(in millions)

December 31, 2017

$

13,220

Goodwill adjustments related to Quellos ⁽¹⁾

(3

)

March 31, 2018

$

13,217

⁽¹⁾

The decrease in goodwill during the three months ended March 31, 2018 resulted from a decline related to tax benefits realized from tax-deductible goodwill in excess of book goodwill from the acquisition of the fund-of-funds business of Quellos Group, LLC in October 2007 (the “Quellos Transaction”). Goodwill related to the Quellos Transaction will continue to be reduced in future periods by the amount of tax benefits realized from tax-deductible goodwill in excess of book goodwill from the Quellos Transaction. The balance of the Quellos tax-deductible goodwill in excess of book goodwill was approximately $161 million and $168 million at March 31, 2018 and December 31, 2017, respectively.