Kraft Heinz announced plans to split into two separately traded companies, reversing its 2015 megamerger, which was orchestrated by billionaire investor Warren Buffett.Kraft Heinz on Tuesday announced that former Kellanova CEO Steve Cahillane will lead the company ahead of its planned split next year.Cahillane will join the Oscar Mayer owner as chief executive on Jan. 1. After Kraft Heinz divides into two publicly traded companies, he will serve as CEO of the business it is calling Global Taste Elevation, w ...