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Revenues - Transaction and Relationship Revenue (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 1,898 | $ 1,817 | $ 3,822 | $ 3,603
Percentage of revenues | 100.00% | 100.00% | 100.00% | 100.00%
Transaction Revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 699 | $ 730 | $ 1,468 | $ 1,454
Percentage of revenues | 37.00% | 40.00% | 38.00% | 40.00%
Recurring Revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 1,199 | $ 1,087 | $ 2,354 | $ 2,149
Percentage of revenues | 63.00% | 60.00% | 62.00% | 60.00%
MA |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 888 | $ 802 | $ 1,747 | $ 1,601
MA | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 891 | $ 806 | $ 1,753 | $ 1,608
Percentage of revenues | 100.00% | 100.00% | 100.00% | 100.00%
MA | DS Banking Product and Service | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 138 | $ 131 | $ 279 | $ 265
Percentage of revenues | 100.00% | 100.00% | 100.00% | 100.00%
MA | Insurance | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 168 | $ 147 | $ 331 | $ 291
Percentage of revenues | 100.00% | 100.00% | 100.00% | 100.00%
MA | KYC | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 107 | $ 88 | $ 208 | $ 175
Percentage of revenues | 100.00% | 100.00% | 100.00% | 100.00%
MA | Decision Solutions (DS) |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 413 | $ 366 |  |
MA | Decision Solutions (DS) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 413 | $ 366 | $ 818 | $ 731
Percentage of revenues | 100.00% | 100.00% | 100.00% | 100.00%
MA | Research and Insights (R&I) |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 249 | $ 226 |  |
MA | Research and Insights (R&I) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 249 | $ 226 | $ 485 | $ 448
Percentage of revenues | 100.00% | 100.00% | 100.00% | 100.00%
MA | Data and Information (D&I) |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 226 | $ 210 |  |
MA | Data and Information (D&I) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 226 | $ 210 | $ 444 | $ 422
Percentage of revenues | 100.00% | 100.00% | 100.00% | 100.00%
MA | Transaction Revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 36 | $ 38 | $ 73 | $ 85
MA | Transaction Revenue | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Percentage of revenues | 4.00% | 5.00% | 4.00% | 5.00%
MA | Transaction Revenue | DS Banking Product and Service | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 25 | $ 28 | $ 51 | $ 57
Percentage of revenues | 18.00% | 21.00% | 18.00% | 22.00%
MA | Transaction Revenue | Insurance | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 6 | $ 4 | $ 12 | $ 14
Percentage of revenues | 4.00% | 3.00% | 4.00% | 5.00%
MA | Transaction Revenue | KYC | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 0 | $ 1 | $ 0 | $ 3
Percentage of revenues | 0.00% | 1.00% | 0.00% | 2.00%
MA | Transaction Revenue | Decision Solutions (DS) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 31 | $ 33 | $ 63 | $ 74
Percentage of revenues | 8.00% | 9.00% | 8.00% | 10.00%
MA | Transaction Revenue | Research and Insights (R&I) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 3 | $ 3 | $ 6 | $ 6
Percentage of revenues | 1.00% | 1.00% | 1.00% | 1.00%
MA | Transaction Revenue | Data and Information (D&I) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 2 | $ 2 | $ 4 | $ 5
Percentage of revenues | 1.00% | 1.00% | 1.00% | 1.00%
MA | Recurring Revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 852 | $ 764 | $ 1,674 | $ 1,516
MA | Recurring Revenue | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Percentage of revenues | 96.00% | 95.00% | 96.00% | 95.00%
MA | Recurring Revenue | DS Banking Product and Service | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 113 | $ 103 | $ 228 | $ 208
Percentage of revenues | 82.00% | 79.00% | 82.00% | 78.00%
MA | Recurring Revenue | Insurance | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 162 | $ 143 | $ 319 | $ 277
Percentage of revenues | 96.00% | 97.00% | 96.00% | 95.00%
MA | Recurring Revenue | KYC | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 107 | $ 87 | $ 208 | $ 172
Percentage of revenues | 100.00% | 99.00% | 100.00% | 98.00%
MA | Recurring Revenue | Decision Solutions (DS) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 382 | $ 333 | $ 755 | $ 657
Percentage of revenues | 92.00% | 91.00% | 92.00% | 90.00%
