Question: In what state are the headquarters of this American multinational automaker, which has a 50:50 joint venture with Changan Automobile?

full_context: Document 1: Ford Motor Company: The Ford Motor Company (commonly referred to simply as "Ford") is an American multinational automaker headquartered in Dearborn, Michigan, a suburb of Detroit. It was founded by Henry Ford and incorporated on June 16, 1903. The company sells automobiles and commercial vehicles under the Ford brand and most luxury cars under the Lincoln brand. Ford also owns Brazilian SUV manufacturer, Troller, and Australian performance car manufacturer FPV. In the past, it has also produced tractors and automotive components. Ford owns an 8% stake in Aston Martin of the United Kingdom, and a 49% stake in Jiangling of China. It also has a number of joint-ventures, one in China (Changan Ford), one in Taiwan (Ford Lio Ho), one in Thailand (AutoAlliance Thailand), one in Turkey (Ford Otosan), and one in Russia (Ford Sollers). It is listed on the New York Stock Exchange and is controlled by the Ford family, although they have minority ownership (but majority of the voting power).
Document 2: Changan Ford: Changan Ford (officially Changan Ford Automobile Co., Ltd.) is an automotive manufacturing company headquartered in Chongqing, China and a 50:50 joint venture between Changan Automobile and Ford Motor Company. The company's principal activity is the manufacture of Ford brand passenger cars for the Chinese market. The company was formed in Dec. 2012 after the decision to restructure Changan Ford Mazda, whereby Ford and Mazda agreed to work with Changan as separate joint ventures. Currently, Changan Ford's entire production base is the largest manufacturing location outside Detroit, Michigan for Ford. It has plants in Chongqing, Hangzhou & Harbin.
Document 3: FAW-GM: FAW-GM Light Duty Commercial Vehicle (FAW-GM) is a commercial vehicle manufacturing company headquartered in Changchun, China, and a 50:50 joint venture between FAW Group and General Motors. It was founded in 2009 and its activities include the Harbin Light Vehicle factory and FAW Hongta Yunnan Automobile Co Ltd. The plants were named as "FAW Harbin Light Duty Vehicle Co.", "FAW-GM Hongta Yunnan Automobile Manufacturing Co., Ltd." and "Changchun Plant". The company builds "Jie Fang" pickups and light commercial vehicles, with the possibility of building models for GM to sell under their marques.
Document 4: The Henry Ford: The Henry Ford (also known as the Henry Ford Museum of American Innovation and Greenfield Village, and more formally as the Edison Institute) is a large indoor and outdoor history museum complex and a National Historic Landmark in the Detroit suburb of Dearborn, Michigan, USA. The museum collection contains the presidential limousine of John F. Kennedy, Abraham Lincoln's chair from Ford's Theatre, Thomas Edison's laboratory, the Wright Brothers' bicycle shop, the Rosa Parks bus, and many more historical exhibits. It is the largest indoor-outdoor museum complex in the United States and is visited by 1.6 million people each year.
Document 5: History of Ford Motor Company: Ford Motor Company is an American automaker and the world's fifth largest automaker based on worldwide vehicle sales. Based in Dearborn, Michigan, a suburb of Detroit, the automaker was founded by Henry Ford, on June 16, 1903. Ford Motor Company would go on to become one of the largest and most profitable companies in the world, as well as being one of the few to survive the Great Depression. The largest family-controlled company in the world, the Ford Motor Company has been in continuous family control for over 110 years. Ford now encompasses two brands: Ford and Lincoln. Ford once owned 5 other luxury brands: Volvo, Land Rover, Jaguar, Aston Martin and Mercury. Over time, those brands were sold to other companies and Mercury was discontinued.
Document 6: Changan PSA: Changan PSA (officially Changan PSA Automobiles Co., Ltd., informally CAPSA) is an automotive manufacturing company headquartered in Shenzhen, China and a 50:50 joint venture between Changan Automobile and Groupe PSA. Its principal activity is the manufacture and sale of DS Automobiles branded passenger cars in China.
Document 7: General Motors: General Motors Company, commonly known as GM, is an American multinational corporation headquartered in Detroit, Michigan, that designs, manufactures, markets, and distributes vehicles and vehicle parts, and sells financial services. With global headquarters at the Renaissance Center in Detroit, Michigan, United States, GM manufactures cars and trucks in 35 countries. In 2008, 8.35 million GM cars and trucks were sold globally under various brands. GM reached the milestone of selling 10 million vehicles in 2016. Current auto brands are Buick, Cadillac, Chevrolet, GMC, Holden, and Wuling. Former GM automotive brands include McLaughlin, Oakland, Oldsmobile, Pontiac, Hummer, Saab, Saturn, as well as Vauxhall, and Opel, which were bought by Groupe PSA in 2017.
