v3.26.1
GOODWILL AND OTHER ACQUIRED INTANGIBLE ASSETS - Activity in Goodwill (Detail) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Goodwill [Roll Forward]    
Beginning balance, goodwill gross $ 6,380 $ 6,006
Beginning balance, Accumulated impairment charge (12) (12)
Beginning balance, goodwill net 6,368 5,994
Additions/ adjustments 32 143
Foreign currency translation adjustments (89) 329
Divestiture of business   (9)
Ending balance, goodwill gross 6,330 6,380
Ending balance, Accumulated impairment charge (12) (12)
Ending balance, goodwill net 6,318 6,368
Disposal Group, Held-for-sale, Not Discontinued Operations    
Goodwill [Roll Forward]    
Goodwill, other increase (decrease) (7) (89)
MA    
Goodwill [Roll Forward]    
Beginning balance, goodwill gross 5,997 5,626
Beginning balance, Accumulated impairment charge (12) (12)
Beginning balance, goodwill net 5,985 5,614
Additions/ adjustments 0 135
Foreign currency translation adjustments (75) 334
Divestiture of business   (9)
Ending balance, goodwill gross 5,929 5,997
Ending balance, Accumulated impairment charge (12) (12)
Ending balance, goodwill net 5,917 5,985
MA | Disposal Group, Held-for-sale, Not Discontinued Operations    
Goodwill [Roll Forward]    
Goodwill, other increase (decrease) (7) (89)
MIS    
Goodwill [Roll Forward]    
Beginning balance, goodwill gross 383 380
Beginning balance, Accumulated impairment charge 0 0
Beginning balance, goodwill net 383 380
Additions/ adjustments 32 8
Foreign currency translation adjustments (14) (5)
Divestiture of business   0
Ending balance, goodwill gross 401 383
Ending balance, Accumulated impairment charge 0 0
Ending balance, goodwill net 401 383
MIS | Disposal Group, Held-for-sale, Not Discontinued Operations    
Goodwill [Roll Forward]    
Goodwill, other increase (decrease) $ 0 $ 0