However, some options that come close include:
* Talking points: This refers to key points to be discussed, but doesn't necessarily encompass the whole document.
* Thesis: This is more appropriate for academic papers or proposals outlining a specific argument.
* Topic: This is simply the subject of the discussion, not the document itself.
If you need a more specific synonym, you could use a phrase like "thought starter" or "talking paper". Ultimately, the best word will depend on the specific context of your document.