Yes, Mars is probably worth 20 billion, thats why Warren may like it, because it is his league(elephant). Why wouldn't Mars want to sell, pocket 20 billion and retain a 10 or 15% equity stake. That would be great, I'd eat even more choclate than I do now. Personally, I have seen written in several reports that Buffett is attracted to the utility business. I think a outfit like Kinder Morgan(KMI) or Williams(WMB) would be up his alley.