Document And Entity Information [Abstract] Statement [Table] Class of Stock [Axis] Class Of Stock [Domain] Class of Stock [Domain] Common Stock [Member] Common Shares [Member] Outstanding nonredeemable series W preferred stock or outstanding series W preferred stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer. Series W Preferred Stock [Member] Series W Preferred Stock [Member] Outstanding nonredeemable series X preferred stock or outstanding series X preferred stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer. Series X Preferred Stock [Member] Series X Preferred Stock [Member] Series B Preferred Stock [Member] Series B Preferred Stock [Member] Series C Preferred Stock [Member] Series C Preferred Stock [Member] Series D Preferred Stock [Member] Series D Preferred Stock [Member] Series E Preferred Stock [Member] Series E Preferred Stock [Member] Series F Preferred Stock [Member] Series F Preferred Stock [Member] Series G Preferred Stock [Member] Series G Preferred Stock [Member] Series H Preferred Stock [Member] Series H Preferred Stock [Member] Outstanding nonredeemable series I preferred stock or outstanding series I preferred stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer. Series I Preferred Stock [Member] Series I Preferred Stock [Member] Outstanding nonredeemable series J preferred stock or outstanding series J preferred stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer. Series J Preferred Stock [Member] Series J Preferred Stock [Member] Outstanding nonredeemable series K preferred stock or outstanding series K preferred stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer. Series K Preferred Stock [Member] Series K Preferred Stock [Member] Outstanding nonredeemable series L preferred stock or outstanding series L preferred stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer. Series L Preferred Stock [Member] Series L Preferred Stock [Member] Notes Due 2032 [Member] Notes Due2032 [Member] Notes Due 2032 [Member] Statement [Line Items] Document Type Document Quarterly Report Current Fiscal Year End Date Document Period End Date Document Fiscal Year Focus Document Transition Report Entity File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, City or Town Entity Address, State or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Title of 12(b) Security Trading Symbol Security Exchange Name Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Shell Company Entity Common Stock, Shares Outstanding Amendment Flag Document Fiscal Period Focus Entity Central Index Key Balance Sheets [Abstract] Assets [Abstract] ASSETS Cash and Cash Equivalents, at Carrying Value Cash and equivalents Cash and equivalents Cash and equivalents Real estate facilities, at cost: Land Land Investment Building and Building Improvements Buildings Real Estate Investment Property, at Cost Ending balance (Operating facilities, at cost) Beginning balance (Operating facilities, at cost) Real estate facilities, gross Real Estate Investment Property, Accumulated Depreciation Accumulated depreciation Ending balance (Accumulated depreciation) Beginning balance (Accumulated depreciation) The net book value of real estate property held for investment purposes. Excludes (1) construction in process and (2) development in process. Real Estate Facilities, Net Real estate facilities, net Development in Process Ending balance (Construction in process) Beginning balance (Construction in process) Construction in process Real Estate Investment Property, Net Total real estate facilities Total real estate facilities at June 30, 2020 Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Investments in Unconsolidated Real Estate Entities Investments in unconsolidated real estate entities Intangible Assets, Net (Including Goodwill) Goodwill and other intangible assets, net Other Assets Other assets Assets Total assets Liabilities and Stockholders' Equity [Abstract] LIABILITIES AND EQUITY Long-term Debt Notes payable Book Value Redeemable Noncontrolling Interest, Equity, Preferred, Redemption Value Preferred shares called for redemption (Note 8) Accrued Liabilities Current And Noncurrent Accrued and other liabilities Liabilities Total liabilities Commitments and Contingencies Commitments and contingencies (Note 12) Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Equity: Stockholders' Equity Attributable to Parent [Abstract] Public Storage shareholders' equity: Preferred Stock, Value, Issued Preferred Shares, $0.01 par value, 100,000,000 shares authorized, 165,400 shares issued (in series) and outstanding, (162,600 at December 31, 2019), at liquidation preference Common Stock, Value, Issued Common Shares, $0.10 par value, 650,000,000 shares authorized, 174,498,918 shares issued and outstanding (174,418,615 shares at December 31, 2019) Additional Paid in Capital Paid-in capital Retained Earnings (Accumulated Deficit) Accumulated deficit Accumulated Other Comprehensive Income (Loss), Net Of Tax Accumulated other comprehensive loss Stockholders' Equity Attributable to Parent Total Public Storage shareholders’ equity Stockholders' Equity Attributable to Noncontrolling Interest Noncontrolling interests Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Balances Balances Total equity Liabilities and Equity Total liabilities and equity Preferred Stock, Par or Stated Value Per Share Preferred stock, par value Preferred Stock, Shares Authorized Preferred stock, shares authorized Preferred Stock, Shares Issued Preferred stock, shares issued Preferred Stock, Shares Outstanding Preferred stock, shares outstanding Common Stock, Par or Stated Value