v3.26.3
Cover Page
Oct. 27, 2026
Jul. 28, 2026
Document Information [Line Items]    
Document Type 8-K  
Document Period End Date Oct. 27, 2026  
Entity Registrant Name Welltower Inc.  
Entity Incorporation, State or Country Code DE  
Entity File Number 1-8923  
Entity Tax Identification Number 34-1096634  
Entity Address, Address Line One 4500 Dorr Street  
Entity Address, City or Town Toledo  
Entity Address, State or Province OH  
Entity Address, Postal Zip Code 43615  
City Area Code 419  
Local Phone Number 247-2800  
Written Communications false  
Soliciting Material false  
Pre-commencement Tender Offer false  
Pre-commencement Issuer Tender Offer false  
Entity Emerging Growth Company false  
Entity Central Index Key 0000766704  
Amendment Flag false  
Common stock, $1.00 par value per share    
Document Information [Line Items]    
Title of 12(b) Security   Common stock, $1.00 par value per share
Trading Symbol   WELL
Security Exchange Name   NYSE
Guarantee of 4.800% Notes due 2028 issued by Welltower OP LLC    
Document Information [Line Items]    
Title of 12(b) Security   Guarantee of 4.800% Notes due 2028 issued by Welltower OP LLC
Trading Symbol   WELL/28
Security Exchange Name   NYSE
Guarantee of 4.500% Notes due 2034 issued by Welltower OP LLC    
Document Information [Line Items]    
Title of 12(b) Security   Guarantee of 4.500% Notes due 2034 issued by Welltower OP LLC
Trading Symbol   WELL/34
Security Exchange Name   NYSE