Re: the New York State form IT-201, New York Subtractions, line 29 "Pension and Annuity Income Exclusion" ---does the $20,000 apply to my Traditional IRA distribution?

You can exclude up to $20,000 from a traditional IRA distribution if you were more than 59.5 years old before 1/1/2017. The only restriction is you cannot exclude payments made from contributions after you retired.