High income earner taxes

[David Pimenov]

Just generally speaking how much in taxes would someone living in houston, tx have to pay uncle sam if they have about 100 million usd deposited in a chase bank account even if its not for the purpose of accruing interest $$$?  What if they have about almost 750 million usd in a fidelity mutual funds account assuming its a diversified portfolio structured investment?  Even if in both cases the money is just "sitting there", how much might they have to pay in taxes to the irs?  

[Simon W.]

This post has to be a joke. 

You have $1.4B and you cannot afford to didn't hire a tax/CPA advisor, but instead wasting your time on a forum to ask this question?