Typically, in a no fault divorce, the marital estate is divided equally. So, your pension retirement would be considered part of the estate. However, the only part your ex could be entitled to receive half of would be the value of it at the time of divorce. If your retirement has increased in value since the divorce, then she wouldn't typically be entitled to half of the increase in value. However, QDRO's are complex issues. Many times, certain assets are traded for other assets or cash at the time of divorce, so your final settlement and order is needed to determine what you all agreed on.