MA | Recurring Revenue | Research and Insights (R&I) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 246 | $ 223 | $ 479 | $ 442
Percentage of revenues | 99.00% | 99.00% | 99.00% | 99.00%
MA | Recurring Revenue | Data and Information (D&I) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 224 | $ 208 | $ 440 | $ 417
Percentage of revenues | 99.00% | 99.00% | 99.00% | 99.00%
MIS |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 1,010 | $ 1,015 | $ 2,075 | $ 2,002
MIS | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 1,060 | $ 1,064 | $ 2,174 | $ 2,098
Percentage of revenues | 100.00% | 100.00% | 100.00% | 100.00%
MIS | Corporate Finance (CFG) |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 512 | $ 525 |  |
MIS | Corporate Finance (CFG) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 512 | $ 525 | $ 1,076 | $ 1,054
Percentage of revenues | 100.00% | 100.00% | 100.00% | 100.00%
MIS | Structured Finance (SFG) |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 135 | $ 131 |  |
MIS | Structured Finance (SFG) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 135 | $ 131 | $ 273 | $ 245
Percentage of revenues | 100.00% | 100.00% | 100.00% | 100.00%
MIS | Financial Institutions (FIG) |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 191 | $ 195 |  |
MIS | Financial Institutions (FIG) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 191 | $ 195 | $ 382 | $ 390
Percentage of revenues | 100.00% | 100.00% | 100.00% | 100.00%
MIS | Public, Project and Infrastructure Finance (PPIF) |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 162 | $ 154 |  |
MIS | Public, Project and Infrastructure Finance (PPIF) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 162 | $ 154 | $ 325 | $ 295
Percentage of revenues | 100.00% | 100.00% | 100.00% | 100.00%
MIS | MIS Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 10 | $ 10 |  |
MIS | MIS Other | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 10 | $ 10 | $ 19 | $ 18
Percentage of revenues | 100.00% | 100.00% | 100.00% | 100.00%
MIS | Transaction Revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 663 | $ 692 | $ 1,395 | $ 1,369
MIS | Transaction Revenue | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Percentage of revenues | 66.00% | 68.00% | 67.00% | 68.00%
MIS | Transaction Revenue | Corporate Finance (CFG) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 365 | $ 388 | $ 792 | $ 787
Percentage of revenues | 71.00% | 74.00% | 74.00% | 75.00%
MIS | Transaction Revenue | Structured Finance (SFG) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 74 | $ 76 | $ 152 | $ 135
Percentage of revenues | 55.00% | 58.00% | 56.00% | 55.00%
MIS | Transaction Revenue | Financial Institutions (FIG) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 108 | $ 115 | $ 217 | $ 237
Percentage of revenues | 57.00% | 59.00% | 57.00% | 61.00%
MIS | Transaction Revenue | Public, Project and Infrastructure Finance (PPIF) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 113 | $ 110 | $ 229 | $ 206
Percentage of revenues | 70.00% | 71.00% | 70.00% | 70.00%
MIS | Transaction Revenue | MIS Other | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 3 | $ 3 | $ 5 | $ 4
Percentage of revenues | 30.00% | 30.00% | 26.00% | 22.00%
MIS | Recurring Revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 347 | $ 323 | $ 680 | $ 633
MIS | Recurring Revenue | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Percentage of revenues | 34.00% | 32.00% | 33.00% | 32.00%
MIS | Recurring Revenue | Corporate Finance (CFG) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 147 | $ 137 | $ 284 | $ 267
Percentage of revenues | 29.00% | 26.00% | 26.00% | 25.00%
MIS | Recurring Revenue | Structured Finance (SFG) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 61 | $ 55 | $ 121 | $ 110
Percentage of revenues | 45.00% | 42.00% | 44.00% | 45.00%
MIS | Recurring Revenue | Financial Institutions (FIG) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 83 | $ 80 | $ 165 | $ 153
Percentage of revenues | 43.00% | 41.00% | 43.00% | 39.00%
MIS | Recurring Revenue | Public, Project and Infrastructure Finance (PPIF) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 49 | $ 44 | $ 96 | $ 89
Percentage of revenues | 30.00% | 29.00% | 30.00% | 30.00%
MIS | Recurring Revenue | MIS Other | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 7 | $ 7 | $ 14 | $ 14
Percentage of revenues | 70.00% | 70.00% | 74.00% | 78.00%

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