According to the Wall Street Journal, Mariott International is expected to officially announce its plans to double its property in Europe over the few years to come. Currently, the company owns 174 properties in 24 countries in Europe, mostly in large capital cities such as Paris, London, Rome, etc. These properties are operating under various brand names, such as Mariott, Carlton, Renaissance and Ritz. The company is expected to announce its plans on Tuesday, at the Hotel Investment Forum in Berlin.