Retirement tax questions

Did they take any tax withholding out of it?  It will add to your regular income and will push you into a higher tax bracket so don’t be shocked at your tax return.  You will probably owe a lot.  Did you make any non-deductible contributions?  You need to enter the 1099R.  What code is in box 7?  If you have more questions then @dmertz can explain it more.