Lenovo acquired IBM's personal computer business in 2005 in order to globalize and expand beyond its success in China. This gave Lenovo the ThinkPad and ThinkCentre brands to leverage. However, it also introduced challenges in merging cultures and establishing Lenovo's brand identity globally against strong competitors like HP and Dell. Lenovo addressed this by focusing on a master Lenovo brand, restructuring to integrate IBM and Lenovo teams, and a phased branding strategy that transitioned awareness from IBM/ThinkPad to the Lenovo brand over time. By 2014, Lenovo had become the largest personal computer manufacturer in the world with 19.2% of the global market.