Since someone asked, layoff package for US based employees is: I get to work until Jun 22 (30 days notice), after I stop working I get 3 months full salary. I also get 12 months of my IBM health insurance at my current rates, after that I get 12 months of cobra if I still need it. They're also offering free "Career services" which I'm going to take advantage of.
It's not bad as a severance package.