Both Roth or Traditional withdrawals should generate a 1099R to be issued to you.
1099R's don't have to be mailed until today (1-31-2019), but I would call whoever issued you the money to see if a 1099R is coming.
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If this is just a taxable account you opened somewhere, and any interest or dividends earned is taxed each year, then you will not get a 1099R for taking money out and it does not show on the tax return.
Only sales of assets would be reported in addition to yearly interest and dividends
