Many people choose to be buried in their country of origin, so this scenario is becoming increasingly common in various parts of the United States.
The best idea is to immediately contact your Funeral Director - he or she is experienced in dealing with this sort of a situation. From there, you can plan whether or not there are to be local services, embalming or cremation and how to transport remains to their final resting place out of the country. Generally, a Funeral Provider in the destination country will also be needed to assist in the final disposition of your loved one.
It can be a tremendous amount of legwork to fulfill the final wishes of your loved one – it makes sense to plan ahead for such a final wish – but it can be an emotionally satisfying decision for all concerned.