In all cash deals like this, is there just a bank wire transfer that's made in the purchase amount from one company's account to the other's once everything has been approved and the deal has closed?
Giarc's story is the confirmation process, likely being chased down by the back office at the bank as they go through the various procedures that minimize fraud and mistakes involved when moving large sums of cash.
If FX is involved, then they'll likely need to purchase the sum in a different currency (if they do not already have cash in that currency) and use the result to settle in another bank account. For example, an American company purchases 15 million euro to settle in a German bank account that belongs to the purchased.
The end result was a balance somewhere in the order of $1.5B AUD - the number overflowed the little shaded box for balances.
Perhaps entirely unsurprisingly, the case that this bank statement was being used in? "ATO vs [Client]" (ATO being the Australian Tax Office) for "deficiencies in income declaration"...