Per Share Common stock, par value Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares, Issued Common stock, shares issued Common Stock, Shares, Outstanding Common stock, shares outstanding Statements Of Income [Abstract] Product and Service [Axis] Products And Services [Domain] Product and Service [Domain] Self-Storage Operations [Member] Self Storage Operations [Member] Self-Storage Operations [Member] Ancillary Operations [Member] Ancillary Operations [Member] Ancillary Operations [Member] Revenues: Revenues Revenue Revenues Costs and Expenses [Abstract] Expenses: Direct Costs of Leased and Rented Property or Equipment Cost of operations Self-storage cost of operations Other Cost of Operating Revenue Cost of operations Ancillary cost of operations Depreciation and Amortization Depreciation and amortization Depreciation and amortization General and Administrative Expense General and administrative General and administrative Interest Expense Interest expense Interest expense Costs and Expenses Operating expenses Operating Income (Loss) Net operating income Nonoperating Income (Expense) [Abstract] Other increases to net income: Investment Income, Net Interest and other income Income (Loss) from Equity Method Investments Equity in earnings of unconsolidated real estate entities Equity in Earnings of Unconsolidated Real Estate Entities Equity in earnings of unconsolidated real estate entities Amount before tax of foreign currency transaction realized and unrealized gain or loss recognized in the income statement. Foreign Exchange Fluctuation Foreign currency exchange loss (gain) Foreign currency exchange (loss) gain Gains (Losses) on Sales of Investment Real Estate Gain on sale of real estate Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income Net income Income (Loss) Attributable to Noncontrolling Interest Allocation to noncontrolling interests Net income allocated to noncontrolling interests Net Income (Loss) Attributable to Parent Net income allocable to Public Storage shareholders Income Amounts Attributable to Parent, Disclosures [Abstract] Allocation of net income to: Preferred Stock Dividends Income Statement Impact Preferred shareholders- distributions Preferred share dividends Preferred Stock Redemption Premium Preferred shareholders - redemptions (Note 8) EITF D-42 allocations Income allocation to holders of restricted share units. Restricted share units Restricted share units Net Income (Loss) Available to Common Stockholders, Basic Net income allocable to common shareholders Earnings Per Share, Basic and Diluted [Abstract] Net income per common share: Earnings Per Share, Basic Basic Earnings Per Share, Diluted Diluted Weighted Average Number of Shares Outstanding, Basic Basic weighted average common shares outstanding Weighted Average Number of Shares Outstanding, Diluted Diluted weighted average common shares outstanding Diluted weighted average common shares outstanding Statements Of Comprehensive Income [Abstract] Other Comprehensive Income (Loss), Net of Tax [Abstract] Other comprehensive income (loss): Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax Aggregate foreign currency exchange loss Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Adjust for aggregate foreign currency exchange loss (gain) included in net income Other Comprehensive Income (Loss), Net of Tax Other comprehensive income (loss) (Note 2) Other comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Total comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Allocation to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income allocable to Public Storage shareholders Statement Of Equity [Abstract] Statement, Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Preferred Stock [Member] Cumulative Preferred Shares [Member] Additional Paid In Capital [Member] Paid-In Capital [Member] Retained Earnings [Member] Accumulated Deficit [Member] Accumulated Other Comprehensive Income [Member] Accumulated Other Comprehensive Loss [Member] Parent [Member] Total Public Storage Shareholders' Equity [Member] Noncontrolling Interest [Member] Noncontrolling Interests [Member] Stock Issued During Period, Value, New Issues Issuance of preferred shares (Note 8) Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs Issuance of preferred shares (Note 8), adjustment to APIC Stock Repurchased During Period, Value Redemption of preferred shares (Note 8) Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture Issuance of common shares in connection with share-based compensation (Note 10) This element represents the amount of recognized share-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized), less cash paid in lieu of shares issued for employee taxes with respect to vested restricted stock units. Stock Based Compensation Expense Share-based compensation expense, net of cash paid in lieu of common shares Acquisition Of Redeemable Noncontrolling Interests Acquisition Of Redeemable Noncontrolling Interests Acquisition of noncontrolling interests Contributions by noncontrolling interests Contributions by noncontrolling interets Contributions by noncontrolling interests Distributions to: Dividends, Preferred Stock Preferred shareholders (Note 8) Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Noncontrolling interests Distributions paid Dividends, Common Stock Common shareholders and restricted share unitholders ($2.00 per share) Stock Issued During Period, Shares, New Issues Issuance of preferred shares, shares Stock Repurchased During Period, Shares Redemption of preferred shares, shares Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture