v3.25.2
Description of the Business (Details)
ft² in Millions
 6 Months Ended
Jun. 30, 2025
ft²
storage_facility
state
country
Shurgard Self Storage Sa  
Nature Of Business [Line Items]  
PSA number of self-storage facilities | storage_facility 321
Net rentable area (in square feet) 18.0
Ownership interest (as percent) 35.00%
Number of countries in which entity operates | country 7
Public Storage  
Nature Of Business [Line Items]  
PSA number of self-storage facilities | storage_facility 3,103
Net rentable area (in square feet) 224.1
Number of states with facilities | state 40
Number of third-party self-storage facilities managed | storage_facility 329
Public Storage | Commercial and Retail Space  
Nature Of Business [Line Items]  
Net rentable area (in square feet) 1.0
Public Storage | Facilities, Managed For Third Parties  
Nature Of Business [Line Items]  
Net rentable area (in square feet) 25.4
Public Storage Parent  
Nature Of Business [Line Items]  
Ownership interest 99.80%
Trustees and Officers  
Nature Of Business [Line Items]  
Ownership interest of noncontrolling owners (less than) 0.20%