I see so many people saying they are staying just for the severance - as if it was a guaranteed thing if they just wait it out. But severance is not an obligation - it is literally the company's good will on whether they will provide it or not during layoffs.
So if Xerox keeps going downhill - which it will - don't be surprised if severance is no longer a thing.
Move on with my life from this place as soon as possible if you are unhappy, don't wait for something that might never come.