Yes, it is possible to travel abroad with a rented car. However, there are certain restrictions in this regard.
In order to rent a car you must have a valid driving licence. This is the only document that is required to sign the Rental Agreement.
Anyone who has a valid driving licence can rent a car. It is important that the driver's licence held by the customer is valid in all countries through which the rented car will pass.
A credit card is not a prerequisite for renting a car. The rental fee can be paid in cash or by bank transfer (in advance).