Yeah so severance is what you get from the company directly.
That counts as your usual pay. So during that time you don't get 'unemployment'. After the severance runs out then you collect unemployment, how much that is varies state to state.
then it's a little different in europe (afaik), you get your severance, it's one time payment but it's usually not that big. and you can right away get your unemployment payment. the length and the amount depends on how much have you worked and the pay you had. the one does not depend on the other.
