The companies are teaming up, in part, to expand their payment network. Discover is the smallest of the four U.S.-based payment networks, which also include Visa, American Express and Mastercard.
The Atlanta-based nonprofit system now contains 19 hospitals, with the announcement Tuesday that it has taken over University Health Care System, which includes University Hospital in Augusta.
In its first public acknowledgement of a deal that could be worth in the billions of dollars, Microsoft said it is continuing talks with TikTok about a potential takeover of the hugely popular app.