| Cover | 12 Months Ended |
| Dec. 31, 2022 | |
| Document Information [Line Items] | |
| Document Type | DEF 14A |
| Amendment Flag | false |
| Entity Information [Line Items] | |
| Entity Registrant Name | PUBLIC STORAGE |
| Entity Central Index Key | 0001393311 |
| Pay vs Performance Disclosure | 12 Months Ended | |||
| Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | |
| Pay vs Performance Disclosure [Table] | ||||
| Pay vs Performance [Table Text Block] | PAY VERSUS PERFORMANCE TABLES The following table sets forth information concerning 2022 Year Summary (1)(2) CAP to (3) Average (1)(2) Average (3) Value of Initial Fixed $100 GAAP Net (5) Core (6) TSR Peer TSR (4) 2022 $ 9,201,442 $ (1,902,305 ) $ 4,844,366 $ (2,183,334 ) $ 163 $ 130 $ 4,366,274 $ 15.92 2021 10,358,153 41,035,570 5,944,502 25,331,675 205 178 1,959,639 12.93 2020 4,800,928 4,537,499 3,174,594 2,999,877 123 123 1,361,227 10.61 2019 4,289,200 3,360,014 2,854,897 1,378,312 109 127 1,525,651 10.75 (1) The CEO for each year shown in the table was Joseph D. Russell and the other NEOs were H. Thomas Boyle, Natalia N. Johnson, and Nathaniel A. Vitan; Lily Y. Hughes was a former other NEO through May 2019. (2) The 2021 values reflected in this column reflect both the grant date fair value of the 2021 performance-based RSU awards and the value attributable to COVID-19 (3) Compensation actually paid (“CAP”) is defined by the SEC and is computed in accordance with SEC rules by subtracting the amounts in the “Stock Awards” and “Option Awards” columns of the SCT for each year from the “Total” column of the SCT and then: (i) adding the fair value as of the end of the reported year of all awards granted during the reporting year that are outstanding and unvested as of the end of the reporting ye ar; (ii) adding t reflect NEOs CEO Year SCT Total Minus SCT Plus Value of Plus Annual Plus Value Plus Change in Minus Value of Plus Dividends Equals CAP 2022 $ 9,201,442 $ 7,039,242 $ 6,790,064 $ (11,479,301 ) $ — $ (74,804 ) $ — $ 699,536 $ (1,902,305 ) 2021 10,358,153 8,149,753 23,991,640 14,299,544 — 382,986 — 153,000 41,035,570 2020 4,800,928 3,454,528 2,426,400 627,126 — 24,573 — 113,000 4,537,499 2019 4,289,200 2,873,000 1,479,800 166,619 — 152,395 — 145,000 3,360,014 Other NEOs (Average) Year SCT Total Minus SCT Equity Plus Value of Plus Annual Change in Awards Unvested Plus Value of New Vested Plus Change in Years that Vested During Year Minus Value of Years Plus Dividends Equals CAP 2022 $ 4,844,366 $ 3,686,458 $ 3,555,957 $ (7,193,033 ) $ — $ (68,454 ) $ — $ 364,288 $ (2,183,334 ) 2021 5,944,502 4,771,302 14,860,625 8,860,496 — 349,979 — 87,375 25,331,675 2020 3,174,594 2,295,972 1,771,553 271,223 — 20,974 — 57,505 2,999,877 2019 2,854,897 1,928,880 1,147,777 49,699 — 68,772 892,020 78,067 1,378,312 (4) Reflects the cumulative TSR of the Company and the S&P 500 Equity REITs Index for the year ended December 31, 2019, the two years ended December 31, 2020, the three years ended December 31, 2021, and the four years ended December 31, 2022, assuming a $100 investment at the closing price on December 31, 2018 and the reinvestment of all dividends. (5) Amounts in thousands. (6) Refer to Appendix A | |||
| Company Selected Measure Name | Core FFO | |||
| Named Executive Officers, Footnote [Text Block] | The CEO for each year shown in the table was Joseph D. Russell and the other NEOs were H. Thomas Boyle, Natalia N. Johnson, and Nathaniel A. Vitan; Lily Y. Hughes was a former other NEO through May 2019. | |||
| Peer Group Issuers, Footnote [Text Block] | Reflects the cumulative TSR of the Company and the S&P 500 Equity REITs Index for the year ended December 31, 2019, the two years ended December 31, 2020, the three years ended December 31, 2021, and the four years ended December 31, 2022, assuming a $100 investment at the closing price on December 31, 2018 and the reinvestment of all dividends. | |||
| PEO Total Compensation Amount | $ 9,201,442 | $ 10,358,153 | $ 4,800,928 | $ 4,289,200 |
| PEO Actually Paid Compensation Amount | $ (1,902,305) | 41,035,570 | 4,537,499 | 3,360,014 |
| Adjustment To PEO Compensation, Footnote [Text Block] | CEO Year SCT Total Minus SCT Plus Value of Plus Annual Plus Value Plus Change in Minus Value of Plus Dividends Equals CAP 2022 $ 9,201,442 $ 7,039,242 $ 6,790,064 $ (11,479,301 ) $ — $ (74,804 ) $ — $ 699,536 $ (1,902,305 ) 2021 10,358,153 8,149,753 23,991,640 14,299,544 — 382,986 — 153,000 41,035,570 2020 4,800,928 3,454,528 2,426,400 627,126 — 24,573 — 113,000 4,537,499 2019 4,289,200 2,873,000 1,479,800 166,619 — 152,395 — 145,000 3,360,014 | |||
| Non-PEO NEO Average Total Compensation Amount | $ 4,844,366 | 5,944,502 | 3,174,594 | 2,854,897 |
