Walmart (NYSE: WMT) just delivered a strong fourth-quarter earnings report to kick off the retail earnings season, beating estimates on the top and bottom lines.

The retail giant flexed its muscles in its core markets, posting mid-teens comparable sales growth in grocery at Walmart U.S. That drove comparable sales up 8.3% and operating income higher in its biggest segment, despite inflationary pressure.

While Walmart is best known as a retail behemoth with the "everyday low prices" promise, the company has reinvented itself in recent years, becoming an omnichannel by adding grocery pickup stations, launching the new Walmart+ membership program, and building out an advertising business.

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Source Fool.com