In the United States the Doctor of Divinity (DD) is usually awarded as an honorary degree. There is no system of "higher doctorates" in the U.S., so the highest earned degrees in academic Theology are the Doctor of Philosophy, Doctor of Theology (ThD) or Doctor of Sacred Theology. (Wikipedia) For the source and more detailed information concerning your request, click on the related links section (Answers.com) indicated at the bottom of this answer box.