One headlight went out, is it simply replacing a bulb or the entire unit? on 1994 Dodge Intrepid

One headlight went out on my Dodge. I do not have the owner's manual. Is it simply a matter of replacing a bulb or do I have to replace the entire headlight unit?

Asked by for the 1994 Dodge Intrepid
should be able to reach behind the assembly and unscrew the plastic part that holds bulb in...dont touch the ne w bulb when replacing. use gloves...