Starwood Hotels & Resorts announced ambitious global expansion plans for its Sheraton and Westin brands. For Sheraton, the company's largest brand, $4 billion in new developments will translate to roughly 50 new hotels in 15 countries over the next three years. Twenty-eight of the new properties are slated for China, doubling the hotel brand's inventory there. In addition to the U.S., new Sheraton properties also are planned for Colombia, India, Russia, Slovakia, Taiwan and Vietnam. The company also plans to open 14 new Westin properties in 2010. While 70 percent of that flag's portfolio currently are in North America, several foreign openings will take place in China, Greece, Japan, India, Mexico and Peru.