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Goodwill - Summary of Changes in the Carrying Amount of Goodwill by Segment (Detail) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2023
Jun. 30, 2023
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Goodwill [Line Items]          
Beginning balance [1]     $ 17,633 $ 20,040  
Goodwill impairment $ 0 $ (700) (700) (2,045) $ 0
Goodwill reclassified as assets to held for sale     (30)    
Goodwill acquired       12  
Translation differences     275 (374)  
Ending balance [1] 17,177   17,177 17,633 20,040
North America [Member]          
Goodwill [Line Items]          
Beginning balance [1]     6,450 6,474  
Goodwill impairment     0 0  
Goodwill reclassified as assets to held for sale     0    
Goodwill acquired       0  
Translation differences     9 (24)  
Ending balance [1] 6,459   6,459 6,450 6,474
Europe [Member]          
Goodwill [Line Items]          
Beginning balance [1]     8,302 8,544  
Goodwill impairment     0 0  
Goodwill reclassified as assets to held for sale     0    
Goodwill acquired       0  
Translation differences     164 (242)  
Ending balance [1] 8,466   8,466 8,302 8,544
International Markets [Member]          
Goodwill [Line Items]          
Beginning balance [1]     1,339 2,328  
Goodwill impairment     (700) (979)  
Goodwill reclassified as assets to held for sale     (30)    
Goodwill acquired       0  
Translation differences     66 (10)  
Ending balance [1] 675   675 1,339 2,328
Other [Member] | Medis Reporting Units [Member]          
Goodwill [Line Items]          
Beginning balance [1]     249 277  
Goodwill impairment     0 0  
Goodwill reclassified as assets to held for sale     0    
Goodwill acquired       0  
Translation differences     16 (28)  
Ending balance [1] 265   265 249 277
Other [Member] | Tevas API Reporting Unit [Member]          
Goodwill [Line Items]          
Beginning balance [1]     1,293 2,417  
Goodwill impairment     0 (1,066)  
Goodwill reclassified as assets to held for sale     0    
Goodwill acquired       12  
Translation differences     20 (70)  
Ending balance [1] $ 1,313   $ 1,313 $ 1,293 $ 2,417
[1] Cumulative goodwill impairment as of December 31, 2023, December 31, 2022 and December 31, 2021 was approximately $28.3 billion, $27.6 billion and $25.6 billion respectively.