Crazy question, but is it possible to reference (import-ish?) only the Detail from another file’s layout page — but not have the Geo that’s viewed through the Detail window?
Sorry if that’s worded horribly, but son is impatiently awaiting dinner 
POST-DINNER EDIT: If I model a Car, and do a separate file with details of just the Wheel, can I somehow Reference that Wheel file’s layout details on the original Car layout sheets?