You win the USA Power ball for $1,000,000,000 what do you buy first?

Probably a house. I'd buy everything needed to live for at least 50 - 60 years without worrying.
And then I'd buy cars and useless shit. I'd donate some of the money as well tho.
Or maybe not donate, but like do something for people with it, since you can't even trust charities anymore.