fake_lion
2 billion??!?!?!? As cash, it would be pretty impossible. And as assets/money in bank, it would be very difficult or impossible to actually make it his own. Maybe he could get some some millions that are in cash/precious metals and liquid assets, but billions, no way. Besides, there' just no way he could actually find all that money by raiding some Yakuza.
Where did he get this 2 billion dollars, or where did he put it. I know you said he stole it, but that's uuhh well, a massive plot hole, my guy. Absolutely no context. Is there no one going to question the extreme amount of money going missing, and if he did put it in a bank account, I'm 99.98% sure, someone would notice.