There are several ways to take money for an international trip. Know any of them:
PAPER MONEY (Money)
You can head to a currency exchange house and purchase the local currency of the destination for which you will travel, exchanging reais for the currency of the destination country or for US dollars-which are usually easier to accept in several countries.
You can use your bank card in Brazil on overseas purchases if you have the word "international/International" written on it. To use it, you need to contact your card operator and request to enable the function for overseas purchases.
A practical way to also take money on international travel is by using Travel Money. This is a prepaid card that can be purchased from banks and exchange houses where you can enter credit amounts. It can be used for withdrawals in local currency and debit purchases.