A really good idea

I have an amazing idea for something I want Expedia to do that would be environmentally great. I will now, without mentioning the idea, chronicle what happens to the amazing idea as I try to get Expedia to take it up and build it. I hope it will show Expedia's strengths and why it's such a great place to work, but I fear it will end up showing instead all the reasons why I've been thinking I should go work for a startup.

So first steps: I did a one-page writeup on the idea, which I'm going to circulate to some people and hope to get feedback on and ideas to proceed. I'm secretly hoping that next week it will be recognized as such an amazing idea that it burns up the chain of command and gets funded immediately. This is unlikely.