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Certain Transactions - Other Transactions - Additional Information (Detail) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 9 Months Ended
Jun. 12, 2023
Oct. 31, 2021
Aug. 31, 2021
Dec. 31, 2016
Sep. 30, 2022
Jun. 30, 2022
Dec. 31, 2021
Sep. 30, 2023
Oct. 03, 2023
Sep. 29, 2023
Johnson And Johnson [Member] | Settlement And License Agreement Alvotech And Teva [Member]                    
Noncash or Part Noncash Acquisitions [Line Items]                    
Maximum entry date for granting license entry Feb. 21, 2025                  
Takeda [Member]                    
Noncash or Part Noncash Acquisitions [Line Items]                    
Upfront payment       $ 30            
Milestone payment       20   $ 25        
Collaborative agreement milestone payments       $ 519            
Alvotech [Member]                    
Noncash or Part Noncash Acquisitions [Line Items]                    
Collaborative agreement milestone payments               $ 400    
Alvotech [Member] | Subordinated Convertible Bonds [Member]                    
Noncash or Part Noncash Acquisitions [Line Items]                    
Cost of the investment                   $ 40
MedinCell [Member]                    
Noncash or Part Noncash Acquisitions [Line Items]                    
Milestone payment         $ 3          
Collaborative agreement milestone payments     $ 105              
MODAG [Member]                    
Noncash or Part Noncash Acquisitions [Line Items]                    
License agreement potential aggregate milestone payments amount   $ 30                
MODAG [Member] | Research and Development Expense [Member]                    
Noncash or Part Noncash Acquisitions [Line Items]                    
Milestone payment             $ 10      
Subsequent Event [Member] | Sanofi [Member] | Collaborative Arrangement [Member]                    
Noncash or Part Noncash Acquisitions [Line Items]                    
Milestone payment receivable                 $ 500  
Development and launch milestone payment receivable                 $ 1,000