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v3.25.3

Revenues - Revenue by Category (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 2,007 | $ 1,813 | $ 5,829 | $ 5,416
Eliminations |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (53) | (51) | (158) | (154)
Eliminations |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (53) | (51) | (158) | (154)
MA |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 909 | 831 | 2,656 | 2,432
MA | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 912 | 834 | 2,665 | 2,442
MA | Eliminations |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 3 | 3 | 9 | 10
MA | Decision Solutions (DS) |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 424 | 383 |  |
MA | Decision Solutions (DS) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 424 | 383 | 1,242 | 1,114
MA | Decision Solutions (DS) | DS Banking Product and Service | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 140 | 140 | 419 | 405
MA | Decision Solutions (DS) | Insurance | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 171 | 148 | 502 | 439
MA | Decision Solutions (DS) | KYC | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 113 | 95 | 321 | 270
MA | Research and Insights (R&I) |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 252 | 235 |  |
MA | Research and Insights (R&I) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 252 | 235 | 737 | 683
MA | Data and Information (D&I) |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 233 | 213 |  |
MA | Data and Information (D&I) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 233 | 213 | 677 | 635
MIS |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,098 | 982 | 3,173 | 2,984
MIS | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,148 | 1,030 | 3,322 | 3,128
MIS | Eliminations |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 50 | 48 | 149 | 144
MIS | Corporate Finance (CFG) |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 576 | 515 |  |
MIS | Corporate Finance (CFG) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 576 | 515 | 1,652 | 1,569
MIS | Corporate Finance (CFG) | Investment-grade | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 124 | 149 | 431 | 416
MIS | Corporate Finance (CFG) | High-yield | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 114 | 80 | 266 | 232
MIS | Corporate Finance (CFG) | Bank loans | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 155 | 120 | 413 | 422
MIS | Corporate Finance (CFG) | Other accounts | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 183 | 166 | 542 | 499
MIS | Structured Finance (SFG) |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 146 | 135 |  |
MIS | Structured Finance (SFG) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 146 | 135 | 419 | 380
MIS | Structured Finance (SFG) | Other accounts | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 2 | 1 | 3 | 2
MIS | Structured Finance (SFG) | Asset-backed securities | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 35 | 34 | 105 | 101
MIS | Structured Finance (SFG) | RMBS | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 29 | 24 | 84 | 73
MIS | Structured Finance (SFG) | CMBS | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 25 | 27 | 78 | 66
MIS | Structured Finance (SFG) | Structured credit | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 55 | 49 | 149 | 138
MIS | Financial Institutions (FIG) |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 208 | 170 |  |
MIS | Financial Institutions (FIG) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 208 | 170 | 590 | 560
MIS | Financial Institutions (FIG) | Insurance | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 52 | 46 | 151 | 166
MIS | Financial Institutions (FIG) | Other accounts | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 3 | 3 | 10 | 10
MIS | Financial Institutions (FIG) | Banking | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 136 | 108 | 386 | 344
MIS | Financial Institutions (FIG) | Managed investments | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 17 | 13 | 43 | 40
MIS | Public, Project and Infrastructure Finance (PPIF) |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 161 | 154 |  |
MIS | Public, Project and Infrastructure Finance (PPIF) | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 161 | 154 | 486 | 449
MIS | Public, Project and Infrastructure Finance (PPIF) | Public finance / sovereign | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 68 | 61 | 215 | 187
MIS | Public, Project and Infrastructure Finance (PPIF) | Project and infrastructure | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 93 | 93 | 271 | 262
MIS | Total ratings revenue |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,091 | 974 |  |
MIS | Total ratings revenue | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,091 | 974 | 3,147 | 2,958
MIS | MIS Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 7 | 8 |  |
MIS | MIS Other | Operating Segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 7 | $ 8 | $ 26 | $ 26

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