Issuance of common shares in connection with share-based compensation, shares Common Stock, Dividends, Per Share, Declared Common shareholders and restricted share unitholders, per share distribution Statements Of Cash Flows [Abstract] Cash and Cash Equivalents, Period Increase (Decrease) Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities, Continuing Operations Adjustments to reconcile net income to net cash flows from operating activities: Gain (Loss) on Disposition of Property Plant Equipment Gain on real estate investment sales Depreciation, Depletion and Amortization Depreciation and amortization Distributions from cumulative equity in earnings of unconsolidated real estate entities Distributions Received From Real Estate Entities Distributions from cumulative equity in earnings of unconsolidated real estate entities Share-based Compensation Share-based compensation expense Increase (Decrease) in Other Operating Assets and Liabilities, Net Other Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities Total adjustments Net Cash Provided by (Used in) Operating Activities Net cash flows from operating activities Cash flows from investing activities: Sum of payments for capitalized expenditures to maintain existing facilities, costs incurred during the period and in previous periods. Capital Expenditures to Maintain Real Estate Facilities Capital expenditures to maintain real estate facilities The cash outflow from construction costs to date on capital projects, and assets being constructed, while in process before being placed into service. Development and Expansion of Real Estate Facilities Development and expansion of real estate facilities Payments to Acquire Real Estate Acquisition of real estate facilities and intangible assets Distributions in Excess of Cumulative Equity in Earnings from Unconsolidated Real Estate Entities Distributions in Excess of Cumulative Equity in Earnings from Unconsolidated Real Estate Entities Distributions in excess of cumulative equity in earnings from unconsolidated real estate entities Repayment of Notes Receivable Repayment of Notes Receivable Repayment of note receivable Proceeds From Sales Of Real Estate And Other Real Estate Investments Proceeds from sale of real estate investments Net Cash Provided by (Used in) Investing Activities Net cash flows used in investing activities Cash flows from financing activities: Repayments of Notes Payable Repayments on notes payable Proceeds from Issuance of Debt Issuance of notes payable, net of issuance costs Proceeds from Issuance of Preferred Stock and Preference Stock Issuance of preferred shares Gross proceeds from issuance of preferred stock Proceeds from Issuance of Common Stock Issuance of common shares Payments for Repurchase of Preferred Stock and Preference Stock Redemption of preferred shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Total Share-based Liabilities Paid Cash paid upon vesting of restricted share units Cash paid in exchange for common shares issued Acquisition of redeemable noncontrolling interests in subsidiaries. Acquisition Of Redeemable Noncontrolling Interests In Subsidiaries Acquisition of noncontrolling interests Proceeds from Noncontrolling Interests Contributions by noncontrolling interests Distributions paid to Public Storage shareholders Distributions paid to preferred shareholders, common shareholders and restricted share unitholders Payments of Dividends, Noncontrolling Interest Distributions paid to noncontrolling interests Net Cash Provided by (Used in) Financing Activities Net cash flows from (used in) financing activities Net Cash Provided by (Used in) Continuing Operations Net cash flows from (used in) operating, investing, and financing activities Effect of Exchange Rate on Cash and Cash Equivalents Net effect of foreign exchange translation Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Increase (decrease) in cash and equivalents, including restricted cash Cash, equivalents, and restricted cash at beginning of period [Abstract] Cash Equivalents And Restricted Cash At Beginning Of Period [Abstract] Cash and equivalents, including restricted cash at beginning of the period: Restricted Cash Restricted cash included in other assets Restricted cash included in other assets Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash, equivalents, and restricted cash Cash, equivalents, and restricted cash Cash, equivalents, and restricted cash at end of period [Abstract] Cash Equivalents And Restricted Cash At End Of Period [Abstract] Cash and equivalents, including restricted cash at end of the period: Noncash or Part Noncash Acquisition, Net Nonmonetary Assets Acquired (Liabilities Assumed) Supplemental schedule of non-cash investing and financing activities: Accrued Development Costs And Capital Expenditures [Abstract] Accrued Development Costs And Capital Expenditures [Abstract] Costs incurred during the period remaining unpaid at period end for: Capital expenditures to maintain real estate facilities Capital Expenditures To Maintain Real Estate Facilites Capital expenditures to maintain real estate facilities Construction in process Construction In Process Construction or expansion of real estate facilities Accrued and other liabilities Accrued and Other Liabilities Accrued and other liabilities Real estate acquired in exchange for assumption of note payable. Real Estate Acquired In Exchange For Assumption Of Note Payable Real estate acquired in exchange for assumption of notes payable Note payable assumed in connection with acquisition of real estate. Note Payable Assumed In Connection With Acquisition