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Schedule III - Real Estate And Accumulated Depreciation (Properties Acquired From 1999 To 2001) (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
New Orleans/St.Charles [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 01, 1999
Initial Cost, Land 1,463us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewOrleansStCharlesMember
Initial Cost, Buildings & Improvements 2,634us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewOrleansStCharlesMember
Costs Subsequent to Acquisition 723us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewOrleansStCharlesMember
Gross Carrying Amount, Land 1,039us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewOrleansStCharlesMember
Gross Carrying Amount, Buildings 3,781us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewOrleansStCharlesMember
Gross Carrying Amount, Total 4,820us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewOrleansStCharlesMember
Accumulated Depreciation 2,303us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewOrleansStCharlesMember
Brandon / E. Brandon Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 06, 1999
Initial Cost, Land 1,560us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrandonEBrandonBlvdMember
Initial Cost, Buildings & Improvements 3,695us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrandonEBrandonBlvdMember
Costs Subsequent to Acquisition 270us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrandonEBrandonBlvdMember
Gross Carrying Amount, Land 1,560us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrandonEBrandonBlvdMember
Gross Carrying Amount, Buildings 3,965us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrandonEBrandonBlvdMember
Gross Carrying Amount, Total 5,525us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrandonEBrandonBlvdMember
Accumulated Depreciation 2,496us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrandonEBrandonBlvdMember
St. Louis / N. Lindbergh Blvd. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,688us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisNLindberghBlvdMember
Initial Cost, Buildings & Improvements 3,939us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisNLindberghBlvdMember
Costs Subsequent to Acquisition 642us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisNLindberghBlvdMember
Gross Carrying Amount, Land 1,688us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisNLindberghBlvdMember
Gross Carrying Amount, Buildings 4,581us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisNLindberghBlvdMember
Gross Carrying Amount, Total 6,269us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisNLindberghBlvdMember
Accumulated Depreciation 3,137us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisNLindberghBlvdMember
St. Louis / Vandeventer Midtown [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 699us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisVandeventerMidtownMember
Initial Cost, Buildings & Improvements 1,631us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisVandeventerMidtownMember
Costs Subsequent to Acquisition 611us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisVandeventerMidtownMember
Gross Carrying Amount, Land 699us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisVandeventerMidtownMember
Gross Carrying Amount, Buildings 2,242us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisVandeventerMidtownMember
Gross Carrying Amount, Total 2,941us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisVandeventerMidtownMember
Accumulated Depreciation 1,581us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisVandeventerMidtownMember
St. Ann / Maryland Heights [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,035us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StAnnMarylandHeightsMember
Initial Cost, Buildings & Improvements 2,414us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StAnnMarylandHeightsMember
Costs Subsequent to Acquisition 872us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StAnnMarylandHeightsMember
Gross Carrying Amount, Land 1,035us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StAnnMarylandHeightsMember
Gross Carrying Amount, Buildings 3,286us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StAnnMarylandHeightsMember
Gross Carrying Amount, Total 4,321us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StAnnMarylandHeightsMember
Accumulated Depreciation 2,156us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StAnnMarylandHeightsMember
Florissant / N. Hwy 67 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 971us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNHwySixSevenMember
Initial Cost, Buildings & Improvements 2,265us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNHwySixSevenMember
Costs Subsequent to Acquisition 423us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNHwySixSevenMember
Gross Carrying Amount, Land 971us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNHwySixSevenMember
Gross Carrying Amount, Buildings 2,688us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNHwySixSevenMember
Gross Carrying Amount, Total 3,659us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNHwySixSevenMember
Accumulated Depreciation 1,816us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNHwySixSevenMember
Ferguson Area-W Florissant [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,194us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FergusonAreaWFlorissantMember
Initial Cost, Buildings & Improvements 2,732us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FergusonAreaWFlorissantMember
Costs Subsequent to Acquisition 932us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FergusonAreaWFlorissantMember
Gross Carrying Amount, Land 1,178us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FergusonAreaWFlorissantMember
Gross Carrying Amount, Buildings 3,680us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FergusonAreaWFlorissantMember
Gross Carrying Amount, Total 4,858us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FergusonAreaWFlorissantMember
Accumulated Depreciation 2,478us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FergusonAreaWFlorissantMember
Florissant / New Halls Ferry Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,144us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNewHallsFerryRdMember
Initial Cost, Buildings & Improvements 2,670us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNewHallsFerryRdMember
Costs Subsequent to Acquisition 807us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNewHallsFerryRdMember
Gross Carrying Amount, Land 1,144us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNewHallsFerryRdMember
Gross Carrying Amount, Buildings 3,477us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNewHallsFerryRdMember
Gross Carrying Amount, Total 4,621us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNewHallsFerryRdMember
Accumulated Depreciation 2,533us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNewHallsFerryRdMember
St. Louis / Airport [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 785us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisAirportMember
Initial Cost, Buildings & Improvements 1,833us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisAirportMember
Costs Subsequent to Acquisition 434us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisAirportMember
Gross Carrying Amount, Land 785us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisAirportMember
Gross Carrying Amount, Buildings 2,267us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisAirportMember
Gross Carrying Amount, Total 3,052us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisAirportMember
Accumulated Depreciation 1,577us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisAirportMember
St. Louis / S. Third St '99 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,096us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisSouthThirdStreetNinetyNineMember
Initial Cost, Buildings & Improvements 2,557us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisSouthThirdStreetNinetyNineMember
Costs Subsequent to Acquisition 320us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisSouthThirdStreetNinetyNineMember
Gross Carrying Amount, Land 1,096us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisSouthThirdStreetNinetyNineMember
Gross Carrying Amount, Buildings 2,877us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisSouthThirdStreetNinetyNineMember
Gross Carrying Amount, Total 3,973us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisSouthThirdStreetNinetyNineMember
Accumulated Depreciation 1,909us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisSouthThirdStreetNinetyNineMember
Kansas City / E. 47th St. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 610us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityEFortySeventhStMember
Initial Cost, Buildings & Improvements 1,424us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityEFortySeventhStMember
Costs Subsequent to Acquisition 502us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityEFortySeventhStMember
Gross Carrying Amount, Land 610us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityEFortySeventhStMember
Gross Carrying Amount, Buildings 1,926us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityEFortySeventhStMember
Gross Carrying Amount, Total 2,536us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityEFortySeventhStMember
Accumulated Depreciation 1,329us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityEFortySeventhStMember
Kansas City /E. 67th Terrace [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,136us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityESixtySeventhTerraceMember
Initial Cost, Buildings & Improvements 2,643us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityESixtySeventhTerraceMember
Costs Subsequent to Acquisition 533us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityESixtySeventhTerraceMember
Gross Carrying Amount, Land 1,134us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityESixtySeventhTerraceMember
Gross Carrying Amount, Buildings 3,178us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityESixtySeventhTerraceMember
Gross Carrying Amount, Total 4,312us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityESixtySeventhTerraceMember
Accumulated Depreciation 2,174us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityESixtySeventhTerraceMember
Kansas City / James A. Reed Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 749us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityJamesReedRdMember
Initial Cost, Buildings & Improvements 1,748us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityJamesReedRdMember
Costs Subsequent to Acquisition 294us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityJamesReedRdMember
Gross Carrying Amount, Land 749us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityJamesReedRdMember
Gross Carrying Amount, Buildings 2,042us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityJamesReedRdMember
Gross Carrying Amount, Total 2,791us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityJamesReedRdMember
Accumulated Depreciation 1,385us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityJamesReedRdMember
Independence / 291 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 871us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndependenceTwoNineOneMember
Initial Cost, Buildings & Improvements 2,032us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndependenceTwoNineOneMember
Costs Subsequent to Acquisition 373us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndependenceTwoNineOneMember
Gross Carrying Amount, Land 871us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndependenceTwoNineOneMember
Gross Carrying Amount, Buildings 2,405us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndependenceTwoNineOneMember
Gross Carrying Amount, Total 3,276us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndependenceTwoNineOneMember
Accumulated Depreciation 1,620us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_IndependenceTwoNineOneMember
Raytown / Woodson Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 915us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaytownWoodsonRdMember
Initial Cost, Buildings & Improvements 2,134us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaytownWoodsonRdMember
Costs Subsequent to Acquisition 314us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaytownWoodsonRdMember
Gross Carrying Amount, Land 914us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaytownWoodsonRdMember
Gross Carrying Amount, Buildings 2,449us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaytownWoodsonRdMember
Gross Carrying Amount, Total 3,363us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaytownWoodsonRdMember
Accumulated Depreciation 1,643us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaytownWoodsonRdMember
Kansas City / 34th Main Street [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 114us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityThirtyFourthMainStreetMember
Initial Cost, Buildings & Improvements 2,599us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityThirtyFourthMainStreetMember
Costs Subsequent to Acquisition 1,300us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityThirtyFourthMainStreetMember
Gross Carrying Amount, Land 114us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityThirtyFourthMainStreetMember
Gross Carrying Amount, Buildings 3,899us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityThirtyFourthMainStreetMember
Gross Carrying Amount, Total 4,013us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityThirtyFourthMainStreetMember
Accumulated Depreciation 2,735us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityThirtyFourthMainStreetMember
Columbia / River Dr [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 671us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaRiverDrMember
Initial Cost, Buildings & Improvements 1,566us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaRiverDrMember
Costs Subsequent to Acquisition 454us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaRiverDrMember
Gross Carrying Amount, Land 671us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaRiverDrMember
Gross Carrying Amount, Buildings 2,020us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaRiverDrMember
Gross Carrying Amount, Total 2,691us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaRiverDrMember
Accumulated Depreciation 1,394us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaRiverDrMember
Columbia / Buckner Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 714us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaBucknerRdMember
Initial Cost, Buildings & Improvements 1,665us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaBucknerRdMember
Costs Subsequent to Acquisition 560us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaBucknerRdMember
Gross Carrying Amount, Land 713us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaBucknerRdMember
Gross Carrying Amount, Buildings 2,226us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaBucknerRdMember
Gross Carrying Amount, Total 2,939us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaBucknerRdMember
Accumulated Depreciation 1,576us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaBucknerRdMember
Columbia / Decker Park Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 605us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaDeckerParkRdMember
Initial Cost, Buildings & Improvements 1,412us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaDeckerParkRdMember
Costs Subsequent to Acquisition 231us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaDeckerParkRdMember
Gross Carrying Amount, Land 605us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaDeckerParkRdMember
Gross Carrying Amount, Buildings 1,643us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaDeckerParkRdMember
Gross Carrying Amount, Total 2,248us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaDeckerParkRdMember
Accumulated Depreciation 1,094us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaDeckerParkRdMember
Columbia / Rosewood Dr [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 777us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaRosewoodDrMember
Initial Cost, Buildings & Improvements 1,814us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaRosewoodDrMember
Costs Subsequent to Acquisition 363us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaRosewoodDrMember
Gross Carrying Amount, Land 777us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaRosewoodDrMember
Gross Carrying Amount, Buildings 2,177us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaRosewoodDrMember
Gross Carrying Amount, Total 2,954us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaRosewoodDrMember
Accumulated Depreciation 1,442us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaRosewoodDrMember
W. Columbia / Orchard Dr. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 272us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WColumbiaOrchardDrMember
Initial Cost, Buildings & Improvements 634us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WColumbiaOrchardDrMember
Costs Subsequent to Acquisition 336us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WColumbiaOrchardDrMember
Gross Carrying Amount, Land 272us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WColumbiaOrchardDrMember
Gross Carrying Amount, Buildings 970us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WColumbiaOrchardDrMember
Gross Carrying Amount, Total 1,242us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WColumbiaOrchardDrMember
Accumulated Depreciation 712us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WColumbiaOrchardDrMember
W. Columbia / Airport Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 493us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WColumbiaAirportBlvdMember
Initial Cost, Buildings & Improvements 1,151us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WColumbiaAirportBlvdMember
Costs Subsequent to Acquisition 333us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WColumbiaAirportBlvdMember
Gross Carrying Amount, Land 493us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WColumbiaAirportBlvdMember
Gross Carrying Amount, Buildings 1,484us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WColumbiaAirportBlvdMember
Gross Carrying Amount, Total 1,977us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WColumbiaAirportBlvdMember
Accumulated Depreciation 1,035us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WColumbiaAirportBlvdMember
Greenville / Whitehorse Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 882us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvilleWhitehorseRdMember
Initial Cost, Buildings & Improvements 2,058us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvilleWhitehorseRdMember
Costs Subsequent to Acquisition 377us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvilleWhitehorseRdMember
Gross Carrying Amount, Land 882us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvilleWhitehorseRdMember
Gross Carrying Amount, Buildings 2,435us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvilleWhitehorseRdMember
Gross Carrying Amount, Total 3,317us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvilleWhitehorseRdMember
Accumulated Depreciation 1,618us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvilleWhitehorseRdMember
Greenville / Woods Lake Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 364us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvilleWoodsLakeRdMember
Initial Cost, Buildings & Improvements 849us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvilleWoodsLakeRdMember
Costs Subsequent to Acquisition 250us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvilleWoodsLakeRdMember
Gross Carrying Amount, Land 364us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvilleWoodsLakeRdMember
Gross Carrying Amount, Buildings 1,099us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvilleWoodsLakeRdMember
Gross Carrying Amount, Total 1,463us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvilleWoodsLakeRdMember
Accumulated Depreciation 769us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvilleWoodsLakeRdMember
Mauldin / N. Main Street [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 571us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MauldinNMainStreetMember
Initial Cost, Buildings & Improvements 1,333us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MauldinNMainStreetMember
Costs Subsequent to Acquisition 356us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MauldinNMainStreetMember
Gross Carrying Amount, Land 571us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MauldinNMainStreetMember
Gross Carrying Amount, Buildings 1,689us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MauldinNMainStreetMember
Gross Carrying Amount, Total 2,260us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MauldinNMainStreetMember
Accumulated Depreciation 1,180us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MauldinNMainStreetMember
Simpsonville / Grand View Dr [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 582us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SimpsonvilleGrandViewDrMember
Initial Cost, Buildings & Improvements 1,358us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SimpsonvilleGrandViewDrMember
Costs Subsequent to Acquisition 272us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SimpsonvilleGrandViewDrMember
Gross Carrying Amount, Land 574us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SimpsonvilleGrandViewDrMember
Gross Carrying Amount, Buildings 1,638us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SimpsonvilleGrandViewDrMember
Gross Carrying Amount, Total 2,212us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SimpsonvilleGrandViewDrMember
Accumulated Depreciation 1,078us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SimpsonvilleGrandViewDrMember
Taylors / Wade Hampton Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 650us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TaylorsWadeHamptonBlvdMember
Initial Cost, Buildings & Improvements 1,517us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TaylorsWadeHamptonBlvdMember
Costs Subsequent to Acquisition 331us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TaylorsWadeHamptonBlvdMember
Gross Carrying Amount, Land 650us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TaylorsWadeHamptonBlvdMember
Gross Carrying Amount, Buildings 1,848us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TaylorsWadeHamptonBlvdMember
Gross Carrying Amount, Total 2,498us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TaylorsWadeHamptonBlvdMember
Accumulated Depreciation 1,237us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TaylorsWadeHamptonBlvdMember
Charleston/Ashley Phosphate [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 839us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonAshleyPhosphateMember
Initial Cost, Buildings & Improvements 1,950us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonAshleyPhosphateMember
Costs Subsequent to Acquisition 698us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonAshleyPhosphateMember
Gross Carrying Amount, Land 823us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonAshleyPhosphateMember
Gross Carrying Amount, Buildings 2,664us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonAshleyPhosphateMember
Gross Carrying Amount, Total 3,487us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonAshleyPhosphateMember
Accumulated Depreciation 1,800us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonAshleyPhosphateMember
N. Charleston / Dorchester Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 380us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NCharlestonDorchesterRdMember
Initial Cost, Buildings & Improvements 886us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NCharlestonDorchesterRdMember
Costs Subsequent to Acquisition 315us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NCharlestonDorchesterRdMember
Gross Carrying Amount, Land 379us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NCharlestonDorchesterRdMember
Gross Carrying Amount, Buildings 1,202us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NCharlestonDorchesterRdMember
Gross Carrying Amount, Total 1,581us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NCharlestonDorchesterRdMember
Accumulated Depreciation 842us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NCharlestonDorchesterRdMember
N. Charleston / Dorchester [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 487us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NCharlestonDorchesterMember
Initial Cost, Buildings & Improvements 1,137us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NCharlestonDorchesterMember
Costs Subsequent to Acquisition 403us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NCharlestonDorchesterMember
Gross Carrying Amount, Land 487us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NCharlestonDorchesterMember
Gross Carrying Amount, Buildings 1,540us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NCharlestonDorchesterMember
Gross Carrying Amount, Total 2,027us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NCharlestonDorchesterMember
Accumulated Depreciation 1,062us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NCharlestonDorchesterMember
Charleston / Sam Rittenberg Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 555us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonSamRittenbergBlvdMember
Initial Cost, Buildings & Improvements 1,296us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonSamRittenbergBlvdMember
Costs Subsequent to Acquisition 275us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonSamRittenbergBlvdMember
Gross Carrying Amount, Land 555us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonSamRittenbergBlvdMember
Gross Carrying Amount, Buildings 1,571us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonSamRittenbergBlvdMember
Gross Carrying Amount, Total 2,126us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonSamRittenbergBlvdMember
Accumulated Depreciation 1,067us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonSamRittenbergBlvdMember
Hilton Head / Office Park Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,279us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiltonHeadOfficeParkRdMember
Initial Cost, Buildings & Improvements 2,985us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiltonHeadOfficeParkRdMember
Costs Subsequent to Acquisition 326us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiltonHeadOfficeParkRdMember
Gross Carrying Amount, Land 1,279us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiltonHeadOfficeParkRdMember
Gross Carrying Amount, Buildings 3,311us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiltonHeadOfficeParkRdMember
Gross Carrying Amount, Total 4,590us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiltonHeadOfficeParkRdMember
Accumulated Depreciation 2,185us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiltonHeadOfficeParkRdMember
Columbia / Plumbers Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 368us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaPlumbersRdMember
Initial Cost, Buildings & Improvements 858us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaPlumbersRdMember
Costs Subsequent to Acquisition 362us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaPlumbersRdMember
Gross Carrying Amount, Land 368us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaPlumbersRdMember
Gross Carrying Amount, Buildings 1,220us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaPlumbersRdMember
Gross Carrying Amount, Total 1,588us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaPlumbersRdMember
Accumulated Depreciation 859us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaPlumbersRdMember
Greenville / Pineknoll Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 927us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvillePineknollRdMember
Initial Cost, Buildings & Improvements 2,163us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvillePineknollRdMember
Costs Subsequent to Acquisition 433us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvillePineknollRdMember
Gross Carrying Amount, Land 927us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvillePineknollRdMember
Gross Carrying Amount, Buildings 2,596us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvillePineknollRdMember
Gross Carrying Amount, Total 3,523us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvillePineknollRdMember
Accumulated Depreciation 1,710us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreenvillePineknollRdMember
Hilton Head / Yacht Cove Dr [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,182us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiltonHeadYachtCoveDrMember
Initial Cost, Buildings & Improvements 2,753us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiltonHeadYachtCoveDrMember
Costs Subsequent to Acquisition 181us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiltonHeadYachtCoveDrMember
Gross Carrying Amount, Land 826us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiltonHeadYachtCoveDrMember
Gross Carrying Amount, Buildings 3,290us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiltonHeadYachtCoveDrMember
Gross Carrying Amount, Total 4,116us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiltonHeadYachtCoveDrMember
Accumulated Depreciation 2,227us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HiltonHeadYachtCoveDrMember
Spartanburg / Chesnee Hwy [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 533us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpartanburgChesneeHwyMember
Initial Cost, Buildings & Improvements 1,244us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpartanburgChesneeHwyMember
Costs Subsequent to Acquisition 867us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpartanburgChesneeHwyMember
Gross Carrying Amount, Land 480us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpartanburgChesneeHwyMember
Gross Carrying Amount, Buildings 2,164us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpartanburgChesneeHwyMember
Gross Carrying Amount, Total 2,644us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpartanburgChesneeHwyMember
Accumulated Depreciation 1,610us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpartanburgChesneeHwyMember
Charleston / Ashley River Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,114us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonAshleyRiverRdMember
Initial Cost, Buildings & Improvements 2,581us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonAshleyRiverRdMember
Costs Subsequent to Acquisition 268us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonAshleyRiverRdMember
Gross Carrying Amount, Land 1,108us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonAshleyRiverRdMember
Gross Carrying Amount, Buildings 2,855us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonAshleyRiverRdMember
Gross Carrying Amount, Total 3,963us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonAshleyRiverRdMember
Accumulated Depreciation 1,921us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlestonAshleyRiverRdMember
Columbia / Broad River [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,463us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaBroadRiverMember
Initial Cost, Buildings & Improvements 3,413us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaBroadRiverMember
Costs Subsequent to Acquisition 608us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaBroadRiverMember
Gross Carrying Amount, Land 1,463us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaBroadRiverMember
Gross Carrying Amount, Buildings 4,021us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaBroadRiverMember
Gross Carrying Amount, Total 5,484us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaBroadRiverMember
Accumulated Depreciation 2,725us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbiaBroadRiverMember
Charlotte / East Wt Harris Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 736us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteEastWtHarrisBlvdMember
Initial Cost, Buildings & Improvements 1,718us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteEastWtHarrisBlvdMember
Costs Subsequent to Acquisition 460us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteEastWtHarrisBlvdMember
Gross Carrying Amount, Land 736us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteEastWtHarrisBlvdMember
Gross Carrying Amount, Buildings 2,178us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteEastWtHarrisBlvdMember
Gross Carrying Amount, Total 2,914us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteEastWtHarrisBlvdMember
Accumulated Depreciation 1,458us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteEastWtHarrisBlvdMember
Charlotte / North Tryon St. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 708us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteNorthTryonStMember
Initial Cost, Buildings & Improvements 1,653us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteNorthTryonStMember
Costs Subsequent to Acquisition 837us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteNorthTryonStMember
Gross Carrying Amount, Land 708us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteNorthTryonStMember
Gross Carrying Amount, Buildings 2,490us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteNorthTryonStMember
Gross Carrying Amount, Total 3,198us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteNorthTryonStMember
Accumulated Depreciation 1,776us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteNorthTryonStMember
Charlotte / South Blvd. '99 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 641us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteSouthBoulevardNinetyNineMember
Initial Cost, Buildings & Improvements 1,496us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteSouthBoulevardNinetyNineMember
Costs Subsequent to Acquisition 375us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteSouthBoulevardNinetyNineMember
Gross Carrying Amount, Land 641us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteSouthBoulevardNinetyNineMember
Gross Carrying Amount, Buildings 1,871us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteSouthBoulevardNinetyNineMember
Gross Carrying Amount, Total 2,512us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteSouthBoulevardNinetyNineMember
Accumulated Depreciation 1,268us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteSouthBoulevardNinetyNineMember
Kannapolis / Oregon St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 463us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KannapolisOregonStMember
Initial Cost, Buildings & Improvements 1,081us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KannapolisOregonStMember
Costs Subsequent to Acquisition 347us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KannapolisOregonStMember
Gross Carrying Amount, Land 463us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KannapolisOregonStMember
Gross Carrying Amount, Buildings 1,428us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KannapolisOregonStMember
Gross Carrying Amount, Total 1,891us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KannapolisOregonStMember
Accumulated Depreciation 966us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KannapolisOregonStMember
Durham / E. Club Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 947us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamEClubBlvdMember
Initial Cost, Buildings & Improvements 2,209us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamEClubBlvdMember
Costs Subsequent to Acquisition 335us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamEClubBlvdMember
Gross Carrying Amount, Land 947us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamEClubBlvdMember
Gross Carrying Amount, Buildings 2,544us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamEClubBlvdMember
Gross Carrying Amount, Total 3,491us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamEClubBlvdMember
Accumulated Depreciation 1,677us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamEClubBlvdMember
Durham / N. Duke St. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 769us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamNDukeStMember
Initial Cost, Buildings & Improvements 1,794us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamNDukeStMember
Costs Subsequent to Acquisition 322us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamNDukeStMember
Gross Carrying Amount, Land 769us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamNDukeStMember
Gross Carrying Amount, Buildings 2,116us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamNDukeStMember
Gross Carrying Amount, Total 2,885us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamNDukeStMember
Accumulated Depreciation 1,387us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamNDukeStMember
Raleigh / Maitland Dr [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 679us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighMaitlandDrMember
Initial Cost, Buildings & Improvements 1,585us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighMaitlandDrMember
Costs Subsequent to Acquisition 414us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighMaitlandDrMember
Gross Carrying Amount, Land 679us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighMaitlandDrMember
Gross Carrying Amount, Buildings 1,999us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighMaitlandDrMember
Gross Carrying Amount, Total 2,678us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighMaitlandDrMember
Accumulated Depreciation 1,396us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighMaitlandDrMember
Greensboro / O'henry Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 577us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreensboroOHenryBlvdMember
Initial Cost, Buildings & Improvements 1,345us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreensboroOHenryBlvdMember
Costs Subsequent to Acquisition 585us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreensboroOHenryBlvdMember
Gross Carrying Amount, Land 577us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreensboroOHenryBlvdMember
Gross Carrying Amount, Buildings 1,930us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreensboroOHenryBlvdMember
Gross Carrying Amount, Total 2,507us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreensboroOHenryBlvdMember
Accumulated Depreciation 1,390us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreensboroOHenryBlvdMember
Gastonia / S. York Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 467us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GastoniaSYorkRdMember
Initial Cost, Buildings & Improvements 1,089us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GastoniaSYorkRdMember
Costs Subsequent to Acquisition 388us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GastoniaSYorkRdMember
Gross Carrying Amount, Land 466us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GastoniaSYorkRdMember
Gross Carrying Amount, Buildings 1,478us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GastoniaSYorkRdMember
Gross Carrying Amount, Total 1,944us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GastoniaSYorkRdMember
Accumulated Depreciation 1,020us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GastoniaSYorkRdMember
Durham / Kangaroo Dr. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,102us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamKangarooDrMember
Initial Cost, Buildings & Improvements 2,572us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamKangarooDrMember
Costs Subsequent to Acquisition 826us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamKangarooDrMember
Gross Carrying Amount, Land 1,102us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamKangarooDrMember
Gross Carrying Amount, Buildings 3,398us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamKangarooDrMember
Gross Carrying Amount, Total 4,500us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamKangarooDrMember
Accumulated Depreciation 2,291us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DurhamKangarooDrMember
Pensacola / Brent Lane [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 402us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PensacolaBrentLaneMember
Initial Cost, Buildings & Improvements 938us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PensacolaBrentLaneMember
Costs Subsequent to Acquisition 91us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PensacolaBrentLaneMember
Gross Carrying Amount, Land 229us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PensacolaBrentLaneMember
Gross Carrying Amount, Buildings 1,202us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PensacolaBrentLaneMember
Gross Carrying Amount, Total 1,431us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PensacolaBrentLaneMember
Accumulated Depreciation 885us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PensacolaBrentLaneMember
Pensacola / Creighton Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 454us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PensacolaCreightonRoadMember
Initial Cost, Buildings & Improvements 1,060us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PensacolaCreightonRoadMember
Costs Subsequent to Acquisition 325us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PensacolaCreightonRoadMember
Gross Carrying Amount, Land 454us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PensacolaCreightonRoadMember
Gross Carrying Amount, Buildings 1,385us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PensacolaCreightonRoadMember
Gross Carrying Amount, Total 1,839us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PensacolaCreightonRoadMember
Accumulated Depreciation 1,063us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PensacolaCreightonRoadMember
Jacksonville / Park Avenue [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 905us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleParkAvenueMember
Initial Cost, Buildings & Improvements 2,113us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleParkAvenueMember
Costs Subsequent to Acquisition 396us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleParkAvenueMember
Gross Carrying Amount, Land 905us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleParkAvenueMember
Gross Carrying Amount, Buildings 2,509us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleParkAvenueMember
Gross Carrying Amount, Total 3,414us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleParkAvenueMember
Accumulated Depreciation 1,694us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleParkAvenueMember
Jacksonville/Phillips Hwy. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 665us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvillePhillipsHwyMember
Initial Cost, Buildings & Improvements 1,545us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvillePhillipsHwyMember
Costs Subsequent to Acquisition 799us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvillePhillipsHwyMember
Gross Carrying Amount, Land 663us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvillePhillipsHwyMember
Gross Carrying Amount, Buildings 2,346us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvillePhillipsHwyMember
Gross Carrying Amount, Total 3,009us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvillePhillipsHwyMember
Accumulated Depreciation 1,697us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvillePhillipsHwyMember
Clearwater / Highland Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 724us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ClearwaterHighlandAveMember
Initial Cost, Buildings & Improvements 1,690us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ClearwaterHighlandAveMember
Costs Subsequent to Acquisition 563us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ClearwaterHighlandAveMember
Gross Carrying Amount, Land 724us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ClearwaterHighlandAveMember
Gross Carrying Amount, Buildings 2,253us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ClearwaterHighlandAveMember
Gross Carrying Amount, Total 2,977us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ClearwaterHighlandAveMember
Accumulated Depreciation 1,493us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ClearwaterHighlandAveMember
Tarpon Springs / Us Highway 19 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 892us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TarponSpringsUsHighwayOneNineMember
Initial Cost, Buildings & Improvements 2,081us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TarponSpringsUsHighwayOneNineMember
Costs Subsequent to Acquisition 583us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TarponSpringsUsHighwayOneNineMember
Gross Carrying Amount, Land 892us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TarponSpringsUsHighwayOneNineMember
Gross Carrying Amount, Buildings 2,664us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TarponSpringsUsHighwayOneNineMember
Gross Carrying Amount, Total 3,556us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TarponSpringsUsHighwayOneNineMember
Accumulated Depreciation 1,833us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TarponSpringsUsHighwayOneNineMember
Orlando /S. Orange Blossom Trail [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,229us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSOrangeBlossomTrailMember
Initial Cost, Buildings & Improvements 2,867us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSOrangeBlossomTrailMember
Costs Subsequent to Acquisition 509us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSOrangeBlossomTrailMember
Gross Carrying Amount, Land 1,228us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSOrangeBlossomTrailMember
Gross Carrying Amount, Buildings 3,377us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSOrangeBlossomTrailMember
Gross Carrying Amount, Total 4,605us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSOrangeBlossomTrailMember
Accumulated Depreciation 2,257us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSOrangeBlossomTrailMember
Casselberry Ii [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,160us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CasselberryIiMember
Initial Cost, Buildings & Improvements 2,708us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CasselberryIiMember
Costs Subsequent to Acquisition 432us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CasselberryIiMember
Gross Carrying Amount, Land 1,160us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CasselberryIiMember
Gross Carrying Amount, Buildings 3,140us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CasselberryIiMember
Gross Carrying Amount, Total 4,300us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CasselberryIiMember
Accumulated Depreciation 2,114us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CasselberryIiMember
Miami / Nw 14th Street [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,739us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiNwFourteenthStreetMember
Initial Cost, Buildings & Improvements 4,058us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiNwFourteenthStreetMember
Costs Subsequent to Acquisition 3,818us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiNwFourteenthStreetMember
Gross Carrying Amount, Land 1,739us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiNwFourteenthStreetMember
Gross Carrying Amount, Buildings 7,876us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiNwFourteenthStreetMember
Gross Carrying Amount, Total 9,615us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiNwFourteenthStreetMember
Accumulated Depreciation 3,007us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiNwFourteenthStreetMember
Tarpon Springs / Highway 19 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,179us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TarponSpringsHighwayOneNineMember
Initial Cost, Buildings & Improvements 2,751us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TarponSpringsHighwayOneNineMember
Costs Subsequent to Acquisition 520us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TarponSpringsHighwayOneNineMember
Gross Carrying Amount, Land 1,179us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TarponSpringsHighwayOneNineMember
Gross Carrying Amount, Buildings 3,271us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TarponSpringsHighwayOneNineMember
Gross Carrying Amount, Total 4,450us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TarponSpringsHighwayOneNineMember
Accumulated Depreciation 2,265us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TarponSpringsHighwayOneNineMember
Ft. Myers / Tamiami Trail South [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 834us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtMyersTamiamiTrailSouthMember
Initial Cost, Buildings & Improvements 1,945us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtMyersTamiamiTrailSouthMember
Costs Subsequent to Acquisition (125)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtMyersTamiamiTrailSouthMember
Gross Carrying Amount, Land 834us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtMyersTamiamiTrailSouthMember
Gross Carrying Amount, Buildings 1,820us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtMyersTamiamiTrailSouthMember
Gross Carrying Amount, Total 2,654us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtMyersTamiamiTrailSouthMember
Accumulated Depreciation 1,334us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtMyersTamiamiTrailSouthMember
Jacksonville / Ft. Caroline Rd. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,037us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleFtCarolineRdMember
Initial Cost, Buildings & Improvements 2,420us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleFtCarolineRdMember
Costs Subsequent to Acquisition 540us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleFtCarolineRdMember
Gross Carrying Amount, Land 1,037us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleFtCarolineRdMember
Gross Carrying Amount, Buildings 2,960us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleFtCarolineRdMember
Gross Carrying Amount, Total 3,997us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleFtCarolineRdMember
Accumulated Depreciation 2,007us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleFtCarolineRdMember
Orlando / South Semoran [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 565us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSouthSemoranMember
Initial Cost, Buildings & Improvements 1,319us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSouthSemoranMember
Costs Subsequent to Acquisition 181us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSouthSemoranMember
Gross Carrying Amount, Land 565us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSouthSemoranMember
Gross Carrying Amount, Buildings 1,500us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSouthSemoranMember
Gross Carrying Amount, Total 2,065us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSouthSemoranMember
Accumulated Depreciation 1,025us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoSouthSemoranMember
Jacksonville / Southside Blvd. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,278us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleSouthsideBlvdMember
Initial Cost, Buildings & Improvements 2,982us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleSouthsideBlvdMember
Costs Subsequent to Acquisition 663us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleSouthsideBlvdMember
Gross Carrying Amount, Land 1,278us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleSouthsideBlvdMember
Gross Carrying Amount, Buildings 3,645us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleSouthsideBlvdMember
Gross Carrying Amount, Total 4,923us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleSouthsideBlvdMember
Accumulated Depreciation 2,484us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleSouthsideBlvdMember
Miami / Nw 7th Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 783us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiNwSeventhAveMember
Initial Cost, Buildings & Improvements 1,827us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiNwSeventhAveMember
Costs Subsequent to Acquisition 4,866us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiNwSeventhAveMember
Gross Carrying Amount, Land 785us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiNwSeventhAveMember
Gross Carrying Amount, Buildings 6,691us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiNwSeventhAveMember
Gross Carrying Amount, Total 7,476us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiNwSeventhAveMember
Accumulated Depreciation 3,376us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiNwSeventhAveMember
Vero Beach / Us Hwy 1 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 678us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_VeroBeachUsHwyOneMember
Initial Cost, Buildings & Improvements 1,583us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_VeroBeachUsHwyOneMember
Costs Subsequent to Acquisition 292us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_VeroBeachUsHwyOneMember
Gross Carrying Amount, Land 678us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_VeroBeachUsHwyOneMember
Gross Carrying Amount, Buildings 1,875us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_VeroBeachUsHwyOneMember
Gross Carrying Amount, Total 2,553us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_VeroBeachUsHwyOneMember
Accumulated Depreciation 1,323us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_VeroBeachUsHwyOneMember
Ponte Vedra / Palm Valley Rd. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 745us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PonteVedraPalmValleyRdMember
Initial Cost, Buildings & Improvements 2,749us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PonteVedraPalmValleyRdMember
Costs Subsequent to Acquisition 928us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PonteVedraPalmValleyRdMember
Gross Carrying Amount, Land 745us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PonteVedraPalmValleyRdMember
Gross Carrying Amount, Buildings 3,677us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PonteVedraPalmValleyRdMember
Gross Carrying Amount, Total 4,422us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PonteVedraPalmValleyRdMember
Accumulated Depreciation 2,549us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PonteVedraPalmValleyRdMember
Miami Lakes / Nw 153rd St. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 425us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiLakesNwOneFiftyThirdStMember
Initial Cost, Buildings & Improvements 992us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiLakesNwOneFiftyThirdStMember
Costs Subsequent to Acquisition 321us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiLakesNwOneFiftyThirdStMember
Gross Carrying Amount, Land 425us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiLakesNwOneFiftyThirdStMember
Gross Carrying Amount, Buildings 1,313us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiLakesNwOneFiftyThirdStMember
Gross Carrying Amount, Total 1,738us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiLakesNwOneFiftyThirdStMember
Accumulated Depreciation 930us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiLakesNwOneFiftyThirdStMember
Deerfield Beach / Sw 10th St. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,844us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DeerfieldBeachSwTenthStMember
Initial Cost, Buildings & Improvements 4,302us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DeerfieldBeachSwTenthStMember
Costs Subsequent to Acquisition 268us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DeerfieldBeachSwTenthStMember
Gross Carrying Amount, Land 1,843us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DeerfieldBeachSwTenthStMember
Gross Carrying Amount, Buildings 4,571us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DeerfieldBeachSwTenthStMember
Gross Carrying Amount, Total 6,414us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DeerfieldBeachSwTenthStMember
Accumulated Depreciation 2,960us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DeerfieldBeachSwTenthStMember
Apopka / S. Orange Blossom [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 307us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ApopkaSOrangeBlossomMember
Initial Cost, Buildings & Improvements 717us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ApopkaSOrangeBlossomMember
Costs Subsequent to Acquisition 445us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ApopkaSOrangeBlossomMember
Gross Carrying Amount, Land 307us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ApopkaSOrangeBlossomMember
Gross Carrying Amount, Buildings 1,162us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ApopkaSOrangeBlossomMember
Gross Carrying Amount, Total 1,469us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ApopkaSOrangeBlossomMember
Accumulated Depreciation 842us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ApopkaSOrangeBlossomMember
Davie / University [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 313us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DavieUniversityMember
Initial Cost, Buildings & Improvements 4,379us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DavieUniversityMember
Costs Subsequent to Acquisition 812us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DavieUniversityMember
Gross Carrying Amount, Land 313us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DavieUniversityMember
Gross Carrying Amount, Buildings 5,191us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DavieUniversityMember
Gross Carrying Amount, Total 5,504us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DavieUniversityMember
Accumulated Depreciation 3,512us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DavieUniversityMember
Arlington / Division [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 998us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArlingtonDivisionMember
Initial Cost, Buildings & Improvements 2,328us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArlingtonDivisionMember
Costs Subsequent to Acquisition 398us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArlingtonDivisionMember
Gross Carrying Amount, Land 997us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArlingtonDivisionMember
Gross Carrying Amount, Buildings 2,727us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArlingtonDivisionMember
Gross Carrying Amount, Total 3,724us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArlingtonDivisionMember
Accumulated Depreciation 1,786us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArlingtonDivisionMember
Duncanville/S.Cedar Ridge [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,477us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DuncanvilleSCedarRidgeMember
Initial Cost, Buildings & Improvements 3,447us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DuncanvilleSCedarRidgeMember
Costs Subsequent to Acquisition 680us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DuncanvilleSCedarRidgeMember
Gross Carrying Amount, Land 1,477us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DuncanvilleSCedarRidgeMember
Gross Carrying Amount, Buildings 4,127us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DuncanvilleSCedarRidgeMember
Gross Carrying Amount, Total 5,604us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DuncanvilleSCedarRidgeMember
Accumulated Depreciation 2,759us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DuncanvilleSCedarRidgeMember
Carrollton / Trinity Mills West [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 530us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarrolltonTrinityMillsWestMember
Initial Cost, Buildings & Improvements 1,237us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarrolltonTrinityMillsWestMember
Costs Subsequent to Acquisition 206us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarrolltonTrinityMillsWestMember
Gross Carrying Amount, Land 530us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarrolltonTrinityMillsWestMember
Gross Carrying Amount, Buildings 1,443us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarrolltonTrinityMillsWestMember
Gross Carrying Amount, Total 1,973us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarrolltonTrinityMillsWestMember
Accumulated Depreciation 978us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarrolltonTrinityMillsWestMember
Houston / Wallisville Rd. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 744us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWallisvilleRdMember
Initial Cost, Buildings & Improvements 1,736us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWallisvilleRdMember
Costs Subsequent to Acquisition 313us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWallisvilleRdMember
Gross Carrying Amount, Land 744us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWallisvilleRdMember
Gross Carrying Amount, Buildings 2,049us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWallisvilleRdMember
Gross Carrying Amount, Total 2,793us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWallisvilleRdMember
Accumulated Depreciation 1,382us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWallisvilleRdMember
Houston / Fondren South [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 647us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFondrenSouthMember
Initial Cost, Buildings & Improvements 1,510us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFondrenSouthMember
Costs Subsequent to Acquisition 298us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFondrenSouthMember
Gross Carrying Amount, Land 647us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFondrenSouthMember
Gross Carrying Amount, Buildings 1,808us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFondrenSouthMember
Gross Carrying Amount, Total 2,455us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFondrenSouthMember
Accumulated Depreciation 1,225us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFondrenSouthMember
Houston / Addicks Satsuma [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 409us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonAddicksSatsumaMember
Initial Cost, Buildings & Improvements 954us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonAddicksSatsumaMember
Costs Subsequent to Acquisition 492us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonAddicksSatsumaMember
Gross Carrying Amount, Land 409us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonAddicksSatsumaMember
Gross Carrying Amount, Buildings 1,446us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonAddicksSatsumaMember
Gross Carrying Amount, Total 1,855us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonAddicksSatsumaMember
Accumulated Depreciation 1,026us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonAddicksSatsumaMember
Addison / Inwood Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,204us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AddisonInwoodRoadMember
Initial Cost, Buildings & Improvements 2,808us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AddisonInwoodRoadMember
Costs Subsequent to Acquisition 258us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AddisonInwoodRoadMember
Gross Carrying Amount, Land 1,203us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AddisonInwoodRoadMember
Gross Carrying Amount, Buildings 3,067us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AddisonInwoodRoadMember
Gross Carrying Amount, Total 4,270us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AddisonInwoodRoadMember
Accumulated Depreciation 2,021us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AddisonInwoodRoadMember
Garland / Jackson Drive [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 755us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandJacksonDriveMember
Initial Cost, Buildings & Improvements 1,761us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandJacksonDriveMember
Costs Subsequent to Acquisition 247us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandJacksonDriveMember
Gross Carrying Amount, Land 755us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandJacksonDriveMember
Gross Carrying Amount, Buildings 2,008us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandJacksonDriveMember
Gross Carrying Amount, Total 2,763us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandJacksonDriveMember
Accumulated Depreciation 1,316us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandJacksonDriveMember
Garland / Buckingham Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 492us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandBuckinghamRoadMember
Initial Cost, Buildings & Improvements 1,149us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandBuckinghamRoadMember
Costs Subsequent to Acquisition 235us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandBuckinghamRoadMember
Gross Carrying Amount, Land 492us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandBuckinghamRoadMember
Gross Carrying Amount, Buildings 1,384us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandBuckinghamRoadMember
Gross Carrying Amount, Total 1,876us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandBuckinghamRoadMember
Accumulated Depreciation 948us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GarlandBuckinghamRoadMember
Houston / South Main [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,461us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonSouthMainMember
Initial Cost, Buildings & Improvements 3,409us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonSouthMainMember
Costs Subsequent to Acquisition 579us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonSouthMainMember
Gross Carrying Amount, Land 1,461us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonSouthMainMember
Gross Carrying Amount, Buildings 3,988us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonSouthMainMember
Gross Carrying Amount, Total 5,449us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonSouthMainMember
Accumulated Depreciation 2,610us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonSouthMainMember
Plano / Parker Road-Avenue K [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,517us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PlanoParkerRoadAvenueKMember
Initial Cost, Buildings & Improvements 3,539us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PlanoParkerRoadAvenueKMember
Costs Subsequent to Acquisition 403us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PlanoParkerRoadAvenueKMember
Gross Carrying Amount, Land 1,516us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PlanoParkerRoadAvenueKMember
Gross Carrying Amount, Buildings 3,943us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PlanoParkerRoadAvenueKMember
Gross Carrying Amount, Total 5,459us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PlanoParkerRoadAvenueKMember
Accumulated Depreciation 2,603us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PlanoParkerRoadAvenueKMember
Houston / Bingle Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 576us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonBingleRoadMember
Initial Cost, Buildings & Improvements 1,345us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonBingleRoadMember
Costs Subsequent to Acquisition 535us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonBingleRoadMember
Gross Carrying Amount, Land 576us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonBingleRoadMember
Gross Carrying Amount, Buildings 1,880us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonBingleRoadMember
Gross Carrying Amount, Total 2,456us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonBingleRoadMember
Accumulated Depreciation 1,322us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonBingleRoadMember
Houston / Mangum Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 737us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMangumRoadMember
Initial Cost, Buildings & Improvements 1,719us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMangumRoadMember
Costs Subsequent to Acquisition 554us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMangumRoadMember
Gross Carrying Amount, Land 737us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMangumRoadMember
Gross Carrying Amount, Buildings 2,273us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMangumRoadMember
Gross Carrying Amount, Total 3,010us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMangumRoadMember
Accumulated Depreciation 1,578us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMangumRoadMember
Houston / Hayes Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 916us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHayesRoadMember
Initial Cost, Buildings & Improvements 2,138us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHayesRoadMember
Costs Subsequent to Acquisition 378us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHayesRoadMember
Gross Carrying Amount, Land 916us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHayesRoadMember
Gross Carrying Amount, Buildings 2,516us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHayesRoadMember
Gross Carrying Amount, Total 3,432us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHayesRoadMember
Accumulated Depreciation 1,657us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHayesRoadMember
Katy / Dominion Drive [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 995us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KatyDominionDriveMember
Initial Cost, Buildings & Improvements 2,321us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KatyDominionDriveMember
Costs Subsequent to Acquisition 200us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KatyDominionDriveMember
Gross Carrying Amount, Land 994us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KatyDominionDriveMember
Gross Carrying Amount, Buildings 2,522us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KatyDominionDriveMember
Gross Carrying Amount, Total 3,516us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KatyDominionDriveMember
Accumulated Depreciation 1,636us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KatyDominionDriveMember
Houston / Fm 1960 West [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 513us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFmOneNineSixZeroWestMember
Initial Cost, Buildings & Improvements 1,198us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFmOneNineSixZeroWestMember
Costs Subsequent to Acquisition 423us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFmOneNineSixZeroWestMember
Gross Carrying Amount, Land 513us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFmOneNineSixZeroWestMember
Gross Carrying Amount, Buildings 1,621us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFmOneNineSixZeroWestMember
Gross Carrying Amount, Total 2,134us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFmOneNineSixZeroWestMember
Accumulated Depreciation 1,163us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonFmOneNineSixZeroWestMember
Webster / Fm 528 Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 756us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WebsterFmFiveTwoEightRoadMember
Initial Cost, Buildings & Improvements 1,764us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WebsterFmFiveTwoEightRoadMember
Costs Subsequent to Acquisition 300us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WebsterFmFiveTwoEightRoadMember
Gross Carrying Amount, Land 756us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WebsterFmFiveTwoEightRoadMember
Gross Carrying Amount, Buildings 2,064us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WebsterFmFiveTwoEightRoadMember
Gross Carrying Amount, Total 2,820us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WebsterFmFiveTwoEightRoadMember
Accumulated Depreciation 1,335us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WebsterFmFiveTwoEightRoadMember
Houston / Loch Katrine Lane [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 580us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonLochKatrineLaneMember
Initial Cost, Buildings & Improvements 1,352us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonLochKatrineLaneMember
Costs Subsequent to Acquisition 383us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonLochKatrineLaneMember
Gross Carrying Amount, Land 579us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonLochKatrineLaneMember
Gross Carrying Amount, Buildings 1,736us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonLochKatrineLaneMember
Gross Carrying Amount, Total 2,315us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonLochKatrineLaneMember
Accumulated Depreciation 1,177us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonLochKatrineLaneMember
Houston / Milwee St. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 779us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMilweeStMember
Initial Cost, Buildings & Improvements 1,815us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMilweeStMember
Costs Subsequent to Acquisition 435us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMilweeStMember
Gross Carrying Amount, Land 778us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMilweeStMember
Gross Carrying Amount, Buildings 2,251us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMilweeStMember
Gross Carrying Amount, Total 3,029us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMilweeStMember
Accumulated Depreciation 1,571us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMilweeStMember
Lewisville / Highway 121 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 688us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LewisvilleHighwayOneTwoOneMember
Initial Cost, Buildings & Improvements 1,605us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LewisvilleHighwayOneTwoOneMember
Costs Subsequent to Acquisition 282us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LewisvilleHighwayOneTwoOneMember
Gross Carrying Amount, Land 688us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LewisvilleHighwayOneTwoOneMember
Gross Carrying Amount, Buildings 1,887us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LewisvilleHighwayOneTwoOneMember
Gross Carrying Amount, Total 2,575us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LewisvilleHighwayOneTwoOneMember
Accumulated Depreciation 1,264us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LewisvilleHighwayOneTwoOneMember
Richardson / Central Expressway [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 465us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RichardsonCentralExpresswayMember
Initial Cost, Buildings & Improvements 1,085us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RichardsonCentralExpresswayMember
Costs Subsequent to Acquisition 291us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RichardsonCentralExpresswayMember
Gross Carrying Amount, Land 465us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RichardsonCentralExpresswayMember
Gross Carrying Amount, Buildings 1,376us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RichardsonCentralExpresswayMember
Gross Carrying Amount, Total 1,841us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RichardsonCentralExpresswayMember
Accumulated Depreciation 951us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RichardsonCentralExpresswayMember
Houston / Hwy 6 South [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 569us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHwySixSouthMember
Initial Cost, Buildings & Improvements 1,328us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHwySixSouthMember
Costs Subsequent to Acquisition 237us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHwySixSouthMember
Gross Carrying Amount, Land 569us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHwySixSouthMember
Gross Carrying Amount, Buildings 1,565us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHwySixSouthMember
Gross Carrying Amount, Total 2,134us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHwySixSouthMember
Accumulated Depreciation 1,037us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHwySixSouthMember
Houston / Westheimer West [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,075us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWestheimerWestMember
Initial Cost, Buildings & Improvements 2,508us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWestheimerWestMember
Costs Subsequent to Acquisition 208us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWestheimerWestMember
Gross Carrying Amount, Land 1,075us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWestheimerWestMember
Gross Carrying Amount, Buildings 2,716us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWestheimerWestMember
Gross Carrying Amount, Total 3,791us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWestheimerWestMember
Accumulated Depreciation 1,752us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWestheimerWestMember
Ft. Worth / Granbury Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 763us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtWorthGranburyRoadMember
Initial Cost, Buildings & Improvements 1,781us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtWorthGranburyRoadMember
Costs Subsequent to Acquisition 288us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtWorthGranburyRoadMember
Gross Carrying Amount, Land 763us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtWorthGranburyRoadMember
Gross Carrying Amount, Buildings 2,069us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtWorthGranburyRoadMember
Gross Carrying Amount, Total 2,832us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtWorthGranburyRoadMember
Accumulated Depreciation 1,336us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtWorthGranburyRoadMember
Houston / New Castle [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 2,346us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonNewCastleMember
Initial Cost, Buildings & Improvements 5,473us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonNewCastleMember
Costs Subsequent to Acquisition 1,573us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonNewCastleMember
Gross Carrying Amount, Land 2,345us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonNewCastleMember
Gross Carrying Amount, Buildings 7,047us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonNewCastleMember
Gross Carrying Amount, Total 9,392us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonNewCastleMember
Accumulated Depreciation 4,454us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonNewCastleMember
Dallas / Inwood Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,478us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasInwoodRoadMember
Initial Cost, Buildings & Improvements 3,448us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasInwoodRoadMember
Costs Subsequent to Acquisition 275us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasInwoodRoadMember
Gross Carrying Amount, Land 1,477us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasInwoodRoadMember
Gross Carrying Amount, Buildings 3,724us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasInwoodRoadMember
Gross Carrying Amount, Total 5,201us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasInwoodRoadMember
Accumulated Depreciation 2,415us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasInwoodRoadMember
Fort Worth / Loop 820 North [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 729us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortWorthLoopEightTwoZeroNorthMember
Initial Cost, Buildings & Improvements 1,702us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortWorthLoopEightTwoZeroNorthMember
Costs Subsequent to Acquisition 452us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortWorthLoopEightTwoZeroNorthMember
Gross Carrying Amount, Land 729us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortWorthLoopEightTwoZeroNorthMember
Gross Carrying Amount, Buildings 2,154us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortWorthLoopEightTwoZeroNorthMember
Gross Carrying Amount, Total 2,883us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortWorthLoopEightTwoZeroNorthMember
Accumulated Depreciation 1,515us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortWorthLoopEightTwoZeroNorthMember
Arlington / Cooper St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 779us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArlingtonCooperStMember
Initial Cost, Buildings & Improvements 1,818us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArlingtonCooperStMember
Costs Subsequent to Acquisition 310us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArlingtonCooperStMember
Gross Carrying Amount, Land 779us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArlingtonCooperStMember
Gross Carrying Amount, Buildings 2,128us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArlingtonCooperStMember
Gross Carrying Amount, Total 2,907us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArlingtonCooperStMember
Accumulated Depreciation 1,392us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArlingtonCooperStMember
Webster / Highway 3 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 677us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WebsterHighwayThreeMember
Initial Cost, Buildings & Improvements 1,580us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WebsterHighwayThreeMember
Costs Subsequent to Acquisition 293us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WebsterHighwayThreeMember
Gross Carrying Amount, Land 677us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WebsterHighwayThreeMember
Gross Carrying Amount, Buildings 1,873us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WebsterHighwayThreeMember
Gross Carrying Amount, Total 2,550us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WebsterHighwayThreeMember
Accumulated Depreciation 1,248us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WebsterHighwayThreeMember
Augusta / Peach Orchard Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 860us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AugustaPeachOrchardRdMember
Initial Cost, Buildings & Improvements 2,007us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AugustaPeachOrchardRdMember
Costs Subsequent to Acquisition 572us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AugustaPeachOrchardRdMember
Gross Carrying Amount, Land 860us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AugustaPeachOrchardRdMember
Gross Carrying Amount, Buildings 2,579us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AugustaPeachOrchardRdMember
Gross Carrying Amount, Total 3,439us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AugustaPeachOrchardRdMember
Accumulated Depreciation 1,781us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AugustaPeachOrchardRdMember
Martinez / Old Petersburg Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 407us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MartinezOldPetersburgRdMember
Initial Cost, Buildings & Improvements 950us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MartinezOldPetersburgRdMember
Costs Subsequent to Acquisition 359us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MartinezOldPetersburgRdMember
Gross Carrying Amount, Land 407us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MartinezOldPetersburgRdMember
Gross Carrying Amount, Buildings 1,309us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MartinezOldPetersburgRdMember
Gross Carrying Amount, Total 1,716us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MartinezOldPetersburgRdMember
Accumulated Depreciation 908us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MartinezOldPetersburgRdMember
Jonesboro / Tara Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 785us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JonesboroTaraBlvdMember
Initial Cost, Buildings & Improvements 1,827us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JonesboroTaraBlvdMember
Costs Subsequent to Acquisition 651us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JonesboroTaraBlvdMember
Gross Carrying Amount, Land 784us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JonesboroTaraBlvdMember
Gross Carrying Amount, Buildings 2,479us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JonesboroTaraBlvdMember
Gross Carrying Amount, Total 3,263us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JonesboroTaraBlvdMember
Accumulated Depreciation 1,711us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JonesboroTaraBlvdMember
Atlanta / Briarcliff Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 2,171us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaBriarcliffRdMember
Initial Cost, Buildings & Improvements 5,066us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaBriarcliffRdMember
Costs Subsequent to Acquisition 633us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaBriarcliffRdMember
Gross Carrying Amount, Land 2,171us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaBriarcliffRdMember
Gross Carrying Amount, Buildings 5,699us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaBriarcliffRdMember
Gross Carrying Amount, Total 7,870us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaBriarcliffRdMember
Accumulated Depreciation 3,741us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaBriarcliffRdMember
Decatur / N Decatur Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 933us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DecaturNDecaturRdMember
Initial Cost, Buildings & Improvements 2,177us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DecaturNDecaturRdMember
Costs Subsequent to Acquisition 545us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DecaturNDecaturRdMember
Gross Carrying Amount, Land 933us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DecaturNDecaturRdMember
Gross Carrying Amount, Buildings 2,722us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DecaturNDecaturRdMember
Gross Carrying Amount, Total 3,655us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DecaturNDecaturRdMember
Accumulated Depreciation 1,855us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DecaturNDecaturRdMember
Douglasville / Westmoreland [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 453us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleWestmorelandMember
Initial Cost, Buildings & Improvements 1,056us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleWestmorelandMember
Costs Subsequent to Acquisition 341us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleWestmorelandMember
Gross Carrying Amount, Land 453us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleWestmorelandMember
Gross Carrying Amount, Buildings 1,397us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleWestmorelandMember
Gross Carrying Amount, Total 1,850us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleWestmorelandMember
Accumulated Depreciation 975us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleWestmorelandMember
Doraville / Mcelroy Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 827us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DoravilleMcelroyRdMember
Initial Cost, Buildings & Improvements 1,931us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DoravilleMcelroyRdMember
Costs Subsequent to Acquisition 476us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DoravilleMcelroyRdMember
Gross Carrying Amount, Land 827us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DoravilleMcelroyRdMember
Gross Carrying Amount, Buildings 2,407us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DoravilleMcelroyRdMember
Gross Carrying Amount, Total 3,234us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DoravilleMcelroyRdMember
Accumulated Depreciation 1,629us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DoravilleMcelroyRdMember
Roswell Alpharetta '99 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,772us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RoswellAlpharettaNinetyNineMember
Initial Cost, Buildings & Improvements 4,135us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RoswellAlpharettaNinetyNineMember
Costs Subsequent to Acquisition 449us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RoswellAlpharettaNinetyNineMember
Gross Carrying Amount, Land 1,772us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RoswellAlpharettaNinetyNineMember
Gross Carrying Amount, Buildings 4,584us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RoswellAlpharettaNinetyNineMember
Gross Carrying Amount, Total 6,356us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RoswellAlpharettaNinetyNineMember
Accumulated Depreciation 2,986us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RoswellAlpharettaNinetyNineMember
Douglasville / Duralee Lane [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 533us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleDuraleeLaneMember
Initial Cost, Buildings & Improvements 1,244us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleDuraleeLaneMember
Costs Subsequent to Acquisition 428us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleDuraleeLaneMember
Gross Carrying Amount, Land 533us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleDuraleeLaneMember
Gross Carrying Amount, Buildings 1,672us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleDuraleeLaneMember
Gross Carrying Amount, Total 2,205us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleDuraleeLaneMember
Accumulated Depreciation 1,133us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleDuraleeLaneMember
Douglasville / Highway 5 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 804us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleHighwayFiveMember
Initial Cost, Buildings & Improvements 1,875us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleHighwayFiveMember
Costs Subsequent to Acquisition 947us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleHighwayFiveMember
Gross Carrying Amount, Land 804us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleHighwayFiveMember
Gross Carrying Amount, Buildings 2,822us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleHighwayFiveMember
Gross Carrying Amount, Total 3,626us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleHighwayFiveMember
Accumulated Depreciation 1,986us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DouglasvilleHighwayFiveMember
Forest Park / Jonesboro [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 659us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkJonesboroMember
Initial Cost, Buildings & Improvements 1,537us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkJonesboroMember
Costs Subsequent to Acquisition 394us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkJonesboroMember
Gross Carrying Amount, Land 658us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkJonesboroMember
Gross Carrying Amount, Buildings 1,932us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkJonesboroMember
Gross Carrying Amount, Total 2,590us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkJonesboroMember
Accumulated Depreciation 1,311us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkJonesboroMember
Marietta / Whitlock [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,016us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaWhitlockMember
Initial Cost, Buildings & Improvements 2,370us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaWhitlockMember
Costs Subsequent to Acquisition 342us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaWhitlockMember
Gross Carrying Amount, Land 1,016us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaWhitlockMember
Gross Carrying Amount, Buildings 2,712us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaWhitlockMember
Gross Carrying Amount, Total 3,728us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaWhitlockMember
Accumulated Depreciation 1,787us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaWhitlockMember
Marietta / Cobb [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 727us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaCobbMember
Initial Cost, Buildings & Improvements 1,696us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaCobbMember
Costs Subsequent to Acquisition 604us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaCobbMember
Gross Carrying Amount, Land 727us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaCobbMember
Gross Carrying Amount, Buildings 2,300us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaCobbMember
Gross Carrying Amount, Total 3,027us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaCobbMember
Accumulated Depreciation 1,651us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaCobbMember
Norcross / Jones Mill Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,142us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorcrossJonesMillRdMember
Initial Cost, Buildings & Improvements 2,670us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorcrossJonesMillRdMember
Costs Subsequent to Acquisition 409us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorcrossJonesMillRdMember
Gross Carrying Amount, Land 1,142us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorcrossJonesMillRdMember
Gross Carrying Amount, Buildings 3,079us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorcrossJonesMillRdMember
Gross Carrying Amount, Total 4,221us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorcrossJonesMillRdMember
Accumulated Depreciation 2,021us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorcrossJonesMillRdMember
Norcross / Dawson Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,232us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorcrossDawsonBlvdMember
Initial Cost, Buildings & Improvements 2,874us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorcrossDawsonBlvdMember
Costs Subsequent to Acquisition 858us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorcrossDawsonBlvdMember
Gross Carrying Amount, Land 1,231us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorcrossDawsonBlvdMember
Gross Carrying Amount, Buildings 3,733us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorcrossDawsonBlvdMember
Gross Carrying Amount, Total 4,964us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorcrossDawsonBlvdMember
Accumulated Depreciation 2,572us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorcrossDawsonBlvdMember
Forest Park / Old Dixie Hwy [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 895us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkOldDixieHwyMember
Initial Cost, Buildings & Improvements 2,070us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkOldDixieHwyMember
Costs Subsequent to Acquisition 789us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkOldDixieHwyMember
Gross Carrying Amount, Land 889us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkOldDixieHwyMember
Gross Carrying Amount, Buildings 2,865us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkOldDixieHwyMember
Gross Carrying Amount, Total 3,754us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkOldDixieHwyMember
Accumulated Depreciation 1,944us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkOldDixieHwyMember
Decatur/ Covington '99 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,764us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DecaturCovingtonNinetyNineMember
Initial Cost, Buildings & Improvements 4,116us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DecaturCovingtonNinetyNineMember
Costs Subsequent to Acquisition 574us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DecaturCovingtonNinetyNineMember
Gross Carrying Amount, Land 1,763us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DecaturCovingtonNinetyNineMember
Gross Carrying Amount, Buildings 4,691us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DecaturCovingtonNinetyNineMember
Gross Carrying Amount, Total 6,454us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DecaturCovingtonNinetyNineMember
Accumulated Depreciation 3,040us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DecaturCovingtonNinetyNineMember
Alpharetta / Maxwell Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,075us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlpharettaMaxwellRdMember
Initial Cost, Buildings & Improvements 2,509us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlpharettaMaxwellRdMember
Costs Subsequent to Acquisition 382us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlpharettaMaxwellRdMember
Gross Carrying Amount, Land 1,075us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlpharettaMaxwellRdMember
Gross Carrying Amount, Buildings 2,891us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlpharettaMaxwellRdMember
Gross Carrying Amount, Total 3,966us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlpharettaMaxwellRdMember
Accumulated Depreciation 1,863us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlpharettaMaxwellRdMember
Alpharetta / N. Main St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,240us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlpharettaNMainStMember
Initial Cost, Buildings & Improvements 2,893us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlpharettaNMainStMember
Costs Subsequent to Acquisition 315us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlpharettaNMainStMember
Gross Carrying Amount, Land 1,240us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlpharettaNMainStMember
Gross Carrying Amount, Buildings 3,208us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlpharettaNMainStMember
Gross Carrying Amount, Total 4,448us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlpharettaNMainStMember
Accumulated Depreciation 2,065us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlpharettaNMainStMember
Atlanta / Bolton Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 866us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaBoltonRdMember
Initial Cost, Buildings & Improvements 2,019us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaBoltonRdMember
Costs Subsequent to Acquisition 358us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaBoltonRdMember
Gross Carrying Amount, Land 865us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaBoltonRdMember
Gross Carrying Amount, Buildings 2,378us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaBoltonRdMember
Gross Carrying Amount, Total 3,243us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaBoltonRdMember
Accumulated Depreciation 1,593us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaBoltonRdMember
Riverdale / Georgia Hwy 85 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,075us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiverdaleGeorgiaHwyEightFiveMember
Initial Cost, Buildings & Improvements 2,508us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiverdaleGeorgiaHwyEightFiveMember
Costs Subsequent to Acquisition 443us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiverdaleGeorgiaHwyEightFiveMember
Gross Carrying Amount, Land 1,075us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiverdaleGeorgiaHwyEightFiveMember
Gross Carrying Amount, Buildings 2,951us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiverdaleGeorgiaHwyEightFiveMember
Gross Carrying Amount, Total 4,026us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiverdaleGeorgiaHwyEightFiveMember
Accumulated Depreciation 1,943us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiverdaleGeorgiaHwyEightFiveMember
Kennesaw / Rutledge Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 803us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennesawRutledgeRoadMember
Initial Cost, Buildings & Improvements 1,874us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennesawRutledgeRoadMember
Costs Subsequent to Acquisition 523us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennesawRutledgeRoadMember
Gross Carrying Amount, Land 803us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennesawRutledgeRoadMember
Gross Carrying Amount, Buildings 2,397us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennesawRutledgeRoadMember
Gross Carrying Amount, Total 3,200us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennesawRutledgeRoadMember
Accumulated Depreciation 1,672us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennesawRutledgeRoadMember
Lawrenceville / Buford Dr. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 256us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LawrencevilleBufordDrMember
Initial Cost, Buildings & Improvements 597us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LawrencevilleBufordDrMember
Costs Subsequent to Acquisition 198us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LawrencevilleBufordDrMember
Gross Carrying Amount, Land 256us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LawrencevilleBufordDrMember
Gross Carrying Amount, Buildings 795us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LawrencevilleBufordDrMember
Gross Carrying Amount, Total 1,051us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LawrencevilleBufordDrMember
Accumulated Depreciation 553us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LawrencevilleBufordDrMember
Hanover Park / W. Lake Street [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,320us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HanoverParkWLakeStreetMember
Initial Cost, Buildings & Improvements 3,081us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HanoverParkWLakeStreetMember
Costs Subsequent to Acquisition 382us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HanoverParkWLakeStreetMember
Gross Carrying Amount, Land 1,320us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HanoverParkWLakeStreetMember
Gross Carrying Amount, Buildings 3,463us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HanoverParkWLakeStreetMember
Gross Carrying Amount, Total 4,783us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HanoverParkWLakeStreetMember
Accumulated Depreciation 2,275us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HanoverParkWLakeStreetMember
Chicago / W. Jarvis Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 313us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWJarvisAveMember
Initial Cost, Buildings & Improvements 731us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWJarvisAveMember
Costs Subsequent to Acquisition 191us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWJarvisAveMember
Gross Carrying Amount, Land 313us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWJarvisAveMember
Gross Carrying Amount, Buildings 922us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWJarvisAveMember
Gross Carrying Amount, Total 1,235us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWJarvisAveMember
Accumulated Depreciation 634us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWJarvisAveMember
Chicago / N. Broadway St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 535us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoNBroadwayStMember
Initial Cost, Buildings & Improvements 1,249us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoNBroadwayStMember
Costs Subsequent to Acquisition 575us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoNBroadwayStMember
Gross Carrying Amount, Land 535us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoNBroadwayStMember
Gross Carrying Amount, Buildings 1,824us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoNBroadwayStMember
Gross Carrying Amount, Total 2,359us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoNBroadwayStMember
Accumulated Depreciation 1,232us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoNBroadwayStMember
Carol Stream / Phillips Court [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 829us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarolStreamPhillipsCourtMember
Initial Cost, Buildings & Improvements 1,780us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarolStreamPhillipsCourtMember
Costs Subsequent to Acquisition 705us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarolStreamPhillipsCourtMember
Gross Carrying Amount, Land 782us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarolStreamPhillipsCourtMember
Gross Carrying Amount, Buildings 2,532us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarolStreamPhillipsCourtMember
Gross Carrying Amount, Total 3,314us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarolStreamPhillipsCourtMember
Accumulated Depreciation 1,467us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarolStreamPhillipsCourtMember
Winfield / Roosevelt Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,109us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WinfieldRooseveltRoadMember
Initial Cost, Buildings & Improvements 2,587us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WinfieldRooseveltRoadMember
Costs Subsequent to Acquisition 491us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WinfieldRooseveltRoadMember
Gross Carrying Amount, Land 1,108us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WinfieldRooseveltRoadMember
Gross Carrying Amount, Buildings 3,079us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WinfieldRooseveltRoadMember
Gross Carrying Amount, Total 4,187us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WinfieldRooseveltRoadMember
Accumulated Depreciation 2,042us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WinfieldRooseveltRoadMember
Schaumburg / S. Roselle Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 659us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgSRoselleRoadMember
Initial Cost, Buildings & Improvements 1,537us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgSRoselleRoadMember
Costs Subsequent to Acquisition 323us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgSRoselleRoadMember
Gross Carrying Amount, Land 659us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgSRoselleRoadMember
Gross Carrying Amount, Buildings 1,860us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgSRoselleRoadMember
Gross Carrying Amount, Total 2,519us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgSRoselleRoadMember
Accumulated Depreciation 1,241us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgSRoselleRoadMember
Tinley Park / Brennan Hwy [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 771us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TinleyParkBrennanHwyMember
Initial Cost, Buildings & Improvements 1,799us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TinleyParkBrennanHwyMember
Costs Subsequent to Acquisition 512us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TinleyParkBrennanHwyMember
Gross Carrying Amount, Land 771us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TinleyParkBrennanHwyMember
Gross Carrying Amount, Buildings 2,311us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TinleyParkBrennanHwyMember
Gross Carrying Amount, Total 3,082us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TinleyParkBrennanHwyMember
Accumulated Depreciation 1,569us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TinleyParkBrennanHwyMember
Schaumburg / Palmer Drive [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,333us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgPalmerDriveMember
Initial Cost, Buildings & Improvements 3,111us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgPalmerDriveMember
Costs Subsequent to Acquisition 707us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgPalmerDriveMember
Gross Carrying Amount, Land 1,333us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgPalmerDriveMember
Gross Carrying Amount, Buildings 3,818us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgPalmerDriveMember
Gross Carrying Amount, Total 5,151us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgPalmerDriveMember
Accumulated Depreciation 2,615us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SchaumburgPalmerDriveMember
Mobile / Hillcrest Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 554us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileHillcrestRoadMember
Initial Cost, Buildings & Improvements 1,293us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileHillcrestRoadMember
Costs Subsequent to Acquisition 316us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileHillcrestRoadMember
Gross Carrying Amount, Land 554us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileHillcrestRoadMember
Gross Carrying Amount, Buildings 1,609us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileHillcrestRoadMember
Gross Carrying Amount, Total 2,163us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileHillcrestRoadMember
Accumulated Depreciation 1,090us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileHillcrestRoadMember
Mobile / Azalea Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 517us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileAzaleaRoadMember
Initial Cost, Buildings & Improvements 1,206us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileAzaleaRoadMember
Costs Subsequent to Acquisition 1,318us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileAzaleaRoadMember
Gross Carrying Amount, Land 517us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileAzaleaRoadMember
Gross Carrying Amount, Buildings 2,524us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileAzaleaRoadMember
Gross Carrying Amount, Total 3,041us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileAzaleaRoadMember
Accumulated Depreciation 2,051us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileAzaleaRoadMember
Mobile / Moffat Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 537us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileMoffatRoadMember
Initial Cost, Buildings & Improvements 1,254us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileMoffatRoadMember
Costs Subsequent to Acquisition 464us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileMoffatRoadMember
Gross Carrying Amount, Land 537us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileMoffatRoadMember
Gross Carrying Amount, Buildings 1,718us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileMoffatRoadMember
Gross Carrying Amount, Total 2,255us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileMoffatRoadMember
Accumulated Depreciation 1,208us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileMoffatRoadMember
Mobile / Grelot Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 804us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileGrelotRoadMember
Initial Cost, Buildings & Improvements 1,877us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileGrelotRoadMember
Costs Subsequent to Acquisition 369us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileGrelotRoadMember
Gross Carrying Amount, Land 804us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileGrelotRoadMember
Gross Carrying Amount, Buildings 2,246us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileGrelotRoadMember
Gross Carrying Amount, Total 3,050us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileGrelotRoadMember
Accumulated Depreciation 1,518us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileGrelotRoadMember
Mobile / Government Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 407us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileGovernmentBlvdMember
Initial Cost, Buildings & Improvements 950us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileGovernmentBlvdMember
Costs Subsequent to Acquisition 432us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileGovernmentBlvdMember
Gross Carrying Amount, Land 407us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileGovernmentBlvdMember
Gross Carrying Amount, Buildings 1,382us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileGovernmentBlvdMember
Gross Carrying Amount, Total 1,789us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileGovernmentBlvdMember
Accumulated Depreciation 969us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MobileGovernmentBlvdMember
New Orleans / Tchoupitoulas [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,092us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewOrleansTchoupitoulasMember
Initial Cost, Buildings & Improvements 2,548us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewOrleansTchoupitoulasMember
Costs Subsequent to Acquisition 760us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewOrleansTchoupitoulasMember
Gross Carrying Amount, Land 1,092us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewOrleansTchoupitoulasMember
Gross Carrying Amount, Buildings 3,308us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewOrleansTchoupitoulasMember
Gross Carrying Amount, Total 4,400us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewOrleansTchoupitoulasMember
Accumulated Depreciation 2,324us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewOrleansTchoupitoulasMember
Louisville / Breckenridge Lane [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 581us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvilleBreckenridgeLaneMember
Initial Cost, Buildings & Improvements 1,356us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvilleBreckenridgeLaneMember
Costs Subsequent to Acquisition 294us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvilleBreckenridgeLaneMember
Gross Carrying Amount, Land 581us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvilleBreckenridgeLaneMember
Gross Carrying Amount, Buildings 1,650us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvilleBreckenridgeLaneMember
Gross Carrying Amount, Total 2,231us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvilleBreckenridgeLaneMember
Accumulated Depreciation 1,106us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvilleBreckenridgeLaneMember
Louisville '99 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 554us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvilleNinetyNineMember
Initial Cost, Buildings & Improvements 1,292us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvilleNinetyNineMember
Costs Subsequent to Acquisition 418us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvilleNinetyNineMember
Gross Carrying Amount, Land 554us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvilleNinetyNineMember
Gross Carrying Amount, Buildings 1,710us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvilleNinetyNineMember
Gross Carrying Amount, Total 2,264us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvilleNinetyNineMember
Accumulated Depreciation 1,100us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvilleNinetyNineMember
Louisville / Poplar Level [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 463us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvillePoplarLevelMember
Initial Cost, Buildings & Improvements 1,080us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvillePoplarLevelMember
Costs Subsequent to Acquisition 342us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvillePoplarLevelMember
Gross Carrying Amount, Land 463us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvillePoplarLevelMember
Gross Carrying Amount, Buildings 1,422us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvillePoplarLevelMember
Gross Carrying Amount, Total 1,885us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvillePoplarLevelMember
Accumulated Depreciation 1,016us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LouisvillePoplarLevelMember
Chesapeake / Western Branch [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,274us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChesapeakeWesternBranchMember
Initial Cost, Buildings & Improvements 2,973us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChesapeakeWesternBranchMember
Costs Subsequent to Acquisition 422us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChesapeakeWesternBranchMember
Gross Carrying Amount, Land 1,274us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChesapeakeWesternBranchMember
Gross Carrying Amount, Buildings 3,395us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChesapeakeWesternBranchMember
Gross Carrying Amount, Total 4,669us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChesapeakeWesternBranchMember
Accumulated Depreciation 2,225us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChesapeakeWesternBranchMember
Centreville / Lee Hwy [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,650us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CentrevilleLeeHwyMember
Initial Cost, Buildings & Improvements 3,851us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CentrevilleLeeHwyMember
Costs Subsequent to Acquisition 4,542us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CentrevilleLeeHwyMember
Gross Carrying Amount, Land 1,635us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CentrevilleLeeHwyMember
Gross Carrying Amount, Buildings 8,408us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CentrevilleLeeHwyMember
Gross Carrying Amount, Total 10,043us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CentrevilleLeeHwyMember
Accumulated Depreciation 4,399us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CentrevilleLeeHwyMember
Sterling / S. Sterling Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,282us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SterlingSSterlingBlvdMember
Initial Cost, Buildings & Improvements 2,992us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SterlingSSterlingBlvdMember
Costs Subsequent to Acquisition 381us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SterlingSSterlingBlvdMember
Gross Carrying Amount, Land 1,271us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SterlingSSterlingBlvdMember
Gross Carrying Amount, Buildings 3,384us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SterlingSSterlingBlvdMember
Gross Carrying Amount, Total 4,655us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SterlingSSterlingBlvdMember
Accumulated Depreciation 2,182us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SterlingSSterlingBlvdMember
Manassas / Sudley Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 776us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ManassasSudleyRoadMember
Initial Cost, Buildings & Improvements 1,810us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ManassasSudleyRoadMember
Costs Subsequent to Acquisition 281us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ManassasSudleyRoadMember
Gross Carrying Amount, Land 776us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ManassasSudleyRoadMember
Gross Carrying Amount, Buildings 2,091us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ManassasSudleyRoadMember
Gross Carrying Amount, Total 2,867us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ManassasSudleyRoadMember
Accumulated Depreciation 1,420us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ManassasSudleyRoadMember
Longmont / Wedgewood Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 717us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongmontWedgewoodAveMember
Initial Cost, Buildings & Improvements 1,673us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongmontWedgewoodAveMember
Costs Subsequent to Acquisition 211us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongmontWedgewoodAveMember
Gross Carrying Amount, Land 717us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongmontWedgewoodAveMember
Gross Carrying Amount, Buildings 1,884us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongmontWedgewoodAveMember
Gross Carrying Amount, Total 2,601us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongmontWedgewoodAveMember
Accumulated Depreciation 1,254us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LongmontWedgewoodAveMember
Fort Collins / So.College Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 745us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortCollinsSoCollegeAveMember
Initial Cost, Buildings & Improvements 1,739us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortCollinsSoCollegeAveMember
Costs Subsequent to Acquisition 642us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortCollinsSoCollegeAveMember
Gross Carrying Amount, Land 745us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortCollinsSoCollegeAveMember
Gross Carrying Amount, Buildings 2,381us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortCollinsSoCollegeAveMember
Gross Carrying Amount, Total 3,126us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortCollinsSoCollegeAveMember
Accumulated Depreciation 1,552us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortCollinsSoCollegeAveMember
Colo Sprngs / Parkmoor Village [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 620us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsParkmoorVillageMember
Initial Cost, Buildings & Improvements 1,446us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsParkmoorVillageMember
Costs Subsequent to Acquisition 842us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsParkmoorVillageMember
Gross Carrying Amount, Land 620us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsParkmoorVillageMember
Gross Carrying Amount, Buildings 2,288us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsParkmoorVillageMember
Gross Carrying Amount, Total 2,908us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsParkmoorVillageMember
Accumulated Depreciation 1,600us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsParkmoorVillageMember
Colo Sprngs / Van Teylingen [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,216us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsVanTeylingenMember
Initial Cost, Buildings & Improvements 2,837us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsVanTeylingenMember
Costs Subsequent to Acquisition 496us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsVanTeylingenMember
Gross Carrying Amount, Land 1,215us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsVanTeylingenMember
Gross Carrying Amount, Buildings 3,334us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsVanTeylingenMember
Gross Carrying Amount, Total 4,549us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsVanTeylingenMember
Accumulated Depreciation 2,188us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsVanTeylingenMember
Denver / So. Clinton St. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 462us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DenverSoClintonStMember
Initial Cost, Buildings & Improvements 1,609us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DenverSoClintonStMember
Costs Subsequent to Acquisition 277us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DenverSoClintonStMember
Gross Carrying Amount, Land 462us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DenverSoClintonStMember
Gross Carrying Amount, Buildings 1,886us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DenverSoClintonStMember
Gross Carrying Amount, Total 2,348us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DenverSoClintonStMember
Accumulated Depreciation 1,251us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DenverSoClintonStMember
Denver / Washington St. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 795us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DenverWashingtonStMember
Initial Cost, Buildings & Improvements 1,846us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DenverWashingtonStMember
Costs Subsequent to Acquisition 614us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DenverWashingtonStMember
Gross Carrying Amount, Land 792us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DenverWashingtonStMember
Gross Carrying Amount, Buildings 2,463us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DenverWashingtonStMember
Gross Carrying Amount, Total 3,255us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DenverWashingtonStMember
Accumulated Depreciation 1,664us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DenverWashingtonStMember
Colo Sprngs / Centennial Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,352us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsCentennialBlvdMember
Initial Cost, Buildings & Improvements 3,155us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsCentennialBlvdMember
Costs Subsequent to Acquisition 234us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsCentennialBlvdMember
Gross Carrying Amount, Land 1,352us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsCentennialBlvdMember
Gross Carrying Amount, Buildings 3,389us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsCentennialBlvdMember
Gross Carrying Amount, Total 4,741us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsCentennialBlvdMember
Accumulated Depreciation 2,201us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsCentennialBlvdMember
Colo Sprngs / Astrozon Court [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 810us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsAstrozonCourtMember
Initial Cost, Buildings & Improvements 1,889us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsAstrozonCourtMember
Costs Subsequent to Acquisition 578us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsAstrozonCourtMember
Gross Carrying Amount, Land 809us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsAstrozonCourtMember
Gross Carrying Amount, Buildings 2,468us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsAstrozonCourtMember
Gross Carrying Amount, Total 3,277us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsAstrozonCourtMember
Accumulated Depreciation 1,701us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsAstrozonCourtMember
Arvada / 64th Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 671us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArvadaSixtyFourthAveMember
Initial Cost, Buildings & Improvements 1,566us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArvadaSixtyFourthAveMember
Costs Subsequent to Acquisition 225us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArvadaSixtyFourthAveMember
Gross Carrying Amount, Land 671us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArvadaSixtyFourthAveMember
Gross Carrying Amount, Buildings 1,791us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArvadaSixtyFourthAveMember
Gross Carrying Amount, Total 2,462us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArvadaSixtyFourthAveMember
Accumulated Depreciation 1,192us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ArvadaSixtyFourthAveMember
Golden / Simms Street [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 918us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GoldenSimmsStreetMember
Initial Cost, Buildings & Improvements 2,143us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GoldenSimmsStreetMember
Costs Subsequent to Acquisition 734us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GoldenSimmsStreetMember
Gross Carrying Amount, Land 918us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GoldenSimmsStreetMember
Gross Carrying Amount, Buildings 2,877us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GoldenSimmsStreetMember
Gross Carrying Amount, Total 3,795us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GoldenSimmsStreetMember
Accumulated Depreciation 1,984us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GoldenSimmsStreetMember
Lawrence / Haskell Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 636us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LawrenceHaskellAveMember
Initial Cost, Buildings & Improvements 1,484us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LawrenceHaskellAveMember
Costs Subsequent to Acquisition 377us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LawrenceHaskellAveMember
Gross Carrying Amount, Land 636us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LawrenceHaskellAveMember
Gross Carrying Amount, Buildings 1,861us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LawrenceHaskellAveMember
Gross Carrying Amount, Total 2,497us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LawrenceHaskellAveMember
Accumulated Depreciation 1,251us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LawrenceHaskellAveMember
Overland Park / Hemlock St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,168us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OverlandParkHemlockStMember
Initial Cost, Buildings & Improvements 2,725us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OverlandParkHemlockStMember
Costs Subsequent to Acquisition 302us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OverlandParkHemlockStMember
Gross Carrying Amount, Land 1,168us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OverlandParkHemlockStMember
Gross Carrying Amount, Buildings 3,027us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OverlandParkHemlockStMember
Gross Carrying Amount, Total 4,195us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OverlandParkHemlockStMember
Accumulated Depreciation 2,013us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OverlandParkHemlockStMember
Lenexa / Long St. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 720us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LenexaLongStMember
Initial Cost, Buildings & Improvements 1,644us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LenexaLongStMember
Costs Subsequent to Acquisition 180us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LenexaLongStMember
Gross Carrying Amount, Land 709us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LenexaLongStMember
Gross Carrying Amount, Buildings 1,835us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LenexaLongStMember
Gross Carrying Amount, Total 2,544us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LenexaLongStMember
Accumulated Depreciation 1,209us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LenexaLongStMember
Shawnee / Hedge Lane Terrace [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 570us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ShawneeHedgeLaneTerraceMember
Initial Cost, Buildings & Improvements 1,331us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ShawneeHedgeLaneTerraceMember
Costs Subsequent to Acquisition 205us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ShawneeHedgeLaneTerraceMember
Gross Carrying Amount, Land 570us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ShawneeHedgeLaneTerraceMember
Gross Carrying Amount, Buildings 1,536us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ShawneeHedgeLaneTerraceMember
Gross Carrying Amount, Total 2,106us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ShawneeHedgeLaneTerraceMember
Accumulated Depreciation 1,040us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ShawneeHedgeLaneTerraceMember
Mission / Foxridge Dr [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,657us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MissionFoxridgeDrMember
Initial Cost, Buildings & Improvements 3,864us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MissionFoxridgeDrMember
Costs Subsequent to Acquisition 442us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MissionFoxridgeDrMember
Gross Carrying Amount, Land 1,656us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MissionFoxridgeDrMember
Gross Carrying Amount, Buildings 4,307us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MissionFoxridgeDrMember
Gross Carrying Amount, Total 5,963us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MissionFoxridgeDrMember
Accumulated Depreciation 2,862us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MissionFoxridgeDrMember
Milwaukee / W. Dean Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,362us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeWDeanRoadMember
Initial Cost, Buildings & Improvements 3,163us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeWDeanRoadMember
Costs Subsequent to Acquisition 920us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeWDeanRoadMember
Gross Carrying Amount, Land 1,357us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeWDeanRoadMember
Gross Carrying Amount, Buildings 4,088us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeWDeanRoadMember
Gross Carrying Amount, Total 5,445us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeWDeanRoadMember
Accumulated Depreciation 2,805us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilwaukeeWDeanRoadMember
Columbus / Morse Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,415us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbusMorseRoadMember
Initial Cost, Buildings & Improvements 3,302us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbusMorseRoadMember
Costs Subsequent to Acquisition 1,526us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbusMorseRoadMember
Gross Carrying Amount, Land 1,415us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbusMorseRoadMember
Gross Carrying Amount, Buildings 4,828us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbusMorseRoadMember
Gross Carrying Amount, Total 6,243us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbusMorseRoadMember
Accumulated Depreciation 3,477us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColumbusMorseRoadMember
Milford / Branch Hill [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 527us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilfordBranchHillMember
Initial Cost, Buildings & Improvements 1,229us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilfordBranchHillMember
Costs Subsequent to Acquisition 2,682us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilfordBranchHillMember
Gross Carrying Amount, Land 527us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilfordBranchHillMember
Gross Carrying Amount, Buildings 3,911us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilfordBranchHillMember
Gross Carrying Amount, Total 4,438us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilfordBranchHillMember
Accumulated Depreciation 2,333us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MilfordBranchHillMember
Fairfield / Dixie [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 519us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FairfieldDixieMember
Initial Cost, Buildings & Improvements 1,211us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FairfieldDixieMember
Costs Subsequent to Acquisition 426us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FairfieldDixieMember
Gross Carrying Amount, Land 519us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FairfieldDixieMember
Gross Carrying Amount, Buildings 1,637us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FairfieldDixieMember
Gross Carrying Amount, Total 2,156us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FairfieldDixieMember
Accumulated Depreciation 1,158us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FairfieldDixieMember
Cincinnati / Western Hills [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 758us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CincinnatiWesternHillsMember
Initial Cost, Buildings & Improvements 1,769us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CincinnatiWesternHillsMember
Costs Subsequent to Acquisition 470us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CincinnatiWesternHillsMember
Gross Carrying Amount, Land 758us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CincinnatiWesternHillsMember
Gross Carrying Amount, Buildings 2,239us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CincinnatiWesternHillsMember
Gross Carrying Amount, Total 2,997us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CincinnatiWesternHillsMember
Accumulated Depreciation 1,543us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CincinnatiWesternHillsMember
Austin / N. Mopac Expressway [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 865us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinNMopacExpresswayMember
Initial Cost, Buildings & Improvements 2,791us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinNMopacExpresswayMember
Costs Subsequent to Acquisition 258us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinNMopacExpresswayMember
Gross Carrying Amount, Land 865us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinNMopacExpresswayMember
Gross Carrying Amount, Buildings 3,049us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinNMopacExpresswayMember
Gross Carrying Amount, Total 3,914us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinNMopacExpresswayMember
Accumulated Depreciation 1,927us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AustinNMopacExpresswayMember
Atlanta / Dunwoody Place [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,410us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaDunwoodyPlaceMember
Initial Cost, Buildings & Improvements 3,296us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaDunwoodyPlaceMember
Costs Subsequent to Acquisition 613us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaDunwoodyPlaceMember
Gross Carrying Amount, Land 1,390us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaDunwoodyPlaceMember
Gross Carrying Amount, Buildings 3,929us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaDunwoodyPlaceMember
Gross Carrying Amount, Total 5,319us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaDunwoodyPlaceMember
Accumulated Depreciation 2,573us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AtlantaDunwoodyPlaceMember
Kennedale/Bowman Sprgs [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 425us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennedaleBowmanSprgsMember
Initial Cost, Buildings & Improvements 991us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennedaleBowmanSprgsMember
Costs Subsequent to Acquisition 226us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennedaleBowmanSprgsMember
Gross Carrying Amount, Land 425us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennedaleBowmanSprgsMember
Gross Carrying Amount, Buildings 1,217us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennedaleBowmanSprgsMember
Gross Carrying Amount, Total 1,642us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennedaleBowmanSprgsMember
Accumulated Depreciation 801us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KennedaleBowmanSprgsMember
Colo Sprngs/N.Powers [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,124us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsNPowersMember
Initial Cost, Buildings & Improvements 2,622us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsNPowersMember
Costs Subsequent to Acquisition 1,215us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsNPowersMember
Gross Carrying Amount, Land 1,123us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsNPowersMember
Gross Carrying Amount, Buildings 3,838us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsNPowersMember
Gross Carrying Amount, Total 4,961us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsNPowersMember
Accumulated Depreciation 2,596us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ColoSprngsNPowersMember
St. Louis/S. Third St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 206us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisSThirdStMember
Initial Cost, Buildings & Improvements 480us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisSThirdStMember
Costs Subsequent to Acquisition 15us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisSThirdStMember
Gross Carrying Amount, Land 206us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisSThirdStMember
Gross Carrying Amount, Buildings 495us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisSThirdStMember
Gross Carrying Amount, Total 701us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisSThirdStMember
Accumulated Depreciation 316us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisSThirdStMember
Orlando / L.B. Mcleod Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 521us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoLBMcleodRoadMember
Initial Cost, Buildings & Improvements 1,217us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoLBMcleodRoadMember
Costs Subsequent to Acquisition 291us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoLBMcleodRoadMember
Gross Carrying Amount, Land 521us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoLBMcleodRoadMember
Gross Carrying Amount, Buildings 1,508us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoLBMcleodRoadMember
Gross Carrying Amount, Total 2,029us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoLBMcleodRoadMember
Accumulated Depreciation 1,056us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrlandoLBMcleodRoadMember
Jacksonville / Roosevelt Blvd. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 851us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleRooseveltBlvdMember
Initial Cost, Buildings & Improvements 1,986us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleRooseveltBlvdMember
Costs Subsequent to Acquisition 520us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleRooseveltBlvdMember
Gross Carrying Amount, Land 851us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleRooseveltBlvdMember
Gross Carrying Amount, Buildings 2,506us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleRooseveltBlvdMember
Gross Carrying Amount, Total 3,357us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleRooseveltBlvdMember
Accumulated Depreciation 1,750us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleRooseveltBlvdMember
Miami-Kendall / Sw 84th Street [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 935us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiKendallSwEightyFourthStreetMember
Initial Cost, Buildings & Improvements 2,180us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiKendallSwEightyFourthStreetMember
Costs Subsequent to Acquisition 671us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiKendallSwEightyFourthStreetMember
Gross Carrying Amount, Land 934us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiKendallSwEightyFourthStreetMember
Gross Carrying Amount, Buildings 2,852us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiKendallSwEightyFourthStreetMember
Gross Carrying Amount, Total 3,786us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiKendallSwEightyFourthStreetMember
Accumulated Depreciation 1,862us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiKendallSwEightyFourthStreetMember
North Miami Beach / 69th St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,594us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthMiamiBeachSixtyNinthStMember
Initial Cost, Buildings & Improvements 3,720us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthMiamiBeachSixtyNinthStMember
Costs Subsequent to Acquisition 706us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthMiamiBeachSixtyNinthStMember
Gross Carrying Amount, Land 1,594us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthMiamiBeachSixtyNinthStMember
Gross Carrying Amount, Buildings 4,426us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthMiamiBeachSixtyNinthStMember
Gross Carrying Amount, Total 6,020us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthMiamiBeachSixtyNinthStMember
Accumulated Depreciation 2,984us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthMiamiBeachSixtyNinthStMember
Miami Beach / Dade Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 962us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBeachDadeBlvdMember
Initial Cost, Buildings & Improvements 2,245us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBeachDadeBlvdMember
Costs Subsequent to Acquisition 2,275us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBeachDadeBlvdMember
Gross Carrying Amount, Land 962us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBeachDadeBlvdMember
Gross Carrying Amount, Buildings 4,520us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBeachDadeBlvdMember
Gross Carrying Amount, Total 5,482us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBeachDadeBlvdMember
Accumulated Depreciation 2,870us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiBeachDadeBlvdMember
Chicago / N. Natchez Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,684us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoNNatchezAveMember
Initial Cost, Buildings & Improvements 3,930us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoNNatchezAveMember
Costs Subsequent to Acquisition 728us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoNNatchezAveMember
Gross Carrying Amount, Land 1,684us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoNNatchezAveMember
Gross Carrying Amount, Buildings 4,658us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoNNatchezAveMember
Gross Carrying Amount, Total 6,342us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoNNatchezAveMember
Accumulated Depreciation 3,111us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoNNatchezAveMember
Chicago / W. Cermak Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,294us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWCermakRoadMember
Initial Cost, Buildings & Improvements 3,019us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWCermakRoadMember
Costs Subsequent to Acquisition 1,542us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWCermakRoadMember
Gross Carrying Amount, Land 1,294us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWCermakRoadMember
Gross Carrying Amount, Buildings 4,561us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWCermakRoadMember
Gross Carrying Amount, Total 5,855us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWCermakRoadMember
Accumulated Depreciation 3,421us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWCermakRoadMember
Kansas City / State Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 645us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityStateAveMember
Initial Cost, Buildings & Improvements 1,505us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityStateAveMember
Costs Subsequent to Acquisition 425us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityStateAveMember
Gross Carrying Amount, Land 645us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityStateAveMember
Gross Carrying Amount, Buildings 1,930us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityStateAveMember
Gross Carrying Amount, Total 2,575us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityStateAveMember
Accumulated Depreciation 1,348us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_KansasCityStateAveMember
Lenexa / Santa Fe Trail Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 713us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LenexaSantaFeTrailRoadMember
Initial Cost, Buildings & Improvements 1,663us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LenexaSantaFeTrailRoadMember
Costs Subsequent to Acquisition 283us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LenexaSantaFeTrailRoadMember
Gross Carrying Amount, Land 713us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LenexaSantaFeTrailRoadMember
Gross Carrying Amount, Buildings 1,946us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LenexaSantaFeTrailRoadMember
Gross Carrying Amount, Total 2,659us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LenexaSantaFeTrailRoadMember
Accumulated Depreciation 1,291us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LenexaSantaFeTrailRoadMember
Waukesha / Foster Court [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 765us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeshaFosterCourtMember
Initial Cost, Buildings & Improvements 1,785us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeshaFosterCourtMember
Costs Subsequent to Acquisition 845us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeshaFosterCourtMember
Gross Carrying Amount, Land 765us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeshaFosterCourtMember
Gross Carrying Amount, Buildings 2,630us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeshaFosterCourtMember
Gross Carrying Amount, Total 3,395us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeshaFosterCourtMember
Accumulated Depreciation 1,684us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WaukeshaFosterCourtMember
River Grove / N. 5th Ave. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,094us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiverGroveNFifthAveMember
Initial Cost, Buildings & Improvements 2,552us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiverGroveNFifthAveMember
Costs Subsequent to Acquisition 564us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiverGroveNFifthAveMember
Gross Carrying Amount, Land 1,034us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiverGroveNFifthAveMember
Gross Carrying Amount, Buildings 3,176us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiverGroveNFifthAveMember
Gross Carrying Amount, Total 4,210us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiverGroveNFifthAveMember
Accumulated Depreciation 2,213us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RiverGroveNFifthAveMember
St. Charles / E. Main St. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 951us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCharlesEMainStMember
Initial Cost, Buildings & Improvements 2,220us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCharlesEMainStMember
Costs Subsequent to Acquisition (134)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCharlesEMainStMember
Gross Carrying Amount, Land 802us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCharlesEMainStMember
Gross Carrying Amount, Buildings 2,235us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCharlesEMainStMember
Gross Carrying Amount, Total 3,037us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCharlesEMainStMember
Accumulated Depreciation 1,655us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StCharlesEMainStMember
Chicago / West 47th St. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 705us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWestFourtySeventhStreetMember
Initial Cost, Buildings & Improvements 1,645us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWestFourtySeventhStreetMember
Costs Subsequent to Acquisition 255us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWestFourtySeventhStreetMember
Gross Carrying Amount, Land 705us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWestFourtySeventhStreetMember
Gross Carrying Amount, Buildings 1,900us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWestFourtySeventhStreetMember
Gross Carrying Amount, Total 2,605us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWestFourtySeventhStreetMember
Accumulated Depreciation 1,242us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoWestFourtySeventhStreetMember
Carol Stream / S. Main Place [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,320us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarolStreamSMainPlaceMember
Initial Cost, Buildings & Improvements 3,079us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarolStreamSMainPlaceMember
Costs Subsequent to Acquisition 512us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarolStreamSMainPlaceMember
Gross Carrying Amount, Land 1,319us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarolStreamSMainPlaceMember
Gross Carrying Amount, Buildings 3,592us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarolStreamSMainPlaceMember
Gross Carrying Amount, Total 4,911us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarolStreamSMainPlaceMember
Accumulated Depreciation 2,413us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarolStreamSMainPlaceMember
Carpentersville /N. Western Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 911us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarpentersvilleNWesternAveMember
Initial Cost, Buildings & Improvements 2,120us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarpentersvilleNWesternAveMember
Costs Subsequent to Acquisition 301us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarpentersvilleNWesternAveMember
Gross Carrying Amount, Land 909us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarpentersvilleNWesternAveMember
Gross Carrying Amount, Buildings 2,423us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarpentersvilleNWesternAveMember
Gross Carrying Amount, Total 3,332us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarpentersvilleNWesternAveMember
Accumulated Depreciation 1,617us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CarpentersvilleNWesternAveMember
Elgin / E. Chicago St. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 570us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElginEChicagoStMember
Initial Cost, Buildings & Improvements 2,163us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElginEChicagoStMember
Costs Subsequent to Acquisition 212us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElginEChicagoStMember
Gross Carrying Amount, Land 570us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElginEChicagoStMember
Gross Carrying Amount, Buildings 2,375us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElginEChicagoStMember
Gross Carrying Amount, Total 2,945us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElginEChicagoStMember
Accumulated Depreciation 1,521us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElginEChicagoStMember
Elgin / Big Timber Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,347us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElginBigTimberRoadMember
Initial Cost, Buildings & Improvements 3,253us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElginBigTimberRoadMember
Costs Subsequent to Acquisition 960us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElginBigTimberRoadMember
Gross Carrying Amount, Land 1,347us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElginBigTimberRoadMember
Gross Carrying Amount, Buildings 4,213us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElginBigTimberRoadMember
Gross Carrying Amount, Total 5,560us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElginBigTimberRoadMember
Accumulated Depreciation 2,891us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ElginBigTimberRoadMember
Chicago / S. Pulaski Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Buildings & Improvements 2,576us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoSPulaskiRoadMember
Costs Subsequent to Acquisition 528us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoSPulaskiRoadMember
Gross Carrying Amount, Buildings 3,104us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoSPulaskiRoadMember
Gross Carrying Amount, Total 3,104us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoSPulaskiRoadMember
Accumulated Depreciation 1,705us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoSPulaskiRoadMember
Aurora / Business 30 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 900us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AuroraBusinessThirtyMember
Initial Cost, Buildings & Improvements 2,097us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AuroraBusinessThirtyMember
Costs Subsequent to Acquisition 370us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AuroraBusinessThirtyMember
Gross Carrying Amount, Land 899us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AuroraBusinessThirtyMember
Gross Carrying Amount, Buildings 2,468us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AuroraBusinessThirtyMember
Gross Carrying Amount, Total 3,367us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AuroraBusinessThirtyMember
Accumulated Depreciation 1,675us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AuroraBusinessThirtyMember
Streamwood / Old Church Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 855us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StreamwoodOldChurchRoadMember
Initial Cost, Buildings & Improvements 1,991us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StreamwoodOldChurchRoadMember
Costs Subsequent to Acquisition 179us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StreamwoodOldChurchRoadMember
Gross Carrying Amount, Land 853us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StreamwoodOldChurchRoadMember
Gross Carrying Amount, Buildings 2,172us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StreamwoodOldChurchRoadMember
Gross Carrying Amount, Total 3,025us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StreamwoodOldChurchRoadMember
Accumulated Depreciation 1,407us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StreamwoodOldChurchRoadMember
Mt. Prospect / Central Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 802us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MtProspectCentralRoadMember
Initial Cost, Buildings & Improvements 1,847us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MtProspectCentralRoadMember
Costs Subsequent to Acquisition 790us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MtProspectCentralRoadMember
Gross Carrying Amount, Land 795us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MtProspectCentralRoadMember
Gross Carrying Amount, Buildings 2,644us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MtProspectCentralRoadMember
Gross Carrying Amount, Total 3,439us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MtProspectCentralRoadMember
Accumulated Depreciation 1,868us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MtProspectCentralRoadMember
Geneva / Gary Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,072us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GenevaGaryAveMember
