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Cover - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Feb. 20, 2026
Jun. 30, 2025
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2025    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-38672    
Entity Registrant Name ARVINAS, INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 47-2566120    
Entity Address, Address Line One 5 Science Park    
Entity Address, Address Line Two 395 Winchester Ave    
Entity Address, City or Town New Haven    
Entity Address, State or Province CT    
Entity Address, Postal Zip Code 06511    
City Area Code 203    
Local Phone Number 535-1456    
Title of 12(b) Security Common stock, par value $0.001 per share    
Trading Symbol ARVN    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction false    
Entity Shell Company false    
Entity Public Float     $ 469.0
Entity Common Stock Shares Outstanding   63,960,997  
Documents Incorporated by Reference
Part III of this Annual Report incorporates by reference information from the definitive Proxy Statement for the registrant’s 2026 Annual Meeting of Stockholders, which is expected to be filed with the Securities and Exchange Commission not later than 120 days after the registrant’s fiscal year ended December 31, 2025.
    
Entity Central Index Key 0001655759    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Amendment Flag false