haha. You'd have to preemptively sign away all rights and compensation completely before a company would even entertain to accept (much less actually read) a non-solicited idea. Back in my youth, I patented a few things (and promptly lost 2 because of not having the means to defend them) and even did much as what you're looking at doing. Some companies even had forms and addresses to submit ideas. But, after awhile, I found out that those were just dummy boxes. Legally, they couldn't accept them anymore. My business lawyer absolutely forbids us from accepting them. Still, I did manage to sell some patents over the years but you have to be very very careful in how you handle it. HIRE A PATENT LAWYER. If the idea/process is any good, that person pays for themselves many times over. If not, then you're wasting your time and money. Good luck.