I've read several times in those comments that this is a "decent" severance package. I'm not that familiar with the US legalities and practices, what's conside

I've read several times in those comments that this is a "decent" severance package. I'm not that familiar with the US legalities and practices, what's considered a "good" and "very good" severance package over there, if 16 weeks of base pay + 6 months of health insurance (for the employees and their families btw) is only "decent"? Is it common to get way better? From abroad we think that the severance packages in the US are at the will of the employers and so are usually very bad.