In 2003, Carnival Corporation acquired P&O Princess Cruises plc. It was agreed that P&O Princess Cruises plc would remain a separate company, listed on the London Stock Exchange and retaining its British shareholder body and management team. The company was renamed Carnival plc, with the operations of the two companies merged into one entity. Carnival Corporation and Carnival plc jointly own all the operating companies in the Carnival group. Prior to Carnival Corporation's acquisition, P&O Princess Cruises plc had agreed to a merger with Royal Caribbean Cruises Ltd. The deal unraveled as Carnival Corporation initiated a hostile takeover with improved terms for British shareholders.