Of Real Estate Notes payable assumed in connection with acquisition of real estate Preferred Shares Called For Redemption And Reclassified To Liabilities Preferred Shares Called For Redemption And Reclassified To Liabilities Preferred shares called for redemption and reclassified to liabilities Preferred shares called for redemption and reclassified from equity. Preferred Shares Called For Redemption And Reclassified From Equity Preferred shares called for redemption and reclassified from equity Other Noncash Investing and Financing Items [Abstract] Other disclosures: Foreign Currency Translation Adjustment [Abstract] Foreign Currency Translation Adjustment [Abstract] Foreign currency translation adjustment: Investment in Real Estate Entities, Foreign Currency Translation Adjustment Investment in Real Estate Entities, Foreign Currency Translation Adjustment Investments in unconsolidated real estate entities Notes Payable, Foreign Currency Translation Adjustment Notes Payable, Foreign Currency Translation Adjustment Notes payable Accumulated Other Comprehensive Loss (Income), Foreign Currency Translation Adjustment Accumulated Other Comprehensive Loss (Income), Foreign Currency Translation Adjustment Accumulated other comprehensive loss Description Of The Business [Abstract] Nature of Operations [Text Block] Description Of The Business Summary Of Significant Accounting Policies [Abstract] Significant Accounting Policies [Text Block] Summary Of Significant Accounting Policies Real Estate Facilities [Abstract] Real Estate Disclosure [Text Block] Real Estate Facilities Investments In Unconsolidated Real Estate Entities [Abstract] Equity Method Investments Disclosure [Text Block] Investments In Unconsolidated Real Estate Entities Credit Facility [Abstract] Credit Facility [Text Block] Credit Facility [Text Block] Credit Facility Notes Payable [Abstract] Debt Disclosure [Text Block] Notes Payable Noncontrolling Interests [Abstract] Noncontrolling Interest Disclosure [Text Block] Noncontrolling Interests Shareholders’ Equity [Abstract] Stockholders' Equity Note Disclosure [Text Block] Shareholders' Equity Related Party Transactions [Abstract] Related Party Transactions Disclosure [Text Block] Related Party Transactions Share-Based Compensation [Abstract] Share-based Payment Arrangement [Text Block] Share-Based Compensation Segment Information [Abstract] Segment Reporting Disclosure [Text Block] Segment Information Commitments And Contingencies [Abstract] Commitments and Contingencies Disclosure [Text Block] Commitments And Contingencies Subsequent Events [Abstract] Subsequent Events [Text Block] Subsequent Events Basis of Accounting [Text Block] Basis of Presentation Consolidation, Policy [Text Block] Consolidation and Equity Method of Accounting Use of Estimates, Policy [Policy Text Block] Use of Estimates Income Tax, Policy [Text Block] Income Taxes Describes the company's policies for real estate facilities. Real Estate Facilities Policy Text Block Real Estate Facilities Other Assets [Policy Text Block] Other Assets [Policy Text Block] Other Assets Accrued And Other Liabilities [Policy Text Block] Accrued And Other Liabilities [Policy Text Block] Accrued and Other Liabilities Cash Equivalents, Restricted Cash, And Marketable Securities, Policy [Policy Text Block] Cash Equivalents And Marketable Securities, Policy [Policy Text Block] Cash Equivalents, Restricted Cash, Marketable Securities and Other Financial Instruments Fair Value Measurement, Policy [Policy Text Block] Fair Value Currency And Credit Risk, Policy [Policy Text Block] Currency And Credit Risk, Policy [Policy Text Block] Currency and Credit Risk Goodwill and Intangible Assets, Policy [Text Block] Goodwill and Other Intangible Assets Evaluation Of Asset Impairment Policy Text Block Evaluation Of Asset Impairment Policy Text Block Evaluation of Asset Impairment Revenue And Expense Recognition, Policy [Policy Text Block] Revenue and Expense Recognition Foreign Currency Transactions and Translations Policy [Text Block] Foreign Currency Exchange Translation Comprehensive Income (Loss) Note [Text Block] Comprehensive Income New Accounting Pronouncements, Policy [Policy Text Block] Recent Accounting Pronouncements And Guidance Coronavirus Pandemic Policy [Policy Text Block] Coronavirus Pandemic Policy [Policy Text Block] COVID-19 Pandemic Earnings Per Share, Policy [Text Block] Net Income Per Common Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Net Income Per Common Share Activity In Real Estate Facilities [Text Block] Activity In Real Estate Facilities [Text Block] Schedule Of Real Estate Activities Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Line Items] Schedule Of Investments In Real Estate And Equity In Earnings Of Real Estate Schedule Of Investments In Real Estate And Equity In Earnings Of Real Estate Schedule Of Investments In Real Estate Entities And Equity In Earnings Of Real Estate Entities Schedule of Debt [Table Text Block] Notes Payable Schedule of Maturities of Long-term Debt [Table Text Block] Maturities Of Notes Payable Schedule of Stock by Class [Text Block] Preferred Shares Outstanding Schedule of Segment Reporting Information, by Segment [Text Block] Summary Of Segment Information Nature Of Business [Table] Nature Of Business [Table] Investment, Name [Axis] Equity Method Investee Name [Domain] Equity Method Investee, Name [Domain] Shurgard Self Storage SA [Member] Shurgard Self Storage Sa [Member] Shurgard [Member] P S Business Parks [Member] P S Business Parks [Member] PSB [Member] Legal Entity [Axis] Entity [Domain] Entity [Domain] Public