@tk94110
It seems to me that your original question was not really answered, or rather that TT has a bug that does not allow for correct reporting.
I have exactly the same issue. I bought a house in the US last year and to finance that, I pulled all my financial assets from two other countries that I used to work in. In order to consolidate all money into the one account which had the lowest international transfer cost, I moved enough monies between accounts to inflate the wrong TurboTax calculation to something like 200% of the actual money I owned abroad.
It feels really awkward to submit that to IRS. Makes you think they may come back one day and ask what happened to the unaccounted few hundred thousand you used to have abroad?
The suggested solution above for TT to leave that field blank and let the user fill it correctly would be best.
I did not find a way to correct that entry manually. You would have to print, correct the printout and file via USPS.
