The company still got $20B of cash(?) in its books, it can pay dividends to its shareholders (investors) and they get their payment. The company can go down the drain afterwards. If it can still make money with its remaining assets that's only a nice small bonus.
So the only ones getting shafted are the employees.
I suppose the firm could simply roll the 20 billion into a long term asset. It’s not a big deal to anyone except employees if the asset never pays out. Departed employees would not be privy to how the money is eventually exited from the now shell company 20 years hence.
So the only ones getting shafted are the employees.