Oh right, well, in marketing and CMK you start in Singapore a lot of the time. All of this year's grads started in Singapore.
After two years of working in P&G, you get access to an open job posting board, where you can apply for a P&G position anywhere in the world.
With that said, they are cutting down on the number of expats (A G Lafley, the CEO said they're sharply decreasing the number of expats, and also upper level managers (albeit not by firing them, which is good)). So, in the future opportunities may not be as good as before, but you should still be able to work in offices around the world
If you work in Australia, then chances are you'd only get sent to Singapore for conferences (once a year) and maybe a trip to NZ for team bonding. If you work in Singapore, it depends on your market. For example, my manager was sent to India and Korea in an 8 week period. Another Aussie was working on the Philipines market, so got to travel there.