Storage [Member] Public Storage [Member] Public Storage [Member] Commercial and Retail Space [Member] Commercial And Retail Space [Member] Commercial and Retail Space [Member] Nature Of Business [Line Items] Nature Of Business [Line Items] Number of self-storage facilities direct and indirect interest. Direct And Indirect Interest Self Storage Facilities PSA self-storage facilities Net rentable square feet. Net Rentable Square Feet Net rentable square feet Net rentable square feet Number of States in which Entity Operates Number of states with facilities Shares Outstanding Shares owned Equity Method Investment, Ownership Percentage Ownership interest, percentage Owned Self Storage Facilities Owned Self Storage Facilities Owned self-storage facilites Number of self-storage facilities owned Number of Real Estate Properties Number of self-storage facilities Number of facilities owned by Shurgard Number of Countries in which Entity Operates Number of countries in which entity operates Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Geographical [Axis] Segment Geographical [Domain] Segment, Geographical [Domain] U [S] U.S. [Member] Summary Of Significant Accounting Policies [Line Items]. Summary Of Significant Accounting Policies [Line Items] Owned Commercial Facilities in the U.S. Owned Commercial Facilities Commercial facilities in U.S. Percentage Of Real Estate Investment Trust Taxable Income Distributed For Exemption Of Federal Income Tax Percentage Of Real Estate Investment Trust Taxable Income Distributed For Exemption Of Federal Income Tax Percentage of taxable income distributed for exemption of federal income tax Income Tax Expense (Benefit) Income tax expense Unrecognized Tax Benefits Unrecognized tax benefits Range [Axis] Range [Member] Range [Domain] Maximum [Member] Maximum [Member] Minimum [Member] Minimum [Member] Property, Plant and Equipment, Useful Life Estimated useful lives of buildings and improvements Gain (Loss) on Sale, Percentage of Interest in Real Estate Sold at Fair Value Gain (Loss) on Sale, Percentage of Interest in Real Estate Sold at Fair Value Percentage of interest in real estate sold at fair value Receivable with Imputed Interest, Face Amount Note receivable, contractual value Interest and Other Income Interest and other income Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Line Items] Goodwill Goodwill balance Indefinite-lived Intangible Assets Shurgard trade name, book value Finite-Lived Intangible Assets, Net In-place and leasehold interests in land, net book value Finite-Lived Intangible Assets, Accumulated Amortization In-place and leasehold interests in land, accumulated amortization Finite-Lived Intangible Assets, Amortization Expense In-place and leasehold interests in land, amortization expense Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year Estimated future amortization expense, remainder of 2020 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Estimated future amortization expense, 2021 Finite-Lived Intangible Assets, Amortization Expense, Thereafter Finite-Lived Intangible Assets, Amortization Expense, Thereafter Estimated future amortization expense, thereafter Increase (Decrease) in Intangible Assets, Current Increase in in-place and leasehold interests in land Goodwill and Intangible Asset Impairment Impairments Trading Activities, Gain and Losses, by Type, by Income Statement Location [Table] Weighted Average [Member] Weighted Average [Member] Trading Activity, Gains and Losses, Net [Line Items] Foreign Currency Exchange Rate, Translation Exchange rate translation Foreign exchange rate. Foreign Currency Exchange Rate Exchange rate Weighted Average Number Diluted Shares Outstanding Adjustment Net effect of dilutive stock options - based on treasury stock method Schedule Of Real Estate Facilities [Table] Schedule Of Real Estate Facilities [Table] Business Acquisition [Axis] Business Acquisition Acquiree [Domain] Business Acquisition, Acquiree [Domain] Acquisition Of Self Storage Facilities [Member] Acquisition Of Self Storage Facilities [Member] Acquisition Of Self-Storage Facilities Other Investments [Member] Expansion Projects [Member] Expansion Projects [Member] Newly Developed and Expansion Projects [Member] Property, Plant and Equipment by Type [Axis] Property Plant And Equipment Type [Domain] Property, Plant and Equipment, Type [Domain] Completed Development and Expansion Project [Member] Completed Development And Expansion Project [Member] Completed Developed and Expansion Project [Member] Schedule Of Real Estate Facilities [Line Items] Schedule Of Real Estate Facilities [Line Items] Number Of Operating Self Storage Facilities Number Of Operating Self Storage Facilities Number of operating self-storage facilities Business Combination, Consideration Transferred, Including Equity Interest in Acquiree Held Prior to Combination Total cost of acquisition Intangible Assets, Net (Excluding Goodwill) Allocated to intangible assets Aggregate costs to develop new self-storge facilities and expand exisiting self-storage facilities. Aggregate Costs to Develop And Expand Aggregate costs to develop and expand Additional Net Rentable Square Feet Additional Net Rentable Square Feet Addtional net rentable square feet Development in Process, Write-Off of Cancelled Projects Development in Process, Write-Off of Cancelled Projects Write-off of cancelled projects Write-off of cancelled projects Increase (Decrease) in Accrued Development in Process Increase (Decrease) in Accrued Development in Process Increase (decrease) in accrued unpaid construction costs Increase (Decrease) in Accrued