v3.25.3
Goodwill and Other Intangible Assets - Additional Information (Details) - EUR (€)
€ in Millions
6 Months Ended
Jun. 30, 2025
Dec. 31, 2024
Disclosure of reconciliation of changes in goodwill [line items]    
Goodwill [1] € 40,283 € 43,384
Carrying amount of intangible assets [1] 20,431 22,629
Marketed products    
Disclosure of reconciliation of changes in goodwill [line items]    
Carrying amount of intangible assets € 11,000 12,700
Weighted average amortization period 10 years  
Technological platforms    
Disclosure of reconciliation of changes in goodwill [line items]    
Carrying amount of intangible assets € 1,000 € 1,100
Weighted average amortization period 18 years  
[1] These unaudited condensed half year consolidated financial statements as of June 30, 2025 should be read in conjunction with Sanofi’s audited consolidated financial statements as of December 31, 2024.