| Document and Entity Information | Apr. 11, 2024 |
| Document And Entity Information [Line Items] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001393311 |
| Document Type | 8-K |
| Document Period End Date | Apr. 11, 2024 |
| Entity Registrant Name | Public Storage |
| Entity Incorporation State Country Code | MD |
| Entity File Number | 001-33519 |
| Entity Tax Identification Number | 93-2834996 |
| Entity Address, Address Line One | 701 Western Avenue |
| Entity Address, City or Town | Glendale |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 91201-2349 |
| City Area Code | (818) |
| Local Phone Number | 244-8080 |
| 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 Shares, $0.10 par value |
| Trading Symbol | PSA |
| Security Exchange Name | NYSE |
| Series F Preferred Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Depositary Shares Each Representing 1/1,000 of a 5.150% Cum Pref Share, Series F, $0.01 par value |
| Trading Symbol | PSAPrF |
| Security Exchange Name | NYSE |
| Series G Preferred Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Depositary Shares Each Representing 1/1,000 of a 5.050% Cum Pref Share, Series G, $0.01 par value |
| Trading Symbol | PSAPrG |
| Security Exchange Name | NYSE |
| Series H Preferred Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Depositary Shares Each Representing 1/1,000 of a 5.600% Cum Pref Share, Series H, $0.01 par value |
| Trading Symbol | PSAPrH |
| Security Exchange Name | NYSE |
| Series I Preferred Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Depositary Shares Each Representing 1/1,000 of a 4.875% Cum Pref Share, Series I, $0.01 par value |
| Trading Symbol | PSAPrI |
| Security Exchange Name | NYSE |
| Series J Preferred Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Depositary Shares Each Representing 1/1,000 of a 4.700% Cum Pref Share, Series J, $0.01 par value |
| Trading Symbol | PSAPrJ |
| Security Exchange Name | NYSE |
| Series K Preferred Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Depositary Shares Each Representing 1/1,000 of a 4.750% Cum Pref Share, Series K, $0.01 par value |
| Trading Symbol | PSAPrK |
| Security Exchange Name | NYSE |
| Series L Preferred Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Depositary Shares Each Representing 1/1,000 of a 4.625% Cum Pref Share, Series L, $0.01 par value |
| Trading Symbol | PSAPrL |
| Security Exchange Name | NYSE |
| Series M Preferred Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Depositary Shares Each Representing 1/1,000 of a 4.125% Cum Pref Share, Series M, $0.01 par value |
| Trading Symbol | PSAPrM |
| Security Exchange Name | NYSE |
| Series N Preferred Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Depositary Shares Each Representing 1/1,000 of a 3.875% Cum Pref Share, Series N, $0.01 par value |
| Trading Symbol | PSAPrN |
| Security Exchange Name | NYSE |
| Series O Preferred Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Depositary Shares Each Representing 1/1,000 of a 3.900% Cum Pref Share, Series O, $0.01 par value |
| Trading Symbol | PSAPrO |
| Security Exchange Name | NYSE |
| Series P Preferred Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Depositary Shares Each Representing 1/1,000 of a 4.000% Cum Pref Share, Series P, $0.01 par value |
| Trading Symbol | PSAPrP |
| Security Exchange Name | NYSE |
| Series Q Preferred Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Depositary Shares Each Representing 1/1,000 of a 3.950% Cum Pref Share, Series Q, $0.01 par value |
| Trading Symbol | PSAPrQ |
| Security Exchange Name | NYSE |
| Series R Preferred Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Depositary Shares Each Representing 1/1,000 of a 4.000% Cum Pref Share, Series R, $0.01 par value |
| Trading Symbol | PSAPrR |
| Security Exchange Name | NYSE |
| Series S Preferred Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Depositary Shares Each Representing 1/1,000 of a 4.100% Cum Pref Share, Series S, $0.01 par value |
| Trading Symbol | PSAPrS |
| Security Exchange Name | NYSE |
| Guarantee Notes Due 2032 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Guarantee of 0.875% Senior Notes due 2032 issued by Public Storage Operating Company |
| Trading Symbol | PSA/32 |
| Security Exchange Name | NYSE |
| Guarantee Notes Due 2030 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Guarantee of 0.500% Senior Notes due 2030 issued by Public Storage Operating Company |
| Trading Symbol | PSA/30 |
| Security Exchange Name | NYSE |