Capital Improvements Increase (Decrease) in Accrued Capital Improvements Increase (decrease) in accrued capital expenditures to maintain real estate facilities Real Estate Investment Property At Cost, Capital Improvements Real Estate Investment Property At Cost, Capital Improvements Capital expenditures to maintain real estate facilities Allocated To Real Estate Facilities Allocated To Real Estate Facilities Acquisitions Real Estate Investment Property At Cost, Disposition Of Real Estate Facilities Real Estate Investment Property At Cost, Disposition Of Real Estate Facilities Dispositions Real Estate Investment Property At Cost, Newly Developed Facilities Opened For Operation Real Estate Investment Property At Cost, Newly Developed Facilities Opened For Operation Developed or expanded facilities opened for operation Depreciation Depreciation expense Development in Process, Current Development in Process, Current Costs incurred to develop and expand real estate facilities Development in Process, Developed or Redeveloped Facilities Opened for Operation Development in Process, Developed or Redeveloped Facilities Opened for Operation Developed or expanded facilities opened for operations Investment Owned, Balance, Shares Common stock owned of PSB Limited partnership units in PS Business Parks owned by Public Storage. Investment Owned Balance Units Limited partnership units in PSB Limited partnership units option to convert to common stock, conversion basis. Investment Owned Units Conversion Basis Limited partnership units option to convert to common stock, conversion basis. Closing Share Price Closing Share Price Closing price per share Equity Method Investment, Quoted Market Value Market value Proceeds from Equity Method Investment, Distribution Cash distribution received Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Basis differential Amortization of Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Amortization of Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Amortization of basis differential License [Member] Trademark License [Member] Change in Investment from Foreign Currency Exchange Rates Change in Investment from Foreign Currency Exchange Rates Change in investment from foreign currency exchange rates Common Stock, Dividends, Per Share, Cash Paid Common stock dividends paid per share Schedule Of Debt [Table] Schedule Of Debt [Table] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility [Member] Credit Facility [Member] Schedule Of Debt [Line Items] Schedule Of Debt [Line Items] Line of Credit Facility, Maximum Borrowing Capacity Credit Facility borrowing capacity Line of Credit Facility, Expiration Date Expiration of Credit Facility Debt Instrument, Basis Spread on Variable Rate Interest rate spread (LIBOR) Line of Credit Facility, Frequency of Commitment Fee Payment Frequency of commitment fee Line of Credit Facility, Commitment Fee Percentage Commitment fee percentage Line of Credit Facility, Amount Outstanding Outstanding borrowings Line of Credit Facility, Increase (Decrease), Other, Net Reduction in borrowing capacity to amount of letters of credit Schedule of Long-term Debt Instruments [Table] Long-term Debt, Type [Axis] Longterm Debt Type [Domain] Long-term Debt, Type [Domain] U.S. Dollar Denominated Unsecured Debt [Member] U.s. Dollar Denominated Unsecured Debt [Member] U.S. Dollar Denominated Unsecured Debt [Member] Euro Denominated Unsecured Debt [Member] Euro Denominated Unsecured Debt [Member] Euro Denominated Unsecured Debt [Member] Debt Instrument [Axis] Debt Instrument Name [Domain] Debt Instrument, Name [Domain] Notes Due May 2029 [Member] Notes Due May2029 [Member] Notes Due May 1, 2029 [Member] Notes Due November 2025 [Member] Notes Due November2025 [Member] Notes Due November 3, 2025 [Member] Notes Due April 2024 [Member] Notes Due April2024 [Member] Notes Due April 12, 2024 [Member] Note Payable [Member] Note Payable [Member] Mortgage Notes [Member] Maximum Covenant [Member] Maximum Covenant [Member] Maximum Covenant [Member] Debt Instrument [Line Items] Debt Instrument, Issuance Date Issuance date Number of Tranches Number of Tranches Number of tranches Debt Instrument, Face Amount Debt issuance amount Debt Issuance Costs, Gross Debt issuance costs Debt Instrument, Interest Rate, Stated Percentage Interest rate Coupon Rate Debt Instrument, Maturity Date Maturity date Debt to Total Assets Ratio Debt to Total Assets Ratio Debt to Total Assets ratio Earnings Before Interest Taxes Depreciation And Amortization To Intertest Expense Ratio Earnings Before Interest Taxes Depreciation And Amortization To Intertest Expense Ratio Adjusted EBTIDA to interest Expense ratio Interest Paid Cash paid for interest expense Real Estate Inventory, Capitalized Interest Costs Interest capitalized as real estate Mortgages [Member] Mortgage Debt [Member] Notes Due September, 2022 [Member] Notes Due September2022 [Member] Notes Due September 15, 2022 [Member] Notes due, September, 2027 [Member] Notes Due September2027 [Member] Notes Due September 15, 2027 [Member] Notes Due January 24, 2032 [Member] Notes Due January242032 [Member] Notes Due January 24, 2032 [Member] Debt Instrument, Interest Rate, Effective Percentage Effective Rate Long-term Debt, Gross Total debt Principal Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Unamortized Costs Long-term Debt, Fair Value Fair Value Number of Real Estate Facilities That Are Securing Debt Number of Real Estate Facilities That Are Securing Debt Real estate facilities securing debt The net book value for the real estate facilities secured by the mortgage note payable