I was laid off back in October 2019 and it happened on a Wednesday. I got a 15 min meeting notice with my VP put on my calendar when I got into the office. Telecommuters had their meeting over the phone.
Like another poster said, if you're laid off from UHC, you'll get 2 weeks of pay and will be paid for 40 hours of PTO. Anything over 40 hours is lost and they won't pay it out to you. You'll get a lump sum severance payment based on your years of service and pay grade. However, the severance payment isn't given to you until 2-3 pay periods (4-6 weeks) AFTER your last paycheck which really s—s.
A couple weeks after the layoff, you'll also get a check for any money that was taken out of your paycheck for the employee stock purchase program.
If you're affected by a layoff, apply for your state's unemployment benefits as soon as you can. It's not much but it does help. Also be prepared for the cost of continuing your benefits through COBRA. The cost of COBRA is astronomical!