They have a 1 billion Revenue and a profit of 400 million which means that their cost is about 600 million USD.
But that is (I expect) operating profit. They may have spent quite a bit of money getting to that position - and even if they didn't, Microsoft certainly will / are.
I don't think Microsoft will need to cut costs in development areas though. They have such a large, sprawling empire they could cut a billion simpy buy changing the packaging on the disks the ship for Microsoft office! (OK - I am exagerating, but only a bit)
Microsoft will not leave this project totally underfunded, I am quite sure.