at the end of the reporting period. Net Book Value Of Real Estate Facilities Securing Notes Payable Net book value of real estate facilities securing notes payable Unsecured Debt [Member] Unsecured Debt [Member] Notes Payable To Banks [Member] Total [Member] Amount of long-term debt, gross payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Long-term Debt, Gross, Maturities, Repayments of Principal, Remainder of Fiscal Year Remainder of 2020 Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Long-term Debt, Gross, Maturities, Repayments of Principal in Next Twelve Months 2021 Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Long-term Debt, Gross, Maturities, Repayments of Principal in Year Two 2022 Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Long-term Debt, Gross, Maturities, Repayments of Principal in Year Three 2023 Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Long-term Debt, Gross, Maturities, Repayments of Principal in Year Four 2024 Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Long-term Debt, Gross, Maturities, Repayments of Principal after Year Five Thereafter Debt, Weighted Average Interest Rate Weighted average effective rate Noncontrolling Interest [Table] Noncontrolling Interest [Line Items] The number of facilities owned by the 28 entities that Public Storage has permanent noncontrolling interests in at the end of the reporting period. Permanent Noncontrolling Interests In Subsidiaries Number Of Self Storage Facilities Permanent noncontrolling interest in subsidiaries, number of self-storage facilities The number of facilities under construction, owned by the 28 entities that Public Storage has permanent noncontrolling interests in at the end of the reporting period Permanent Noncotrolling Interest In Subsidaries, Number Of Self-Storage Facilities Under Construction Permanent noncontrolling interest in subsidiaries, number of self-storage facilities under construction Partnership Units Conversion Ratio to Common Shares Partnership Units Conversion Ratio Partnership units conversion ratio Convertible Partnership Units. Convertible Partnership Units Convertible partnership units Allocated income of our other permanent noncontrolling interests in subsidiaries for the reporting period. Other Permanent Noncontrolling Interests In Subsidiaries Income allocated to other permanent noncontrolling interest in subsidiaries Schedule of Stock by Class [Table] Class of Stock [Line Items] Number of quarterly dividends in arrearage before preferred shareholders can elect additional board members. Cumulative Arrearage Of Quarterly Dividends Number of quarterly dividends in arrearage before preferred shareholders can elect additional board members Number of additional board members the preferred shareholders can elect in the case of an excess arrearage of quarterly dividends Number Of Additional Members Right To Elect Number of additional board members the preferred shareholders can elect in the case of an excess arrearage of quarterly dividends Preferred Stock, Amount of Preferred Dividends in Arrears Amount of preferred dividends in arrears Affirmative Vote of Outstanding Shares of a Series of Preferred Shares Required for any Material and Adverse Amendment to the Terms of Series, Percent Affirmative Vote of Outstanding Shares of a Series of Preferred Shares Required for any Material and Adverse Amendment to the Terms of Series, Percent Affirmative vote of outstanding shares of a series of Preferred Shares required for any material and adverse amendment to the terms of series, percent Affirmative Vote of Outstanding Shares of all Preferred Shares, Voting as a Single Class, Required to Issue Shares Ranking Senior to Preferred Shares, Percent Affirmative Vote of Outstanding Shares of all Preferred Shares, Voting as a Single Class, Required to Issue Shares Ranking Senior to Preferred Shares, Percent Affirmative vote of outstanding shares of all Preferred Shares, voting as a single class, required to issue shares ranking senior to Preferred Shares, percent Preferred Stock, Redemption Price Per Share Redemption price per share Shares, Issued Shares issued Portion Of Share Of Cumulative Preferred Shares. Portion Of Share Of Cumulative Preferred Shares Preferred shares per depositary share Shares Issued, Price Per Share Shares issued, price per share Payments of Stock Issuance Costs Original issuance costs on preferred shares redeemed during the period Preferred Stock, Dividend Rate, Percentage Dividend Rate % Dividend rate percentage Preferred Stock, Liquidation Preference, Value Liquidation Preference Liquidation value (at par) Dividends, Common Stock, Cash Common stock dividends paid in aggregate Outstanding nonredeemable series V preferred stock or outstanding series V preferred stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer. Series V Preferred Stock [Member] Series V Preferred Stock [Member] Preferred Stock, Redemption Date Earliest Redemption Date Schedule of Related Party Transactions, by Related Party [Table] C [A] Canada [Member] Ownership [Axis] Ownership [Domain] Ownership [Domain] Hughes Family [Member] Hughes Family [Member] Hughes Family [Member] Related Party Transaction [Line Items] Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Percentage ownership of common shares outstanding Noncontrolling Interest, Ownership Percentage by Parent Ownership interest Related Party Transaction, Amounts of Transaction Tenants reinsurance premiums earned by subsidiaries Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Share-based Compensation Arrangements by Share-based Payment Award, Award Type