Get a grip who pays what guys.
At the end of the day it's all the same company so it doesn't matter at all. If Jetstar make money, it's included in the group profit. If Jetstar cost money it's covered from the profits of other entities. Vice versa with Qantas.
It's like seagulls squabbling over a stray chip at the beach.
Jetstar domestic is very profitable as is Qantas domestic historically. Jetstar international and Qantas both lose a bit, but are a necessary evil for domestic feed.
Such is aviation.