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Goodwill - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 9 Months Ended
Sep. 30, 2024
Jun. 30, 2024
Sep. 30, 2023
Jun. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Goodwill [Line Items]            
Goodwill impairment $ 600 $ 400 $ 0   $ 1,000 $ 700
Tevas United States, Europe, International Markets and Medis reporting units [Member]            
Goodwill [Line Items]            
Reporting unit percentage of fair value in excess of carrying amount   10.00%        
Tevas API Reporting Unit [Member]            
Goodwill [Line Items]            
Goodwill impairment $ 600          
International Markets [Member]            
Goodwill [Line Items]            
Goodwill impairment       $ 700 $ 0