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Cover - USD ($)
$ in Billions
 12 Months Ended
Dec. 31, 2023
Feb. 22, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 1-12504    
Entity Registrant Name MACERICH CO    
Entity Incorporation, State or Country Code MD    
Entity Tax Identification Number 95-4448705    
Entity Address, Address Line One 401 Wilshire Boulevard,    
Entity Address, Address Line Two Suite 700,    
Entity Address, City or Town Santa Monica,    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 90401    
City Area Code (310)    
Local Phone Number 394-6000    
Title of each class Common Stock, $0.01 Par Value    
Trading Symbol(s) MAC    
Name of each exchange on which registered NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 2.4
Entity Common Stock, Shares Outstanding   215,720,093  
Documents Incorporated by Reference
Portions of the proxy statement for the annual stockholders meeting to be held in 2024 are incorporated by reference into Part III of this Form 10-K.
    
Entity Central Index Key 0000912242    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Amendment Flag false