Yes. What you would do is sculpt your high resolution model and create a normal map for it. Save the tool so that you can come back to the high resolution version later if you need to. Now switch to a medium subdivision level and delete the higher levels. Create a displacement map. You’ll now have a displacement map for medium frequency details and a normal map for high frequency details.
is it possible to put both the displecment map and a normal map to any low poly model in maya?