Even part time employees are eligible as Disney outs the money "upfront" while come corporations only pay up after you earn your degree or after they receive yearly transcripts.
http://www.orlandosentinel.com/business/tourism/os-bz-disney-college-20180822-story.html
http://www.orlandosentinel.com/business/tourism/os-bz-disney-college-20180822-story.html