XML 109 R47.htm IDEA: XBRL DOCUMENT v3.25.1
Revenues - Revenues Disaggregated by Line of Business and Geographical Area (Detail) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Disaggregation of Revenue [Line Items]    
Revenue $ 1,924 $ 1,786
United States    
Disaggregation of Revenue [Line Items]    
Revenue 1,065 969
Non-U.S.    
Disaggregation of Revenue [Line Items]    
Revenue 859 817
MA    
Disaggregation of Revenue [Line Items]    
Revenue 859 799
MA | Operating Segments    
Disaggregation of Revenue [Line Items]    
Revenue 862 802
MA | United States    
Disaggregation of Revenue [Line Items]    
Revenue 375 337
MA | United States | Operating Segments    
Disaggregation of Revenue [Line Items]    
Revenue 375 337
MA | Non-U.S.    
Disaggregation of Revenue [Line Items]    
Revenue 484 462
MA | Non-U.S. | Operating Segments    
Disaggregation of Revenue [Line Items]    
Revenue 484 462
MA | Decision Solutions (DS)    
Disaggregation of Revenue [Line Items]    
Revenue 405 365
MA | Decision Solutions (DS) | Operating Segments    
Disaggregation of Revenue [Line Items]    
Revenue 405 365
MA | Decision Solutions (DS) | United States    
Disaggregation of Revenue [Line Items]    
Revenue 167 138
MA | Decision Solutions (DS) | Non-U.S.    
Disaggregation of Revenue [Line Items]    
Revenue 238 227
MA | Research and Insights (R&I)    
Disaggregation of Revenue [Line Items]    
Revenue 236 222
MA | Research and Insights (R&I) | Operating Segments    
Disaggregation of Revenue [Line Items]    
Revenue 236 222
MA | Research and Insights (R&I) | United States    
Disaggregation of Revenue [Line Items]    
Revenue 128 122
MA | Research and Insights (R&I) | Non-U.S.    
Disaggregation of Revenue [Line Items]    
Revenue 108 100
MA | Data and Information (D&I)    
Disaggregation of Revenue [Line Items]    
Revenue 218 212
MA | Data and Information (D&I) | Operating Segments    
Disaggregation of Revenue [Line Items]    
Revenue 218 212
MA | Data and Information (D&I) | United States    
Disaggregation of Revenue [Line Items]    
Revenue 80 77
MA | Data and Information (D&I) | Non-U.S.    
Disaggregation of Revenue [Line Items]    
Revenue 138 135
MIS    
Disaggregation of Revenue [Line Items]    
Revenue 1,065 987
MIS | Operating Segments    
Disaggregation of Revenue [Line Items]    
Revenue 1,114 1,034
MIS | United States    
Disaggregation of Revenue [Line Items]    
Revenue 690 632
MIS | United States | Operating Segments    
Disaggregation of Revenue [Line Items]    
Revenue 690 632
MIS | Non-U.S.    
Disaggregation of Revenue [Line Items]    
Revenue 375 355
MIS | Non-U.S. | Operating Segments    
Disaggregation of Revenue [Line Items]    
Revenue 375 355
MIS | Corporate Finance (CFG)    
Disaggregation of Revenue [Line Items]    
Revenue 564 529
MIS | Corporate Finance (CFG) | Operating Segments    
Disaggregation of Revenue [Line Items]    
Revenue 564 529
MIS | Corporate Finance (CFG) | United States    
Disaggregation of Revenue [Line Items]    
Revenue 391 372
MIS | Corporate Finance (CFG) | Non-U.S.    
Disaggregation of Revenue [Line Items]    
Revenue 173 157
MIS | Structured Finance (SFG)    
Disaggregation of Revenue [Line Items]    
Revenue 138 114
MIS | Structured Finance (SFG) | Operating Segments    
Disaggregation of Revenue [Line Items]    
Revenue 138 114
MIS | Structured Finance (SFG) | United States    
Disaggregation of Revenue [Line Items]    
Revenue 100 76
MIS | Structured Finance (SFG) | Non-U.S.    
Disaggregation of Revenue [Line Items]    
Revenue 38 38
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
MIS | Financial Institutions (FIG) | United States    
Disaggregation of Revenue [Line Items]    
Revenue 95 98
MIS | Financial Institutions (FIG) | Non-U.S.    
Disaggregation of Revenue [Line Items]    
Revenue 96 97
MIS | Public, Project and Infrastructure Finance (PPIF)    
Disaggregation of Revenue [Line Items]    
Revenue 163 141
MIS | Public, Project and Infrastructure Finance (PPIF) | Operating Segments    
Disaggregation of Revenue [Line Items]    
Revenue 163 141
MIS | Public, Project and Infrastructure Finance (PPIF) | United States    
Disaggregation of Revenue [Line Items]    
Revenue 104 86
MIS | Public, Project and Infrastructure Finance (PPIF) | Non-U.S.    
Disaggregation of Revenue [Line Items]    
Revenue 59 55
MIS | Total ratings revenue    
Disaggregation of Revenue [Line Items]    
Revenue 1,056 979
MIS | Total ratings revenue | Operating Segments    
Disaggregation of Revenue [Line Items]    
Revenue 1,056 979
MIS | Total ratings revenue | United States    
Disaggregation of Revenue [Line Items]    
Revenue 690 632
MIS | Total ratings revenue | Non-U.S.    
Disaggregation of Revenue [Line Items]    
Revenue 366 347
MIS | MIS Other    
Disaggregation of Revenue [Line Items]    
Revenue 9 8
MIS | MIS Other | Operating Segments    
Disaggregation of Revenue [Line Items]    
Revenue 9 8
MIS | MIS Other | United States    
Disaggregation of Revenue [Line Items]    
Revenue 0 0
MIS | MIS Other | Non-U.S.    
Disaggregation of Revenue [Line Items]    
Revenue $ 9 $ 8