| Schedule of Intangible Assets and Goodwill |
The following is a summary of the activity in our goodwill balance by segment (in millions): | | | | | | | | | | | | | | | | | | | | | | | | | Exchanges Segment | | Fixed Income and Data Services Segment | | Mortgage Technology Segment | | Total Consolidated | Goodwill balance at January 1, 2023 | $ | 8,134 | | | $ | 4,850 | | | $ | 8,127 | | | $ | 21,111 | | | Acquisitions | — | | | — | | | 9,417 | | | 9,417 | | | | | | | | | | | Foreign currency translation | 21 | | | 3 | | | — | | | 24 | | Other activity, net | — | | | 1 | | | — | | | 1 | | Goodwill balance at December 31, 2023 | $ | 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 | |
The following is a summary of the activity in our other intangible assets balance (in millions): | | | | | | Other intangible assets balance at January 1, 2023 | $ | 13,090 | | | Acquisitions | 4,953 | | | | | Foreign currency translation | 21 | | | Amortization of other intangible assets | (749) | | Other activity, net | 2 | | Other intangible assets balance at December 31, 2023 | $ | 17,317 | | Acquisitions | 21 | | | | | Foreign currency translation | (20) | | | Amortization of other intangible assets | (1,012) | | | | Other intangible assets balance at December 31, 2024 | $ | 16,306 | |
Other intangible assets and the related accumulated amortization consisted of the following (in millions): | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As of December 31, 2024 | | As of December 31, 2023 | | Gross | | Accumulated Amortization | | Net Book Value | | Gross | | Accumulated Amortization | | Net Book Value | | Finite-lived intangible assets: | | | | | | | | | | | | | Customer relationships | $ | 10,874 | | | $ | (3,299) | | | $ | 7,575 | | | $ | 10,870 | | | $ | (2,641) | | | $ | 8,229 | | | Technology | 2,549 | | | (1,191) | | | 1,358 | | | 2,497 | | | (934) | | | 1,563 | | | Trading products with finite lives | 202 | | | (149) | | | 53 | | | 205 | | | (141) | | | 64 | | | Data and databases | 746 | | | (230) | | | 516 | | | 745 | | | (170) | | | 575 | | | Trademarks and trade names | 386 | | | (87) | | | 299 | | | 386 | | | (67) | | | 319 | | | Other | 51 | | | (43) | | | 8 | | | 51 | | | (42) | | | 9 | | | Total finite-lived intangible assets | 14,808 | | | (4,999) | | | 9,809 | | | 14,754 | | | (3,995) | | | 10,759 | | | Indefinite-lived intangible assets: | | | | | | | | | | | | | Exchange registrations, licenses and contracts with indefinite lives | 6,209 | | | — | | | $ | 6,209 | | | 6,223 | | | — | | | 6,223 | | | Trademarks and trade names with indefinite lives | 280 | | | — | | | $ | 280 | | | 280 | | | — | | | 280 | | | In-process research and development | — | | | — | | | $ | — | | | 47 | | | — | | | 47 | | | Other | 8 | | | — | | | $ | 8 | | | 8 | | | — | | | 8 | | | Total indefinite-lived intangible assets | 6,497 | | | — | | | 6,497 | | | 6,558 | | | — | | | 6,558 | | | Total other intangible assets | $ | 21,305 | | | $ | (4,999) | | | $ | 16,306 | | | $ | 21,312 | | | $ | (3,995) | | | $ | 17,317 | |
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