After 1 year, 2 weeks vacation.
After 5 years, 3 weeks
After 10 years, 4 weeks
After 20 years, 5 weeks.
Vacation days are allocated monthly, and usable immediately. (5 weeks = 2.09 days/month)
Additionally, there are 11 paid holidays, 3 of which may be taken at employees' discretion for birthday, annivarsary, whatever.
Sick leave, short and long term disability, policies, etc., are too long to include here.
Unless you're union or a member of a protected class - female, minority, over 40 (YEAH!) or whatever, you can be fired easily in most states. In my company, assuming there's no major downsizing of a department, I've only heard of people being fired for safety, security, or harassment violations, as well as criminal actions.