Subject Area Access for OTBI Reporting

I am trying to create a report of all our Department levels and the hierarchy. I am using the Workforce Management - Work Relationship Real Time subject area. I don't see the Organization details under Department, but when I do add the Organization details, it greatly reduces the number of active Departments (going from 10,000+ to 6,000+). Would there be a subject area to use that is organization level that can help with this? It appears the subject areas I have are for workers.