Statement Of Equity - USD ($) $ in Thousands	Cumulative Preferred Shares [Member]	Common Shares [Member]	Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]	Total Public Storage Shareholders' Equity [Member]	Noncontrolling Interests [Member]	Total
Balances at Dec. 31, 2018	$ 4,025,000	$ 17,413	$ 5,718,485	$ (577,360)	$ (64,060)	$ 9,119,478	$ 25,250	$ 9,144,728
Issuance of preferred shares (Note 8)	285,000					276,723		276,723
Issuance of preferred shares (Note 8), adjustment to APIC			(8,277)
Redemption of preferred shares (Note 8)	(572,500)					(572,500)		(572,500)
Issuance of common shares in connection with share-based compensation (Note 10)		16	17,374			17,390		17,390
Share-based compensation expense, net of cash paid in lieu of common shares			2,363			2,363		2,363
Contributions by noncontrolling interests							1,302	1,302
Net income				739,134		739,134		739,134
Net income allocated to noncontrolling interests				(2,557)		(2,557)	2,557	(2,557)
Distributions to:
Preferred shareholders (Note 8)				(108,537)		(108,537)		(108,537)
Noncontrolling interests							(3,533)	(3,533)
Common shareholders and restricted share unitholders ($2.00 per share)				(699,071)		(699,071)		(699,071)
Other comprehensive income (loss) (Note 2)					(3,489)	(3,489)		(3,489)
Balances at Jun. 30, 2019	3,737,500	17,429	5,729,945	(648,391)	(67,549)	8,768,934	25,576	8,794,510
Balances at Mar. 31, 2019	4,025,000	17,422	5,708,699	(615,329)	(65,971)	9,069,821	24,800	9,094,621
Redemption of preferred shares (Note 8)	(287,500)					(287,500)		(287,500)
Issuance of common shares in connection with share-based compensation (Note 10)		7	15,790			15,797		15,797
Share-based compensation expense, net of cash paid in lieu of common shares			5,456			5,456		5,456
Contributions by noncontrolling interests							1,106	1,106
Net income				371,456		371,456		371,456
Net income allocated to noncontrolling interests				(1,400)		(1,400)	1,400	(1,400)
Distributions to:
Preferred shareholders (Note 8)				(53,525)		(53,525)		(53,525)
Noncontrolling interests							(1,730)	(1,730)
Common shareholders and restricted share unitholders ($2.00 per share)				(349,593)		(349,593)		(349,593)
Other comprehensive income (loss) (Note 2)					(1,578)	(1,578)		(1,578)
Balances at Jun. 30, 2019	3,737,500	17,429	5,729,945	(648,391)	(67,549)	8,768,934	25,576	8,794,510
Balances at Dec. 31, 2019	4,065,000	17,442	5,710,934	(665,575)	(64,890)	9,062,911	16,756	9,079,667
Issuance of preferred shares (Note 8)	565,000					549,170		549,170
Issuance of preferred shares (Note 8), adjustment to APIC			(15,830)
Redemption of preferred shares (Note 8)	(495,000)					(495,000)		(495,000)
Issuance of common shares in connection with share-based compensation (Note 10)		8	3,678			3,686		3,686
Share-based compensation expense, net of cash paid in lieu of common shares			3,716			3,716		3,716
Acquisition of noncontrolling interests			(32)			(32)	(1)	(33)
Contributions by noncontrolling interests							1,433	1,433
Net income				682,948		682,948		682,948
Net income allocated to noncontrolling interests				(1,869)		(1,869)	1,869	(1,869)
Distributions to:
Preferred shareholders (Note 8)				(104,957)		(104,957)		(104,957)
Noncontrolling interests							(2,550)	(2,550)
Common shareholders and restricted share unitholders ($2.00 per share)				(699,636)		(699,636)		(699,636)
Other comprehensive income (loss) (Note 2)					(8,246)	(8,246)		(8,246)
Balances at Jun. 30, 2020	4,135,000	17,450	5,702,466	(789,089)	(73,136)	8,992,691	17,507	9,010,198
Balances at Mar. 31, 2020	4,065,000	17,448	5,709,861	(701,226)	(78,005)	9,013,078	17,130	9,030,208
Issuance of preferred shares (Note 8)	565,000					549,170		549,170
Issuance of preferred shares (Note 8), adjustment to APIC			(15,830)
Redemption of preferred shares (Note 8)	(495,000)					(495,000)		(495,000)
Issuance of common shares in connection with share-based compensation (Note 10)		2	1,921			1,923		1,923
Share-based compensation expense, net of cash paid in lieu of common shares			6,546			6,546		6,546
Acquisition of noncontrolling interests			(32)			(32)	(1)	(33)
Contributions by noncontrolling interests							867	867
Net income				315,812		315,812		315,812
Net income allocated to noncontrolling interests				(889)		(889)	889	(889)
Distributions to:
Preferred shareholders (Note 8)				(52,952)		(52,952)		(52,952)
Noncontrolling interests							(1,378)	(1,378)
Common shareholders and restricted share unitholders ($2.00 per share)				(349,834)		(349,834)		(349,834)
Other comprehensive income (loss) (Note 2)					4,869	4,869		4,869
Balances at Jun. 30, 2020	$ 4,135,000	$ 17,450	$ 5,702,466	$ (789,089)	$ (73,136)	$ 8,992,691	$ 17,507	$ 9,010,198