Winterizing an Inground Pool

I just bought a place and I have a big pool in my back yard. Do I need to keep water in my inground pool for the winter. I emptied it to clean it and will be doing some work on it in the spring. I know it needs to be below the light, intakes, etc., but I live in Michigan and the water level in my area is very low. It's below the pool bottom. The pool's about 11 feet deep, unit. Will any frost or freezing pop the sides out? Thanks

By Ranger