In the airline industry, having domestic and international airlines in the same terminal is known as a “global alliance hub,” Evans said, pointing to London’s
Heathrow Airport and Tokyo’s Narita International Airport as the standard. O’Hare would become the first such global alliance hub in the U.S., Evans said.
I have to believe this is incorrect. Detroit is only one example where this is also the case. There are many others, I am sure.