Retirement tax questions

@JohnB5677 Thanks for taking the time to reply.

I realize not that I wasn't clear in my question.  I apologize. 

I do understand that the summary shown includes not just dividends but also interest income, long term capital gains, short term capital gains.  What I meant was that by drilling into the details (by clicking the Edit/Add button) and adding each individual item listed I don't arrive at TurboTax's summary total.  The only way I arrive at that number is if I "double count" 1a & 1b from the 1099-DIVs I have listed.