Apple said on Monday it would spend $500bn in US investments in the next four years that will include a giant factory in Texas for artificial intelligence servers and add about 20,000 research and development jobs across the country in that time.That$500bn in expected spending includes everything from purchases from US suppliers to US filming of television shows and movies for its Apple TV+ service. The company declined to say how much of the figure it was already planning to spend with its US supply base, ...