This can be a net debit balance when the total debits are greater, or a net credit balance when the total credits are greater.
By convention, one of these is the normal balance type for each account according to its category.
Asset and expense accounts have a normal debit balance, while liability, equity and income accounts have a normal credit balance.
[1] Generally a normal balance is shown in statements as a positive number.
It would properly be reported as an asset, and possibly written off to a zero balance if the overpayment is not recoverable.