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Goodwill - Summary of Changes in the Carrying Amount of Goodwill by Segment (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Goodwill [Line Items]        
Beginning balance [1]     $ 17,633  
Goodwill impairment $ (700) $ (745) (700) $ (745)
Goodwill reclassified as assets to held for sale     (19)  
Translation differences     205  
Ending balance [1] 17,118   17,118  
North America [Member]        
Goodwill [Line Items]        
Beginning balance [1]     6,450  
Goodwill reclassified as assets to held for sale     0  
Translation differences     9  
Ending balance [1] 6,459   6,459  
Europe [Member]        
Goodwill [Line Items]        
Beginning balance [1]     8,302  
Goodwill reclassified as assets to held for sale     0  
Translation differences     95  
Ending balance [1] 8,397   8,397  
International Markets [Member]        
Goodwill [Line Items]        
Beginning balance [1]     1,339  
Goodwill impairment     (700)  
Goodwill reclassified as assets to held for sale     (19)  
Translation differences     82  
Ending balance [1] 702   702  
Other [Member] | Medis Reporting Unit [Member]        
Goodwill [Line Items]        
Beginning balance [1]     249  
Goodwill reclassified as assets to held for sale     0  
Translation differences     9  
Ending balance [1] 258   258  
Other [Member] | Tevas API Reporting Unit [Member]        
Goodwill [Line Items]        
Beginning balance [1]     1,293  
Goodwill reclassified as assets to held for sale     0  
Translation differences     10  
Ending balance [1] $ 1,303   $ 1,303  
[1] Accumulated goodwill impairment as of June 30, 2023 and December 31, 2022 was approximately $27.6 billion.