as of december 31 , 2015 and 2014 , our accrued interest associated with tax positions was $ 510 million and $ 452 million , respectively . as of december 31 , 2015 and 2014 , $ 49 million and $ 44 million , respectively , of these amounts were related to tax positions of nbcuniversal and nbcuniversal enterprise for which we have been indemnified by ge . during 2015 , the irs completed its examination of our income tax returns for the year 2013