I want to know the answer to the following question:
What type of belief defines what is a major or minor doctrine?
All the background I'm provided with is that "Various ecumenical movements have attempted cooperation or reorganization of the various divided Protestant denominations, according to various models of union, but divisions continue to outpace unions, as there is no overarching authority to which any of the churches owe allegiance, which can authoritatively define the faith.". Is that enough to answer the question?
Answer: no