Use IBForex or Currency Futures. With currency futures, you need to calculate the entire base value of each future so you have a 1:1 hedge against your USD exposure. Example: 1 EUR future has a total underlying value of approx. 183k USD. It's a lot easier to perform your hedging using IB Forex, there it's 1:1. You can also change the IB base currency in your account to e.g. EUR, CHF etc.