v3.22.2.2
Document and Entity Information
Oct. 04, 2022
Document And Entity Information [Line Items]  
Entity Tax Identification Number 34-1096634
Amendment Flag false
Entity Central Index Key 0000766704
Document Type 8-K
Document Period End Date Oct. 04, 2022
Entity Registrant Name Welltower Inc.
Entity Incorporation State Country Code DE
Entity File Number 1-8923
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
Common Stock [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 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 2 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 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 1 [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Guarantee of 4.500% Notes due 2034 issued by Welltower OP LLC
Trading Symbol WELL/34
Security Exchange Name NYSE