Which blue chip companies do you think will be trillion dollar companies?

I would like to know what you guys think which blue chip companies will be trillion dollar companies?

For example, BRK.A is about 800 Billion company right now and it is pretty clear it will eventually be a trillion dollar company in a few years, even if Buffett and Munger died.

I'm asking for only blue chips companies and not small/mid cap companies. Even if you have high conviction in those small cap names, it's too hard to predict if it will reach trillion dollar status.