v3.25.4
ACCOUNTING POLICIES AND RECENTLY ISSUED ACCOUNTING STANDARDS - Acquired IPRD by Type of Transaction (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Property, Plant and Equipment [Line Items]      
Acquired IPRD $ 3,721 $ 13,373 $ 913
Alliance revenues      
Property, Plant and Equipment [Line Items]      
Alliance (Note 3) 1,750 880 55
In-license and other arrangements (Note 4) 592 371 858
Acquired IPRD 3,721 13,373 913
Alliance revenues | Acquired IPRD      
Property, Plant and Equipment [Line Items]      
Acquisitions (Note 4) $ 1,379 $ 12,122 $ 0