Is there per field descriptions of OTBI tables/subject areas?

Summary:

I have searched Oracle's docs and the internet at large in an attempt to find a description of "Approval Status"."Approval Status Description" field in the "General Ledger - Journals Real Time" subject area. Is there anywhere I can find a description of this exact field?

Content (required):

There seems to be no documentation on any subject areas that included lists and descriptions of tables and fields. The only documentation on the General Ledger - Journals Real Time subject area I can find is this page but that only gives a brief description of the whole subject area, not the specific details that I need.