It doesn't for me (although it does include it in parentheses after the real name), so I'm going to hope this is only an 'only in the US' change.
Interesting that he changed the name to that of the entire continent, so Mexicans and Venezuelans can feel part of it.
"Britain" is widely used to refer to the UK, but Great Britain is the physical land mass which excludes Northern Ireland, so there is rarely confusion.