Standard HR process - a MR sent to you by your immediate manger with your HRBP. They run through the benefits ane keep it to point. They will send you a summary at end of day and a written notice required by WARN act on March 11th. You are on payroll for 60 days (still have SAP access) and then severance and health care supplement kick in once you sign the docs after termination. You get paid on 2018 bonus and unused vacation ( California). Two weeks per year of service for severance is standard for everyone. T5 and above might be a bit higher. Health care suppler paid in a lump sum equivalent to 6 mourns of COBRA.
Remember severance is a contract and a contract if always negotiable. Get legal representation if needed. Know your rights.
Bumped from @XV7vjcP-1bgu for important info.