| Schedule of Revenue Recognition |
The following table depicts the disaggregation of our revenue according to business line and segment (in millions). Amounts here have been aggregated as they follow consistent revenue recognition patterns, and are consistent with the segment information in Note 15: | | | | | | | | | | | | | | | | | | | | | | | | | | Exchanges Segment | | Fixed Income and Data Services Segment | | Mortgage Technology Segment | | Total Consolidated | Six Months Ended June 30, 2023: | | | | | | | | | Total revenues | $ | 3,214 | | | $ | 1,109 | | | $ | 485 | | | $ | 4,808 | | | Transaction-based expenses | 1,024 | | | — | | | — | | | 1,024 | | | Total revenues, less transaction-based expenses | $ | 2,190 | | | $ | 1,109 | | | $ | 485 | | | $ | 3,784 | | | | | | | | | | | Timing of Revenue Recognition | | | | | | | | | Services transferred at a point in time | $ | 1,263 | | | $ | 229 | | | $ | 148 | | | $ | 1,640 | | | Services transferred over time | 927 | | | 880 | | | 337 | | | 2,144 | | | Total revenues, less transaction-based expenses | $ | 2,190 | | | $ | 1,109 | | | $ | 485 | | | $ | 3,784 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | Exchanges Segment | | Fixed Income and Data Services Segment | | Mortgage Technology Segment | | Total Consolidated | Three Months Ended June 30, 2023: | | | | | | | | | Total revenues | $ | 1,541 | | | $ | 546 | | | $ | 249 | | | $ | 2,336 | | | Transaction-based expenses | 448 | | | — | | | — | | | 448 | | | Total revenues, less transaction-based expenses | $ | 1,093 | | | $ | 546 | | | $ | 249 | | | $ | 1,888 | | | | | | | | | | | Timing of Revenue Recognition | | | | | | | | | Services transferred at a point in time | $ | 628 | | | $ | 106 | | | $ | 81 | | | $ | 815 | | | Services transferred over time | 465 | | | 440 | | | 168 | | | 1,073 | | | Total revenues, less transaction-based expenses | $ | 1,093 | | | $ | 546 | | | $ | 249 | | | $ | 1,888 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | Exchanges Segment | | Fixed Income and Data Services Segment | | Mortgage Technology Segment | | Total Consolidated | Six Months Ended June 30, 2022: | | | | | | | | | Total revenues | $ | 3,247 | | | $ | 1,021 | | | $ | 604 | | | $ | 4,872 | | | Transaction-based expenses | 1,159 | | | — | | | — | | | 1,159 | | | Total revenues, less transaction-based expenses | $ | 2,088 | | | $ | 1,021 | | | $ | 604 | | | $ | 3,713 | | | | | | | | | | | Timing of Revenue Recognition | | | | | | | | | Services transferred at a point in time | $ | 1,197 | | | $ | 159 | | | $ | 270 | | | $ | 1,626 | | | Services transferred over time | 891 | | | 862 | | | 334 | | | 2,087 | | | Total revenues, less transaction-based expenses | $ | 2,088 | | | $ | 1,021 | | | $ | 604 | | | $ | 3,713 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | Exchanges Segment | | Fixed Income and Data Services Segment | | Mortgage Technology Segment | | Total Consolidated | Three Months Ended June 30, 2022: | | | | | | | | | Total revenues | $ | 1,604 | | | $ | 512 | | | $ | 297 | | | $ | 2,413 | | | Transaction-based expenses | 599 | | | $ | — | | | $ | — | | | 599 | | | Total revenues, less transaction-based expenses | $ | 1,005 | | | $ | 512 | | | $ | 297 | | | $ | 1,814 | | | | | | | | | | | Timing of Revenue Recognition | | | | | | | | | Services transferred at a point in time | $ | 563 | | | $ | 83 | | | $ | 128 | | | $ | 774 | | | Services transferred over time | 442 | | | 429 | | | 169 | | | 1,040 | | | Total revenues, less transaction-based expenses | $ | 1,005 | | | $ | 512 | | | $ | 297 | | | $ | 1,814 | |
The components of services transferred over time for each of our segments are as follows: | | | | | | | | | | | | | | | | | | | | | | | | | Six Months Ended June 30, | | Three Months Ended June 30, | | | 2023 | | 2022 | | 2023 | | 2022 | Exchanges Segment: | | | | | | | | Data services revenues | $ | 463 | | | $ | 432 | | | $ | 231 | | | $ | 218 | | Services transferred over time related to risk management of open interest performance obligations | 151 | | | 139 | | | $ | 75 | | | $ | 63 | | | Services transferred over time related to listings | 252 | | | 260 | | | $ | 126 | | | $ | 131 | | | Services transferred over time related to regulatory fees, trading permits, and software licenses | 61 | | | 60 | | | $ | 33 | | | $ | 30 | | Total | $ | 927 | | | $ | 891 | | | $ | 465 | | | $ | 442 | | | | | | | | | | | Fixed Income Data Services Segment: | | | | | | | | | Data services revenues | $ | 864 | | | $ | 843 | | | $ | 434 | | | $ | 421 | | | Services transferred over time related to risk management of open interest performance obligations in our CDS business | 16 | | | 19 | | | $ | 6 | | | $ | 8 | | Total | $ | 880 | | | $ | 862 | | | $ | 440 | | | $ | 429 | | | | | | | | | | | Mortgage Technology Segment: | | | | | | | | | Subscription revenues | $ | 329 | | | $ | 316 | | | $ | 164 | | | $ | 160 | | | Professional service revenues and other | 8 | | | 18 | | | $ | 4 | | | $ | 9 | | | Total | $ | 337 | | | $ | 334 | | | $ | 168 | | | $ | 169 | | | | | | | | | | | Total consolidated revenues transferred over time | $ | 2,144 | | | $ | 2,087 | | | $ | 1,073 | | | $ | 1,040 | |
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