Is there a report to show specifically what field was changed by a User?

Is there a report to show specifically what field was changed by a User? And perhaps what it was changed from and to?

For example, in the Combined Person & Assignment Form, I am only allowed to change the e-mail address (per internal rules), but once I do, it shows my ID as having last updated the record, no matter which filed my cursor is in on the People screen. I would like to be able to prove to auditors exactly what I changed, if asked.

This is especially difficult when the change is made as a correction, rather than an update.