How to describe without loosing ownership of idea

I have an idea that I want to develop and build -but because it's not already out there in the form I plan to deliver - how can I share to get the support ($ and builders, etc). It's a really good receipe - it brings many things together in one place. My existing hurdles at the moment - funding and the right developers - which wouldn't likely be so difficult if I could at least describe it safely.