@4luv2cdisney you definitely need to figure out what that pension will pay out. Is there not someone you can contact for more info?
I'm not well versed but for medicare there's part a (hospital stuff) part b (non hospital type stuff) and then you can buy supplemental which will cover things like dental, vision, etc. I believe there's also medicare advantage plans which are private companies basically taking over the government's responsibility to provide you part a and b along with some other stuff. I'm pretty sure all of this depends on your income and state.
For your reduction in expenses start taking a look at things, is the company car you're only car? If you have two now do you need two in the future? For phone service there's plenty of low cost options that may suit your needs.
You should also think about how your tax bill will change, there's a decent chance without really knowing your situation that you will have a much lower effective rate. Your standard deduction is 24k for married filing jointly and capital gains is 0% on the first 80k. This means you can have a significant amount of income without having to pay any taxes on it.
What you think of your income now may not be that accurate either. As an example if a couple made 200k gross you might be saving 15% in a 401k (30k) which leaves you with $170k which you'd pay roughly 17% federal taxes (29k) leaving you with a take home of 141k. The thing to remember here is you don't need 200k to maintain that lifestyle, you'd only need a max of take home 141k and if we said if your effective tax rate shrank down to 12% you'd only need 158k. Long story short your income stream may be 21% less than your working income but would give you the same amount of cash to spend on your expenses at the end of the day.
Take this all with a grain of salt and know that each situation is different. There's plenty of info out there and all it takes is time and effort to plan.