How Much Can I Expect To Receive For Submitting An Idea To A Video Games Company?

Probably very little. The sad truth is that writers or people who just simply have an idea to send in often receive hardly anything simply because they don't have enough experience in the games industry.

If you wish to send in an idea simply because you love video games and don't wish to be paid, then by all means do so. If you are expecting to receive a big reward, then leave it.

Perhaps you should consider doing a little research into the games industry, or perhaps looking for work in that area, as you are far more likely to receive an award this way than you are by simply just sending in an idea.

If you are a writer, then explore areas where you are more likely to get something out of it. Writing is extremely competitive though, and the chances of rewards in any area are slim, but if you enjoy it enough then you'll keep trying.