v3.25.4
Goodwill and Other Intangible Assets - Schedule of Change in Carrying Amount of Goodwill (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Goodwill [Roll Forward]    
Goodwill, beginning balance $ 34,917 $ 34,850
Acquisitions 1,552 245
Dispositions   (80)
Reclassifications (141)  
Other 147 (98)
Goodwill, ending balance 36,475 34,917
Operating Segments | Market Intelligence    
Goodwill [Roll Forward]    
Goodwill, beginning balance 18,306 18,183
Acquisitions 1,487 229
Dispositions   (80)
Reclassifications (141)  
Other 10 (26)
Goodwill, ending balance 19,662 18,306
Operating Segments | Ratings    
Goodwill [Roll Forward]    
Goodwill, beginning balance 259 274
Acquisitions 24 0
Dispositions   0
Reclassifications (115)  
Other (4) (15)
Goodwill, ending balance 164 259
Operating Segments | Energy    
Goodwill [Roll Forward]    
Goodwill, beginning balance 5,550 5,538
Acquisitions 0 16
Dispositions   0
Reclassifications 0  
Other 13 (4)
Goodwill, ending balance 5,563 5,550
Operating Segments | Mobility    
Goodwill [Roll Forward]    
Goodwill, beginning balance 8,858 8,863
Acquisitions 0 0
Dispositions   0
Reclassifications 0  
Other 0 (5)
Goodwill, ending balance 8,858 8,858
Operating Segments | Indices    
Goodwill [Roll Forward]    
Goodwill, beginning balance 1,369 1,417
Acquisitions 36 0
Dispositions   0
Reclassifications 0  
Other 100 (48)
Goodwill, ending balance 1,505 1,369
Corporate    
Goodwill [Roll Forward]    
Goodwill, beginning balance 575 575
Acquisitions 5 0
Dispositions   0
Reclassifications 115  
Other 28 0
Goodwill, ending balance $ 723 $ 575