Document 8: Henry Ford II: Henry Ford II (September 4, 1917 – September 29, 1987), sometimes known as "HF2" or "Hank the Deuce", was the eldest son of Edsel Ford and eldest grandson of Henry Ford. He was president of the Ford Motor Company from 1945 to 1960, chairman and chief executive officer (CEO) and chairman for several months thereafter. Notably, under the leadership of Henry Ford II, Ford Motor Company became a publicly traded corporation in 1956. From 1943 to 1950, he also served as president of the Ford Foundation.
Document 9: Ford River Rouge Complex: The Ford River Rouge Complex (commonly known as the Rouge Complex or just The Rouge) is a Ford Motor Company automobile factory complex located in Dearborn, Michigan, along the Rouge River, upstream from its confluence with the Detroit River at Zug Island. Construction began in 1917, and when it was completed in 1928 it had become the largest integrated factory in the world. It served as an inspiration for the Russian GAZ factory in the 1930s, and the Hyundai factory complex in Ulsan, South Korea. Designed by Albert Kahn, it was designated a National Historic Landmark District in 1978 for its architecture and historical importance.
Document 10: Changan Ford Mazda: Changan Ford Mazda (officially Changan Ford Mazda Automobile Co., Ltd.) was an automotive manufacturing company headquartered in Chongqing, China and a joint venture between Changan Automobile, Ford Motor Company and Mazda. Its principal activity was the manufacture and sale of Ford and Mazda branded passenger cars in China.
Document 11: Daimler AG: Daimler AG (] ) is a German multinational automotive corporation. Daimler AG is headquartered in Stuttgart, Baden-Württemberg, Germany. As of 2014, Daimler owns or has shares in a number of car, bus, truck and motorcycle brands including Mercedes-Benz, Mercedes-AMG, Smart Automobile, Detroit Diesel, Freightliner, Western Star, Thomas Built Buses, Setra, BharatBenz, Mitsubishi Fuso, MV Agusta as well as shares in Denza, KAMAZ, Beijing Automotive Group. The luxury Maybach brand was terminated at the end of 2012, but revived in April 2015 as "Mercedes-Maybach" versions of the Mercedes-Benz S-Class and G-Class. In 2016 Daimler sold 3.0 million vehicles. By unit sales, Daimler is the thirteenth-largest car manufacturer and is the largest truck manufacturer in the world. In addition to automobiles, Daimler manufactures buses and provides financial services through its Daimler Financial Services arm. The company is a component of the Euro Stoxx 50 stock market index.
Document 12: Dongfeng Yulon: Dongfeng Yulon Motor Co., Ltd. (Dongfeng Yulon) is an automobile manufacturing company headquartered in Hangzhou, China and a 50:50 joint venture between the Chinese automaker Dongfeng Motor Corporation and the Taiwanese automaker Yulon Motor. Its principal activity is the production, distribution and sale of Luxgen passenger cars in mainland China.
Document 13: Changan Mazda: Changan Mazda (officially Changan Mazda Automobile Co., Ltd.) is an automotive manufacturing company headquartered in Nanjing, China and a 50:50 joint venture between Changan Automobile and Mazda. The company's principal activity is the manufacture of Mazda brand passenger cars for the Chinese market. The company was formed in December 2012 after the decision to restructure Changan Ford Mazda, whereby Ford and Mazda agreed to work with Changan as separate joint ventures.
Document 14: Ford and Johnson Chair Company: The Ford & Johnson Company was founded by John Sherlock Ford and Henry W. Johnson in Columbus, Ohio in 1867 as a chair manufacturing company. In 1868 the company relocated their factory to Michigan City, Indiana. In 1872 the company moved their headquarters to Chicago where they opened a showroom at 302 Wabash Avenue. They became known as J. S. Ford, Johnson & Company.
Document 15: Chrysler: FCA US LLC (also called Fiat Chrysler or Chrysler) ( ) is the American subsidiary of Fiat Chrysler Automobiles N.V., an Italian controlled automobile manufacturer registered in the Netherlands with headquarters in London, U.K., for tax purposes. FCA US is one of the "Big Three" American automobile manufacturers. FCA US has its headquarters in Auburn Hills, Michigan and sells vehicles worldwide under its flagship Chrysler brand, as well as the Dodge, Jeep, and Ram Trucks. Other major divisions include Mopar, its automotive parts and accessories division, and SRT, its performance automobile division.
ground_truth: Michigan