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Goodwill and Other Intangible Assets (Tables)
 6 Months Ended
Jun. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedules of Intangible Assets and Goodwill
The following is a summary of the activity in our goodwill balance by segment for the six months ended June 30, 2024 (in millions):
Exchanges SegmentFixed Income and Data Services SegmentMortgage Technology SegmentTotal Consolidated
Goodwill balance at December 31, 2023
$8,155 $4,854 $17,544 $30,553 
Acquisition— — 5 5 
Foreign currency translation(8)(1)— (9)
Other activity, net
— — 4 4 
Goodwill balance at June 30, 2024
$8,147 $4,853 $17,553 $30,553 

The following is a summary of the activity in our other intangible assets balance for the six months ended June 30, 2024 (in millions):
Other intangible assets balance at December 31, 2023
$17,317 
Acquisition
3 
Foreign currency translation
(9)
Amortization of other intangible assets
(506)
Other intangible assets balance at June 30, 2024
$16,805