Design a template for Policies and Procedures

Design details: I work in the compliance field for a large e - commerce company. I need to create a macro- (at least i think this is what it is) / template on word which the whole company can use to use for a procedure document. I need this document to have default settings so when text is inserted it changes to the default settings of the Master template. for example, font should be Calibri in size 14, spacing between each line should be 1. etc etc . I need advice on the best way to do this, or , alternatively if someone can do this for me. Ideas for the visual style: standard Extra notes: