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Schedule III - Real Estate And Accumulated Depreciation (Properties Acquired From 2002 To 2005) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Real Estate and Accumulated Depreciation [Line Items]  
2014 Encumbrances $ 64,364us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
Initial Cost, Land 3,417,049us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
Initial Cost, Buildings & Improvements 7,575,693us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
Costs Subsequent to Acquisition 1,975,066us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
Gross Carrying Amount, Land 3,476,883us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
Gross Carrying Amount, Buildings 9,490,925us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
Gross Carrying Amount, Total 12,967,808us-gaap_RealEstateGrossAtCarryingValue
Accumulated Depreciation 4,482,520us-gaap_RealEstateAccumulatedDepreciation
Depreciable life of buildings (years) 25 years
Concord [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 650us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ConcordMember
Initial Cost, Buildings & Improvements 1,332us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ConcordMember
Costs Subsequent to Acquisition 159us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ConcordMember
Gross Carrying Amount, Land 649us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ConcordMember
Gross Carrying Amount, Buildings 1,492us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ConcordMember
Gross Carrying Amount, Total 2,141us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ConcordMember
Accumulated Depreciation 594us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ConcordMember
Tustin [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 962us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TustinMember
Initial Cost, Buildings & Improvements 1,465us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TustinMember
Costs Subsequent to Acquisition 347us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TustinMember
Gross Carrying Amount, Land 962us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TustinMember
Gross Carrying Amount, Buildings 1,812us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TustinMember
Gross Carrying Amount, Total 2,774us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TustinMember
Accumulated Depreciation 842us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TustinMember
Pasadena/Sierra Madre [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 706us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaSierraMadreMember
Initial Cost, Buildings & Improvements 872us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaSierraMadreMember
Costs Subsequent to Acquisition 103us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaSierraMadreMember
Gross Carrying Amount, Land 706us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaSierraMadreMember
Gross Carrying Amount, Buildings 975us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaSierraMadreMember
Gross Carrying Amount, Total 1,681us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaSierraMadreMember
Accumulated Depreciation 409us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaSierraMadreMember
Azusa [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 933us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AzusaMember
Initial Cost, Buildings & Improvements 1,659us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AzusaMember
Costs Subsequent to Acquisition 7,726us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AzusaMember
Gross Carrying Amount, Land 932us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AzusaMember
Gross Carrying Amount, Buildings 9,386us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AzusaMember
Gross Carrying Amount, Total 10,318us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AzusaMember
Accumulated Depreciation 2,716us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AzusaMember
Redlands [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 423us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RedlandsMember
Initial Cost, Buildings & Improvements 1,202us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RedlandsMember
Costs Subsequent to Acquisition 426us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RedlandsMember
Gross Carrying Amount, Land 422us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RedlandsMember
Gross Carrying Amount, Buildings 1,629us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RedlandsMember
Gross Carrying Amount, Total 2,051us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RedlandsMember
Accumulated Depreciation 635us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RedlandsMember
Airport I [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 346us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AirportIMember
Initial Cost, Buildings & Improvements 861us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AirportIMember
Costs Subsequent to Acquisition 407us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AirportIMember
Gross Carrying Amount, Land 347us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AirportIMember
Gross Carrying Amount, Buildings 1,267us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AirportIMember
Gross Carrying Amount, Total 1,614us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AirportIMember
Accumulated Depreciation 663us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AirportIMember
Miami / Marlin Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 562us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiMarlinRoadMember
Initial Cost, Buildings & Improvements 1,345us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiMarlinRoadMember
Costs Subsequent to Acquisition 259us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiMarlinRoadMember
Gross Carrying Amount, Land 562us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiMarlinRoadMember
Gross Carrying Amount, Buildings 1,604us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiMarlinRoadMember
Gross Carrying Amount, Total 2,166us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiMarlinRoadMember
Accumulated Depreciation 760us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiMarlinRoadMember
Riverside [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 95us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiversideMember
Initial Cost, Buildings & Improvements 1,106us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiversideMember
Costs Subsequent to Acquisition 73us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiversideMember
Gross Carrying Amount, Land 94us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiversideMember
Gross Carrying Amount, Buildings 1,180us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiversideMember
Gross Carrying Amount, Total 1,274us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiversideMember
Accumulated Depreciation 498us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiversideMember
Oakland / San Leandro [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 330us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OaklandSanLeandroMember
Initial Cost, Buildings & Improvements 1,116us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OaklandSanLeandroMember
Costs Subsequent to Acquisition 185us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OaklandSanLeandroMember
Gross Carrying Amount, Land 330us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OaklandSanLeandroMember
Gross Carrying Amount, Buildings 1,301us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OaklandSanLeandroMember
Gross Carrying Amount, Total 1,631us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OaklandSanLeandroMember
Accumulated Depreciation 563us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OaklandSanLeandroMember
Richmond / Jacuzzi [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 419us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RichmondJacuzziMember
Initial Cost, Buildings & Improvements 1,224us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RichmondJacuzziMember
Costs Subsequent to Acquisition 91us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RichmondJacuzziMember
Gross Carrying Amount, Land 419us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RichmondJacuzziMember
Gross Carrying Amount, Buildings 1,315us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RichmondJacuzziMember
Gross Carrying Amount, Total 1,734us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RichmondJacuzziMember
Accumulated Depreciation 547us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RichmondJacuzziMember
Santa Clara / Laurel [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 1,178us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaClaraLaurelMember
Initial Cost, Buildings & Improvements 1,789us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaClaraLaurelMember
Costs Subsequent to Acquisition 178us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaClaraLaurelMember
Gross Carrying Amount, Land 1,179us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaClaraLaurelMember
Gross Carrying Amount, Buildings 1,966us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaClaraLaurelMember
Gross Carrying Amount, Total 3,145us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaClaraLaurelMember
Accumulated Depreciation 984us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaClaraLaurelMember
Pembroke Park [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 475us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PembrokeParkMember
Initial Cost, Buildings & Improvements 1,259us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PembrokeParkMember
Costs Subsequent to Acquisition 259us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PembrokeParkMember
Gross Carrying Amount, Land 475us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PembrokeParkMember
Gross Carrying Amount, Buildings 1,518us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PembrokeParkMember
Gross Carrying Amount, Total 1,993us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PembrokeParkMember
Accumulated Depreciation 695us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PembrokeParkMember
Ft. Lauderdale / Sun [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 452us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleSunMember
Initial Cost, Buildings & Improvements 1,254us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleSunMember
Costs Subsequent to Acquisition 295us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleSunMember
Gross Carrying Amount, Land 452us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleSunMember
Gross Carrying Amount, Buildings 1,549us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleSunMember
Gross Carrying Amount, Total 2,001us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleSunMember
Accumulated Depreciation 652us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleSunMember
San Carlos / Shorewa [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 737us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanCarlosShorewaMember
Initial Cost, Buildings & Improvements 1,360us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanCarlosShorewaMember
Costs Subsequent to Acquisition 175us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanCarlosShorewaMember
Gross Carrying Amount, Land 737us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanCarlosShorewaMember
Gross Carrying Amount, Buildings 1,535us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanCarlosShorewaMember
Gross Carrying Amount, Total 2,272us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanCarlosShorewaMember
Accumulated Depreciation 605us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanCarlosShorewaMember
Ft. Lauderdale / Sun II [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 532us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleSunTwoMember
Initial Cost, Buildings & Improvements 1,444us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleSunTwoMember
Costs Subsequent to Acquisition 347us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleSunTwoMember
Gross Carrying Amount, Land 533us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleSunTwoMember
Gross Carrying Amount, Buildings 1,790us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleSunTwoMember
Gross Carrying Amount, Total 2,323us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleSunTwoMember
Accumulated Depreciation 790us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleSunTwoMember
Sacramento / Howe [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 361us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoHoweMember
Initial Cost, Buildings & Improvements 1,181us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoHoweMember
Costs Subsequent to Acquisition 84us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoHoweMember
Gross Carrying Amount, Land 361us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoHoweMember
Gross Carrying Amount, Buildings 1,265us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoHoweMember
Gross Carrying Amount, Total 1,626us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoHoweMember
Accumulated Depreciation 521us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoHoweMember
Sacramento / Capitol [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 186us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoCapitolMember
Initial Cost, Buildings & Improvements 1,284us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoCapitolMember
Costs Subsequent to Acquisition 362us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoCapitolMember
Gross Carrying Amount, Land 186us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoCapitolMember
Gross Carrying Amount, Buildings 1,646us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoCapitolMember
Gross Carrying Amount, Total 1,832us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoCapitolMember
Accumulated Depreciation 866us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoCapitolMember
Miami / Airport [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 517us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiAirportMember
Initial Cost, Buildings & Improvements 915us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiAirportMember
Costs Subsequent to Acquisition 353us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiAirportMember
Gross Carrying Amount, Land 517us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiAirportMember
Gross Carrying Amount, Buildings 1,268us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiAirportMember
Gross Carrying Amount, Total 1,785us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiAirportMember
Accumulated Depreciation 661us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiAirportMember
Marietta / Cobb Park '02 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 419us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaCobbParkTwoThousandAndTwoMember
Initial Cost, Buildings & Improvements 1,571us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaCobbParkTwoThousandAndTwoMember
Costs Subsequent to Acquisition 452us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaCobbParkTwoThousandAndTwoMember
Gross Carrying Amount, Land 420us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaCobbParkTwoThousandAndTwoMember
Gross Carrying Amount, Buildings 2,022us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaCobbParkTwoThousandAndTwoMember
Gross Carrying Amount, Total 2,442us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaCobbParkTwoThousandAndTwoMember
Accumulated Depreciation 1,021us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaCobbParkTwoThousandAndTwoMember
Sacramento / Florin [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 624us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoFlorinMember
Initial Cost, Buildings & Improvements 1,710us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoFlorinMember
Costs Subsequent to Acquisition 1,248us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoFlorinMember
Gross Carrying Amount, Land 623us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoFlorinMember
Gross Carrying Amount, Buildings 2,959us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoFlorinMember
Gross Carrying Amount, Total 3,582us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoFlorinMember
Accumulated Depreciation 1,763us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoFlorinMember
Belmont / Dairy Lane [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 915us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BelmontDairyLaneMember
Initial Cost, Buildings & Improvements 1,252us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BelmontDairyLaneMember
Costs Subsequent to Acquisition 167us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BelmontDairyLaneMember
Gross Carrying Amount, Land 914us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BelmontDairyLaneMember
Gross Carrying Amount, Buildings 1,420us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BelmontDairyLaneMember
Gross Carrying Amount, Total 2,334us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BelmontDairyLaneMember
Accumulated Depreciation 693us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BelmontDairyLaneMember
So. San Fransisco '02 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 1,018us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SouthSanFransiscoTwoThousandAndTwoMember
Initial Cost, Buildings & Improvements 2,464us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SouthSanFransiscoTwoThousandAndTwoMember
Costs Subsequent to Acquisition 435us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SouthSanFransiscoTwoThousandAndTwoMember
Gross Carrying Amount, Land 1,018us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SouthSanFransiscoTwoThousandAndTwoMember
Gross Carrying Amount, Buildings 2,899us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SouthSanFransiscoTwoThousandAndTwoMember
Gross Carrying Amount, Total 3,917us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SouthSanFransiscoTwoThousandAndTwoMember
Accumulated Depreciation 1,308us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SouthSanFransiscoTwoThousandAndTwoMember
Palmdale / P Street [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 218us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PalmdalePStreetMember
Initial Cost, Buildings & Improvements 1,287us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PalmdalePStreetMember
Costs Subsequent to Acquisition 183us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PalmdalePStreetMember
Gross Carrying Amount, Land 218us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PalmdalePStreetMember
Gross Carrying Amount, Buildings 1,470us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PalmdalePStreetMember
Gross Carrying Amount, Total 1,688us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PalmdalePStreetMember
Accumulated Depreciation 647us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PalmdalePStreetMember
Tucker / Montreal Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 760us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TuckerMontrealRdMember
Initial Cost, Buildings & Improvements 1,485us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TuckerMontrealRdMember
Costs Subsequent to Acquisition 308us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TuckerMontrealRdMember
Gross Carrying Amount, Land 758us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TuckerMontrealRdMember
Gross Carrying Amount, Buildings 1,795us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TuckerMontrealRdMember
Gross Carrying Amount, Total 2,553us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TuckerMontrealRdMember
Accumulated Depreciation 785us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TuckerMontrealRdMember
Pasadena / S Fair Oaks [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 1,313us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaSFairOaksMember
Initial Cost, Buildings & Improvements 1,905us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaSFairOaksMember
Costs Subsequent to Acquisition 671us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaSFairOaksMember
Gross Carrying Amount, Land 1,312us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaSFairOaksMember
Gross Carrying Amount, Buildings 2,577us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaSFairOaksMember
Gross Carrying Amount, Total 3,889us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaSFairOaksMember
Accumulated Depreciation 1,182us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaSFairOaksMember
Carmichael / Fair Oaks '02 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 584us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarmichaelFairOaksTwoThousandTwoMember
Initial Cost, Buildings & Improvements 1,431us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarmichaelFairOaksTwoThousandTwoMember
Costs Subsequent to Acquisition 180us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarmichaelFairOaksTwoThousandTwoMember
Gross Carrying Amount, Land 584us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarmichaelFairOaksTwoThousandTwoMember
Gross Carrying Amount, Buildings 1,611us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarmichaelFairOaksTwoThousandTwoMember
Gross Carrying Amount, Total 2,195us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarmichaelFairOaksTwoThousandTwoMember
Accumulated Depreciation 693us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarmichaelFairOaksTwoThousandTwoMember
Carson / Carson St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 507us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarsonCarsonStMember
Initial Cost, Buildings & Improvements 877us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarsonCarsonStMember
Costs Subsequent to Acquisition 200us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarsonCarsonStMember
Gross Carrying Amount, Land 506us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarsonCarsonStMember
Gross Carrying Amount, Buildings 1,078us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarsonCarsonStMember
Gross Carrying Amount, Total 1,584us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarsonCarsonStMember
Accumulated Depreciation 506us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarsonCarsonStMember
San Jose / Felipe Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 517us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanJoseFelipeAveMember
Initial Cost, Buildings & Improvements 1,482us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanJoseFelipeAveMember
Costs Subsequent to Acquisition 162us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanJoseFelipeAveMember
Gross Carrying Amount, Land 516us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanJoseFelipeAveMember
Gross Carrying Amount, Buildings 1,645us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanJoseFelipeAveMember
Gross Carrying Amount, Total 2,161us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanJoseFelipeAveMember
Accumulated Depreciation 775us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanJoseFelipeAveMember
Miami / 27th Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 272us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiTwentySeventhAveMember
Initial Cost, Buildings & Improvements 1,572us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiTwentySeventhAveMember
Costs Subsequent to Acquisition 472us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiTwentySeventhAveMember
Gross Carrying Amount, Land 271us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiTwentySeventhAveMember
Gross Carrying Amount, Buildings 2,045us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiTwentySeventhAveMember
Gross Carrying Amount, Total 2,316us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiTwentySeventhAveMember
Accumulated Depreciation 925us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiTwentySeventhAveMember
San Jose / Capitol [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 400us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanJoseCapitolMember
Initial Cost, Buildings & Improvements 1,183us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanJoseCapitolMember
Costs Subsequent to Acquisition 274us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanJoseCapitolMember
Gross Carrying Amount, Land 401us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanJoseCapitolMember
Gross Carrying Amount, Buildings 1,456us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanJoseCapitolMember
Gross Carrying Amount, Total 1,857us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanJoseCapitolMember
Accumulated Depreciation 600us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanJoseCapitolMember
Tucker / Mountain [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 2002
Initial Cost, Land 519us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TuckerMountainMember
Initial Cost, Buildings & Improvements 1,385us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TuckerMountainMember
Costs Subsequent to Acquisition 333us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TuckerMountainMember
Gross Carrying Amount, Land 520us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TuckerMountainMember
Gross Carrying Amount, Buildings 1,717us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TuckerMountainMember
Gross Carrying Amount, Total 2,237us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TuckerMountainMember
Accumulated Depreciation 724us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TuckerMountainMember
St Charles/Veterans Memorial Pkwy [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 03, 2002
Initial Cost, Land 687us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCharlesVeteransMemorialPkwyMember
Initial Cost, Buildings & Improvements 1,602us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCharlesVeteransMemorialPkwyMember
Costs Subsequent to Acquisition 328us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCharlesVeteransMemorialPkwyMember
Gross Carrying Amount, Land 687us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCharlesVeteransMemorialPkwyMember
Gross Carrying Amount, Buildings 1,930us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCharlesVeteransMemorialPkwyMember
Gross Carrying Amount, Total 2,617us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCharlesVeteransMemorialPkwyMember
Accumulated Depreciation 1,099us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCharlesVeteransMemorialPkwyMember
Bothell/ N. Bothell Way [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 07, 2002
Initial Cost, Land 1,063us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BothellNBothellWayMember
Initial Cost, Buildings & Improvements 4,995us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BothellNBothellWayMember
Costs Subsequent to Acquisition 236us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BothellNBothellWayMember
Gross Carrying Amount, Land 1,062us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BothellNBothellWayMember
Gross Carrying Amount, Buildings 5,232us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BothellNBothellWayMember
Gross Carrying Amount, Total 6,294us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BothellNBothellWayMember
Accumulated Depreciation 2,727us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BothellNBothellWayMember
Houston / N.Loop [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 15, 2002
Initial Cost, Land 2,045us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonNLoopMember
Initial Cost, Buildings & Improvements 6,178us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonNLoopMember
Costs Subsequent to Acquisition 2,178us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonNLoopMember
Gross Carrying Amount, Land 2,045us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonNLoopMember
Gross Carrying Amount, Buildings 8,356us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonNLoopMember
Gross Carrying Amount, Total 10,401us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonNLoopMember
Accumulated Depreciation 4,064us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonNLoopMember
Orlando / S. Kirkman [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 889us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSKirkmanMember
Initial Cost, Buildings & Improvements 3,180us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSKirkmanMember
Costs Subsequent to Acquisition 279us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSKirkmanMember
Gross Carrying Amount, Land 889us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSKirkmanMember
Gross Carrying Amount, Buildings 3,459us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSKirkmanMember
Gross Carrying Amount, Total 4,348us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSKirkmanMember
Accumulated Depreciation 2,056us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSKirkmanMember
Austin / Us Hwy 183 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 608us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinUsHwyOneEightThreeMember
Initial Cost, Buildings & Improvements 3,856us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinUsHwyOneEightThreeMember
Costs Subsequent to Acquisition 220us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinUsHwyOneEightThreeMember
Gross Carrying Amount, Land 608us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinUsHwyOneEightThreeMember
Gross Carrying Amount, Buildings 4,076us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinUsHwyOneEightThreeMember
Gross Carrying Amount, Total 4,684us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinUsHwyOneEightThreeMember
Accumulated Depreciation 2,449us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinUsHwyOneEightThreeMember
Rochelle Park / 168 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 744us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RochelleParkOneSixEightMember
Initial Cost, Buildings & Improvements 4,430us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RochelleParkOneSixEightMember
Costs Subsequent to Acquisition 325us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RochelleParkOneSixEightMember
Gross Carrying Amount, Land 744us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RochelleParkOneSixEightMember
Gross Carrying Amount, Buildings 4,755us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RochelleParkOneSixEightMember
Gross Carrying Amount, Total 5,499us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RochelleParkOneSixEightMember
Accumulated Depreciation 2,758us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RochelleParkOneSixEightMember
Honolulu / Waialae [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 10,631us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HonoluluWaialaeMember
Initial Cost, Buildings & Improvements 10,783us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HonoluluWaialaeMember
Costs Subsequent to Acquisition 879us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HonoluluWaialaeMember
Gross Carrying Amount, Land 10,629us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HonoluluWaialaeMember
Gross Carrying Amount, Buildings 11,664us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HonoluluWaialaeMember
Gross Carrying Amount, Total 22,293us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HonoluluWaialaeMember
Accumulated Depreciation 6,516us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HonoluluWaialaeMember
Sunny Isles Bch [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 931us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SunnyIslesBchMember
Initial Cost, Buildings & Improvements 2,845us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SunnyIslesBchMember
Costs Subsequent to Acquisition 315us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SunnyIslesBchMember
Gross Carrying Amount, Land 931us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SunnyIslesBchMember
Gross Carrying Amount, Buildings 3,160us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SunnyIslesBchMember
Gross Carrying Amount, Total 4,091us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SunnyIslesBchMember
Accumulated Depreciation 1,959us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SunnyIslesBchMember
San Ramon / San Ramo [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 1,522us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanRamonSanRamoMember
Initial Cost, Buildings & Improvements 3,510us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanRamonSanRamoMember
Costs Subsequent to Acquisition 113us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanRamonSanRamoMember
Gross Carrying Amount, Land 1,521us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanRamonSanRamoMember
Gross Carrying Amount, Buildings 3,624us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanRamonSanRamoMember
Gross Carrying Amount, Total 5,145us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanRamonSanRamoMember
Accumulated Depreciation 2,109us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanRamonSanRamoMember
Austin / W. 6th St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 2,399us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinWSixthStMember
Initial Cost, Buildings & Improvements 4,493us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinWSixthStMember
Costs Subsequent to Acquisition 564us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinWSixthStMember
Gross Carrying Amount, Land 2,399us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinWSixthStMember
Gross Carrying Amount, Buildings 5,057us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinWSixthStMember
Gross Carrying Amount, Total 7,456us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinWSixthStMember
Accumulated Depreciation 3,029us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinWSixthStMember
Schaumburg / W. Wise [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 1,158us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgWWiseMember
Initial Cost, Buildings & Improvements 2,598us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgWWiseMember
Costs Subsequent to Acquisition 108us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgWWiseMember
Gross Carrying Amount, Land 1,157us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgWWiseMember
Gross Carrying Amount, Buildings 2,707us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgWWiseMember
Gross Carrying Amount, Total 3,864us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgWWiseMember
Accumulated Depreciation 1,605us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgWWiseMember
Laguna Hills / Moulton [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 2,319us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LagunaHillsMoultonMember
Initial Cost, Buildings & Improvements 5,200us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LagunaHillsMoultonMember
Costs Subsequent to Acquisition 314us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LagunaHillsMoultonMember
Gross Carrying Amount, Land 2,318us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LagunaHillsMoultonMember
Gross Carrying Amount, Buildings 5,515us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LagunaHillsMoultonMember
Gross Carrying Amount, Total 7,833us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LagunaHillsMoultonMember
Accumulated Depreciation 3,183us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LagunaHillsMoultonMember
Annapolis / West St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 955us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AnnapolisWestStMember
Initial Cost, Buildings & Improvements 3,669us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AnnapolisWestStMember
Costs Subsequent to Acquisition 142us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AnnapolisWestStMember
Gross Carrying Amount, Land 955us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AnnapolisWestStMember
Gross Carrying Amount, Buildings 3,811us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AnnapolisWestStMember
Gross Carrying Amount, Total 4,766us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AnnapolisWestStMember
Accumulated Depreciation 2,226us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AnnapolisWestStMember
Birmingham / Commons [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 1,125us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BirminghamCommonsMember
Initial Cost, Buildings & Improvements 3,938us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BirminghamCommonsMember
Costs Subsequent to Acquisition 336us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BirminghamCommonsMember
Gross Carrying Amount, Land 1,125us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BirminghamCommonsMember
Gross Carrying Amount, Buildings 4,274us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BirminghamCommonsMember
Gross Carrying Amount, Total 5,399us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BirminghamCommonsMember
Accumulated Depreciation 2,511us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BirminghamCommonsMember
Crestwood / Watson Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 1,232us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CrestwoodWatsonRdMember
Initial Cost, Buildings & Improvements 3,093us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CrestwoodWatsonRdMember
Costs Subsequent to Acquisition 68us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CrestwoodWatsonRdMember
Gross Carrying Amount, Land 1,176us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CrestwoodWatsonRdMember
Gross Carrying Amount, Buildings 3,217us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CrestwoodWatsonRdMember
Gross Carrying Amount, Total 4,393us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CrestwoodWatsonRdMember
Accumulated Depreciation 1,875us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CrestwoodWatsonRdMember
Northglenn /Huron St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 688us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthglennHuronStMember
Initial Cost, Buildings & Improvements 2,075us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthglennHuronStMember
Costs Subsequent to Acquisition 175us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthglennHuronStMember
Gross Carrying Amount, Land 688us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthglennHuronStMember
Gross Carrying Amount, Buildings 2,250us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthglennHuronStMember
Gross Carrying Amount, Total 2,938us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthglennHuronStMember
Accumulated Depreciation 1,333us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthglennHuronStMember
Skokie / Skokie Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 716us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SkokieSkokieBlvdMember
Initial Cost, Buildings & Improvements 5,285us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SkokieSkokieBlvdMember
Costs Subsequent to Acquisition 256us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SkokieSkokieBlvdMember
Gross Carrying Amount, Land 716us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SkokieSkokieBlvdMember
Gross Carrying Amount, Buildings 5,541us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SkokieSkokieBlvdMember
Gross Carrying Amount, Total 6,257us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SkokieSkokieBlvdMember
Accumulated Depreciation 3,107us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SkokieSkokieBlvdMember
Garden City / Stewart [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 1,489us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenCityStewartMember
Initial Cost, Buildings & Improvements 4,039us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenCityStewartMember
Costs Subsequent to Acquisition 399us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenCityStewartMember
Gross Carrying Amount, Land 1,489us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenCityStewartMember
Gross Carrying Amount, Buildings 4,438us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenCityStewartMember
Gross Carrying Amount, Total 5,927us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenCityStewartMember
Accumulated Depreciation 2,655us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenCityStewartMember
Millersville / Veterans [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 1,036us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillersvilleVeteransMember
Initial Cost, Buildings & Improvements 4,229us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillersvilleVeteransMember
Costs Subsequent to Acquisition 274us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillersvilleVeteransMember
Gross Carrying Amount, Land 1,035us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillersvilleVeteransMember
Gross Carrying Amount, Buildings 4,504us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillersvilleVeteransMember
Gross Carrying Amount, Total 5,539us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillersvilleVeteransMember
Accumulated Depreciation 2,680us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillersvilleVeteransMember
W. Babylon / Sunrise [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 1,609us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WBabylonSunriseMember
Initial Cost, Buildings & Improvements 3,959us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WBabylonSunriseMember
Costs Subsequent to Acquisition 244us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WBabylonSunriseMember
Gross Carrying Amount, Land 1,608us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WBabylonSunriseMember
Gross Carrying Amount, Buildings 4,204us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WBabylonSunriseMember
Gross Carrying Amount, Total 5,812us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WBabylonSunriseMember
Accumulated Depreciation 2,440us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WBabylonSunriseMember
Memphis / Summer Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 1,103us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisSummerAveMember
Initial Cost, Buildings & Improvements 2,772us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisSummerAveMember
Costs Subsequent to Acquisition 197us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisSummerAveMember
Gross Carrying Amount, Land 1,103us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisSummerAveMember
Gross Carrying Amount, Buildings 2,969us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisSummerAveMember
Gross Carrying Amount, Total 4,072us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisSummerAveMember
Accumulated Depreciation 1,734us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisSummerAveMember
Santa Clara/Lafayette [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 1,393us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaClaraLafayetteMember
Initial Cost, Buildings & Improvements 4,626us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaClaraLafayetteMember
Costs Subsequent to Acquisition 50us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaClaraLafayetteMember
Gross Carrying Amount, Land 1,393us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaClaraLafayetteMember
Gross Carrying Amount, Buildings 4,676us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaClaraLafayetteMember
Gross Carrying Amount, Total 6,069us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaClaraLafayetteMember
Accumulated Depreciation 2,550us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaClaraLafayetteMember
Naperville / Washington [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 2,712us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NapervilleWashingtonMember
Initial Cost, Buildings & Improvements 2,225us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NapervilleWashingtonMember
Costs Subsequent to Acquisition 548us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NapervilleWashingtonMember
Gross Carrying Amount, Land 2,712us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NapervilleWashingtonMember