| Non-PEO NEO Average Compensation Actually Paid Amount | $ (2,183,334) | 25,331,675 | 2,999,877 | 1,378,312 |
| Adjustment to Non-PEO NEO Compensation Footnote [Text Block] | Other NEOs (Average) Year SCT Total Minus SCT Equity Plus Value of Plus Annual Change in Awards Unvested Plus Value of New Vested Plus Change in Years that Vested During Year Minus Value of Years Plus Dividends Equals CAP 2022 $ 4,844,366 $ 3,686,458 $ 3,555,957 $ (7,193,033 ) $ — $ (68,454 ) $ — $ 364,288 $ (2,183,334 ) 2021 5,944,502 4,771,302 14,860,625 8,860,496 — 349,979 — 87,375 25,331,675 2020 3,174,594 2,295,972 1,771,553 271,223 — 20,974 — 57,505 2,999,877 2019 2,854,897 1,928,880 1,147,777 49,699 — 68,772 892,020 78,067 1,378,312 | |||
| Compensation Actually Paid vs. Total Shareholder Return [Text Block] | ||||
| Compensation Actually Paid vs. Net Income [Text Block] | ||||
| Compensation Actually Paid vs. Company Selected Measure [Text Block] | ||||
| Tabular List [Table Text Block] | Financial Performance Measures. The most important financial performance measures used by the Company in setting pay-for-performance non-financial Significant Financial Performance Measures Core FFO Per Share Growth TSR Performance (versus the TSR of the S&P 500 Equity REITs Index) TSR Performance (versus the Company’s Self-Storage REIT Competitors) | |||
| Total Shareholder Return Amount | $ 163 | 205 | 123 | 109 |
| Peer Group Total Shareholder Return Amount | 130 | 178 | 123 | 127 |
| Net Income (Loss) | $ 4,366,274 | $ 1,959,639 | $ 1,361,227 | $ 1,525,651 |
| Company Selected Measure Amount | 15.92 | 12.93 | 10.61 | 10.75 |
| PEO Name | Joseph D. Russell | |||
| Measure [Axis]: 1 | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Measure Name | Core FFO Per Share Growth | |||
| Measure [Axis]: 2 | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Measure Name | TSR Performance (versus the TSR of the S&P 500 Equity REITs Index) | |||
| Measure [Axis]: 3 | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Measure Name | TSR Performance (versus the Company’s Self-Storage REIT Competitors) | |||
| PEO [Member] | SCT Equity Awards [Member] | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | $ (7,039,242) | $ (8,149,753) | $ (3,454,528) | $ (2,873,000) |
| PEO [Member] | Value of New Unvested Awards [Member] | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | 6,790,064 | 23,991,640 | 2,426,400 | 1,479,800 |
| PEO [Member] | Change in Value of Prior Years Unvested Awards [Member] | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | (11,479,301) | 14,299,544 | 627,126 | 166,619 |
| PEO [Member] | Value of New Vested Awards [Member] | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | 0 | 0 | 0 | 0 |
| PEO [Member] | Change in Value of Prior Years Vested Awards [Member] | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | (74,804) | 382,986 | 24,573 | 152,395 |
| PEO [Member] | Value of Forfeited Prior Years Awards [Member] | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | 0 | 0 | 0 | 0 |
| PEO [Member] | Dividends on Unvested Awards or Accrued Dividends [Member] | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | 699,536 | 153,000 | 113,000 | 145,000 |
| PEO [Member] | Realized Pay [Member] | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | 5,431,540 | 3,845,336 | 2,400,973 | 2,166,281 |
| Non-PEO NEO [Member] | SCT Equity Awards [Member] | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | (3,686,458) | (4,771,302) | (2,295,972) | (1,928,880) |
| Non-PEO NEO [Member] | Value of New Unvested Awards [Member] | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | 3,555,957 | 14,860,625 | 1,771,553 | 1,147,777 |
| Non-PEO NEO [Member] | Change in Value of Prior Years Unvested Awards [Member] | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | (7,193,033) | 8,860,496 | 271,223 | 49,699 |
| Non-PEO NEO [Member] | Value of New Vested Awards [Member] | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | 0 | 0 | 0 | 0 |
| Non-PEO NEO [Member] | Change in Value of Prior Years Vested Awards [Member] | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | (68,454) | 349,979 | 20,974 | 68,772 |
| Non-PEO NEO [Member] | Value of Forfeited Prior Years Awards [Member] | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | 0 | 0 | 0 | (892,020) |
| Non-PEO NEO [Member] | Dividends on Unvested Awards or Accrued Dividends [Member] | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | 364,288 | 87,375 | 57,505 | 78,067 |
| Non-PEO NEO [Member] | Realized Pay [Member] | ||||
| Pay vs Performance Disclosure [Table] | ||||
| Adjustment to Compensation Amount | $ 2,590,905 | $ 2,231,378 | $ 1,427,702 | $ 1,497,059 |
