Declared to who? I travel out of the country all the time and I don't recall ever being asked to declare a thing. Coming in you fill out and sign a form that states you have no more than 10,000 dollars in currency.
That's part of the problem, I think. You can't take more than $10,000 in or out without declaring it, but how do you declare that you have it going out?
You've given me homework. I will find out and report back (if I remember by the time I get to work Monday.)
:-)