What would you do if you won $1 trillion?

Set up a charitable foundation. Invest the winnings (around $500 billion after taxes) in safe and sustainable investments to grow the total wealth available. Go around looking for good causes that need significant monetary support. Do what I could to make the world a better place for as many people as possible.

Pay off all our debts, of course, plus the outstanding debts of pretty much all my friends and family (fuck my brother, though — he can die poor). Move somewhere desirable (New Zealand, maybe) and run the operation from there.