Altria (MO -1.28%) is an iconic consumer staples maker that has shifted and changed over the years. Today it is largely a tobacco stock, though it has investments in a beverage maker. Philip Morris International (PM -1.89%) shares some of the storied history of Altria, but the smartest investors know that its business is better. How are Altria and Philip Morris related?Altria's most important cigarette brand is Marlboro. Marlboro has a huge 41% market share in the North American market. Add in the company's ...