Retirement tax questions

Thank you, dmertz.  I had intended to proceed as you suggest, but thought the community might suggest another approach or add insight.  I did call the payer and as an explanation they stated they do not calculate taxable amount for anyone in Illinois, nor do they deduct tax withholding for Illinois.  I assume this is because pension income is not taxable in Illinois.  To your point, I do not see how that has any bearing on the entries in Box 2.  I tried to check prior years to see if they have treated Box 2 this way in the past.  Unfortunately I had to attach Copy 2 to the state return so I cannot check it.  Once again,  thank you for taking the time to reply to my question.  If you are on the east coast, Happy Snow Day.