v3.25.4
Acquisitions and divestitures (Details)
$ in Millions
Apr. 02, 2025
USD ($)
intangibleAsset
Dec. 28, 2025
USD ($)
Dec. 29, 2024
USD ($)
Dec. 31, 2023
USD ($)
Assets acquired:        
Goodwill   $ 48,772 $ 44,200 $ 36,558
Intra-Cellular Therapies, Inc.        
Assets acquired:        
Cash and cash equivalents $ 200      
Marketable securities 600      
Other current & non-current assets 300      
Intangible assets assumed 5,200      
Acquired in-process research and development 8,300      
Goodwill 2,900      
Total assets acquired 17,500      
Liabilities assumed:        
Deferred taxes 2,800      
Other current & non-current liabilities 200      
Total liabilities assumed 3,000      
Total assets acquired and liabilities assumed $ 14,500      
Weighted average useful life 8 years      
Number of acquired assets | intangibleAsset 2      
Probability of success factor 95.00%      
Intra-Cellular Therapies, Inc. | Minimum        
Liabilities assumed:        
Discount rate 11.50%      
Probability of success factor 34.00%      
Intra-Cellular Therapies, Inc. | Maximum        
Liabilities assumed:        
Discount rate 12.50%      
Probability of success factor 50.00%