them to people.

The only thing I really think about is: How are we making decisions and getting things done such that Walmart is succeeding and creating value 50 years from now?

Customers want to save money and time and have the broadest assortment of items, and we think that by bringing e-commerce and digital capabilities together with the stores, we can do things that a pure e-commerce player can't.

It was always the plan to bring things together, but just like the structure, it needed to be separate for a while for good reasons. We couldn't pick at store level the full Supercenter for a while. It's a lot harder to receive an e-commerce order and pick a toy at Christmas on time than it is to pick the strawberries every day, because you know where they are.

If you're going to succeed, you need a vision, one that's affordable, practical, and fills a customer need. Then, go for it. Don't worry too much about the details. Don't second-guess your creativity. Avoid overanalyzing the new project's potential. Most importantly, don't strategize about the long term too much.