Gross Carrying Amount, Buildings 2,773us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NapervilleWashingtonMember
Gross Carrying Amount, Total 5,485us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NapervilleWashingtonMember
Accumulated Depreciation 1,619us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NapervilleWashingtonMember
Phoenix/W Union Hills [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 1,071us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhoenixWUnionHillsMember
Initial Cost, Buildings & Improvements 2,934us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhoenixWUnionHillsMember
Costs Subsequent to Acquisition 145us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhoenixWUnionHillsMember
Gross Carrying Amount, Land 1,065us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhoenixWUnionHillsMember
Gross Carrying Amount, Buildings 3,085us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhoenixWUnionHillsMember
Gross Carrying Amount, Total 4,150us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhoenixWUnionHillsMember
Accumulated Depreciation 1,810us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhoenixWUnionHillsMember
Woodlawn / Whitehead [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 2,682us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodlawnWhiteheadMember
Initial Cost, Buildings & Improvements 3,355us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodlawnWhiteheadMember
Costs Subsequent to Acquisition 154us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodlawnWhiteheadMember
Gross Carrying Amount, Land 2,682us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodlawnWhiteheadMember
Gross Carrying Amount, Buildings 3,509us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodlawnWhiteheadMember
Gross Carrying Amount, Total 6,191us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodlawnWhiteheadMember
Accumulated Depreciation 2,033us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodlawnWhiteheadMember
Issaquah / Pickering [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 1,138us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IssaquahPickeringMember
Initial Cost, Buildings & Improvements 3,704us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IssaquahPickeringMember
Costs Subsequent to Acquisition 85us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IssaquahPickeringMember
Gross Carrying Amount, Land 1,137us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IssaquahPickeringMember
Gross Carrying Amount, Buildings 3,790us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IssaquahPickeringMember
Gross Carrying Amount, Total 4,927us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IssaquahPickeringMember
Accumulated Depreciation 2,182us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IssaquahPickeringMember
West La /W Olympic [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 6,532us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestLaWOlympicMember
Initial Cost, Buildings & Improvements 5,975us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestLaWOlympicMember
Costs Subsequent to Acquisition 255us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestLaWOlympicMember
Gross Carrying Amount, Land 6,531us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestLaWOlympicMember
Gross Carrying Amount, Buildings 6,231us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestLaWOlympicMember
Gross Carrying Amount, Total 12,762us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestLaWOlympicMember
Accumulated Depreciation 3,482us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestLaWOlympicMember
Pasadena / E. Colorado [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 1,125us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaEColoradoMember
Initial Cost, Buildings & Improvements 5,160us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaEColoradoMember
Costs Subsequent to Acquisition 190us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaEColoradoMember
Gross Carrying Amount, Land 1,124us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaEColoradoMember
Gross Carrying Amount, Buildings 5,351us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaEColoradoMember
Gross Carrying Amount, Total 6,475us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaEColoradoMember
Accumulated Depreciation 2,951us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaEColoradoMember
Memphis / Covington [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 620us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisCovingtonMember
Initial Cost, Buildings & Improvements 3,076us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisCovingtonMember
Costs Subsequent to Acquisition 290us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisCovingtonMember
Gross Carrying Amount, Land 620us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisCovingtonMember
Gross Carrying Amount, Buildings 3,366us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisCovingtonMember
Gross Carrying Amount, Total 3,986us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisCovingtonMember
Accumulated Depreciation 1,958us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisCovingtonMember
Hiawassee / N.Hiawassee [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 1,622us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiawasseeNHiawasseeMember
Initial Cost, Buildings & Improvements 1,892us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiawasseeNHiawasseeMember
Costs Subsequent to Acquisition 180us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiawasseeNHiawasseeMember
Gross Carrying Amount, Land 1,622us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiawasseeNHiawasseeMember
Gross Carrying Amount, Buildings 2,072us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiawasseeNHiawasseeMember
Gross Carrying Amount, Total 3,694us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiawasseeNHiawasseeMember
Accumulated Depreciation 1,264us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiawasseeNHiawasseeMember
Longwood / State Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 2,123us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongwoodStateRdMember
Initial Cost, Buildings & Improvements 3,083us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongwoodStateRdMember
Costs Subsequent to Acquisition 296us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongwoodStateRdMember
Gross Carrying Amount, Land 2,123us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongwoodStateRdMember
Gross Carrying Amount, Buildings 3,379us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongwoodStateRdMember
Gross Carrying Amount, Total 5,502us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongwoodStateRdMember
Accumulated Depreciation 2,106us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongwoodStateRdMember
Casselberry / State [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 1,628us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CasselberryStateMember
Initial Cost, Buildings & Improvements 3,308us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CasselberryStateMember
Costs Subsequent to Acquisition 137us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CasselberryStateMember
Gross Carrying Amount, Land 1,628us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CasselberryStateMember
Gross Carrying Amount, Buildings 3,445us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CasselberryStateMember
Gross Carrying Amount, Total 5,073us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CasselberryStateMember
Accumulated Depreciation 1,982us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CasselberryStateMember
Honolulu/Kahala [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 3,722us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HonoluluKahalaMember
Initial Cost, Buildings & Improvements 8,525us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HonoluluKahalaMember
Costs Subsequent to Acquisition 286us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HonoluluKahalaMember
Gross Carrying Amount, Land 3,721us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HonoluluKahalaMember
Gross Carrying Amount, Buildings 8,812us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HonoluluKahalaMember
Gross Carrying Amount, Total 12,533us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HonoluluKahalaMember
Accumulated Depreciation 4,862us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HonoluluKahalaMember
Waukegan / Greenbay [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 933us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeganGreenbayMember
Initial Cost, Buildings & Improvements 3,826us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeganGreenbayMember
Costs Subsequent to Acquisition 114us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeganGreenbayMember
Gross Carrying Amount, Land 933us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeganGreenbayMember
Gross Carrying Amount, Buildings 3,940us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeganGreenbayMember
Gross Carrying Amount, Total 4,873us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeganGreenbayMember
Accumulated Depreciation 2,215us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeganGreenbayMember
Southfield / Telegraph [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 2,869us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SouthfieldTelegraphMember
Initial Cost, Buildings & Improvements 5,507us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SouthfieldTelegraphMember
Costs Subsequent to Acquisition 249us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SouthfieldTelegraphMember
Gross Carrying Amount, Land 2,869us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SouthfieldTelegraphMember
Gross Carrying Amount, Buildings 5,756us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SouthfieldTelegraphMember
Gross Carrying Amount, Total 8,625us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SouthfieldTelegraphMember
Accumulated Depreciation 3,251us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SouthfieldTelegraphMember
San Mateo / S. Delaware [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 1,921us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanMateoSDelawareMember
Initial Cost, Buildings & Improvements 4,602us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanMateoSDelawareMember
Costs Subsequent to Acquisition 213us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanMateoSDelawareMember
Gross Carrying Amount, Land 1,921us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanMateoSDelawareMember
Gross Carrying Amount, Buildings 4,815us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanMateoSDelawareMember
Gross Carrying Amount, Total 6,736us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanMateoSDelawareMember
Accumulated Depreciation 2,641us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanMateoSDelawareMember
Scottsdale/N.Hayden [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 2,111us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ScottsdaleNHaydenMember
Initial Cost, Buildings & Improvements 3,564us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ScottsdaleNHaydenMember
Costs Subsequent to Acquisition 112us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ScottsdaleNHaydenMember
Gross Carrying Amount, Land 2,117us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ScottsdaleNHaydenMember
Gross Carrying Amount, Buildings 3,670us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ScottsdaleNHaydenMember
Gross Carrying Amount, Total 5,787us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ScottsdaleNHaydenMember
Accumulated Depreciation 2,047us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ScottsdaleNHaydenMember
Gilbert/W Park Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 497us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GilbertWParkAveMember
Initial Cost, Buildings & Improvements 3,534us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GilbertWParkAveMember
Costs Subsequent to Acquisition 73us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GilbertWParkAveMember
Gross Carrying Amount, Land 497us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GilbertWParkAveMember
Gross Carrying Amount, Buildings 3,607us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GilbertWParkAveMember
Gross Carrying Amount, Total 4,104us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GilbertWParkAveMember
Accumulated Depreciation 2,019us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GilbertWParkAveMember
W.Palm Beach / Okeechobee [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 2,149us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WPalmBeachOkeechobeeMember
Initial Cost, Buildings & Improvements 4,650us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WPalmBeachOkeechobeeMember
Costs Subsequent to Acquisition (218)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WPalmBeachOkeechobeeMember
Gross Carrying Amount, Land 2,148us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WPalmBeachOkeechobeeMember
Gross Carrying Amount, Buildings 4,433us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WPalmBeachOkeechobeeMember
Gross Carrying Amount, Total 6,581us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WPalmBeachOkeechobeeMember
Accumulated Depreciation 2,539us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WPalmBeachOkeechobeeMember
Indianapolis / W.86th [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 812us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisWEightySixthMember
Initial Cost, Buildings & Improvements 2,421us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisWEightySixthMember
Costs Subsequent to Acquisition 441us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisWEightySixthMember
Gross Carrying Amount, Land 812us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisWEightySixthMember
Gross Carrying Amount, Buildings 2,862us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisWEightySixthMember
Gross Carrying Amount, Total 3,674us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisWEightySixthMember
Accumulated Depreciation 1,674us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisWEightySixthMember
Indianapolis / Madison [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 716us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisMadisonMember
Initial Cost, Buildings & Improvements 2,655us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisMadisonMember
Costs Subsequent to Acquisition 614us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisMadisonMember
Gross Carrying Amount, Land 716us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisMadisonMember
Gross Carrying Amount, Buildings 3,269us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisMadisonMember
Gross Carrying Amount, Total 3,985us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisMadisonMember
Accumulated Depreciation 1,668us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisMadisonMember
Indianapolis / Rockville [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 704us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisRockvilleMember
Initial Cost, Buildings & Improvements 2,704us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisRockvilleMember
Costs Subsequent to Acquisition 1,007us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisRockvilleMember
Gross Carrying Amount, Land 704us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisRockvilleMember
Gross Carrying Amount, Buildings 3,711us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisRockvilleMember
Gross Carrying Amount, Total 4,415us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisRockvilleMember
Accumulated Depreciation 1,826us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndianapolisRockvilleMember
Santa Cruz / River [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 2,148us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaCruzRiverMember
Initial Cost, Buildings & Improvements 6,584us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaCruzRiverMember
Costs Subsequent to Acquisition 214us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaCruzRiverMember
Gross Carrying Amount, Land 2,147us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaCruzRiverMember
Gross Carrying Amount, Buildings 6,799us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaCruzRiverMember
Gross Carrying Amount, Total 8,946us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaCruzRiverMember
Accumulated Depreciation 3,588us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaCruzRiverMember
Novato / Rush Landing [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 1,858us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NovatoRushLandingMember
Initial Cost, Buildings & Improvements 2,574us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NovatoRushLandingMember
Costs Subsequent to Acquisition 123us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NovatoRushLandingMember
Gross Carrying Amount, Land 1,858us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NovatoRushLandingMember
Gross Carrying Amount, Buildings 2,697us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NovatoRushLandingMember
Gross Carrying Amount, Total 4,555us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NovatoRushLandingMember
Accumulated Depreciation 1,522us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NovatoRushLandingMember
Martinez / Arnold Dr [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 847us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MartinezArnoldDrMember
Initial Cost, Buildings & Improvements 5,422us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MartinezArnoldDrMember
Costs Subsequent to Acquisition 83us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MartinezArnoldDrMember
Gross Carrying Amount, Land 847us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MartinezArnoldDrMember
Gross Carrying Amount, Buildings 5,505us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MartinezArnoldDrMember
Gross Carrying Amount, Total 6,352us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MartinezArnoldDrMember
Accumulated Depreciation 2,880us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MartinezArnoldDrMember
Charlotte/Cambridge [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 836us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteCambridgeMember
Initial Cost, Buildings & Improvements 3,908us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteCambridgeMember
Costs Subsequent to Acquisition 94us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteCambridgeMember
Gross Carrying Amount, Land 836us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteCambridgeMember
Gross Carrying Amount, Buildings 4,002us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteCambridgeMember
Gross Carrying Amount, Total 4,838us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteCambridgeMember
Accumulated Depreciation 2,234us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteCambridgeMember
Rancho Cucamonga [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 579us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RanchoCucamongaMember
Initial Cost, Buildings & Improvements 3,222us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RanchoCucamongaMember
Costs Subsequent to Acquisition 3,702us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RanchoCucamongaMember
Gross Carrying Amount, Land 1,130us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RanchoCucamongaMember
Gross Carrying Amount, Buildings 6,373us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RanchoCucamongaMember
Gross Carrying Amount, Total 7,503us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RanchoCucamongaMember
Accumulated Depreciation 2,998us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RanchoCucamongaMember
Renton / Kent [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 768us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RentonKentMember
Initial Cost, Buildings & Improvements 4,078us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RentonKentMember
Costs Subsequent to Acquisition 61us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RentonKentMember
Gross Carrying Amount, Land 714us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RentonKentMember
Gross Carrying Amount, Buildings 4,193us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RentonKentMember
Gross Carrying Amount, Total 4,907us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RentonKentMember
Accumulated Depreciation 2,368us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RentonKentMember
Hawthorne / Goffle Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2002
Initial Cost, Land 2,414us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HawthorneGoffleRdMember
Initial Cost, Buildings & Improvements 4,918us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HawthorneGoffleRdMember
Costs Subsequent to Acquisition 129us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HawthorneGoffleRdMember
Gross Carrying Amount, Land 2,413us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HawthorneGoffleRdMember
Gross Carrying Amount, Buildings 5,048us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HawthorneGoffleRdMember
Gross Carrying Amount, Total 7,461us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HawthorneGoffleRdMember
Accumulated Depreciation 2,742us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HawthorneGoffleRdMember
Nashua / Southwood Dr [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Feb. 02, 2002
Initial Cost, Land 2,493us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashuaSouthwoodDrMember
Initial Cost, Buildings & Improvements 4,326us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashuaSouthwoodDrMember
Costs Subsequent to Acquisition 326us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashuaSouthwoodDrMember
Gross Carrying Amount, Land 2,493us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashuaSouthwoodDrMember
Gross Carrying Amount, Buildings 4,652us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashuaSouthwoodDrMember
Gross Carrying Amount, Total 7,145us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashuaSouthwoodDrMember
Accumulated Depreciation 2,458us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashuaSouthwoodDrMember
Houston/Fm 1960 East [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Feb. 15, 2002
Initial Cost, Land 859us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFmOneNineSixZeroEastMember
Initial Cost, Buildings & Improvements 2,004us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFmOneNineSixZeroEastMember
Costs Subsequent to Acquisition 204us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFmOneNineSixZeroEastMember
Gross Carrying Amount, Land 859us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFmOneNineSixZeroEastMember
Gross Carrying Amount, Buildings 2,208us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFmOneNineSixZeroEastMember
Gross Carrying Amount, Total 3,067us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFmOneNineSixZeroEastMember
Accumulated Depreciation 1,187us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFmOneNineSixZeroEastMember
Baltimore / Russell Street [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 07, 2002
Initial Cost, Land 1,763us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BaltimoreRussellStreetMember
Initial Cost, Buildings & Improvements 5,821us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BaltimoreRussellStreetMember
Costs Subsequent to Acquisition 308us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BaltimoreRussellStreetMember
Gross Carrying Amount, Land 1,763us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BaltimoreRussellStreetMember
Gross Carrying Amount, Buildings 6,129us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BaltimoreRussellStreetMember
Gross Carrying Amount, Total 7,892us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BaltimoreRussellStreetMember
Accumulated Depreciation 3,171us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BaltimoreRussellStreetMember
Weymouth / Main St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 11, 2002
Initial Cost, Land 1,440us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WeymouthMainStMember
Initial Cost, Buildings & Improvements 4,433us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WeymouthMainStMember
Costs Subsequent to Acquisition 272us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WeymouthMainStMember
Gross Carrying Amount, Land 1,439us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WeymouthMainStMember
Gross Carrying Amount, Buildings 4,706us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WeymouthMainStMember
Gross Carrying Amount, Total 6,145us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WeymouthMainStMember
Accumulated Depreciation 2,466us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WeymouthMainStMember
Clinton / Branch Ave & Schultz [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 28, 2002
Initial Cost, Land 1,257us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ClintonBranchAveSchultzMember
Initial Cost, Buildings & Improvements 4,108us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ClintonBranchAveSchultzMember
Costs Subsequent to Acquisition 3,871us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ClintonBranchAveSchultzMember
Gross Carrying Amount, Land 2,358us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ClintonBranchAveSchultzMember
Gross Carrying Amount, Buildings 6,878us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ClintonBranchAveSchultzMember
Gross Carrying Amount, Total 9,236us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ClintonBranchAveSchultzMember
Accumulated Depreciation 3,275us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ClintonBranchAveSchultzMember
La Mirada/Alondra [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Apr. 17, 2002
Initial Cost, Land 1,749us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaMiradaAlondraMember
Initial Cost, Buildings & Improvements 5,044us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaMiradaAlondraMember
Costs Subsequent to Acquisition 2,862us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaMiradaAlondraMember
Gross Carrying Amount, Land 2,575us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaMiradaAlondraMember
Gross Carrying Amount, Buildings 7,080us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaMiradaAlondraMember
Gross Carrying Amount, Total 9,655us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaMiradaAlondraMember
Accumulated Depreciation 3,389us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaMiradaAlondraMember
N.Richlnd Hls/Rufe Snow Dr [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired May 01, 2002
Initial Cost, Land 632us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NRichlndHlsRufeSnowDrMember
Initial Cost, Buildings & Improvements 6,337us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NRichlndHlsRufeSnowDrMember
Costs Subsequent to Acquisition 2,540us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NRichlndHlsRufeSnowDrMember
Gross Carrying Amount, Land 631us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NRichlndHlsRufeSnowDrMember
Gross Carrying Amount, Buildings 8,878us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NRichlndHlsRufeSnowDrMember
Gross Carrying Amount, Total 9,509us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NRichlndHlsRufeSnowDrMember
Accumulated Depreciation 4,405us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NRichlndHlsRufeSnowDrMember
Parkville/E.Joppa [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired May 02, 2002
Initial Cost, Land 898us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ParkvilleEJoppaMember
Initial Cost, Buildings & Improvements 4,306us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ParkvilleEJoppaMember
Costs Subsequent to Acquisition 191us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ParkvilleEJoppaMember
Gross Carrying Amount, Land 898us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ParkvilleEJoppaMember
Gross Carrying Amount, Buildings 4,497us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ParkvilleEJoppaMember
Gross Carrying Amount, Total 5,395us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ParkvilleEJoppaMember
Accumulated Depreciation 2,293us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ParkvilleEJoppaMember
Waltham / Lexington St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 17, 2002
Initial Cost, Land 3,183us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WalthamLexingtonStMember
Initial Cost, Buildings & Improvements 5,733us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WalthamLexingtonStMember
Costs Subsequent to Acquisition 373us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WalthamLexingtonStMember
Gross Carrying Amount, Land 3,203us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WalthamLexingtonStMember
Gross Carrying Amount, Buildings 6,086us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WalthamLexingtonStMember
Gross Carrying Amount, Total 9,289us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WalthamLexingtonStMember
Accumulated Depreciation 3,085us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WalthamLexingtonStMember
Nashville / Charlotte [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 2002
Initial Cost, Land 876us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleCharlotteMember
Initial Cost, Buildings & Improvements 2,004us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleCharlotteMember
Costs Subsequent to Acquisition 202us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleCharlotteMember
Gross Carrying Amount, Land 876us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleCharlotteMember
Gross Carrying Amount, Buildings 2,206us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleCharlotteMember
Gross Carrying Amount, Total 3,082us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleCharlotteMember
Accumulated Depreciation 1,181us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleCharlotteMember
Mt Juliet / Lebonan Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 02, 2002
Initial Cost, Land 516us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MtJulietLebonanRdMember
Initial Cost, Buildings & Improvements 1,203us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MtJulietLebonanRdMember
Costs Subsequent to Acquisition 267us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MtJulietLebonanRdMember
Gross Carrying Amount, Land 516us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MtJulietLebonanRdMember
Gross Carrying Amount, Buildings 1,470us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MtJulietLebonanRdMember
Gross Carrying Amount, Total 1,986us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MtJulietLebonanRdMember
Accumulated Depreciation 842us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MtJulietLebonanRdMember
Yorktown / George Washington [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 14, 2002
Initial Cost, Land 707us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_YorktownGeorgeWashingtonMember
Initial Cost, Buildings & Improvements 1,684us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_YorktownGeorgeWashingtonMember
Costs Subsequent to Acquisition 185us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_YorktownGeorgeWashingtonMember
Gross Carrying Amount, Land 707us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_YorktownGeorgeWashingtonMember
Gross Carrying Amount, Buildings 1,869us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_YorktownGeorgeWashingtonMember
Gross Carrying Amount, Total 2,576us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_YorktownGeorgeWashingtonMember
Accumulated Depreciation 1,016us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_YorktownGeorgeWashingtonMember
Brea/E. Lambert & Clifwood Pk [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 22, 2002
Initial Cost, Land 2,114us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BreaELambertClifwoodPkMember
Initial Cost, Buildings & Improvements 3,555us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BreaELambertClifwoodPkMember
Costs Subsequent to Acquisition 203us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BreaELambertClifwoodPkMember
Gross Carrying Amount, Land 2,113us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BreaELambertClifwoodPkMember
Gross Carrying Amount, Buildings 3,759us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BreaELambertClifwoodPkMember
Gross Carrying Amount, Total 5,872us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BreaELambertClifwoodPkMember
Accumulated Depreciation 1,908us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BreaELambertClifwoodPkMember
Bricktown/Route 70 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Aug. 01, 2002
Initial Cost, Land 1,292us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BricktownRouteSevenMember
Initial Cost, Buildings & Improvements 3,690us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BricktownRouteSevenMember
Costs Subsequent to Acquisition 234us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BricktownRouteSevenMember
Gross Carrying Amount, Land 1,292us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BricktownRouteSevenMember
Gross Carrying Amount, Buildings 3,924us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BricktownRouteSevenMember
Gross Carrying Amount, Total 5,216us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BricktownRouteSevenMember
Accumulated Depreciation 1,975us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BricktownRouteSevenMember
Danvers / Newbury St. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Aug. 01, 2002
Initial Cost, Land 1,311us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DanversNewburyStMember
Initial Cost, Buildings & Improvements 4,140us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DanversNewburyStMember
Costs Subsequent to Acquisition 738us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DanversNewburyStMember
Gross Carrying Amount, Land 1,326us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DanversNewburyStMember
Gross Carrying Amount, Buildings 4,863us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DanversNewburyStMember
Gross Carrying Amount, Total 6,189us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DanversNewburyStMember
Accumulated Depreciation 2,415us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DanversNewburyStMember
Montclair / Holt Blvd. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Aug. 15, 2002
Initial Cost, Land 889us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MontclairHoltBlvdMember
Initial Cost, Buildings & Improvements 2,074us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MontclairHoltBlvdMember
Costs Subsequent to Acquisition 733us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MontclairHoltBlvdMember
Gross Carrying Amount, Land 889us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MontclairHoltBlvdMember
Gross Carrying Amount, Buildings 2,807us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MontclairHoltBlvdMember
Gross Carrying Amount, Total 3,696us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MontclairHoltBlvdMember
Accumulated Depreciation 1,653us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MontclairHoltBlvdMember
Rockville Centre/Merrick Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Aug. 21, 2002
Initial Cost, Land 3,693us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockvilleCentreMerrickRdMember
Initial Cost, Buildings & Improvements 6,990us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockvilleCentreMerrickRdMember
Costs Subsequent to Acquisition 477us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockvilleCentreMerrickRdMember
Gross Carrying Amount, Land 3,692us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockvilleCentreMerrickRdMember
Gross Carrying Amount, Buildings 7,468us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockvilleCentreMerrickRdMember
Gross Carrying Amount, Total 11,160us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockvilleCentreMerrickRdMember
Accumulated Depreciation 3,738us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockvilleCentreMerrickRdMember
Lacey / Martin Way [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 13, 2002
Initial Cost, Land 1,379us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaceyMartinWayMarvinRdMember
Initial Cost, Buildings & Improvements 3,217us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaceyMartinWayMarvinRdMember
Costs Subsequent to Acquisition 155us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaceyMartinWayMarvinRdMember
Gross Carrying Amount, Land 1,379us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaceyMartinWayMarvinRdMember
Gross Carrying Amount, Buildings 3,372us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaceyMartinWayMarvinRdMember
Gross Carrying Amount, Total 4,751us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaceyMartinWayMarvinRdMember
Accumulated Depreciation 1,541us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaceyMartinWayMarvinRdMember
Lakewood / Bridgeport '02 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 13, 2002
Initial Cost, Land 1,286us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakewoodBridgeportMember
Initial Cost, Buildings & Improvements 3,000us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakewoodBridgeportMember
Costs Subsequent to Acquisition 181us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakewoodBridgeportMember
Gross Carrying Amount, Land 1,286us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakewoodBridgeportMember
Gross Carrying Amount, Buildings 3,181us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakewoodBridgeportMember
Gross Carrying Amount, Total 4,467us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakewoodBridgeportMember
Accumulated Depreciation 1,457us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakewoodBridgeportMember
Kent / Pacific Highway [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 13, 2002
Initial Cost, Land 1,839us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KentPacificHighwayMember
Initial Cost, Buildings & Improvements 4,291us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KentPacificHighwayMember
Costs Subsequent to Acquisition 335us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KentPacificHighwayMember
Gross Carrying Amount, Land 1,839us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KentPacificHighwayMember
Gross Carrying Amount, Buildings 4,626us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KentPacificHighwayMember
Gross Carrying Amount, Total 6,465us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KentPacificHighwayMember
Accumulated Depreciation 2,126us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KentPacificHighwayMember
Scotch Plains /Route 22 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Nov. 04, 2002
Initial Cost, Land 2,124us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ScotchPlainsRouteTwoTwoMember
Initial Cost, Buildings & Improvements 5,072us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ScotchPlainsRouteTwoTwoMember
Costs Subsequent to Acquisition 155us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ScotchPlainsRouteTwoTwoMember
Gross Carrying Amount, Land 2,126us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ScotchPlainsRouteTwoTwoMember
Gross Carrying Amount, Buildings 5,225us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ScotchPlainsRouteTwoTwoMember
Gross Carrying Amount, Total 7,351us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ScotchPlainsRouteTwoTwoMember
Accumulated Depreciation 2,653us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ScotchPlainsRouteTwoTwoMember
Snta Clarita/Viaprincssa [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 23, 2002
Initial Cost, Land 2,508us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SntaClaritaViaprincssaMember
Initial Cost, Buildings & Improvements 3,008us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SntaClaritaViaprincssaMember
Costs Subsequent to Acquisition 3,669us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SntaClaritaViaprincssaMember
Gross Carrying Amount, Land 2,508us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SntaClaritaViaprincssaMember
Gross Carrying Amount, Buildings 6,677us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SntaClaritaViaprincssaMember
Gross Carrying Amount, Total 9,185us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SntaClaritaViaprincssaMember
Accumulated Depreciation 3,127us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SntaClaritaViaprincssaMember
Pasadena / Ritchie Hwy [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Feb. 13, 2003
Initial Cost, Land 2,253us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaRitchieHwyMember
Initial Cost, Buildings & Improvements 4,218us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaRitchieHwyMember
Costs Subsequent to Acquisition 35us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaRitchieHwyMember
Gross Carrying Amount, Land 2,253us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaRitchieHwyMember
Gross Carrying Amount, Buildings 4,253us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaRitchieHwyMember
Gross Carrying Amount, Total 6,506us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaRitchieHwyMember
Accumulated Depreciation 2,042us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PasadenaRitchieHwyMember
Malden / Eastern Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Feb. 13, 2003
Initial Cost, Land 3,212us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MaldenEasternAveMember
Initial Cost, Buildings & Improvements 2,739us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MaldenEasternAveMember
Costs Subsequent to Acquisition 227us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MaldenEasternAveMember
Gross Carrying Amount, Land 3,212us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MaldenEasternAveMember
Gross Carrying Amount, Buildings 2,966us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MaldenEasternAveMember
Gross Carrying Amount, Total 6,178us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MaldenEasternAveMember
Accumulated Depreciation 1,435us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MaldenEasternAveMember
Miami / SW 137th Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Feb. 24, 2003
Initial Cost, Land 1,600us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwOneThirtySeventhAveMember
Initial Cost, Buildings & Improvements 4,684us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwOneThirtySeventhAveMember
Costs Subsequent to Acquisition (173)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwOneThirtySeventhAveMember
Gross Carrying Amount, Land 1,600us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwOneThirtySeventhAveMember
Gross Carrying Amount, Buildings 4,511us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwOneThirtySeventhAveMember
Gross Carrying Amount, Total 6,111us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwOneThirtySeventhAveMember
Accumulated Depreciation 2,179us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwOneThirtySeventhAveMember
Chantilly / Dulles South Court [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 03, 2003
Initial Cost, Land 2,190us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChantillyDullesSouthCourtMember
Initial Cost, Buildings & Improvements 4,314us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChantillyDullesSouthCourtMember
Costs Subsequent to Acquisition 141us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChantillyDullesSouthCourtMember
Gross Carrying Amount, Land 2,101us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChantillyDullesSouthCourtMember
Gross Carrying Amount, Buildings 4,544us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChantillyDullesSouthCourtMember
Gross Carrying Amount, Total 6,645us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChantillyDullesSouthCourtMember
Accumulated Depreciation 2,152us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChantillyDullesSouthCourtMember
Medford / Mystic Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 06, 2003
Initial Cost, Land 3,886us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MedfordMysticAveMember
Initial Cost, Buildings & Improvements 4,982us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MedfordMysticAveMember
Costs Subsequent to Acquisition 57us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MedfordMysticAveMember
Gross Carrying Amount, Land 3,885us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MedfordMysticAveMember
Gross Carrying Amount, Buildings 5,040us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MedfordMysticAveMember
Gross Carrying Amount, Total 8,925us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MedfordMysticAveMember
Accumulated Depreciation 2,395us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MedfordMysticAveMember
Castro Valley / Grove Way [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired May 27, 2003
Initial Cost, Land 2,247us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CastroValleyGroveWayMember
Initial Cost, Buildings & Improvements 5,881us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CastroValleyGroveWayMember
Costs Subsequent to Acquisition 1,040us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CastroValleyGroveWayMember
Gross Carrying Amount, Land 2,307us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CastroValleyGroveWayMember
Gross Carrying Amount, Buildings 6,861us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CastroValleyGroveWayMember
Gross Carrying Amount, Total 9,168us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CastroValleyGroveWayMember
Accumulated Depreciation 3,291us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CastroValleyGroveWayMember
Sacramento / E.Stockton Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Aug. 02, 2003
Initial Cost, Land 554us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoEStocktonBlvdMember
Initial Cost, Buildings & Improvements 4,175us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoEStocktonBlvdMember
Costs Subsequent to Acquisition 122us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoEStocktonBlvdMember
Gross Carrying Amount, Land 554us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoEStocktonBlvdMember
Gross Carrying Amount, Buildings 4,297us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoEStocktonBlvdMember
Gross Carrying Amount, Total 4,851us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoEStocktonBlvdMember
Accumulated Depreciation 2,040us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacramentoEStocktonBlvdMember
Timonium / W. Padonia Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Aug. 13, 2003
Initial Cost, Land 1,932us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TimoniumWPadoniaRoadMember
Initial Cost, Buildings & Improvements 3,681us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TimoniumWPadoniaRoadMember
Costs Subsequent to Acquisition 73us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TimoniumWPadoniaRoadMember
Gross Carrying Amount, Land 1,932us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TimoniumWPadoniaRoadMember
Gross Carrying Amount, Buildings 3,754us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TimoniumWPadoniaRoadMember
Gross Carrying Amount, Total 5,686us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TimoniumWPadoniaRoadMember
Accumulated Depreciation 1,741us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TimoniumWPadoniaRoadMember
Van Nuys / Sepulveda [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Aug. 21, 2003
Initial Cost, Land 1,698us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_VanNuysSepulvedaMember
Initial Cost, Buildings & Improvements 3,886us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_VanNuysSepulvedaMember
Costs Subsequent to Acquisition 2,400us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_VanNuysSepulvedaMember
Gross Carrying Amount, Land 1,698us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_VanNuysSepulvedaMember
Gross Carrying Amount, Buildings 6,286us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_VanNuysSepulvedaMember
Gross Carrying Amount, Total 7,984us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_VanNuysSepulvedaMember
Accumulated Depreciation 2,600us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_VanNuysSepulvedaMember
Westwood / East St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 09, 2003
Initial Cost, Land 3,267us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestwoodEastStMember
Initial Cost, Buildings & Improvements 5,013us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestwoodEastStMember
Costs Subsequent to Acquisition 435us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestwoodEastStMember
Gross Carrying Amount, Land 3,288us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestwoodEastStMember
Gross Carrying Amount, Buildings 5,427us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestwoodEastStMember
Gross Carrying Amount, Total 8,715us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestwoodEastStMember
Accumulated Depreciation 2,549us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestwoodEastStMember
San Diego / Miramar Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 21, 2003
Initial Cost, Land 2,244us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanDiegoMiramarRoadMember
Initial Cost, Buildings & Improvements 6,653us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanDiegoMiramarRoadMember
Costs Subsequent to Acquisition 704us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanDiegoMiramarRoadMember
Gross Carrying Amount, Land 2,243us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanDiegoMiramarRoadMember
Gross Carrying Amount, Buildings 7,358us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanDiegoMiramarRoadMember
Gross Carrying Amount, Total 9,601us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanDiegoMiramarRoadMember
Accumulated Depreciation 3,359us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanDiegoMiramarRoadMember
El Sobrante/San Pablo [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Nov. 03, 2003
Initial Cost, Land 1,255us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElSobranteSanPabloMember
Initial Cost, Buildings & Improvements 4,990us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElSobranteSanPabloMember
Costs Subsequent to Acquisition 1,424us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElSobranteSanPabloMember
Gross Carrying Amount, Land 1,257us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElSobranteSanPabloMember
Gross Carrying Amount, Buildings 6,412us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElSobranteSanPabloMember
Gross Carrying Amount, Total 7,669us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElSobranteSanPabloMember
Accumulated Depreciation 3,275us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElSobranteSanPabloMember
Pearl City / Kamehameha Hwy [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Nov. 06, 2003
Initial Cost, Land 4,428us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PearlCityKamehamehaHwyMember
Initial Cost, Buildings & Improvements 4,839us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PearlCityKamehamehaHwyMember
Costs Subsequent to Acquisition 1,040us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PearlCityKamehamehaHwyMember
Gross Carrying Amount, Land 4,430us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PearlCityKamehamehaHwyMember
Gross Carrying Amount, Buildings 5,877us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PearlCityKamehamehaHwyMember
Gross Carrying Amount, Total 10,307us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PearlCityKamehamehaHwyMember
Accumulated Depreciation 2,549us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PearlCityKamehamehaHwyMember
Boston / Southampton Street [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 23, 2003
Initial Cost, Land 5,334us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BostonSouthamptonStreetMember
Initial Cost, Buildings & Improvements 7,511us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BostonSouthamptonStreetMember
Costs Subsequent to Acquisition 881us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BostonSouthamptonStreetMember
Gross Carrying Amount, Land 5,345us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BostonSouthamptonStreetMember
Gross Carrying Amount, Buildings 8,381us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BostonSouthamptonStreetMember
Gross Carrying Amount, Total 13,726us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BostonSouthamptonStreetMember
Accumulated Depreciation 3,752us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BostonSouthamptonStreetMember
Farmingville / Horseblock Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 09, 2004
Initial Cost, Land 1,919us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FarmingvilleHorseblockRoadMember
Initial Cost, Buildings & Improvements 4,420us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FarmingvilleHorseblockRoadMember
Costs Subsequent to Acquisition 42us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FarmingvilleHorseblockRoadMember
Gross Carrying Amount, Land 1,918us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FarmingvilleHorseblockRoadMember
Gross Carrying Amount, Buildings 4,463us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FarmingvilleHorseblockRoadMember
Gross Carrying Amount, Total 6,381us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FarmingvilleHorseblockRoadMember
Accumulated Depreciation 2,005us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FarmingvilleHorseblockRoadMember
Salem / Goodhue St. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Feb. 27, 2004
Initial Cost, Land 1,544us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SalemGoodhueStMember
Initial Cost, Buildings & Improvements 6,160us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SalemGoodhueStMember
Costs Subsequent to Acquisition 173us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SalemGoodhueStMember
Gross Carrying Amount, Land 1,544us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SalemGoodhueStMember
Gross Carrying Amount, Buildings 6,333us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SalemGoodhueStMember
Gross Carrying Amount, Total 7,877us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SalemGoodhueStMember
Accumulated Depreciation 2,785us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SalemGoodhueStMember
Seven Corners / Arlington Blvd. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 18, 2004
Initial Cost, Land 6,087us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SevenCornersArlingtonBlvdMember
Initial Cost, Buildings & Improvements 7,553us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SevenCornersArlingtonBlvdMember
Costs Subsequent to Acquisition (176)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SevenCornersArlingtonBlvdMember
Gross Carrying Amount, Land 6,085us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SevenCornersArlingtonBlvdMember
Gross Carrying Amount, Buildings 7,379us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SevenCornersArlingtonBlvdMember
Gross Carrying Amount, Total 13,464us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SevenCornersArlingtonBlvdMember
Accumulated Depreciation 3,220us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SevenCornersArlingtonBlvdMember
Marlton / Route 73 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 2004
Initial Cost, Land 1,103us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MarltonRouteSevenThreeMember
Initial Cost, Buildings & Improvements 5,195us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MarltonRouteSevenThreeMember
Costs Subsequent to Acquisition (13)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MarltonRouteSevenThreeMember
Gross Carrying Amount, Land 1,103us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MarltonRouteSevenThreeMember
Gross Carrying Amount, Buildings 5,182us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MarltonRouteSevenThreeMember
Gross Carrying Amount, Total 6,285us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MarltonRouteSevenThreeMember
Accumulated Depreciation 2,451us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MarltonRouteSevenThreeMember
Long Island City/Northern Blvd. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 01, 2004
Initial Cost, Land 4,876us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongIslandCityNorthernBlvdMember
Initial Cost, Buildings & Improvements 7,610us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongIslandCityNorthernBlvdMember
Costs Subsequent to Acquisition (51)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongIslandCityNorthernBlvdMember
Gross Carrying Amount, Land 4,876us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongIslandCityNorthernBlvdMember
Gross Carrying Amount, Buildings 7,559us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongIslandCityNorthernBlvdMember
Gross Carrying Amount, Total 12,435us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongIslandCityNorthernBlvdMember
Accumulated Depreciation 3,289us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongIslandCityNorthernBlvdMember
West Valley Cty/Redwood [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 09, 2004
Initial Cost, Land 876us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestValleyCtyRedwoodMember
Initial Cost, Buildings & Improvements 2,067us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestValleyCtyRedwoodMember
Costs Subsequent to Acquisition 693us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestValleyCtyRedwoodMember
Gross Carrying Amount, Land 883us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestValleyCtyRedwoodMember
Gross Carrying Amount, Buildings 2,753us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestValleyCtyRedwoodMember
Gross Carrying Amount, Total 3,636us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestValleyCtyRedwoodMember
Accumulated Depreciation 1,483us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestValleyCtyRedwoodMember
Hicksville/E. Old Country Rd. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 12, 2004
Initial Cost, Land 1,693us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HicksvilleEOldCountryRdMember
Initial Cost, Buildings & Improvements 3,910us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HicksvilleEOldCountryRdMember
Costs Subsequent to Acquisition 254us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HicksvilleEOldCountryRdMember
Gross Carrying Amount, Land 1,692us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HicksvilleEOldCountryRdMember
Gross Carrying Amount, Buildings 4,165us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HicksvilleEOldCountryRdMember
Gross Carrying Amount, Total 5,857us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HicksvilleEOldCountryRdMember
Accumulated Depreciation 1,788us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HicksvilleEOldCountryRdMember
Harwood/Ronald [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 15, 2004
Initial Cost, Land 1,619us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HarwoodRonaldMember
Initial Cost, Buildings & Improvements 3,778us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HarwoodRonaldMember
Costs Subsequent to Acquisition 364us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HarwoodRonaldMember
Gross Carrying Amount, Land 1,619us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HarwoodRonaldMember
Gross Carrying Amount, Buildings 4,142us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HarwoodRonaldMember
Gross Carrying Amount, Total 5,761us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HarwoodRonaldMember
Accumulated Depreciation 1,838us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HarwoodRonaldMember
E. Hanover/State Rt [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 24, 2004
Initial Cost, Land 3,895us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EHanoverStateRtMember
Initial Cost, Buildings & Improvements 4,943us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EHanoverStateRtMember
Costs Subsequent to Acquisition 278us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EHanoverStateRtMember
Gross Carrying Amount, Land 3,895us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EHanoverStateRtMember
Gross Carrying Amount, Buildings 5,221us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EHanoverStateRtMember
Gross Carrying Amount, Total 9,116us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EHanoverStateRtMember
Accumulated Depreciation 2,158us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EHanoverStateRtMember
Apple Valley/148th St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 186us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AppleValleyOneFortyEighthStMember
Initial Cost, Land 591us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AppleValleyOneFortyEighthStMember
Initial Cost, Buildings & Improvements 1,375us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AppleValleyOneFortyEighthStMember
Costs Subsequent to Acquisition 276us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AppleValleyOneFortyEighthStMember
Gross Carrying Amount, Land 592us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AppleValleyOneFortyEighthStMember
Gross Carrying Amount, Buildings 1,650us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AppleValleyOneFortyEighthStMember
Gross Carrying Amount, Total 2,242us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AppleValleyOneFortyEighthStMember
Accumulated Depreciation 791us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AppleValleyOneFortyEighthStMember
Blaine / Hwy 65 NE [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 289us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BlaineHwySixFiveNeMember
Initial Cost, Land 789us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BlaineHwySixFiveNeMember
Initial Cost, Buildings & Improvements 1,833us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BlaineHwySixFiveNeMember
Costs Subsequent to Acquisition 868us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BlaineHwySixFiveNeMember
Gross Carrying Amount, Land 713us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BlaineHwySixFiveNeMember
Gross Carrying Amount, Buildings 2,777us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BlaineHwySixFiveNeMember
Gross Carrying Amount, Total 3,490us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BlaineHwySixFiveNeMember
Accumulated Depreciation 1,186us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BlaineHwySixFiveNeMember
Brooklyn Park / Lakeland Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
Initial Cost, Land 1,411us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynParkLakelandAveMember
Initial Cost, Buildings & Improvements 3,278us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynParkLakelandAveMember
Costs Subsequent to Acquisition 342us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynParkLakelandAveMember
Gross Carrying Amount, Land 1,413us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynParkLakelandAveMember
Gross Carrying Amount, Buildings 3,618us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynParkLakelandAveMember
Gross Carrying Amount, Total 5,031us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynParkLakelandAveMember
Accumulated Depreciation 1,634us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynParkLakelandAveMember
Brooklyn Park / Xylon Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 342us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynParkXylonAveMember
Initial Cost, Land 1,120us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynParkXylonAveMember
Initial Cost, Buildings & Improvements 2,601us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynParkXylonAveMember
Costs Subsequent to Acquisition 416us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynParkXylonAveMember
Gross Carrying Amount, Land 1,121us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynParkXylonAveMember
Gross Carrying Amount, Buildings 3,016us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynParkXylonAveMember
Gross Carrying Amount, Total 4,137us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynParkXylonAveMember
Accumulated Depreciation 1,459us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynParkXylonAveMember
St Paul(Eagan)/Sibley Mem'l Hwy [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 185us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulEaganSibleyMemLHwyMember
Initial Cost, Land 615us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulEaganSibleyMemLHwyMember
Initial Cost, Buildings & Improvements 1,431us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulEaganSibleyMemLHwyMember
Costs Subsequent to Acquisition 184us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulEaganSibleyMemLHwyMember
Gross Carrying Amount, Land 616us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulEaganSibleyMemLHwyMember
Gross Carrying Amount, Buildings 1,614us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulEaganSibleyMemLHwyMember
Gross Carrying Amount, Total 2,230us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulEaganSibleyMemLHwyMember
Accumulated Depreciation 744us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulEaganSibleyMemLHwyMember
Maple Grove / Zachary Lane [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 378us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MapleGroveZacharyLaneMember
Initial Cost, Land 1,337us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MapleGroveZacharyLaneMember
Initial Cost, Buildings & Improvements 3,105us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MapleGroveZacharyLaneMember
Costs Subsequent to Acquisition 123us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MapleGroveZacharyLaneMember
Gross Carrying Amount, Land 1,338us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MapleGroveZacharyLaneMember
Gross Carrying Amount, Buildings 3,227us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MapleGroveZacharyLaneMember
Gross Carrying Amount, Total 4,565us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MapleGroveZacharyLaneMember
Accumulated Depreciation 1,359us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MapleGroveZacharyLaneMember
Minneapolis / Hiawatha Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 433us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MinneapolisHiawathaAveMember
Initial Cost, Land 1,480us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MinneapolisHiawathaAveMember
Initial Cost, Buildings & Improvements 3,437us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MinneapolisHiawathaAveMember
Costs Subsequent to Acquisition 310us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MinneapolisHiawathaAveMember
Gross Carrying Amount, Land 1,481us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MinneapolisHiawathaAveMember
Gross Carrying Amount, Buildings 3,746us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MinneapolisHiawathaAveMember
Gross Carrying Amount, Total 5,227us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MinneapolisHiawathaAveMember
Accumulated Depreciation 1,672us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MinneapolisHiawathaAveMember
New Hope / 36th Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 446us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewHopeThirtySixthAveMember
Initial Cost, Land 1,332us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewHopeThirtySixthAveMember
Initial Cost, Buildings & Improvements 3,094us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewHopeThirtySixthAveMember
Costs Subsequent to Acquisition 957us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewHopeThirtySixthAveMember
Gross Carrying Amount, Land 1,333us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewHopeThirtySixthAveMember
Gross Carrying Amount, Buildings 4,050us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewHopeThirtySixthAveMember
Gross Carrying Amount, Total 5,383us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewHopeThirtySixthAveMember
Accumulated Depreciation 2,066us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewHopeThirtySixthAveMember
Rosemount / Chippendale Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 252us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RosemountChippendaleAveMember
Initial Cost, Land 864us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RosemountChippendaleAveMember
Initial Cost, Buildings & Improvements 2,008us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RosemountChippendaleAveMember
Costs Subsequent to Acquisition 171us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RosemountChippendaleAveMember
Gross Carrying Amount, Land 865us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RosemountChippendaleAveMember
Gross Carrying Amount, Buildings 2,178us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RosemountChippendaleAveMember
Gross Carrying Amount, Total 3,043us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RosemountChippendaleAveMember
Accumulated Depreciation 956us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RosemountChippendaleAveMember
St Cloud/Franklin [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 169us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCloudFranklinMember
Initial Cost, Land 575us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCloudFranklinMember
Initial Cost, Buildings & Improvements 1,338us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCloudFranklinMember
Costs Subsequent to Acquisition 123us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCloudFranklinMember
Gross Carrying Amount, Land 576us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCloudFranklinMember
Gross Carrying Amount, Buildings 1,460us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCloudFranklinMember
Gross Carrying Amount, Total 2,036us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCloudFranklinMember
Accumulated Depreciation 650us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCloudFranklinMember
Savage / W 128th St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 439us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SavageWOneTwentyEighthStMember
Initial Cost, Land 1,522us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SavageWOneTwentyEighthStMember
Initial Cost, Buildings & Improvements 3,535us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SavageWOneTwentyEighthStMember
Costs Subsequent to Acquisition 251us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SavageWOneTwentyEighthStMember
Gross Carrying Amount, Land 1,523us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SavageWOneTwentyEighthStMember
Gross Carrying Amount, Buildings 3,785us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SavageWOneTwentyEighthStMember
Gross Carrying Amount, Total 5,308us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SavageWOneTwentyEighthStMember
Accumulated Depreciation 1,630us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SavageWOneTwentyEighthStMember
Spring Lake Park/Hwy 65 NE [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 471us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpringLakeParkHwySixFiveNeMember
Initial Cost, Land 1,534us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpringLakeParkHwySixFiveNeMember
Initial Cost, Buildings & Improvements 3,562us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpringLakeParkHwySixFiveNeMember
Costs Subsequent to Acquisition 593us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpringLakeParkHwySixFiveNeMember
Gross Carrying Amount, Land 1,535us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpringLakeParkHwySixFiveNeMember
Gross Carrying Amount, Buildings 4,154us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpringLakeParkHwySixFiveNeMember
Gross Carrying Amount, Total 5,689us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpringLakeParkHwySixFiveNeMember
Accumulated Depreciation 1,981us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpringLakeParkHwySixFiveNeMember
St Paul / Eaton St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
Initial Cost, Land 1,161us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulEatonStMember
Initial Cost, Buildings & Improvements 2,698us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulEatonStMember
Costs Subsequent to Acquisition 213us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulEatonStMember
Gross Carrying Amount, Land 1,163us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulEatonStMember
Gross Carrying Amount, Buildings 2,909us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulEatonStMember
Gross Carrying Amount, Total 4,072us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulEatonStMember
Accumulated Depreciation 1,287us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulEatonStMember
St Paul-Hartzell / Wabash Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
Initial Cost, Land 1,207us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulHartzellWabashAveMember
Initial Cost, Buildings & Improvements 2,816us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulHartzellWabashAveMember
Costs Subsequent to Acquisition 433us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulHartzellWabashAveMember
Gross Carrying Amount, Land 1,206us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulHartzellWabashAveMember
Gross Carrying Amount, Buildings 3,250us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulHartzellWabashAveMember
Gross Carrying Amount, Total 4,456us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulHartzellWabashAveMember
Accumulated Depreciation 1,518us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulHartzellWabashAveMember
West St Paul / Marie Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
Initial Cost, Land 1,447us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestStPaulMarieAveMember
Initial Cost, Buildings & Improvements 3,361us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestStPaulMarieAveMember
Costs Subsequent to Acquisition 1,455us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestStPaulMarieAveMember
Gross Carrying Amount, Land 1,449us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestStPaulMarieAveMember
Gross Carrying Amount, Buildings 4,814us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestStPaulMarieAveMember
Gross Carrying Amount, Total 6,263us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestStPaulMarieAveMember
Accumulated Depreciation 2,589us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestStPaulMarieAveMember
Stillwater / Memorial Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 478us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StillwaterMemorialAveMember
Initial Cost, Land 1,669us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StillwaterMemorialAveMember
Initial Cost, Buildings & Improvements 3,876us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StillwaterMemorialAveMember
Costs Subsequent to Acquisition 233us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StillwaterMemorialAveMember
Gross Carrying Amount, Land 1,671us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StillwaterMemorialAveMember
Gross Carrying Amount, Buildings 4,107us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StillwaterMemorialAveMember
Gross Carrying Amount, Total 5,778us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StillwaterMemorialAveMember
Accumulated Depreciation 1,763us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StillwaterMemorialAveMember
St Paul-VadnaisHts/Birch Lake Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 286us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulVadnaisHtsBirchLakeRdMember
Initial Cost, Land 928us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulVadnaisHtsBirchLakeRdMember
Initial Cost, Buildings & Improvements 2,157us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulVadnaisHtsBirchLakeRdMember
Costs Subsequent to Acquisition 374us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulVadnaisHtsBirchLakeRdMember
Gross Carrying Amount, Land 929us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulVadnaisHtsBirchLakeRdMember
Gross Carrying Amount, Buildings 2,530us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulVadnaisHtsBirchLakeRdMember
Gross Carrying Amount, Total 3,459us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulVadnaisHtsBirchLakeRdMember
Accumulated Depreciation 1,218us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StPaulVadnaisHtsBirchLakeRdMember
Woodbury / Hudson Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
Initial Cost, Land 1,863us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodburyHudsonRoadMember
Initial Cost, Buildings & Improvements 4,327us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodburyHudsonRoadMember
Costs Subsequent to Acquisition 311us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodburyHudsonRoadMember
Gross Carrying Amount, Land 1,857us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodburyHudsonRoadMember
Gross Carrying Amount, Buildings 4,644us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodburyHudsonRoadMember
Gross Carrying Amount, Total 6,501us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodburyHudsonRoadMember
Accumulated Depreciation 2,091us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodburyHudsonRoadMember
Brown Deer / N Green Bay Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 308us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrownDeerNGreenBayRdMember
Initial Cost, Land 1,059us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrownDeerNGreenBayRdMember
Initial Cost, Buildings & Improvements 2,461us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrownDeerNGreenBayRdMember
Costs Subsequent to Acquisition 202us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrownDeerNGreenBayRdMember
Gross Carrying Amount, Land 1,060us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrownDeerNGreenBayRdMember
Gross Carrying Amount, Buildings 2,662us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrownDeerNGreenBayRdMember
Gross Carrying Amount, Total 3,722us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrownDeerNGreenBayRdMember
Accumulated Depreciation 1,178us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrownDeerNGreenBayRdMember
Germantown / Spaten Court [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 175us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GermantownSpatenCourtMember
Initial Cost, Land 607us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GermantownSpatenCourtMember
Initial Cost, Buildings & Improvements 1,411us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GermantownSpatenCourtMember
Costs Subsequent to Acquisition 95us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GermantownSpatenCourtMember
Gross Carrying Amount, Land 608us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GermantownSpatenCourtMember
Gross Carrying Amount, Buildings 1,505us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GermantownSpatenCourtMember
Gross Carrying Amount, Total 2,113us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GermantownSpatenCourtMember
Accumulated Depreciation 656us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GermantownSpatenCourtMember
Milwaukee/ N 77th St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 370us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeNSeventySeventhStMember
Initial Cost, Land 1,241us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeNSeventySeventhStMember
Initial Cost, Buildings & Improvements 2,882us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeNSeventySeventhStMember
Costs Subsequent to Acquisition 349us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeNSeventySeventhStMember
Gross Carrying Amount, Land 1,242us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeNSeventySeventhStMember
Gross Carrying Amount, Buildings 3,230us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeNSeventySeventhStMember
Gross Carrying Amount, Total 4,472us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeNSeventySeventhStMember
Accumulated Depreciation 1,445us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeNSeventySeventhStMember
Milwaukee/ S 13th St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 434us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeSThirteenthStMember
Initial Cost, Land 1,484us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeSThirteenthStMember
Initial Cost, Buildings & Improvements 3,446us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeSThirteenthStMember
Costs Subsequent to Acquisition 311us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeSThirteenthStMember
Gross Carrying Amount, Land 1,485us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeSThirteenthStMember
Gross Carrying Amount, Buildings 3,756us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeSThirteenthStMember
Gross Carrying Amount, Total 5,241us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeSThirteenthStMember
Accumulated Depreciation 1,636us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeSThirteenthStMember
Oak Creek / S 27th St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 224us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakCreekSTwentySeventhStMember
Initial Cost, Land 751us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakCreekSTwentySeventhStMember
Initial Cost, Buildings & Improvements 1,746us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakCreekSTwentySeventhStMember
Costs Subsequent to Acquisition 213us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakCreekSTwentySeventhStMember
Gross Carrying Amount, Land 752us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakCreekSTwentySeventhStMember
Gross Carrying Amount, Buildings 1,958us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakCreekSTwentySeventhStMember
Gross Carrying Amount, Total 2,710us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakCreekSTwentySeventhStMember
Accumulated Depreciation 881us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakCreekSTwentySeventhStMember
Waukesha / Arcadian Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 488us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeshaArcadianAveMember
Initial Cost, Land 1,665us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeshaArcadianAveMember
Initial Cost, Buildings & Improvements 3,868us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeshaArcadianAveMember
Costs Subsequent to Acquisition 364us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeshaArcadianAveMember
Gross Carrying Amount, Land 1,667us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeshaArcadianAveMember
Gross Carrying Amount, Buildings 4,230us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeshaArcadianAveMember
Gross Carrying Amount, Total 5,897us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeshaArcadianAveMember
Accumulated Depreciation 1,891us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeshaArcadianAveMember
West Allis / W Lincoln Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
2014 Encumbrances 407us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestAllisWLincolnAveMember
Initial Cost, Land 1,390us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestAllisWLincolnAveMember
Initial Cost, Buildings & Improvements 3,227us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestAllisWLincolnAveMember
Costs Subsequent to Acquisition 300us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestAllisWLincolnAveMember
Gross Carrying Amount, Land 1,391us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestAllisWLincolnAveMember
Gross Carrying Amount, Buildings 3,526us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestAllisWLincolnAveMember
Gross Carrying Amount, Total 4,917us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestAllisWLincolnAveMember
Accumulated Depreciation 1,569us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WestAllisWLincolnAveMember
Garland / O'Banion Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
Initial Cost, Land 606us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandOBanionRdMember
Initial Cost, Buildings & Improvements 1,414us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandOBanionRdMember
Costs Subsequent to Acquisition 201us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandOBanionRdMember
Gross Carrying Amount, Land 608us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandOBanionRdMember
Gross Carrying Amount, Buildings 1,613us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandOBanionRdMember
Gross Carrying Amount, Total 2,221us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandOBanionRdMember
Accumulated Depreciation 743us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandOBanionRdMember
Grand Prairie/ Hwy360 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
Initial Cost, Land 942us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GrandPrairieHwyThreeSixZreoMember
Initial Cost, Buildings & Improvements 2,198us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GrandPrairieHwyThreeSixZreoMember
Costs Subsequent to Acquisition 179us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GrandPrairieHwyThreeSixZreoMember
Gross Carrying Amount, Land 944us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GrandPrairieHwyThreeSixZreoMember
Gross Carrying Amount, Buildings 2,375us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GrandPrairieHwyThreeSixZreoMember
Gross Carrying Amount, Total 3,319us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GrandPrairieHwyThreeSixZreoMember
Accumulated Depreciation 1,055us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GrandPrairieHwyThreeSixZreoMember
Duncanville/N Duncnvill [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
Initial Cost, Land 1,524us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DuncanvilleNDuncnvillMember
Initial Cost, Buildings & Improvements 3,556us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DuncanvilleNDuncnvillMember
Costs Subsequent to Acquisition 615us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DuncanvilleNDuncnvillMember
Gross Carrying Amount, Land 1,525us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DuncanvilleNDuncnvillMember
Gross Carrying Amount, Buildings 4,170us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DuncanvilleNDuncnvillMember
Gross Carrying Amount, Total 5,695us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DuncanvilleNDuncnvillMember
Accumulated Depreciation 1,932us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DuncanvilleNDuncnvillMember
Lancaster/ W Pleasant [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
Initial Cost, Land 993us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LancasterWPleasantMember
Initial Cost, Buildings & Improvements 2,317us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LancasterWPleasantMember
Costs Subsequent to Acquisition 188us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LancasterWPleasantMember
Gross Carrying Amount, Land 995us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LancasterWPleasantMember
Gross Carrying Amount, Buildings 2,503us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LancasterWPleasantMember
Gross Carrying Amount, Total 3,498us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LancasterWPleasantMember
Accumulated Depreciation 1,099us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LancasterWPleasantMember
Mesquite / Oates Dr [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
Initial Cost, Land 937us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MesquiteOatesDrMember
Initial Cost, Buildings & Improvements 2,186us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MesquiteOatesDrMember
Costs Subsequent to Acquisition 184us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MesquiteOatesDrMember
Gross Carrying Amount, Land 939us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MesquiteOatesDrMember
Gross Carrying Amount, Buildings 2,368us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MesquiteOatesDrMember
Gross Carrying Amount, Total 3,307us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MesquiteOatesDrMember
Accumulated Depreciation 1,051us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MesquiteOatesDrMember
Dallas / E NW Hwy [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2004
Initial Cost, Land 942us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasENwHwyMember
Initial Cost, Buildings & Improvements 2,198us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasENwHwyMember
Costs Subsequent to Acquisition 185us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasENwHwyMember
Gross Carrying Amount, Land 944us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasENwHwyMember
Gross Carrying Amount, Buildings 2,381us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasENwHwyMember
Gross Carrying Amount, Total 3,325us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasENwHwyMember
Accumulated Depreciation 1,055us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasENwHwyMember
Pompano Beach/E. Sample [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Nov. 24, 2004
Initial Cost, Land 1,608us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PompanoBeachESampleMember
Initial Cost, Buildings & Improvements 3,754us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PompanoBeachESampleMember
Costs Subsequent to Acquisition 296us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PompanoBeachESampleMember
Gross Carrying Amount, Land 1,621us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PompanoBeachESampleMember
Gross Carrying Amount, Buildings 4,037us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PompanoBeachESampleMember
Gross Carrying Amount, Total 5,658us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PompanoBeachESampleMember
Accumulated Depreciation 1,726us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PompanoBeachESampleMember
Davie / SW 41st St. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Nov. 24, 2004
Initial Cost, Land 2,467us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DavieSwFortyFirstStMember
Initial Cost, Buildings & Improvements 5,758us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DavieSwFortyFirstStMember
Costs Subsequent to Acquisition 329us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DavieSwFortyFirstStMember
Gross Carrying Amount, Land 2,466us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DavieSwFortyFirstStMember
Gross Carrying Amount, Buildings 6,088us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DavieSwFortyFirstStMember
Gross Carrying Amount, Total 8,554us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DavieSwFortyFirstStMember
Accumulated Depreciation 2,599us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DavieSwFortyFirstStMember
North Bay Village/Kennedy [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Nov. 24, 2004
Initial Cost, Land 3,275us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthBayVillageKennedyMember
Initial Cost, Buildings & Improvements 7,644us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthBayVillageKennedyMember
Costs Subsequent to Acquisition 372us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthBayVillageKennedyMember
Gross Carrying Amount, Land 3,274us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthBayVillageKennedyMember
Gross Carrying Amount, Buildings 8,017us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthBayVillageKennedyMember
Gross Carrying Amount, Total 11,291us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthBayVillageKennedyMember
Accumulated Depreciation 3,384us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthBayVillageKennedyMember
Miami / Biscayne Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Nov. 24, 2004
Initial Cost, Land 3,538us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBiscayneBlvdOmniMember
Initial Cost, Buildings & Improvements 8,258us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBiscayneBlvdOmniMember
Costs Subsequent to Acquisition 285us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBiscayneBlvdOmniMember
Gross Carrying Amount, Land 3,537us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBiscayneBlvdOmniMember
Gross Carrying Amount, Buildings 8,544us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBiscayneBlvdOmniMember
Gross Carrying Amount, Total 12,081us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBiscayneBlvdOmniMember
Accumulated Depreciation 3,640us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBiscayneBlvdOmniMember
Miami Gardens/NW 57th St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Nov. 24, 2004
Initial Cost, Land 2,706us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiGardensNwFiftySeventhStMember
Initial Cost, Buildings & Improvements 6,316us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiGardensNwFiftySeventhStMember
Costs Subsequent to Acquisition 232us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiGardensNwFiftySeventhStMember
Gross Carrying Amount, Land 2,706us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiGardensNwFiftySeventhStMember
Gross Carrying Amount, Buildings 6,548us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiGardensNwFiftySeventhStMember
Gross Carrying Amount, Total 9,254us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiGardensNwFiftySeventhStMember
Accumulated Depreciation 2,789us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiGardensNwFiftySeventhStMember
Tamarac/ N University Dr [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Nov. 24, 2004
Initial Cost, Land 2,580us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TamaracNUniversityDrMember
Initial Cost, Buildings & Improvements 6,022us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TamaracNUniversityDrMember
Costs Subsequent to Acquisition 302us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TamaracNUniversityDrMember
Gross Carrying Amount, Land 2,580us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TamaracNUniversityDrMember
Gross Carrying Amount, Buildings 6,324us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TamaracNUniversityDrMember
Gross Carrying Amount, Total 8,904us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TamaracNUniversityDrMember
Accumulated Depreciation 2,662us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TamaracNUniversityDrMember
Miami / SW 31st Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Nov. 24, 2004
Initial Cost, Land 11,574us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwThirtyFirstAveMember
Initial Cost, Buildings & Improvements 27,009us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwThirtyFirstAveMember
Costs Subsequent to Acquisition 407us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwThirtyFirstAveMember
Gross Carrying Amount, Land 11,571us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwThirtyFirstAveMember
Gross Carrying Amount, Buildings 27,419us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwThirtyFirstAveMember
Gross Carrying Amount, Total 38,990us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwThirtyFirstAveMember
Accumulated Depreciation 11,322us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwThirtyFirstAveMember
Hialeah / W 20th Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Nov. 24, 2004
Initial Cost, Land 2,224us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HialeahW20thAveMember
Initial Cost, Buildings & Improvements 5,192us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HialeahW20thAveMember
Costs Subsequent to Acquisition 507us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HialeahW20thAveMember
Gross Carrying Amount, Land 2,224us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HialeahW20thAveMember
Gross Carrying Amount, Buildings 5,699us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HialeahW20thAveMember
Gross Carrying Amount, Total 7,923us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HialeahW20thAveMember
Accumulated Depreciation 2,665us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HialeahW20thAveMember
Miami / SW 42nd St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Nov. 24, 2004
Initial Cost, Land 2,955us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwFortySecondStMember
Initial Cost, Buildings & Improvements 6,897us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwFortySecondStMember
Costs Subsequent to Acquisition 612us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwFortySecondStMember
Gross Carrying Amount, Land 2,958us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwFortySecondStMember
Gross Carrying Amount, Buildings 7,506us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwFortySecondStMember
Gross Carrying Amount, Total 10,464us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwFortySecondStMember
Accumulated Depreciation 3,454us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwFortySecondStMember
Miami / SW 40th St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Nov. 24, 2004
Initial Cost, Land 2,933us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwFortiethStMember
Initial Cost, Buildings & Improvements 6,844us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwFortiethStMember
Costs Subsequent to Acquisition 653us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwFortiethStMember
Gross Carrying Amount, Land 2,932us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwFortiethStMember
Gross Carrying Amount, Buildings 7,498us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwFortiethStMember
Gross Carrying Amount, Total 10,430us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwFortiethStMember
Accumulated Depreciation 3,480us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSwFortiethStMember
Carlsbad/CorteDelAbeto [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Nov. 25, 2004
Initial Cost, Land 2,861us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarlsbadCorteDelAbetoMember
Initial Cost, Buildings & Improvements 6,676us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarlsbadCorteDelAbetoMember
Costs Subsequent to Acquisition 3,221us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarlsbadCorteDelAbetoMember
Gross Carrying Amount, Land 2,861us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarlsbadCorteDelAbetoMember
Gross Carrying Amount, Buildings 9,897us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarlsbadCorteDelAbetoMember
Gross Carrying Amount, Total 12,758us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarlsbadCorteDelAbetoMember
Accumulated Depreciation 3,864us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarlsbadCorteDelAbetoMember
Cheektowaga / William St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 19, 2005
Initial Cost, Land 965us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CheektowagaWilliamStMember
Initial Cost, Buildings & Improvements 2,262us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CheektowagaWilliamStMember
Costs Subsequent to Acquisition 115us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CheektowagaWilliamStMember
Gross Carrying Amount, Land 964us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CheektowagaWilliamStMember
Gross Carrying Amount, Buildings 2,378us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CheektowagaWilliamStMember
Gross Carrying Amount, Total 3,342us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CheektowagaWilliamStMember
Accumulated Depreciation 1,104us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CheektowagaWilliamStMember
Amherst / Millersport Hwy [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 19, 2005
Initial Cost, Land 1,431us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AmherstMillersportHwyMember
Initial Cost, Buildings & Improvements 3,350us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AmherstMillersportHwyMember
Costs Subsequent to Acquisition 102us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AmherstMillersportHwyMember
Gross Carrying Amount, Land 1,431us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AmherstMillersportHwyMember
Gross Carrying Amount, Buildings 3,452us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AmherstMillersportHwyMember
Gross Carrying Amount, Total 4,883us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AmherstMillersportHwyMember
Accumulated Depreciation 1,621us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AmherstMillersportHwyMember
Lancaster / Walden Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 19, 2005
Initial Cost, Land 528us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LancasterWaldenAveMember
Initial Cost, Buildings & Improvements 1,244us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LancasterWaldenAveMember
Costs Subsequent to Acquisition 166us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LancasterWaldenAveMember
Gross Carrying Amount, Land 528us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LancasterWaldenAveMember
Gross Carrying Amount, Buildings 1,410us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LancasterWaldenAveMember
Gross Carrying Amount, Total 1,938us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LancasterWaldenAveMember
Accumulated Depreciation 689us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LancasterWaldenAveMember
Tonawanda/HospitalityCentreWay [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 19, 2005
Initial Cost, Land 1,205us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TonawandaHospitalityCentreWayMember
Initial Cost, Buildings & Improvements 2,823us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TonawandaHospitalityCentreWayMember
Costs Subsequent to Acquisition 110us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TonawandaHospitalityCentreWayMember
Gross Carrying Amount, Land 1,205us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TonawandaHospitalityCentreWayMember
Gross Carrying Amount, Buildings 2,933us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TonawandaHospitalityCentreWayMember
Gross Carrying Amount, Total 4,138us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TonawandaHospitalityCentreWayMember
Accumulated Depreciation 1,364us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TonawandaHospitalityCentreWayMember
Wheatfield / Niagara Falls Blv [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 19, 2005
Initial Cost, Land 1,130us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WheatfieldNiagaraFallsBlvMember
Initial Cost, Buildings & Improvements 2,649us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WheatfieldNiagaraFallsBlvMember
Costs Subsequent to Acquisition 91us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WheatfieldNiagaraFallsBlvMember
Gross Carrying Amount, Land 1,130us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WheatfieldNiagaraFallsBlvMember
Gross Carrying Amount, Buildings 2,740us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WheatfieldNiagaraFallsBlvMember
Gross Carrying Amount, Total 3,870us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WheatfieldNiagaraFallsBlvMember
Accumulated Depreciation 1,280us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WheatfieldNiagaraFallsBlvMember
Oak Lawn / Southwest Hwy [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 20, 2005
Initial Cost, Land 1,850us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakLawnSouthwestHwyMember
Initial Cost, Buildings & Improvements 4,330us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakLawnSouthwestHwyMember
Costs Subsequent to Acquisition 314us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakLawnSouthwestHwyMember
Gross Carrying Amount, Land 1,850us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakLawnSouthwestHwyMember
Gross Carrying Amount, Buildings 4,644us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakLawnSouthwestHwyMember
Gross Carrying Amount, Total 6,494us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakLawnSouthwestHwyMember
Accumulated Depreciation 2,179us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakLawnSouthwestHwyMember
Owings Mills / Reisterstown Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Feb. 25, 2005
Initial Cost, Land 887us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OwingsMillsReisterstownRdMember
Initial Cost, Buildings & Improvements 3,865us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OwingsMillsReisterstownRdMember
Costs Subsequent to Acquisition 20us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OwingsMillsReisterstownRdMember
Gross Carrying Amount, Land 887us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OwingsMillsReisterstownRdMember
Gross Carrying Amount, Buildings 3,885us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OwingsMillsReisterstownRdMember
Gross Carrying Amount, Total 4,772us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OwingsMillsReisterstownRdMember
Accumulated Depreciation 1,551us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OwingsMillsReisterstownRdMember
Hoboken / 8th St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Apr. 26, 2005
Initial Cost, Land 3,963us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HobokenEighthStMember
Initial Cost, Buildings & Improvements 9,290us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HobokenEighthStMember
Costs Subsequent to Acquisition 567us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HobokenEighthStMember
Gross Carrying Amount, Land 3,962us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HobokenEighthStMember
Gross Carrying Amount, Buildings 9,858us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HobokenEighthStMember
Gross Carrying Amount, Total 13,820us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HobokenEighthStMember
Accumulated Depreciation 4,630us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HobokenEighthStMember
Bayville / 939 Route 9 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired May 03, 2005
Initial Cost, Land 1,928us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BayvilleNineThreeNineRouteNineMember
Initial Cost, Buildings & Improvements 4,519us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BayvilleNineThreeNineRouteNineMember
Costs Subsequent to Acquisition 137us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BayvilleNineThreeNineRouteNineMember
Gross Carrying Amount, Land 1,928us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BayvilleNineThreeNineRouteNineMember
Gross Carrying Amount, Buildings 4,656us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BayvilleNineThreeNineRouteNineMember
Gross Carrying Amount, Total 6,584us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BayvilleNineThreeNineRouteNineMember
Accumulated Depreciation 2,132us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BayvilleNineThreeNineRouteNineMember
Bricktown / Burnt Tavern Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired May 03, 2005
Initial Cost, Land 3,522us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BricktownBurntTavernRdMember
Initial Cost, Buildings & Improvements 8,239us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BricktownBurntTavernRdMember
Costs Subsequent to Acquisition 214us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BricktownBurntTavernRdMember
Gross Carrying Amount, Land 3,521us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BricktownBurntTavernRdMember
Gross Carrying Amount, Buildings 8,454us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BricktownBurntTavernRdMember
Gross Carrying Amount, Total 11,975us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BricktownBurntTavernRdMember
Accumulated Depreciation 3,854us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BricktownBurntTavernRdMember
JacksonTwnshp/N.County Line Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired May 03, 2005
Initial Cost, Land 1,555us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonTwnshpNCountyLineRdMember
Initial Cost, Buildings & Improvements 3,647us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonTwnshpNCountyLineRdMember
Costs Subsequent to Acquisition 141us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonTwnshpNCountyLineRdMember
Gross Carrying Amount, Land 1,554us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonTwnshpNCountyLineRdMember
Gross Carrying Amount, Buildings 3,789us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonTwnshpNCountyLineRdMember
Gross Carrying Amount, Total 5,343us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonTwnshpNCountyLineRdMember
Accumulated Depreciation 1,718us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonTwnshpNCountyLineRdMember
Methuen / Pleasant Valley St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired May 16, 2005
Initial Cost, Land 2,263us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MethuenPleasantValleyStMember
Initial Cost, Buildings & Improvements 4,540us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MethuenPleasantValleyStMember
Costs Subsequent to Acquisition 209us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MethuenPleasantValleyStMember
Gross Carrying Amount, Land 2,263us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MethuenPleasantValleyStMember
Gross Carrying Amount, Buildings 4,749us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MethuenPleasantValleyStMember
Gross Carrying Amount, Total 7,012us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MethuenPleasantValleyStMember
Accumulated Depreciation 1,875us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MethuenPleasantValleyStMember
Libertyville / Kelley Crt [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired May 19, 2005
Initial Cost, Land 2,042us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LibertyvilleKelleyCrtMember
Initial Cost, Buildings & Improvements 4,783us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LibertyvilleKelleyCrtMember
Costs Subsequent to Acquisition 156us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LibertyvilleKelleyCrtMember
Gross Carrying Amount, Land 2,042us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LibertyvilleKelleyCrtMember
Gross Carrying Amount, Buildings 4,939us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LibertyvilleKelleyCrtMember
Gross Carrying Amount, Total 6,981us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LibertyvilleKelleyCrtMember
Accumulated Depreciation 2,245us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LibertyvilleKelleyCrtMember
Joliet / Essington [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired May 19, 2005
Initial Cost, Land 1,434us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JolietEssingtonMember
Initial Cost, Buildings & Improvements 3,367us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JolietEssingtonMember
Costs Subsequent to Acquisition 181us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JolietEssingtonMember
Gross Carrying Amount, Land 1,434us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JolietEssingtonMember
Gross Carrying Amount, Buildings 3,548us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JolietEssingtonMember
Gross Carrying Amount, Total 4,982us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JolietEssingtonMember
Accumulated Depreciation 1,639us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JolietEssingtonMember
Atlanta/Howell Mill Rd NW [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 15, 2005
Initial Cost, Land 1,864us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaHowellMillRdNwMember
Initial Cost, Buildings & Improvements 4,363us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaHowellMillRdNwMember
Costs Subsequent to Acquisition 105us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaHowellMillRdNwMember
Gross Carrying Amount, Land 1,864us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaHowellMillRdNwMember
Gross Carrying Amount, Buildings 4,468us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaHowellMillRdNwMember
Gross Carrying Amount, Total 6,332us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaHowellMillRdNwMember
Accumulated Depreciation 2,002us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaHowellMillRdNwMember
Smyrna / Herodian Way SE [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 15, 2005
Initial Cost, Land 1,294us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SmyrnaHerodianWaySeMember
Initial Cost, Buildings & Improvements 3,032us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SmyrnaHerodianWaySeMember
Costs Subsequent to Acquisition 262us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SmyrnaHerodianWaySeMember
Gross Carrying Amount, Land 1,293us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SmyrnaHerodianWaySeMember
Gross Carrying Amount, Buildings 3,295us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SmyrnaHerodianWaySeMember
Gross Carrying Amount, Total 4,588us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SmyrnaHerodianWaySeMember
Accumulated Depreciation 1,481us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SmyrnaHerodianWaySeMember
Lithonia / Minola Dr [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 07, 2005
Initial Cost, Land 1,273us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LithoniaMinolaDrMember
Initial Cost, Buildings & Improvements 2,985us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LithoniaMinolaDrMember
Costs Subsequent to Acquisition 217us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LithoniaMinolaDrMember
Gross Carrying Amount, Land 1,272us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LithoniaMinolaDrMember
Gross Carrying Amount, Buildings 3,203us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LithoniaMinolaDrMember
Gross Carrying Amount, Total 4,475us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LithoniaMinolaDrMember
Accumulated Depreciation 1,446us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LithoniaMinolaDrMember
Kennesaw / Bells Ferry Rd NW [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 14, 2005
Initial Cost, Land 1,264us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennesawBellsFerryRdNwMember
Initial Cost, Buildings & Improvements 2,976us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennesawBellsFerryRdNwMember
Costs Subsequent to Acquisition 884us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennesawBellsFerryRdNwMember
Gross Carrying Amount, Land 1,264us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennesawBellsFerryRdNwMember
Gross Carrying Amount, Buildings 3,860us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennesawBellsFerryRdNwMember
Gross Carrying Amount, Total 5,124us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennesawBellsFerryRdNwMember
Accumulated Depreciation 1,676us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennesawBellsFerryRdNwMember
Atlanta / Monroe Dr NE [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 28, 2005
Initial Cost, Land 2,914us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaMonroeDrNeMember
Initial Cost, Buildings & Improvements 6,829us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaMonroeDrNeMember
Costs Subsequent to Acquisition 1,123us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaMonroeDrNeMember
Gross Carrying Amount, Land 2,913us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaMonroeDrNeMember
Gross Carrying Amount, Buildings 7,953us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaMonroeDrNeMember
Gross Carrying Amount, Total 10,866us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaMonroeDrNeMember
Accumulated Depreciation 3,495us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaMonroeDrNeMember
Suwanee / Old Peachtree Rd NE [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Aug. 11, 2005
Initial Cost, Land 1,914us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SuwaneeOldPeachtreeRdNeMember
Initial Cost, Buildings & Improvements 4,497us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SuwaneeOldPeachtreeRdNeMember
Costs Subsequent to Acquisition 289us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SuwaneeOldPeachtreeRdNeMember
Gross Carrying Amount, Land 1,914us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SuwaneeOldPeachtreeRdNeMember
Gross Carrying Amount, Buildings 4,786us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SuwaneeOldPeachtreeRdNeMember
Gross Carrying Amount, Total 6,700us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SuwaneeOldPeachtreeRdNeMember
Accumulated Depreciation 2,171us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SuwaneeOldPeachtreeRdNeMember
Brandon / Providence Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 08, 2005
Initial Cost, Land 2,592us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrandonProvidenceRdMember
Initial Cost, Buildings & Improvements 6,067us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrandonProvidenceRdMember
Costs Subsequent to Acquisition 241us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrandonProvidenceRdMember
Gross Carrying Amount, Land 2,592us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrandonProvidenceRdMember
Gross Carrying Amount, Buildings 6,308us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrandonProvidenceRdMember
Gross Carrying Amount, Total 8,900us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrandonProvidenceRdMember
Accumulated Depreciation 2,770us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrandonProvidenceRdMember
Woodstock / Hwy 92 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 15, 2005
Initial Cost, Land 1,251us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodstockHwyNineTwoMember
Initial Cost, Buildings & Improvements 2,935us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodstockHwyNineTwoMember
Costs Subsequent to Acquisition 140us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodstockHwyNineTwoMember
Gross Carrying Amount, Land 1,250us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodstockHwyNineTwoMember
Gross Carrying Amount, Buildings 3,076us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodstockHwyNineTwoMember
Gross Carrying Amount, Total 4,326us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodstockHwyNineTwoMember
Accumulated Depreciation 1,355us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodstockHwyNineTwoMember
Charlotte / W. Arrowood Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 22, 2005
Initial Cost, Land 1,426us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteWArrowoodRdMember
Initial Cost, Buildings & Improvements 3,335us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteWArrowoodRdMember
Costs Subsequent to Acquisition (70)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteWArrowoodRdMember
Gross Carrying Amount, Land 1,153us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteWArrowoodRdMember
Gross Carrying Amount, Buildings 3,538us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteWArrowoodRdMember
Gross Carrying Amount, Total 4,691us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteWArrowoodRdMember
Accumulated Depreciation 1,529us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteWArrowoodRdMember
Jacksonville Beach / Beach Bl [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 05, 2005
Initial Cost, Land 2,552us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleBeachBeachBlMember
Initial Cost, Buildings & Improvements 5,981us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleBeachBeachBlMember
Costs Subsequent to Acquisition 235us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleBeachBeachBlMember
Gross Carrying Amount, Land 2,552us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleBeachBeachBlMember
Gross Carrying Amount, Buildings 6,216us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleBeachBeachBlMember
Gross Carrying Amount, Total 8,768us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleBeachBeachBlMember
Accumulated Depreciation 2,733us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleBeachBeachBlMember
Bronx / Brush Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 05, 2005
Initial Cost, Land 4,517us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BronxBrushAveMember
Initial Cost, Buildings & Improvements 10,581us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BronxBrushAveMember
Costs Subsequent to Acquisition 247us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BronxBrushAveMember
Gross Carrying Amount, Land 4,516us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BronxBrushAveMember
Gross Carrying Amount, Buildings 10,829us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BronxBrushAveMember
Gross Carrying Amount, Total 15,345us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BronxBrushAveMember
Accumulated Depreciation 4,697us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BronxBrushAveMember
Austin / E. Ben White Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 11, 2005
Initial Cost, Land 213us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinEBenWhiteBlvdMember
Initial Cost, Buildings & Improvements 3,461us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinEBenWhiteBlvdMember
Costs Subsequent to Acquisition 67us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinEBenWhiteBlvdMember
Gross Carrying Amount, Land 213us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinEBenWhiteBlvdMember
Gross Carrying Amount, Buildings 3,528us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinEBenWhiteBlvdMember
Gross Carrying Amount, Total 3,741us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinEBenWhiteBlvdMember
Accumulated Depreciation 1,233us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinEBenWhiteBlvdMember
Deerfield Beach/S. Powerline R [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 13, 2005
Initial Cost, Land 3,365us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DeerfieldBeachSPowerlineRMember
Initial Cost, Buildings & Improvements 7,874us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DeerfieldBeachSPowerlineRMember
Costs Subsequent to Acquisition 302us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DeerfieldBeachSPowerlineRMember
Gross Carrying Amount, Land 3,364us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DeerfieldBeachSPowerlineRMember
Gross Carrying Amount, Buildings 8,177us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DeerfieldBeachSPowerlineRMember
Gross Carrying Amount, Total 11,541us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DeerfieldBeachSPowerlineRMember
Accumulated Depreciation 3,549us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DeerfieldBeachSPowerlineRMember
Cooper City / Sheridan St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 14, 2005
Initial Cost, Land 3,035us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CooperCitySheridanStMember
Initial Cost, Buildings & Improvements 7,092us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CooperCitySheridanStMember
Costs Subsequent to Acquisition 328us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CooperCitySheridanStMember
Gross Carrying Amount, Land 3,034us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CooperCitySheridanStMember
Gross Carrying Amount, Buildings 7,421us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CooperCitySheridanStMember
Gross Carrying Amount, Total 10,455us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CooperCitySheridanStMember
Accumulated Depreciation 3,255us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CooperCitySheridanStMember
Staten Island / Veterans Rd W. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 20, 2005
Initial Cost, Land 3,599us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StatenIslandVeteransRdWMember
Initial Cost, Buildings & Improvements 8,430us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StatenIslandVeteransRdWMember
Costs Subsequent to Acquisition 292us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StatenIslandVeteransRdWMember
Gross Carrying Amount, Land 3,598us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StatenIslandVeteransRdWMember
Gross Carrying Amount, Buildings 8,723us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StatenIslandVeteransRdWMember
Gross Carrying Amount, Total 12,321us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StatenIslandVeteransRdWMember
Accumulated Depreciation 3,791us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StatenIslandVeteransRdWMember
Pittsburg / LoveridgeCenter [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 20, 2005
Initial Cost, Land 3,602us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PittsburgLoveridgeCenterMember
Initial Cost, Buildings & Improvements 8,448us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PittsburgLoveridgeCenterMember
Costs Subsequent to Acquisition 190us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PittsburgLoveridgeCenterMember
Gross Carrying Amount, Land 3,601us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PittsburgLoveridgeCenterMember
Gross Carrying Amount, Buildings 8,639us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PittsburgLoveridgeCenterMember
Gross Carrying Amount, Total 12,240us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PittsburgLoveridgeCenterMember
Accumulated Depreciation 3,713us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PittsburgLoveridgeCenterMember
Norristown / W.Main St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 21, 2005
Initial Cost, Land 1,465us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorristownWMainStMember
Initial Cost, Buildings & Improvements 4,818us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorristownWMainStMember
Costs Subsequent to Acquisition 379us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorristownWMainStMember
Gross Carrying Amount, Land 1,465us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorristownWMainStMember
Gross Carrying Amount, Buildings 5,197us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorristownWMainStMember
Gross Carrying Amount, Total 6,662us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorristownWMainStMember
Accumulated Depreciation 1,921us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorristownWMainStMember
Miller Place / Route 25A [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Nov. 02, 2005
Initial Cost, Land 2,757us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillerPlaceRouteTwentyFiveMember
Initial Cost, Buildings & Improvements 6,459us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillerPlaceRouteTwentyFiveMember
Costs Subsequent to Acquisition 267us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillerPlaceRouteTwentyFiveMember
Gross Carrying Amount, Land 2,757us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillerPlaceRouteTwentyFiveMember
Gross Carrying Amount, Buildings 6,726us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillerPlaceRouteTwentyFiveMember
Gross Carrying Amount, Total 9,483us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillerPlaceRouteTwentyFiveMember
Accumulated Depreciation 5,289us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillerPlaceRouteTwentyFiveMember
Miami / Biscayne Blvd '05 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Nov. 18, 2005
Initial Cost, Land 7,434us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBiscayneBlvdMember
Initial Cost, Buildings & Improvements 17,268us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBiscayneBlvdMember
Costs Subsequent to Acquisition 462us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBiscayneBlvdMember
Gross Carrying Amount, Land 7,433us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBiscayneBlvdMember
Gross Carrying Amount, Buildings 17,731us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBiscayneBlvdMember
Gross Carrying Amount, Total 25,164us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBiscayneBlvdMember
Accumulated Depreciation 7,559us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBiscayneBlvdMember
Manchester / Taylor St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 01, 2005
Initial Cost, Land 1,305us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ManchesterTaylorStMember
Initial Cost, Buildings & Improvements 3,029us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ManchesterTaylorStMember
Costs Subsequent to Acquisition 201us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ManchesterTaylorStMember
Gross Carrying Amount, Land 1,305us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ManchesterTaylorStMember
Gross Carrying Amount, Buildings 3,230us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ManchesterTaylorStMember
Gross Carrying Amount, Total 4,535us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ManchesterTaylorStMember
Accumulated Depreciation 1,463us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ManchesterTaylorStMember
Buffalo Grove/E. Aptakisic Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 07, 2005
Initial Cost, Land 1,986us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BuffaloGroveEAptakisicRdMember
Initial Cost, Buildings & Improvements 4,635us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BuffaloGroveEAptakisicRdMember
Costs Subsequent to Acquisition 129us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BuffaloGroveEAptakisicRdMember
Gross Carrying Amount, Land 1,986us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BuffaloGroveEAptakisicRdMember
Gross Carrying Amount, Buildings 4,764us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BuffaloGroveEAptakisicRdMember
Gross Carrying Amount, Total 6,750us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BuffaloGroveEAptakisicRdMember
Accumulated Depreciation 2,056us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BuffaloGroveEAptakisicRdMember
Lorton / Pohick Rd & I95 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 13, 2005
Initial Cost, Land 1,167us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LortonPohickRdOneNineFiveMember
Initial Cost, Buildings & Improvements 4,582us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LortonPohickRdOneNineFiveMember
Costs Subsequent to Acquisition 439us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LortonPohickRdOneNineFiveMember
Gross Carrying Amount, Land 1,184us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LortonPohickRdOneNineFiveMember
Gross Carrying Amount, Buildings 5,004us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LortonPohickRdOneNineFiveMember
Gross Carrying Amount, Total 6,188us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LortonPohickRdOneNineFiveMember
Accumulated Depreciation 1,878us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LortonPohickRdOneNineFiveMember
Pico Rivera / Washington Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 16, 2005
Initial Cost, Land 4,719us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PicoRiveraWashingtonBlvdMember
Initial Cost, Buildings & Improvements 11,012us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PicoRiveraWashingtonBlvdMember
Costs Subsequent to Acquisition 122us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PicoRiveraWashingtonBlvdMember
Gross Carrying Amount, Land 4,719us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PicoRiveraWashingtonBlvdMember
Gross Carrying Amount, Buildings 11,134us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PicoRiveraWashingtonBlvdMember
Gross Carrying Amount, Total 15,853us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PicoRiveraWashingtonBlvdMember
Accumulated Depreciation 4,728us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PicoRiveraWashingtonBlvdMember
Queens Village / Jamaica Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 27, 2005
Initial Cost, Land 3,409us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_QueensVillageJamaicaAveMember
Initial Cost, Buildings & Improvements 5,494us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_QueensVillageJamaicaAveMember
Costs Subsequent to Acquisition 116us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_QueensVillageJamaicaAveMember
Gross Carrying Amount, Land 3,409us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_QueensVillageJamaicaAveMember
Gross Carrying Amount, Buildings 5,610us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_QueensVillageJamaicaAveMember
Gross Carrying Amount, Total 9,019us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_QueensVillageJamaicaAveMember
Accumulated Depreciation $ 2,243us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_QueensVillageJamaicaAveMember