Organization And Description Of Business (Narrative) (Details) shares in Millions	6 Months Ended
	Jun. 30, 2019 ft² property state shares
Organization And Description Of Business [Line Items]
The Company's ownership percentage of the limited partnership	79.00%
Owned and operated properties (in rentable square feet)	28,300,000
Number of states with rentable commercial space | state	6
Number of units in multi-family asset | property	395
Managed properties (in rentable square feet)	450,000
PS [Member]
Organization And Description Of Business [Line Items]
Affiliate's percent ownership of the Company's common equity	41.60%
Shares owned by Public Storage | shares	14.5
Investment in Consolidated Joint Venture [Member]
Organization And Description Of Business [Line Items]
Economic interest in joint venture, percentage	95.00%