The biggest part of their business has shifted from computers to phones but I doubt they expect the iPhone to be their biggest product in the future forever, so I don’t think they would pigeonhole themselves when their name and logo is so ubiquitous.
Companies like Apple, Nike, Mercedes, Coca-Cola will never completely change the name (maybe some variations here and there, without touching the core name) simply because the brand is so recognizable. It would be throwing money and image down the drain and it would just cause confusion.
In Germany both are known. Daimler the business, Mercedes the car...
Kinda Apple and iPhone...then Mac (aka Mercedes Benz Trucks?!)
Another interesting case is when HP decided to spin off their PC business: they gave the HP brand to that new company.