When one asks if X can "afford" something, they often mean "Would it be a rational deal for X to buy Y", not whether X could scrape and borrow and hedge to come up with the money. One might presume largish companies have some massive amount of cash on hand, but often they don't, or if they do have some cash, it's going to be used for a specific something, perhaps a stock buyback, or in this case, expanded or new theme parks.
So, the real question is whether Disney wants to allocate this much money for football, said briefly, "Can they afford it?".
Their market cap is over $200 billion, which certainly sounds like a lot. Of course, Apple is nearing $3 trillion, so there is that.