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Segment Reporting - Schedule of Segment Reporting Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Segment Reporting Information [Line Items] |  |  |
Total revenues | $ 11,761 | $ 9,903 | $ 9,636
Transaction-based expenses | 2,482 | 1,915 | 2,344
Total revenues, less transaction-based expenses | 9,279 | 7,988 | 7,292
Other operating expenses | 3,329 | 2,810 | 2,530
Depreciation and amortization | 1,537 | 1,215 | 1,031
Acquisition-related transaction and integration costs | 104 | 269 | 93
Total operating expenses | 4,970 | 4,294 | 3,654
Operating income | 4,309 | 3,694 | 3,638
Total other income/(expense), net | (681) | (800) | (1,830)
Income before income tax expense | 3,628 | 2,894 | 1,808
Exchanges |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 7,441 | 6,355 | 6,415
Transaction-based expenses | 2,482 | 1,915 | 2,344
Total revenues, less transaction-based expenses | 4,959 | 4,440 | 4,071
Other operating expenses | 1,063 | 1,033 | 968
Depreciation and amortization | 260 | 248 | 240
Acquisition-related transaction and integration costs | 0 | 0 | 1
Total operating expenses | 1,323 | 1,281 | 1,209
Operating income | 3,636 | 3,159 | 2,862
Fixed Income and Data Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 2,298 | 2,231 | 2,092
Transaction-based expenses | 0 | 0 | 0
Total revenues, less transaction-based expenses | 2,298 | 2,231 | 2,092
Other operating expenses | 1,129 | 1,079 | 1,023
Depreciation and amortization | 326 | 341 | 349
Acquisition-related transaction and integration costs | 0 | 0 | 1
Total operating expenses | 1,455 | 1,420 | 1,373
Operating income | 843 | 811 | 719
Mortgage Technology |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 2,022 | 1,317 | 1,129
Transaction-based expenses | 0 | 0 | 0
Total revenues, less transaction-based expenses | 2,022 | 1,317 | 1,129
Other operating expenses | 1,137 | 698 | 539
Depreciation and amortization | 951 | 626 | 442
Acquisition-related transaction and integration costs | 104 | 269 | 91
Total operating expenses | 2,192 | 1,593 | 1,072
Operating income | (170) | (276) | 57
Energy futures and options |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 1,876 | 1,498 | 1,162
Energy futures and options | Exchanges |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 1,876 | 1,498 | 1,162
Energy futures and options | Fixed Income and Data Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Energy futures and options | Mortgage Technology |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Agricultural and metals futures and options |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 257 | 271 | 235
Agricultural and metals futures and options | Exchanges |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 257 | 271 | 235
Agricultural and metals futures and options | Fixed Income and Data Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Agricultural and metals futures and options | Mortgage Technology |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Financial futures and options |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 559 | 460 | 475
Financial futures and options | Exchanges |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 559 | 460 | 475
Financial futures and options | Fixed Income and Data Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Financial futures and options | Mortgage Technology |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Cash equities and equity options |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 2,913 | 2,298 | 2,722
Cash equities and equity options | Exchanges |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 2,913 | 2,298 | 2,722
Cash equities and equity options | Fixed Income and Data Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Cash equities and equity options | Mortgage Technology |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
OTC and other |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 400 | 398 | 429
OTC and other | Exchanges |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 400 | 398 | 429
OTC and other | Fixed Income and Data Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
OTC and other | Mortgage Technology |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Data and connectivity services |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 947 | 933 | 877
Data and connectivity services | Exchanges |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 947 | 933 | 877
Data and connectivity services | Fixed Income and Data Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Data and connectivity services | Mortgage Technology |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Listings |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 489 | 497 | 515
Listings | Exchanges |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 489 | 497 | 515
Listings | Fixed Income and Data Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Listings | Mortgage Technology |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Fixed income execution |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 117 | 124 | 101
Fixed income execution | Exchanges |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Fixed income execution | Fixed Income and Data Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 117 | 124 | 101
Fixed income execution | Mortgage Technology |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
CDS clearing |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 343 | 360 | 305
CDS clearing | Exchanges |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
CDS clearing | Fixed Income and Data Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 343 | 360 | 305
CDS clearing | Mortgage Technology |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Fixed income data and analytics |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 1,177 | 1,118 | 1,098
Fixed income data and analytics | Exchanges |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Fixed income data and analytics | Fixed Income and Data Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 1,177 | 1,118 | 1,098
Fixed income data and analytics | Mortgage Technology |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Other data and network services |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 661 | 629 | 588
Other data and network services | Exchanges |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Other data and network services | Fixed Income and Data Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 661 | 629 | 588
Other data and network services | Mortgage Technology |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Origination technology |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 713 | 694 | 798
Origination technology | Exchanges |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Origination technology | Fixed Income and Data Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Origination technology | Mortgage Technology |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 713 | 694 | 798
Closing solutions |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 202 | 179 | 239
Closing solutions | Exchanges |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Closing solutions | Fixed Income and Data Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Closing solutions | Mortgage Technology |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 202 | 179 | 239
Servicing software |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 848 | 288 | 0
Servicing software | Exchanges |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Servicing software | Fixed Income and Data Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Servicing software | Mortgage Technology |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 848 | 288 | 0
Data and analytics |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 259 | 156 | 92
Data and analytics | Exchanges |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Data and analytics | Fixed Income and Data Services |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | 0 | 0 | 0
Data and analytics | Mortgage Technology |  |  |
Segment Reporting Information [Line Items] |  |  |
Total revenues | $ 259 | $ 156 | $ 92

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