v3.26.1
ACQUISITIONS, DIVESTITURES, LICENSING AND OTHER ARRANGEMENTS - Licensing and Other Arrangements (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disposal Group, Including Discontinued Operations [Line Items]        
Contingent milestone income $ 0 $ 0 $ 0 $ (40)
Amortization of deferred income (12) (12) (24) (24)
Royalty and licensing income (186) (162) (381) (421)
Keytruda royalties        
Disposal Group, Including Discontinued Operations [Line Items]        
Royalty income, nonoperating (149) (132) (308) (284)
Tecentriq royalties        
Disposal Group, Including Discontinued Operations [Line Items]        
Royalty income, nonoperating (12) (11) (26) (23)
Other royalties and licensing income        
Disposal Group, Including Discontinued Operations [Line Items]        
Royalty income, nonoperating $ (13) $ (7) $ (23) $ (51)