IOC chief says Japan set to trim Olympics budget by more than $2 bn

So, they're saving $2B on the over-inflated budget they created, but how much higher is the PREDICTED budget now going to be than the promised one (and we all know the end result will be a whole lot higher), and how many promises will they have broken to get even that?

$2B was too high and Hadid teams were dismissed. Now saving $2B

So $2B - $2B = 0 Does he mean?????