Since version 2009.1 Perforce supports a "move" command for when you move or rename files http://kb.perforce.com/article/7/renaming-files.
When renaming a file in IntellIJ, the Perforce change list shows the old filename as a 'delete' and the new filename as an 'add'.
When making the same rename command in more recent versions of the Perforce GUI, it represents the change to old file as a 'move/delete' and the change to the new file as 'move/add'.
Can the Perforce Integration in IntelliJ be configured to use the 'move' command in Perforce, rather than delete/add?
Using 'move' instead allows you to see the rename change when viewing the new file's history, as well as the changes to the old file.