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Legal Settlements and Loss Contingencies - Additional Information (Detail)
€ in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 02, 2022
USD ($)
Jun. 30, 2022
USD ($)
Jun. 30, 2021
USD ($)
Jun. 30, 2022
USD ($)
Jun. 30, 2021
USD ($)
Jun. 30, 2022
EUR (€)
Dec. 31, 2021
USD ($)
Loss Contingencies [Line Items]              
Legal settlements and loss contingencies, expense $ 420 $ 729 $ 6 $ 1,854 $ 110    
Accrued amount for legal settlements and loss contingencies   $ 3,928   $ 3,928   € 60.5 $ 2,710
Restructuring expense and income         The expense in the first six months of 2021 was mainly due to the provision for the carvedilol patent litigation.    
Settlement On Account Of Product Liability [Member]              
Loss Contingencies [Line Items]              
Restructuring expense and income   The expenses in the second quarter of 2022 were mainly related to an update of the estimated settlement provision recorded in connection with the remaining opioid cases.