(in millions)

December 31, 2018

$

13,526

Acquisition ⁽¹⁾

990

Goodwill adjustments related to Quellos ⁽²⁾

(5

)

June 30, 2019

$

14,511

⁽¹⁾

^{The increase in goodwill during the six months ended June 30, 2019 resulted from the $990 million of goodwill associated with the eFront Transaction, which closed on May 10, 2019.  See Note 3, Acquisition, for information on the eFront Transaction.}

⁽²⁾

^{The decrease in goodwill during the six months ended June 30, 2019 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 $121 million and $137 million at June 30, 2019 and December 31, 2018, respectively.}