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Goodwill and Other Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Intangible Assets and Goodwill
The following is a summary of the activity in our goodwill balance by segment (in millions):
Exchanges SegmentFixed Income and Data Services SegmentMortgage Technology SegmentTotal Consolidated
Goodwill balance at January 1, 2024
$8,155 $4,854 $17,544 $30,553 
Acquisitions— — 39 39 
Foreign currency translation(19)(1)(1)(21)
Other activity, net
— — 24 24 
Goodwill balance at December 31, 2024
$8,136 $4,853 $17,606 $30,595 
Acquisitions
1 7 4 12 
Foreign currency translation38 3 (2)39 
Other activity, net
— 1 (1)— 
Goodwill balance at December 31, 2025
$8,175 $4,864 $17,607 $30,646 
The following is a summary of the activity in our other intangible assets balance (in millions):
Other intangible assets balance at January 1, 2024
$17,317 
Acquisitions21 
Foreign currency translation(20)
Amortization of other intangible assets(1,012)
Other intangible assets balance at December 31, 2024
$16,306 
Acquisitions
8 
Foreign currency translation33 
Amortization of other intangible assets(994)
Other intangible assets balance at December 31, 2025
$15,353 
Other intangible assets and the related accumulated amortization consisted of the following (in millions):
As of December 31, 2025
As of December 31, 2024
Gross(1)
Accumulated Amortization(1)
Net Book ValueGrossAccumulated AmortizationNet Book Value
Finite-lived intangible assets:
Customer relationships$10,692 $(3,743)$6,949 $10,874 $(3,299)$7,575 
Technology2,102 (997)1,105 2,549 (1,191)1,358 
Trading products with finite lives216 (170)46 202 (149)53 
Data and databases609 (153)456 746 (230)516 
Trademarks and trade names359 (79)280 386 (87)299 
Other13 (6)7 51 (43)8 
Total finite-lived intangible assets$13,991 $(5,148)$8,843 $14,808 $(4,999)$9,809 
Indefinite-lived intangible assets:
Exchange registrations, licenses and contracts with indefinite lives$6,222 $— $6,222 $6,209 $— $6,209 
Trademarks and trade names with indefinite lives280 — 280 280 — 280 
Other8 — 8 8 — 8 
Total indefinite-lived intangible assets$6,510 $— $6,510 $6,497 $— $6,497 
Total other intangible assets$20,501 $(5,148)$15,353 $21,305 $(4,999)$16,306 
(1) In 2025, we removed $868 million of fully amortized intangible assets.
Schedule of Future Amortization Expense We expect future amortization expense from the finite-lived intangible assets as of December 31, 2025 to be as follows (in millions):
2026$946 
2027901 
2028803 
2029769 
2030744 
Thereafter
4,680 
Total$8,843