and Plan Name [Domain] Employee Stock Option [Member] Stock Options [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Vesting period, number of years Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Expiration period, number of years Allocated Share-based Compensation Expense Compensation expense Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period Stock options granted Stock Issued During Period, Shares, Stock Options Exercised Stock options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Stock options forfeited Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Stock options outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Exercisable, average exercise price per share Restricted Stock Units R S U [Member] Restricted Share Units [Member] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Grants in period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Forfeited in period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Vested in period Common Stock Shares Issued Upon Vesting Common Stock Shares Issued Upon Vesting Common shares issued upon vesting Common Stock Withheld Upon Vesting in Exchange for Tax Deposits Common Stock Withheld Upon Vesting In Exchange For Tax Deposits Common stock withheld upon vesting in exchange for tax deposits Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Restricted share units outstanding Restricted Stock Expense Restricted share unit expense Restricted Stock Units, Taxes Incurred Upon Vesting Restricted Stock Units, Taxes Incurred Upon Vesting Taxes incurred upon vesting of restricted share units Schedule of Segment Reporting Information, by Segment [Table] Statement, Business Segments [Axis] Segment [Domain] Segment [Domain] Invesment in PSB [Member] Invesment In Psb [Member] Invesment in PSB [Member] Equity Investment in Shurgard [Member] Equity Investment In Shurgard [Member] Investment In Shurgard [Member] Allocated to Segments [Member] Allocated To Segments [Member] Allocated to Segments [Member] Other Items Not Allocated To Segments [Member] Other Items Not Allocated To Segments [Member] Other Items Not Allocated To Segments [Member] Segment Reporting Information [Line Items] Deductible for general liability insurance Deductible for general liability Deductible for property insurance Deductible for property Reduced Deductible For Property Reduced Deductible For Property Reduced deductible for property The aggregate maximum losses under our property insurance policies through third-party insurance carriers. Aggregate Maximum Losses, Property Aggregate maximum losses for property The aggregate per occurance limit of coverage under our property insurance policies through third-party insurance carriers. Aggregate per occurance property coverage The aggregate maximum limit of coverage under our property insurance policies through third-party insurance carriers. Aggregate Limit Property Coverage Aggregate limit for property coverage The aggregate maximum limit of coverage under our general liability insurance policies through third-party insurance carriers. Aggregate Limit General Liability Coverage Aggregate limit for general liability coverage The maximum individual limit amount offered under our tenant reinsurance program for goods stored by tenants at our self-storage facilities. Tenant Individual Insurance Limit Maximum Tenant insurance program against claims, maximum amount The minimum amount for which claims paid for individual events must exceed under our third-party insurance coverage. Third-Party Insurance Coverage For Claims Paid Exceeding Amount For Individual Event Third-party insurance coverage for claims paid exceeding amount for individual event The maximum amount of claims paid for individual events under our third-party insurance coverage. Third-Party Insurance Coverage For Claims Paid For Individual Event Limit Third-party limit for insurance coverage claims paid for individual event The number of certificate holders held by tenants at our self-storage facilities participating in our tenant insurance program at the end of the reporting period. Tenant Certificate Holders Participating Individual Insurance Program Tenant certificate holders participating in insurance program, approximate The aggregate coverage of tenant insurance under our tenant insurance program based on the number of certificate holders held by tenants at our self-storage facilities participating in our tenant insurance program at the end of the reporting period. Aggregate Coverage Of Tenants Participating Aggregate coverage of tenants participating in insurance program Contractual Obligation Construction commitments Contractual Obligation, Future Minimum Payments Due, Remainder of Fiscal Year Construction commitments remainder of 2020 Contractual Obligation, Due in Next Fiscal Year Construction commitments 2021 Contractual Obligation, Due in Second Year Construction commitments 2022 Subsequent Event [Table] Subsequent Event [Line Items] Number Of Self-Storage Facilities To Be Acquired Number Of Self-Storage Facilities To Be Acquired Number of self-storage facilities acquired or under contract to be acquired Outstanding nonredeemable series Y preferred stock or outstanding series Y preferred stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer. Series Y Preferred Stock [Member] Series Y Preferred Stock [Member] Outstanding nonredeemable series Z preferred stock or outstanding series Z preferred stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer. Series Z Preferred Stock [Member] Series Z Preferred Stock [Member] Performance Shares [Member] Performance Shares [Member]