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GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Other Intangible Assets (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Other intangible assets    
Total $ 73,146 $ 73,340
Accumulated amortization (51,768) (50,033)
Other intangible assets 21,378 23,307
IPRD    
Other intangible assets    
IPRD 7,685 7,985
Other intangible assets 7,685 7,985
R&D technology    
Other intangible assets    
Gross carrying amounts 1,980 1,980
Accumulated amortization (440) (275)
Other intangible assets $ 1,540 1,705
R&D technology | Minimum    
Other intangible assets    
Estimated useful lives (in years) 6 years  
Acquired marketed product rights    
Other intangible assets    
Gross carrying amounts $ 61,927 61,876
Accumulated amortization (50,154) (48,659)
Other intangible assets $ 11,773 13,217
Acquired marketed product rights | Minimum    
Other intangible assets    
Estimated useful lives (in years) 3 years  
Acquired marketed product rights | Maximum    
Other intangible assets    
Estimated useful lives (in years) 17 years  
Capitalized software    
Other intangible assets    
Gross carrying amounts $ 1,554 1,499
Accumulated amortization (1,174) (1,099)
Other intangible assets $ 380 $ 400
Capitalized software | Minimum    
Other intangible assets    
Estimated useful lives (in years) 3 years  
Capitalized software | Maximum    
Other intangible assets    
Estimated useful lives (in years) 10 years