Right Flowchart

I am having a tough time on deciding on the right flowchart for my company. I would like one that could really incorporate documents, describe events and departments and overall show the relationships between departments, processes and workflow. I do not know if this is too much to have on flowcharts but like I said I am having a tough time deciding. The Business Process program that I invested in for our company seems to be helping but I still think that I need to narrow my information down a little so that it will be easier to see the overall goal.