You do not "list" being retired anywhere--unless you want to use that word for "occupation."
If you received Social Security benefits in 2017 you will soon get a SSA1099;
Go to Federal> Wages & Income>>Retirement Plans and Social Security to enter your SSA1099.
If you received income from a pension plan or IRA in 2017, you will receive a 1099R.
Go to Federal> Wages and Income>Retirement Plans and Social Security>IRA 401 k) Pension Plan Withdrawals to enter your
1099R.