We get the discount if shipping from the US to an international location.
In almost all cases, that is not true in reverse. For example, if I have someone ship something to me from Canada using my account, I don't get the discount. (I suspect a Canadian employee would get the discount in that case. Though that is not the question you are asking.)
I did get a discount when shipping my stuff from our hub in China back to the USA. But I was at the hub myself.
I was told many years ago that I could get the discount in Australia only if I took the package to the FedEx location at the airport in Sydney. But I don't know if that would or would not be true for a non FedEx employee. I didn't actually ship from there though, so I never saw a bill to verify what I was told.