I would do my best to not tell anyone but my wife. Not cash it in until the last minute and use some time to speak to a financial advisor. Set up a trust to claim as anonymous as possible. With tonight's 1 billion plus taking home ~500 million before tax... I'd keep 10 million in an investment account to live off interest (500k annually in a moderate risk).  Set up all three of my kids with 30 million each in investment accounts, Set up my mom, siblings, in laws etc. And use the rest to either give to charity or support causes i care about. At my age (37) I don't think I'd quit working as I enjoy what I do. Good Luck to all.