Initial Cost, Buildings & Improvements 2,501us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GenevaGaryAveMember
Costs Subsequent to Acquisition 342us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GenevaGaryAveMember
Gross Carrying Amount, Land 1,072us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GenevaGaryAveMember
Gross Carrying Amount, Buildings 2,843us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GenevaGaryAveMember
Gross Carrying Amount, Total 3,915us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GenevaGaryAveMember
Accumulated Depreciation 1,901us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GenevaGaryAveMember
Naperville / Lasalle Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 12, 1999
Initial Cost, Land 1,501us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NapervilleLasalleAveMember
Initial Cost, Buildings & Improvements 3,502us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NapervilleLasalleAveMember
Costs Subsequent to Acquisition 212us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NapervilleLasalleAveMember
Gross Carrying Amount, Land 1,501us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NapervilleLasalleAveMember
Gross Carrying Amount, Buildings 3,714us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NapervilleLasalleAveMember
Gross Carrying Amount, Total 5,215us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NapervilleLasalleAveMember
Accumulated Depreciation 2,417us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NapervilleLasalleAveMember
Forest Park [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 31, 1999
Initial Cost, Land 270us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkMember
Initial Cost, Buildings & Improvements 3,378us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkMember
Costs Subsequent to Acquisition 4,742us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkMember
Gross Carrying Amount, Land 270us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkMember
Gross Carrying Amount, Buildings 8,120us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkMember
Gross Carrying Amount, Total 8,390us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkMember
Accumulated Depreciation 5,063us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ForestParkMember
Fresno [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Apr. 01, 1999
Initial Cost, Land 44us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FresnoMember
Initial Cost, Buildings & Improvements 206us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FresnoMember
Costs Subsequent to Acquisition 689us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FresnoMember
Gross Carrying Amount, Land 193us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FresnoMember
Gross Carrying Amount, Buildings 746us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FresnoMember
Gross Carrying Amount, Total 939us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FresnoMember
Accumulated Depreciation 516us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FresnoMember
Stockton [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired May 01, 1999
Initial Cost, Land 151us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StocktonMember
Initial Cost, Buildings & Improvements 402us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StocktonMember
Costs Subsequent to Acquisition 2,168us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StocktonMember
Gross Carrying Amount, Land 590us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StocktonMember
Gross Carrying Amount, Buildings 2,131us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StocktonMember
Gross Carrying Amount, Total 2,721us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StocktonMember
Accumulated Depreciation 1,427us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StocktonMember
Winter Park/N. Semor [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 342us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WinterParkNSemorMember
Initial Cost, Buildings & Improvements 638us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WinterParkNSemorMember
Costs Subsequent to Acquisition 1,241us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WinterParkNSemorMember
Gross Carrying Amount, Land 427us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WinterParkNSemorMember
Gross Carrying Amount, Buildings 1,794us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WinterParkNSemorMember
Gross Carrying Amount, Total 2,221us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WinterParkNSemorMember
Accumulated Depreciation 842us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WinterParkNSemorMember
N. Richland Hills [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 455us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NRichlandHillsMember
Initial Cost, Buildings & Improvements 769us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NRichlandHillsMember
Costs Subsequent to Acquisition 1,308us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NRichlandHillsMember
Gross Carrying Amount, Land 569us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NRichlandHillsMember
Gross Carrying Amount, Buildings 1,963us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NRichlandHillsMember
Gross Carrying Amount, Total 2,532us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NRichlandHillsMember
Accumulated Depreciation 1,026us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NRichlandHillsMember
Rolling Meadows/Lois [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 441us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RollingMeadowsLoisMember
Initial Cost, Buildings & Improvements 849us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RollingMeadowsLoisMember
Costs Subsequent to Acquisition 1,667us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RollingMeadowsLoisMember
Gross Carrying Amount, Land 551us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RollingMeadowsLoisMember
Gross Carrying Amount, Buildings 2,406us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RollingMeadowsLoisMember
Gross Carrying Amount, Total 2,957us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RollingMeadowsLoisMember
Accumulated Depreciation 1,301us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RollingMeadowsLoisMember
Gresham/Burnside [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 354us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreshamBurnsideMember
Initial Cost, Buildings & Improvements 544us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreshamBurnsideMember
Costs Subsequent to Acquisition 973us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreshamBurnsideMember
Gross Carrying Amount, Land 441us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreshamBurnsideMember
Gross Carrying Amount, Buildings 1,430us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreshamBurnsideMember
Gross Carrying Amount, Total 1,871us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreshamBurnsideMember
Accumulated Depreciation 728us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreshamBurnsideMember
Jacksonville/University [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 211us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleUniversityMember
Initial Cost, Buildings & Improvements 741us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleUniversityMember
Costs Subsequent to Acquisition 1,201us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleUniversityMember
Gross Carrying Amount, Land 263us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleUniversityMember
Gross Carrying Amount, Buildings 1,890us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleUniversityMember
Gross Carrying Amount, Total 2,153us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleUniversityMember
Accumulated Depreciation 1,021us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_JacksonvilleUniversityMember
Houston/Highway 6 So. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 751us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHighwaySixSoMember
Initial Cost, Buildings & Improvements 1,006us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHighwaySixSoMember
Costs Subsequent to Acquisition 2,214us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHighwaySixSoMember
Gross Carrying Amount, Land 936us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHighwaySixSoMember
Gross Carrying Amount, Buildings 3,035us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHighwaySixSoMember
Gross Carrying Amount, Total 3,971us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHighwaySixSoMember
Accumulated Depreciation 1,505us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonHighwaySixSoMember
Concord/Arnold [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 827us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ConcordArnoldMember
Initial Cost, Buildings & Improvements 1,553us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ConcordArnoldMember
Costs Subsequent to Acquisition 2,535us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ConcordArnoldMember
Gross Carrying Amount, Land 1,031us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ConcordArnoldMember
Gross Carrying Amount, Buildings 3,884us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ConcordArnoldMember
Gross Carrying Amount, Total 4,915us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ConcordArnoldMember
Accumulated Depreciation 1,999us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ConcordArnoldMember
Rockville/Gude Drive [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 602us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockvilleGudeDriveMember
Initial Cost, Buildings & Improvements 768us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockvilleGudeDriveMember
Costs Subsequent to Acquisition 7,381us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockvilleGudeDriveMember
Gross Carrying Amount, Land 751us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockvilleGudeDriveMember
Gross Carrying Amount, Buildings 8,000us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockvilleGudeDriveMember
Gross Carrying Amount, Total 8,751us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockvilleGudeDriveMember
Accumulated Depreciation 2,970us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockvilleGudeDriveMember
Bradenton/Cortez Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 476us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BradentonCortezRoadMember
Initial Cost, Buildings & Improvements 885us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BradentonCortezRoadMember
Costs Subsequent to Acquisition 1,427us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BradentonCortezRoadMember
Gross Carrying Amount, Land 588us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BradentonCortezRoadMember
Gross Carrying Amount, Buildings 2,200us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BradentonCortezRoadMember
Gross Carrying Amount, Total 2,788us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BradentonCortezRoadMember
Accumulated Depreciation 1,156us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BradentonCortezRoadMember
San Antonio/Nw Loop [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 511us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanAntonioNwLoopMember
Initial Cost, Buildings & Improvements 786us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanAntonioNwLoopMember
Costs Subsequent to Acquisition 1,428us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanAntonioNwLoopMember
Gross Carrying Amount, Land 638us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanAntonioNwLoopMember
Gross Carrying Amount, Buildings 2,087us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanAntonioNwLoopMember
Gross Carrying Amount, Total 2,725us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanAntonioNwLoopMember
Accumulated Depreciation 1,045us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanAntonioNwLoopMember
Anaheim / La Palma [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 1,378us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AnaheimLaPalmaMember
Initial Cost, Buildings & Improvements 851us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AnaheimLaPalmaMember
Costs Subsequent to Acquisition 1,624us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AnaheimLaPalmaMember
Gross Carrying Amount, Land 1,720us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AnaheimLaPalmaMember
Gross Carrying Amount, Buildings 2,133us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AnaheimLaPalmaMember
Gross Carrying Amount, Total 3,853us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AnaheimLaPalmaMember
Accumulated Depreciation 1,036us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AnaheimLaPalmaMember
Spring Valley/Sweetwater [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 271us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpringValleySweetwaterMember
Initial Cost, Buildings & Improvements 380us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpringValleySweetwaterMember
Costs Subsequent to Acquisition 5,528us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpringValleySweetwaterMember
Gross Carrying Amount, Land 356us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpringValleySweetwaterMember
Gross Carrying Amount, Buildings 5,823us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpringValleySweetwaterMember
Gross Carrying Amount, Total 6,179us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpringValleySweetwaterMember
Accumulated Depreciation 2,390us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SpringValleySweetwaterMember
Ft. Myers/Tamiami [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 948us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtMyersTamiamiMember
Initial Cost, Buildings & Improvements 962us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtMyersTamiamiMember
Costs Subsequent to Acquisition 1,976us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtMyersTamiamiMember
Gross Carrying Amount, Land 1,184us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtMyersTamiamiMember
Gross Carrying Amount, Buildings 2,702us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtMyersTamiamiMember
Gross Carrying Amount, Total 3,886us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtMyersTamiamiMember
Accumulated Depreciation 1,344us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtMyersTamiamiMember
Littleton/Centennial [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 421us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LittletonCentennialMember
Initial Cost, Buildings & Improvements 804us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LittletonCentennialMember
Costs Subsequent to Acquisition 1,262us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LittletonCentennialMember
Gross Carrying Amount, Land 526us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LittletonCentennialMember
Gross Carrying Amount, Buildings 1,961us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LittletonCentennialMember
Gross Carrying Amount, Total 2,487us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LittletonCentennialMember
Accumulated Depreciation 1,055us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LittletonCentennialMember
Newark/Cedar Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 729us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewarkCedarBlvdMember
Initial Cost, Buildings & Improvements 971us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewarkCedarBlvdMember
Costs Subsequent to Acquisition 1,680us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewarkCedarBlvdMember
Gross Carrying Amount, Land 910us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewarkCedarBlvdMember
Gross Carrying Amount, Buildings 2,470us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewarkCedarBlvdMember
Gross Carrying Amount, Total 3,380us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewarkCedarBlvdMember
Accumulated Depreciation 1,350us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NewarkCedarBlvdMember
Falls Church/Columbia [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 901us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FallsChurchColumbiaMember
Initial Cost, Buildings & Improvements 975us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FallsChurchColumbiaMember
Costs Subsequent to Acquisition 1,600us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FallsChurchColumbiaMember
Gross Carrying Amount, Land 1,126us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FallsChurchColumbiaMember
Gross Carrying Amount, Buildings 2,350us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FallsChurchColumbiaMember
Gross Carrying Amount, Total 3,476us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FallsChurchColumbiaMember
Accumulated Depreciation 1,210us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FallsChurchColumbiaMember
Fairfax / Lee Highway [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 586us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FairfaxLeeHighwayMember
Initial Cost, Buildings & Improvements 1,078us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FairfaxLeeHighwayMember
Costs Subsequent to Acquisition 1,673us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FairfaxLeeHighwayMember
Gross Carrying Amount, Land 732us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FairfaxLeeHighwayMember
Gross Carrying Amount, Buildings 2,605us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FairfaxLeeHighwayMember
Gross Carrying Amount, Total 3,337us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FairfaxLeeHighwayMember
Accumulated Depreciation 1,403us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FairfaxLeeHighwayMember
Wheat Ridge / W. 44th [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 480us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WheatRidgeWFortyFourthMember
Initial Cost, Buildings & Improvements 789us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WheatRidgeWFortyFourthMember
Costs Subsequent to Acquisition 1,259us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WheatRidgeWFortyFourthMember
Gross Carrying Amount, Land 599us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WheatRidgeWFortyFourthMember
Gross Carrying Amount, Buildings 1,929us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WheatRidgeWFortyFourthMember
Gross Carrying Amount, Total 2,528us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WheatRidgeWFortyFourthMember
Accumulated Depreciation 1,070us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WheatRidgeWFortyFourthMember
Huntington Bch /Gothman '99 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 952us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HuntingtonBchGothmanNinetyNineMember
Initial Cost, Buildings & Improvements 890us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HuntingtonBchGothmanNinetyNineMember
Costs Subsequent to Acquisition 1,607us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HuntingtonBchGothmanNinetyNineMember
Gross Carrying Amount, Land 1,189us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HuntingtonBchGothmanNinetyNineMember
Gross Carrying Amount, Buildings 2,260us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HuntingtonBchGothmanNinetyNineMember
Gross Carrying Amount, Total 3,449us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HuntingtonBchGothmanNinetyNineMember
Accumulated Depreciation 1,208us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HuntingtonBchGothmanNinetyNineMember
Fort Worth/McCart [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 372us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortWorthMccartMember
Initial Cost, Buildings & Improvements 942us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortWorthMccartMember
Costs Subsequent to Acquisition 998us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortWorthMccartMember
Gross Carrying Amount, Land 464us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortWorthMccartMember
Gross Carrying Amount, Buildings 1,848us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortWorthMccartMember
Gross Carrying Amount, Total 2,312us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortWorthMccartMember
Accumulated Depreciation 839us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FortWorthMccartMember
San Diego/Clairemont [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 1,601us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanDiegoClairemontMember
Initial Cost, Buildings & Improvements 2,035us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanDiegoClairemontMember
Costs Subsequent to Acquisition 2,720us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanDiegoClairemontMember
Gross Carrying Amount, Land 1,999us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanDiegoClairemontMember
Gross Carrying Amount, Buildings 4,357us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanDiegoClairemontMember
Gross Carrying Amount, Total 6,356us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanDiegoClairemontMember
Accumulated Depreciation 2,336us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanDiegoClairemontMember
Houston/Millridge N. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 1,160us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMillridgeNMember
Initial Cost, Buildings & Improvements 1,983us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMillridgeNMember
Costs Subsequent to Acquisition 4,466us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMillridgeNMember
Gross Carrying Amount, Land 1,449us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMillridgeNMember
Gross Carrying Amount, Buildings 6,160us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMillridgeNMember
Gross Carrying Amount, Total 7,609us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMillridgeNMember
Accumulated Depreciation 3,632us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMillridgeNMember
Woodbridge/Jefferson [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 840us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodbridgeJeffersonMember
Initial Cost, Buildings & Improvements 1,689us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodbridgeJeffersonMember
Costs Subsequent to Acquisition 1,888us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodbridgeJeffersonMember
Gross Carrying Amount, Land 1,048us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodbridgeJeffersonMember
Gross Carrying Amount, Buildings 3,369us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodbridgeJeffersonMember
Gross Carrying Amount, Total 4,417us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodbridgeJeffersonMember
Accumulated Depreciation 1,455us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodbridgeJeffersonMember
Montainside [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 1,260us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MontainsideMember
Initial Cost, Buildings & Improvements 1,237us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MontainsideMember
Costs Subsequent to Acquisition 4,513us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MontainsideMember
Gross Carrying Amount, Land 1,595us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MontainsideMember
Gross Carrying Amount, Buildings 5,415us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MontainsideMember
Gross Carrying Amount, Total 7,010us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MontainsideMember
Accumulated Depreciation 2,460us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MontainsideMember
Woodbridge/Davis [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 1,796us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodbridgeDavisMember
Initial Cost, Buildings & Improvements 1,623us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodbridgeDavisMember
Costs Subsequent to Acquisition 2,834us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodbridgeDavisMember
Gross Carrying Amount, Land 2,243us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodbridgeDavisMember
Gross Carrying Amount, Buildings 4,010us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodbridgeDavisMember
Gross Carrying Amount, Total 6,253us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodbridgeDavisMember
Accumulated Depreciation 2,314us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_WoodbridgeDavisMember
Huntington Beach '99 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 1,026us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HuntingtonBeachNinetyNineMember
Initial Cost, Buildings & Improvements 1,437us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HuntingtonBeachNinetyNineMember
Costs Subsequent to Acquisition 1,719us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HuntingtonBeachNinetyNineMember
Gross Carrying Amount, Land 1,282us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HuntingtonBeachNinetyNineMember
Gross Carrying Amount, Buildings 2,900us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HuntingtonBeachNinetyNineMember
Gross Carrying Amount, Total 4,182us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HuntingtonBeachNinetyNineMember
Accumulated Depreciation 1,574us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HuntingtonBeachNinetyNineMember
Edison / Old Post Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 498us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EdisonOldPostRdMember
Initial Cost, Buildings & Improvements 1,267us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EdisonOldPostRdMember
Costs Subsequent to Acquisition 1,707us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EdisonOldPostRdMember
Gross Carrying Amount, Land 621us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EdisonOldPostRdMember
Gross Carrying Amount, Buildings 2,851us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EdisonOldPostRdMember
Gross Carrying Amount, Total 3,472us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EdisonOldPostRdMember
Accumulated Depreciation 1,613us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EdisonOldPostRdMember
Northridge/Parthenia [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 1,848us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthridgePartheniaMember
Initial Cost, Buildings & Improvements 1,486us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthridgePartheniaMember
Costs Subsequent to Acquisition 2,202us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthridgePartheniaMember
Gross Carrying Amount, Land 2,308us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthridgePartheniaMember
Gross Carrying Amount, Buildings 3,228us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthridgePartheniaMember
Gross Carrying Amount, Total 5,536us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthridgePartheniaMember
Accumulated Depreciation 1,775us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthridgePartheniaMember
Brick Township/Brick [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 590us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrickTownshipBrickMember
Initial Cost, Buildings & Improvements 1,431us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrickTownshipBrickMember
Costs Subsequent to Acquisition 1,814us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrickTownshipBrickMember
Gross Carrying Amount, Land 736us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrickTownshipBrickMember
Gross Carrying Amount, Buildings 3,099us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrickTownshipBrickMember
Gross Carrying Amount, Total 3,835us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrickTownshipBrickMember
Accumulated Depreciation 1,682us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrickTownshipBrickMember
Stone Mountain/Rock [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 1,233us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StoneMountainRockMember
Initial Cost, Buildings & Improvements 288us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StoneMountainRockMember
Costs Subsequent to Acquisition 1,488us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StoneMountainRockMember
Gross Carrying Amount, Land 1,540us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StoneMountainRockMember
Gross Carrying Amount, Buildings 1,469us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StoneMountainRockMember
Gross Carrying Amount, Total 3,009us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StoneMountainRockMember
Accumulated Depreciation 833us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StoneMountainRockMember
Hyattsville [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 768us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HyattsvilleMember
Initial Cost, Buildings & Improvements 2,186us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HyattsvilleMember
Costs Subsequent to Acquisition 2,447us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HyattsvilleMember
Gross Carrying Amount, Land 959us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HyattsvilleMember
Gross Carrying Amount, Buildings 4,442us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HyattsvilleMember
Gross Carrying Amount, Total 5,401us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HyattsvilleMember
Accumulated Depreciation 2,552us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HyattsvilleMember
Union City / Alvarado [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 992us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_UnionCityAlvaradoMember
Initial Cost, Buildings & Improvements 1,776us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_UnionCityAlvaradoMember
Costs Subsequent to Acquisition 2,059us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_UnionCityAlvaradoMember
Gross Carrying Amount, Land 1,239us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_UnionCityAlvaradoMember
Gross Carrying Amount, Buildings 3,588us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_UnionCityAlvaradoMember
Gross Carrying Amount, Total 4,827us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_UnionCityAlvaradoMember
Accumulated Depreciation 2,031us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_UnionCityAlvaradoMember
Oak Park / Greenfield [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 621us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakParkGreenfieldMember
Initial Cost, Buildings & Improvements 1,735us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakParkGreenfieldMember
Costs Subsequent to Acquisition 1,903us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakParkGreenfieldMember
Gross Carrying Amount, Land 774us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakParkGreenfieldMember
Gross Carrying Amount, Buildings 3,485us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakParkGreenfieldMember
Gross Carrying Amount, Total 4,259us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakParkGreenfieldMember
Accumulated Depreciation 2,028us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakParkGreenfieldMember
Tujunga/Foothill Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 1999
Initial Cost, Land 1,746us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TujungaFoothillBlvdMember
Initial Cost, Buildings & Improvements 2,383us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TujungaFoothillBlvdMember
Costs Subsequent to Acquisition 3,193us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TujungaFoothillBlvdMember
Gross Carrying Amount, Land 2,180us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TujungaFoothillBlvdMember
Gross Carrying Amount, Buildings 5,142us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TujungaFoothillBlvdMember
Gross Carrying Amount, Total 7,322us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TujungaFoothillBlvdMember
Accumulated Depreciation 2,665us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TujungaFoothillBlvdMember
Pantego/W. Pioneer Pkwy [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 01, 1999
Initial Cost, Land 432us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PantegoWPioneerPkwyMember
Initial Cost, Buildings & Improvements 1,228us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PantegoWPioneerPkwyMember
Costs Subsequent to Acquisition 296us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PantegoWPioneerPkwyMember
Gross Carrying Amount, Land 432us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PantegoWPioneerPkwyMember
Gross Carrying Amount, Buildings 1,524us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PantegoWPioneerPkwyMember
Gross Carrying Amount, Total 1,956us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PantegoWPioneerPkwyMember
Accumulated Depreciation 879us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PantegoWPioneerPkwyMember
Nashville/Lafayette St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 01, 1999
Initial Cost, Land 486us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleLafayetteStMember
Initial Cost, Buildings & Improvements 1,135us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleLafayetteStMember
Costs Subsequent to Acquisition 979us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleLafayetteStMember
Gross Carrying Amount, Land 486us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleLafayetteStMember
Gross Carrying Amount, Buildings 2,114us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleLafayetteStMember
Gross Carrying Amount, Total 2,600us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleLafayetteStMember
Accumulated Depreciation 1,638us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleLafayetteStMember
Nashville/Metroplex Dr [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 01, 1999
Initial Cost, Land 380us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleMetroplexDrMember
Initial Cost, Buildings & Improvements 886us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleMetroplexDrMember
Costs Subsequent to Acquisition 441us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleMetroplexDrMember
Gross Carrying Amount, Land 379us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleMetroplexDrMember
Gross Carrying Amount, Buildings 1,328us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleMetroplexDrMember
Gross Carrying Amount, Total 1,707us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleMetroplexDrMember
Accumulated Depreciation 942us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleMetroplexDrMember
Madison / Myatt Dr [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 01, 1999
Initial Cost, Land 441us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MadisonMyattDrMember
Initial Cost, Buildings & Improvements 1,028us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MadisonMyattDrMember
Costs Subsequent to Acquisition 305us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MadisonMyattDrMember
Gross Carrying Amount, Land 441us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MadisonMyattDrMember
Gross Carrying Amount, Buildings 1,333us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MadisonMyattDrMember
Gross Carrying Amount, Total 1,774us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MadisonMyattDrMember
Accumulated Depreciation 869us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MadisonMyattDrMember
Hixson / Highway 153 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 01, 1999
Initial Cost, Land 488us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HixsonHighway153Member
Initial Cost, Buildings & Improvements 1,138us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HixsonHighway153Member
Costs Subsequent to Acquisition 568us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HixsonHighway153Member
Gross Carrying Amount, Land 487us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HixsonHighway153Member
Gross Carrying Amount, Buildings 1,707us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HixsonHighway153Member
Gross Carrying Amount, Total 2,194us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HixsonHighway153Member
Accumulated Depreciation 1,193us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HixsonHighway153Member
Hixson / Gadd Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 01, 1999
Initial Cost, Land 207us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HixsonGaddRdMember
Initial Cost, Buildings & Improvements 484us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HixsonGaddRdMember
Costs Subsequent to Acquisition 625us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HixsonGaddRdMember
Gross Carrying Amount, Land 207us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HixsonGaddRdMember
Gross Carrying Amount, Buildings 1,109us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HixsonGaddRdMember
Gross Carrying Amount, Total 1,316us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HixsonGaddRdMember
Accumulated Depreciation 890us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HixsonGaddRdMember
Red Bank / Harding Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 01, 1999
Initial Cost, Land 452us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RedBankHardingRdMember
Initial Cost, Buildings & Improvements 1,056us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RedBankHardingRdMember
Costs Subsequent to Acquisition 423us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RedBankHardingRdMember
Gross Carrying Amount, Land 452us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RedBankHardingRdMember
Gross Carrying Amount, Buildings 1,479us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RedBankHardingRdMember
Gross Carrying Amount, Total 1,931us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RedBankHardingRdMember
Accumulated Depreciation 1,064us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RedBankHardingRdMember
Nashville/Welshwood Dr [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 01, 1999
Initial Cost, Land 934us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleWelshwoodDrMember
Initial Cost, Buildings & Improvements 2,179us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleWelshwoodDrMember
Costs Subsequent to Acquisition 525us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleWelshwoodDrMember
Gross Carrying Amount, Land 934us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleWelshwoodDrMember
Gross Carrying Amount, Buildings 2,704us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleWelshwoodDrMember
Gross Carrying Amount, Total 3,638us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleWelshwoodDrMember
Accumulated Depreciation 1,827us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleWelshwoodDrMember
Madison/Williams Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 01, 1999
Initial Cost, Land 1,318us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MadisonWilliamsAveMember
Initial Cost, Buildings & Improvements 3,076us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MadisonWilliamsAveMember
Costs Subsequent to Acquisition 1,362us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MadisonWilliamsAveMember
Gross Carrying Amount, Land 1,318us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MadisonWilliamsAveMember
Gross Carrying Amount, Buildings 4,438us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MadisonWilliamsAveMember
Gross Carrying Amount, Total 5,756us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MadisonWilliamsAveMember
Accumulated Depreciation 3,110us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MadisonWilliamsAveMember
Nashville/Mcnally Dr [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 01, 1999
Initial Cost, Land 884us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleMcnallyDrMember
Initial Cost, Buildings & Improvements 2,062us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleMcnallyDrMember
Costs Subsequent to Acquisition 1,033us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleMcnallyDrMember
Gross Carrying Amount, Land 884us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleMcnallyDrMember
Gross Carrying Amount, Buildings 3,095us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleMcnallyDrMember
Gross Carrying Amount, Total 3,979us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleMcnallyDrMember
Accumulated Depreciation 2,238us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NashvilleMcnallyDrMember
Hermitage/Central Ct [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 01, 1999
Initial Cost, Land 646us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HermitageCentralCtMember
Initial Cost, Buildings & Improvements 1,508us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HermitageCentralCtMember
Costs Subsequent to Acquisition 352us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HermitageCentralCtMember
Gross Carrying Amount, Land 646us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HermitageCentralCtMember
Gross Carrying Amount, Buildings 1,860us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HermitageCentralCtMember
Gross Carrying Amount, Total 2,506us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HermitageCentralCtMember
Accumulated Depreciation 1,246us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HermitageCentralCtMember
Antioch/Cane Ridge Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 01, 1999
Initial Cost, Land 353us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AntiochCaneRidgeRdMember
Initial Cost, Buildings & Improvements 823us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AntiochCaneRidgeRdMember
Costs Subsequent to Acquisition 600us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AntiochCaneRidgeRdMember
Gross Carrying Amount, Land 352us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AntiochCaneRidgeRdMember
Gross Carrying Amount, Buildings 1,424us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AntiochCaneRidgeRdMember
Gross Carrying Amount, Total 1,776us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AntiochCaneRidgeRdMember
Accumulated Depreciation 1,019us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AntiochCaneRidgeRdMember
Charlotte / Ashley Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 01, 1999
Initial Cost, Land 664us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteAshleyRoadMember
Initial Cost, Buildings & Improvements 1,551us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteAshleyRoadMember
Costs Subsequent to Acquisition 309us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteAshleyRoadMember
Gross Carrying Amount, Land 651us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteAshleyRoadMember
Gross Carrying Amount, Buildings 1,873us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteAshleyRoadMember
Gross Carrying Amount, Total 2,524us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteAshleyRoadMember
Accumulated Depreciation 1,268us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteAshleyRoadMember
Raleigh / Capital Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 01, 1999
Initial Cost, Land 927us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighCapitalBlvdMember
Initial Cost, Buildings & Improvements 2,166us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighCapitalBlvdMember
Costs Subsequent to Acquisition 1,278us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighCapitalBlvdMember
Gross Carrying Amount, Land 908us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighCapitalBlvdMember
Gross Carrying Amount, Buildings 3,463us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighCapitalBlvdMember
Gross Carrying Amount, Total 4,371us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighCapitalBlvdMember
Accumulated Depreciation 1,752us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighCapitalBlvdMember
Charlotte / South Blvd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 01, 1999
Initial Cost, Land 734us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteSouthBlvdMember
Initial Cost, Buildings & Improvements 1,715us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteSouthBlvdMember
Costs Subsequent to Acquisition 223us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteSouthBlvdMember
Gross Carrying Amount, Land 719us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteSouthBlvdMember
Gross Carrying Amount, Buildings 1,953us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteSouthBlvdMember
Gross Carrying Amount, Total 2,672us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteSouthBlvdMember
Accumulated Depreciation 1,282us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CharlotteSouthBlvdMember
Greensboro/W.Market St. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 01, 1999
Initial Cost, Land 603us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreensboroWMarketStMember
Initial Cost, Buildings & Improvements 1,409us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreensboroWMarketStMember
Costs Subsequent to Acquisition 181us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreensboroWMarketStMember
Gross Carrying Amount, Land 591us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreensboroWMarketStMember
Gross Carrying Amount, Buildings 1,602us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreensboroWMarketStMember
Gross Carrying Amount, Total 2,193us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreensboroWMarketStMember
Accumulated Depreciation 1,027us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GreensboroWMarketStMember
Belmont / O'neill Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 08, 1999
Initial Cost, Land 869us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BelmontONeillAveMember
Initial Cost, Buildings & Improvements 4,659us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BelmontONeillAveMember
Costs Subsequent to Acquisition 251us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BelmontONeillAveMember
Gross Carrying Amount, Land 878us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BelmontONeillAveMember
Gross Carrying Amount, Buildings 4,901us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BelmontONeillAveMember
Gross Carrying Amount, Total 5,779us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BelmontONeillAveMember
Accumulated Depreciation 3,162us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BelmontONeillAveMember
Matthews [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Oct. 11, 1999
Initial Cost, Land 937us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MatthewsMember
Initial Cost, Buildings & Improvements 3,165us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MatthewsMember
Costs Subsequent to Acquisition 2,008us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MatthewsMember
Gross Carrying Amount, Land 1,500us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MatthewsMember
Gross Carrying Amount, Buildings 4,610us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MatthewsMember
Gross Carrying Amount, Total 6,110us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MatthewsMember
Accumulated Depreciation 2,530us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MatthewsMember
Poplar, Memphis [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Nov. 15, 1999
Initial Cost, Land 1,631us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PoplarMemphisMember
Initial Cost, Buildings & Improvements 3,093us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PoplarMemphisMember
Costs Subsequent to Acquisition 2,636us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PoplarMemphisMember
Gross Carrying Amount, Land 2,377us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PoplarMemphisMember
Gross Carrying Amount, Buildings 4,983us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PoplarMemphisMember
Gross Carrying Amount, Total 7,360us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PoplarMemphisMember
Accumulated Depreciation 2,663us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PoplarMemphisMember
Dallas / Swiss Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 17, 1999
Initial Cost, Land 1,862us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasSwissAveMember
Initial Cost, Buildings & Improvements 4,344us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasSwissAveMember
Costs Subsequent to Acquisition 529us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasSwissAveMember
Gross Carrying Amount, Land 1,878us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasSwissAveMember
Gross Carrying Amount, Buildings 4,857us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasSwissAveMember
Gross Carrying Amount, Total 6,735us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasSwissAveMember
Accumulated Depreciation 3,172us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_DallasSwissAveMember
Oak Park/Greenfield Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 30, 1999
Initial Cost, Land 1,184us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakParkGreenfieldRdMember
Initial Cost, Buildings & Improvements 3,685us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakParkGreenfieldRdMember
Costs Subsequent to Acquisition 212us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakParkGreenfieldRdMember
Gross Carrying Amount, Land 1,196us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakParkGreenfieldRdMember
Gross Carrying Amount, Buildings 3,885us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakParkGreenfieldRdMember
Gross Carrying Amount, Total 5,081us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakParkGreenfieldRdMember
Accumulated Depreciation 2,444us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OakParkGreenfieldRdMember
Santa Anna [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 30, 1999
Initial Cost, Land 2,657us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaAnnaMember
Initial Cost, Buildings & Improvements 3,293us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaAnnaMember
Costs Subsequent to Acquisition 3,697us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaAnnaMember
Gross Carrying Amount, Land 3,704us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaAnnaMember
Gross Carrying Amount, Buildings 5,943us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaAnnaMember
Gross Carrying Amount, Total 9,647us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaAnnaMember
Accumulated Depreciation 3,077us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaAnnaMember
Hanover Park [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 21, 2000
Initial Cost, Land 262us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HanoverParkMember
Initial Cost, Buildings & Improvements 3,104us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HanoverParkMember
Costs Subsequent to Acquisition 126us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HanoverParkMember
Gross Carrying Amount, Land 256us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HanoverParkMember
Gross Carrying Amount, Buildings 3,236us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HanoverParkMember
Gross Carrying Amount, Total 3,492us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HanoverParkMember
Accumulated Depreciation 1,945us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HanoverParkMember
Memphis / N.Germantwn Pkwy [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 25, 2000
Initial Cost, Land 884us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisNGermantwnPkwyMember
Initial Cost, Buildings & Improvements 3,024us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisNGermantwnPkwyMember
Costs Subsequent to Acquisition 1,616us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisNGermantwnPkwyMember
Gross Carrying Amount, Land 1,301us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisNGermantwnPkwyMember
Gross Carrying Amount, Buildings 4,223us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisNGermantwnPkwyMember
Gross Carrying Amount, Total 5,524us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisNGermantwnPkwyMember
Accumulated Depreciation 2,370us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MemphisNGermantwnPkwyMember
Rowland Heights/Walnut [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 31, 2000
Initial Cost, Land 681us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RowlandHeightsWalnutMember
Initial Cost, Buildings & Improvements 1,589us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RowlandHeightsWalnutMember
Costs Subsequent to Acquisition 200us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RowlandHeightsWalnutMember
Gross Carrying Amount, Land 687us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RowlandHeightsWalnutMember
Gross Carrying Amount, Buildings 1,783us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RowlandHeightsWalnutMember
Gross Carrying Amount, Total 2,470us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RowlandHeightsWalnutMember
Accumulated Depreciation 1,119us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RowlandHeightsWalnutMember
Lewisville / Justin Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Feb. 08, 2000
Initial Cost, Land 529us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LewisvilleJustinRdMember
Initial Cost, Buildings & Improvements 2,919us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LewisvilleJustinRdMember
Costs Subsequent to Acquisition 4,396us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LewisvilleJustinRdMember
Gross Carrying Amount, Land 1,679us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LewisvilleJustinRdMember
Gross Carrying Amount, Buildings 6,165us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LewisvilleJustinRdMember
Gross Carrying Amount, Total 7,844us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LewisvilleJustinRdMember
Accumulated Depreciation 3,052us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LewisvilleJustinRdMember
Plano / Avenue K [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Feb. 28, 2000
Initial Cost, Land 2,064us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PlanoAvenueKMember
Initial Cost, Buildings & Improvements 10,407us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PlanoAvenueKMember
Costs Subsequent to Acquisition 3,432us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PlanoAvenueKMember
Gross Carrying Amount, Land 1,220us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PlanoAvenueKMember
Gross Carrying Amount, Buildings 14,683us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PlanoAvenueKMember
Gross Carrying Amount, Total 15,903us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PlanoAvenueKMember
Accumulated Depreciation 9,627us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PlanoAvenueKMember
Hyattsville/Edmonson [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Apr. 01, 2000
Initial Cost, Land 1,036us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HyattsvilleEdmonsonMember
Initial Cost, Buildings & Improvements 2,657us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HyattsvilleEdmonsonMember
Costs Subsequent to Acquisition 212us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HyattsvilleEdmonsonMember
Gross Carrying Amount, Land 1,036us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HyattsvilleEdmonsonMember
Gross Carrying Amount, Buildings 2,869us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HyattsvilleEdmonsonMember
Gross Carrying Amount, Total 3,905us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HyattsvilleEdmonsonMember
Accumulated Depreciation 1,748us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HyattsvilleEdmonsonMember
St.Louis/Ellisville Twn Centre [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Apr. 29, 2000
Initial Cost, Land 765us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisEllisvilleTwnCentreMember
Initial Cost, Buildings & Improvements 4,377us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisEllisvilleTwnCentreMember
Costs Subsequent to Acquisition 2,096us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisEllisvilleTwnCentreMember
Gross Carrying Amount, Land 1,311us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisEllisvilleTwnCentreMember
Gross Carrying Amount, Buildings 5,927us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisEllisvilleTwnCentreMember
Gross Carrying Amount, Total 7,238us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisEllisvilleTwnCentreMember
Accumulated Depreciation 3,303us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisEllisvilleTwnCentreMember
Mill Valley [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired May 02, 2000
Initial Cost, Land 1,412us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillValleyMember
Initial Cost, Buildings & Improvements 3,294us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillValleyMember
Costs Subsequent to Acquisition (250)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillValleyMember
Gross Carrying Amount, Land 1,283us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillValleyMember
Gross Carrying Amount, Buildings 3,173us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillValleyMember
Gross Carrying Amount, Total 4,456us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillValleyMember
Accumulated Depreciation 1,988us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MillValleyMember
Culver City [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired May 02, 2000
Initial Cost, Land 2,439us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CulverCityMember
Initial Cost, Buildings & Improvements 5,689us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CulverCityMember
Costs Subsequent to Acquisition 6,435us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CulverCityMember
Gross Carrying Amount, Land 2,221us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CulverCityMember
Gross Carrying Amount, Buildings 12,342us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CulverCityMember
Gross Carrying Amount, Total 14,563us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CulverCityMember
Accumulated Depreciation 6,911us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CulverCityMember
Phoenix/N. 35th Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired May 26, 2000
Initial Cost, Land 868us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhoenixN35thAveMember
Initial Cost, Buildings & Improvements 2,967us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhoenixN35thAveMember
Costs Subsequent to Acquisition 167us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhoenixN35thAveMember
Gross Carrying Amount, Land 867us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhoenixN35thAveMember
Gross Carrying Amount, Buildings 3,135us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhoenixN35thAveMember
Gross Carrying Amount, Total 4,002us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhoenixN35thAveMember
Accumulated Depreciation 1,087us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhoenixN35thAveMember
Mount Sinai / Route 25a [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 05, 2000
Initial Cost, Land 950us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MountSinaiRoute25aMember
Initial Cost, Buildings & Improvements 3,338us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MountSinaiRoute25aMember
Costs Subsequent to Acquisition 2,315us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MountSinaiRoute25aMember
Gross Carrying Amount, Land 1,599us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MountSinaiRoute25aMember
Gross Carrying Amount, Buildings 5,004us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MountSinaiRoute25aMember
Gross Carrying Amount, Total 6,603us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MountSinaiRoute25aMember
Accumulated Depreciation 2,662us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MountSinaiRoute25aMember
Pinellas Park [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 15, 2000
Initial Cost, Land 526us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PinellasParkMember
Initial Cost, Buildings & Improvements 2,247us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PinellasParkMember
Costs Subsequent to Acquisition 1,466us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PinellasParkMember
Gross Carrying Amount, Land 887us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PinellasParkMember
Gross Carrying Amount, Buildings 3,352us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PinellasParkMember
Gross Carrying Amount, Total 4,239us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PinellasParkMember
Accumulated Depreciation 1,724us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PinellasParkMember
San Antonio/Broadway St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 30, 2000
Initial Cost, Land 1,131us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanAntonioBroadwayStMember
Initial Cost, Buildings & Improvements 4,558us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanAntonioBroadwayStMember
Costs Subsequent to Acquisition 1,465us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanAntonioBroadwayStMember
Gross Carrying Amount, Land 1,130us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanAntonioBroadwayStMember
Gross Carrying Amount, Buildings 6,024us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanAntonioBroadwayStMember
Gross Carrying Amount, Total 7,154us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanAntonioBroadwayStMember
Accumulated Depreciation 3,480us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SanAntonioBroadwayStMember
Lincolnwood [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 13, 2000
Initial Cost, Land 1,598us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LincolnwoodMember
Initial Cost, Buildings & Improvements 3,727us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LincolnwoodMember
Costs Subsequent to Acquisition 418us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LincolnwoodMember
Gross Carrying Amount, Land 1,613us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LincolnwoodMember
Gross Carrying Amount, Buildings 4,130us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LincolnwoodMember
Gross Carrying Amount, Total 5,743us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LincolnwoodMember
Accumulated Depreciation 2,661us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LincolnwoodMember
La Palco/New Orleans [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 17, 2000
Initial Cost, Land 1,023us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaPalcoNewOrleansMember
Initial Cost, Buildings & Improvements 3,204us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaPalcoNewOrleansMember
Costs Subsequent to Acquisition 2,094us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaPalcoNewOrleansMember
Gross Carrying Amount, Land 1,609us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaPalcoNewOrleansMember
Gross Carrying Amount, Buildings 4,712us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaPalcoNewOrleansMember
Gross Carrying Amount, Total 6,321us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaPalcoNewOrleansMember
Accumulated Depreciation 2,442us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LaPalcoNewOrleansMember
Tracy/1615& 1650 W.11th S [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 29, 2000
Initial Cost, Land 1,745us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Tracy16151650W11thSMember
Initial Cost, Buildings & Improvements 4,530us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Tracy16151650W11thSMember
Costs Subsequent to Acquisition 395us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Tracy16151650W11thSMember
Gross Carrying Amount, Land 1,761us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Tracy16151650W11thSMember
Gross Carrying Amount, Buildings 4,909us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Tracy16151650W11thSMember
Gross Carrying Amount, Total 6,670us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Tracy16151650W11thSMember
Accumulated Depreciation 2,963us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Tracy16151650W11thSMember
Pineville [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Aug. 01, 2000
Initial Cost, Land 2,197us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PinevilleMember
Initial Cost, Buildings & Improvements 3,417us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PinevilleMember
Costs Subsequent to Acquisition 2,669us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PinevilleMember
Gross Carrying Amount, Land 2,965us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PinevilleMember
Gross Carrying Amount, Buildings 5,318us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PinevilleMember
Gross Carrying Amount, Total 8,283us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PinevilleMember
Accumulated Depreciation 2,826us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PinevilleMember
Morris Plains [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Aug. 23, 2000
Initial Cost, Land 1,501us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MorrisPlainsMember
Initial Cost, Buildings & Improvements 4,300us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MorrisPlainsMember
Costs Subsequent to Acquisition 4,363us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MorrisPlainsMember
Gross Carrying Amount, Land 2,719us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MorrisPlainsMember
Gross Carrying Amount, Buildings 7,445us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MorrisPlainsMember
Gross Carrying Amount, Total 10,164us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MorrisPlainsMember
Accumulated Depreciation 3,662us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MorrisPlainsMember
Florissant/New Halls Fry [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Aug. 31, 2000
Initial Cost, Land 800us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNewHallsFryMember
Initial Cost, Buildings & Improvements 4,225us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNewHallsFryMember
Costs Subsequent to Acquisition 240us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNewHallsFryMember
Gross Carrying Amount, Land 807us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNewHallsFryMember
Gross Carrying Amount, Buildings 4,458us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNewHallsFryMember
Gross Carrying Amount, Total 5,265us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNewHallsFryMember
Accumulated Depreciation 2,696us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FlorissantNewHallsFryMember
Orange, CA [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Aug. 31, 2000
Initial Cost, Land 661us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrangeCaMember
Initial Cost, Buildings & Improvements 1,542us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrangeCaMember
Costs Subsequent to Acquisition 6,150us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrangeCaMember
Gross Carrying Amount, Land 667us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrangeCaMember
Gross Carrying Amount, Buildings 7,686us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrangeCaMember
Gross Carrying Amount, Total 8,353us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrangeCaMember
Accumulated Depreciation 3,400us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OrangeCaMember
Bayshore, NY [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 01, 2000
Initial Cost, Land 1,277us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BayshoreNyMember
Initial Cost, Buildings & Improvements 2,980us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BayshoreNyMember
Costs Subsequent to Acquisition 2,000us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BayshoreNyMember
Gross Carrying Amount, Land 1,533us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BayshoreNyMember
Gross Carrying Amount, Buildings 4,724us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BayshoreNyMember
Gross Carrying Amount, Total 6,257us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BayshoreNyMember
Accumulated Depreciation 2,843us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BayshoreNyMember
Los Angeles, CA [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 01, 2000
Initial Cost, Land 590us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesCaMember
Initial Cost, Buildings & Improvements 1,376us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesCaMember
Costs Subsequent to Acquisition 667us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesCaMember
Gross Carrying Amount, Land 708us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesCaMember
Gross Carrying Amount, Buildings 1,925us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesCaMember
Gross Carrying Amount, Total 2,633us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesCaMember
Accumulated Depreciation 1,264us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesCaMember
Merrillville [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 13, 2000
Initial Cost, Land 343us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MerrillvilleMember
Initial Cost, Buildings & Improvements 2,474us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MerrillvilleMember
Costs Subsequent to Acquisition 1,693us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MerrillvilleMember
Gross Carrying Amount, Land 832us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MerrillvilleMember
Gross Carrying Amount, Buildings 3,678us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MerrillvilleMember
Gross Carrying Amount, Total 4,510us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MerrillvilleMember
Accumulated Depreciation 1,905us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MerrillvilleMember
Gardena / W. El Segundo [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 15, 2000
Initial Cost, Land 1,532us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenaWElSegundoMember
Initial Cost, Buildings & Improvements 3,424us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenaWElSegundoMember
Costs Subsequent to Acquisition 266us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenaWElSegundoMember
Gross Carrying Amount, Land 1,532us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenaWElSegundoMember
Gross Carrying Amount, Buildings 3,690us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenaWElSegundoMember
Gross Carrying Amount, Total 5,222us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenaWElSegundoMember
Accumulated Depreciation 1,952us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenaWElSegundoMember
Chicago / Ashland Avenue [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 15, 2000
Initial Cost, Land 850us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoAshlandAvenueMember
Initial Cost, Buildings & Improvements 4,880us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoAshlandAvenueMember
Costs Subsequent to Acquisition 2,335us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoAshlandAvenueMember
Gross Carrying Amount, Land 849us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoAshlandAvenueMember
Gross Carrying Amount, Buildings 7,216us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoAshlandAvenueMember
Gross Carrying Amount, Total 8,065us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoAshlandAvenueMember
Accumulated Depreciation 4,316us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoAshlandAvenueMember
Oakland / Macarthur [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 15, 2000
Initial Cost, Land 678us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OaklandMacarthurMember
Initial Cost, Buildings & Improvements 2,751us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OaklandMacarthurMember
Costs Subsequent to Acquisition 395us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OaklandMacarthurMember
Gross Carrying Amount, Land 678us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OaklandMacarthurMember
Gross Carrying Amount, Buildings 3,146us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OaklandMacarthurMember
Gross Carrying Amount, Total 3,824us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OaklandMacarthurMember
Accumulated Depreciation 1,741us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OaklandMacarthurMember
Alexandria / Pickett Ii [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 15, 2000
Initial Cost, Land 2,743us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlexandriaPickettIiMember
Initial Cost, Buildings & Improvements 6,198us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlexandriaPickettIiMember
Costs Subsequent to Acquisition 540us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlexandriaPickettIiMember
Gross Carrying Amount, Land 2,743us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlexandriaPickettIiMember
Gross Carrying Amount, Buildings 6,738us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlexandriaPickettIiMember
Gross Carrying Amount, Total 9,481us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlexandriaPickettIiMember
Accumulated Depreciation 3,664us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_AlexandriaPickettIiMember
Royal Oak / Coolidge Highway [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 15, 2000
Initial Cost, Land 1,062us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RoyalOakCoolidgeHighwayMember
Initial Cost, Buildings & Improvements 2,576us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RoyalOakCoolidgeHighwayMember
Costs Subsequent to Acquisition 359us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RoyalOakCoolidgeHighwayMember
Gross Carrying Amount, Land 1,062us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RoyalOakCoolidgeHighwayMember
Gross Carrying Amount, Buildings 2,935us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RoyalOakCoolidgeHighwayMember
Gross Carrying Amount, Total 3,997us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RoyalOakCoolidgeHighwayMember
Accumulated Depreciation 1,573us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RoyalOakCoolidgeHighwayMember
Hawthorne / Crenshaw Blvd. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 15, 2000
Initial Cost, Land 1,079us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HawthorneCrenshawBlvdMember
Initial Cost, Buildings & Improvements 2,913us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HawthorneCrenshawBlvdMember
Costs Subsequent to Acquisition 370us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HawthorneCrenshawBlvdMember
Gross Carrying Amount, Land 1,079us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HawthorneCrenshawBlvdMember
Gross Carrying Amount, Buildings 3,283us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HawthorneCrenshawBlvdMember
Gross Carrying Amount, Total 4,362us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HawthorneCrenshawBlvdMember
Accumulated Depreciation 1,799us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HawthorneCrenshawBlvdMember
Rockaway / U.S. Route 46 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 15, 2000
Initial Cost, Land 2,424us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockawayUsRouteFourSixMember
Initial Cost, Buildings & Improvements 4,945us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockawayUsRouteFourSixMember
Costs Subsequent to Acquisition 536us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockawayUsRouteFourSixMember
Gross Carrying Amount, Land 2,423us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockawayUsRouteFourSixMember
Gross Carrying Amount, Buildings 5,482us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockawayUsRouteFourSixMember
Gross Carrying Amount, Total 7,905us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockawayUsRouteFourSixMember
Accumulated Depreciation 3,023us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RockawayUsRouteFourSixMember
Evanston / Greenbay [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 15, 2000
Initial Cost, Land 846us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EvanstonGreenbayMember
Initial Cost, Buildings & Improvements 4,436us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EvanstonGreenbayMember
Costs Subsequent to Acquisition 562us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EvanstonGreenbayMember
Gross Carrying Amount, Land 846us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EvanstonGreenbayMember
Gross Carrying Amount, Buildings 4,998us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EvanstonGreenbayMember
Gross Carrying Amount, Total 5,844us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EvanstonGreenbayMember
Accumulated Depreciation 2,758us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_EvanstonGreenbayMember
Los Angeles / Coliseum [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 15, 2000
Initial Cost, Land 3,109us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesColiseumMember
Initial Cost, Buildings & Improvements 4,013us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesColiseumMember
Costs Subsequent to Acquisition 383us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesColiseumMember
Gross Carrying Amount, Land 3,108us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesColiseumMember
Gross Carrying Amount, Buildings 4,397us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesColiseumMember
Gross Carrying Amount, Total 7,505us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesColiseumMember
Accumulated Depreciation 2,370us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesColiseumMember
Bethpage / Hempstead Turnpike [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 15, 2000
Initial Cost, Land 2,899us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BethpageHempsteadTurnpikeMember
Initial Cost, Buildings & Improvements 5,457us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BethpageHempsteadTurnpikeMember
Costs Subsequent to Acquisition 1,482us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BethpageHempsteadTurnpikeMember
Gross Carrying Amount, Land 2,899us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BethpageHempsteadTurnpikeMember
Gross Carrying Amount, Buildings 6,939us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BethpageHempsteadTurnpikeMember
Gross Carrying Amount, Total 9,838us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BethpageHempsteadTurnpikeMember
Accumulated Depreciation 3,778us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BethpageHempsteadTurnpikeMember
Northport / Fort Salonga Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 15, 2000
Initial Cost, Land 2,999us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthportFortSalongaRoadMember
Initial Cost, Buildings & Improvements 5,698us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthportFortSalongaRoadMember
Costs Subsequent to Acquisition 1,037us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthportFortSalongaRoadMember
Gross Carrying Amount, Land 2,998us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthportFortSalongaRoadMember
Gross Carrying Amount, Buildings 6,736us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthportFortSalongaRoadMember
Gross Carrying Amount, Total 9,734us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthportFortSalongaRoadMember
Accumulated Depreciation 3,845us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NorthportFortSalongaRoadMember
Brooklyn / St. Johns Place [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 15, 2000
Initial Cost, Land 3,492us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynStJohnsPlaceMember
Initial Cost, Buildings & Improvements 6,026us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynStJohnsPlaceMember
Costs Subsequent to Acquisition 1,594us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynStJohnsPlaceMember
Gross Carrying Amount, Land 3,491us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynStJohnsPlaceMember
Gross Carrying Amount, Buildings 7,621us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynStJohnsPlaceMember
Gross Carrying Amount, Total 11,112us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynStJohnsPlaceMember
Accumulated Depreciation 4,356us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_BrooklynStJohnsPlaceMember
Lake Ronkonkoma / Portion Rd. [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 15, 2000
Initial Cost, Land 937us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakeRonkonkomaPortionRdMember
Initial Cost, Buildings & Improvements 4,199us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakeRonkonkomaPortionRdMember
Costs Subsequent to Acquisition 594us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakeRonkonkomaPortionRdMember
Gross Carrying Amount, Land 937us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakeRonkonkomaPortionRdMember
Gross Carrying Amount, Buildings 4,793us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakeRonkonkomaPortionRdMember
Gross Carrying Amount, Total 5,730us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakeRonkonkomaPortionRdMember
Accumulated Depreciation 2,577us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakeRonkonkomaPortionRdMember
Tampa/Gunn Hwy [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 15, 2000
Initial Cost, Land 1,843us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaGunnHwyMember
Initial Cost, Buildings & Improvements 4,300us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaGunnHwyMember
Costs Subsequent to Acquisition 330us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaGunnHwyMember
Gross Carrying Amount, Land 1,843us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaGunnHwyMember
Gross Carrying Amount, Buildings 4,630us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaGunnHwyMember
Gross Carrying Amount, Total 6,473us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaGunnHwyMember
Accumulated Depreciation 2,710us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaGunnHwyMember
Tampa/N. Del Mabry [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 18, 2000
Initial Cost, Land 2,204us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaNDelMabryMember
Initial Cost, Buildings & Improvements 2,447us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaNDelMabryMember
Costs Subsequent to Acquisition 10,337us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaNDelMabryMember
Gross Carrying Amount, Land 2,239us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaNDelMabryMember
Gross Carrying Amount, Buildings 12,749us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaNDelMabryMember
Gross Carrying Amount, Total 14,988us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaNDelMabryMember
Accumulated Depreciation 8,165us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaNDelMabryMember
Marietta/Kennestone& Hwy5 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 30, 2000
Initial Cost, Land 622us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaKennestoneHwy5Member
Initial Cost, Buildings & Improvements 3,388us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaKennestoneHwy5Member
Costs Subsequent to Acquisition 1,555us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaKennestoneHwy5Member
Gross Carrying Amount, Land 628us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaKennestoneHwy5Member
Gross Carrying Amount, Buildings 4,937us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaKennestoneHwy5Member
Gross Carrying Amount, Total 5,565us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaKennestoneHwy5Member
Accumulated Depreciation 2,844us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MariettaKennestoneHwy5Member
Lilburn/Indian Trail [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 30, 2000
Initial Cost, Land 1,695us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LilburnIndianTrailMember
Initial Cost, Buildings & Improvements 5,170us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LilburnIndianTrailMember
Costs Subsequent to Acquisition 1,850us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LilburnIndianTrailMember
Gross Carrying Amount, Land 1,711us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LilburnIndianTrailMember
Gross Carrying Amount, Buildings 7,004us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LilburnIndianTrailMember
Gross Carrying Amount, Total 8,715us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LilburnIndianTrailMember
Accumulated Depreciation 3,946us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LilburnIndianTrailMember
Largo/Missouri [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Nov. 15, 2000
Initial Cost, Land 1,092us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LargoMissouriMember
Initial Cost, Buildings & Improvements 4,270us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LargoMissouriMember
Costs Subsequent to Acquisition 2,641us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LargoMissouriMember
Gross Carrying Amount, Land 1,838us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LargoMissouriMember
Gross Carrying Amount, Buildings 6,165us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LargoMissouriMember
Gross Carrying Amount, Total 8,003us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LargoMissouriMember
Accumulated Depreciation 3,219us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LargoMissouriMember
St. Louis/Wilson [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Nov. 21, 2000
Initial Cost, Land 1,608us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisWilsonMember
Initial Cost, Buildings & Improvements 3,913us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisWilsonMember
Costs Subsequent to Acquisition 2,104us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisWilsonMember
Gross Carrying Amount, Land 1,627us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisWilsonMember
Gross Carrying Amount, Buildings 5,998us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisWilsonMember
Gross Carrying Amount, Total 7,625us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisWilsonMember
Accumulated Depreciation 3,338us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_StLouisWilsonMember
Houston/7715 Katy Frwy [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 21, 2000
Initial Cost, Land 2,274us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Houston7715KatyFrwyMember
Initial Cost, Buildings & Improvements 5,307us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Houston7715KatyFrwyMember
Costs Subsequent to Acquisition (1,482)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Houston7715KatyFrwyMember
Gross Carrying Amount, Land 1,500us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Houston7715KatyFrwyMember
Gross Carrying Amount, Buildings 4,599us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Houston7715KatyFrwyMember
Gross Carrying Amount, Total 6,099us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Houston7715KatyFrwyMember
Accumulated Depreciation 2,168us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Houston7715KatyFrwyMember
Houston/10801 Katy Frwy [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 21, 2000
Initial Cost, Land 1,664us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Houston10801KatyFrwyMember
Initial Cost, Buildings & Improvements 3,884us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Houston10801KatyFrwyMember
Costs Subsequent to Acquisition 198us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Houston10801KatyFrwyMember
Gross Carrying Amount, Land 1,618us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Houston10801KatyFrwyMember
Gross Carrying Amount, Buildings 4,128us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Houston10801KatyFrwyMember
Gross Carrying Amount, Total 5,746us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Houston10801KatyFrwyMember
Accumulated Depreciation 2,321us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_Houston10801KatyFrwyMember
Houston/Main St [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 21, 2000
Initial Cost, Land 1,681us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMainStMember
Initial Cost, Buildings & Improvements 3,924us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMainStMember
Costs Subsequent to Acquisition 428us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMainStMember
Gross Carrying Amount, Land 1,684us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMainStMember
Gross Carrying Amount, Buildings 4,349us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMainStMember
Gross Carrying Amount, Total 6,033us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMainStMember
Accumulated Depreciation 2,445us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonMainStMember
Houston/W. Loop/S. Frwy [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 21, 2000
Initial Cost, Land 2,036us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWLoopSFrwyMember
Initial Cost, Buildings & Improvements 4,749us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWLoopSFrwyMember
Costs Subsequent to Acquisition 399us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWLoopSFrwyMember
Gross Carrying Amount, Land 2,038us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWLoopSFrwyMember
Gross Carrying Amount, Buildings 5,146us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWLoopSFrwyMember
Gross Carrying Amount, Total 7,184us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWLoopSFrwyMember
Accumulated Depreciation 2,822us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HoustonWLoopSFrwyMember
Chicago '00 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 29, 2000
Initial Cost, Land 1,946us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoTwoThousandMember
Initial Cost, Buildings & Improvements 6,002us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoTwoThousandMember
Costs Subsequent to Acquisition 196us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoTwoThousandMember
Gross Carrying Amount, Land 1,949us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoTwoThousandMember
Gross Carrying Amount, Buildings 6,195us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoTwoThousandMember
Gross Carrying Amount, Total 8,144us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoTwoThousandMember
Accumulated Depreciation 3,531us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_ChicagoTwoThousandMember
Gardena [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 29, 2000
Initial Cost, Land 1,737us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenaMember
Initial Cost, Buildings & Improvements 5,456us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenaMember
Costs Subsequent to Acquisition 5,017us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenaMember
Gross Carrying Amount, Land 1,737us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenaMember
Gross Carrying Amount, Buildings 10,473us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenaMember
Gross Carrying Amount, Total 12,210us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenaMember
Accumulated Depreciation 3,067us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_GardenaMember
Raleigh/Glenwood [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 30, 2000
Initial Cost, Land 1,545us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighGlenwoodMember
Initial Cost, Buildings & Improvements 3,628us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighGlenwoodMember
Costs Subsequent to Acquisition 205us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighGlenwoodMember
Gross Carrying Amount, Land 1,560us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighGlenwoodMember
Gross Carrying Amount, Buildings 3,818us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighGlenwoodMember
Gross Carrying Amount, Total 5,378us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighGlenwoodMember
Accumulated Depreciation 2,252us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_RaleighGlenwoodMember
Frazier [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 30, 2000
Initial Cost, Land 800us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FrazierMember
Initial Cost, Buildings & Improvements 3,324us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FrazierMember
Costs Subsequent to Acquisition 99us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FrazierMember
Gross Carrying Amount, Land 800us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FrazierMember
Gross Carrying Amount, Buildings 3,423us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FrazierMember
Gross Carrying Amount, Total 4,223us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FrazierMember
Accumulated Depreciation 1,852us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FrazierMember
Troy/E. Big Beaver Rd [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 05, 2001
Initial Cost, Land 2,195us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TroyEBigBeaverRdMember
Initial Cost, Buildings & Improvements 4,221us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TroyEBigBeaverRdMember
Costs Subsequent to Acquisition 2,173us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TroyEBigBeaverRdMember
Gross Carrying Amount, Land 2,820us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TroyEBigBeaverRdMember
Gross Carrying Amount, Buildings 5,769us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TroyEBigBeaverRdMember
Gross Carrying Amount, Total 8,589us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TroyEBigBeaverRdMember
Accumulated Depreciation 2,907us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TroyEBigBeaverRdMember
Ft Lauderdale [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 11, 2001
Initial Cost, Land 954us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleMember
Initial Cost, Buildings & Improvements 3,972us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleMember
Costs Subsequent to Acquisition 2,777us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleMember
Gross Carrying Amount, Land 1,746us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleMember
Gross Carrying Amount, Buildings 5,957us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleMember
Gross Carrying Amount, Total 7,703us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleMember
Accumulated Depreciation 2,990us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FtLauderdaleMember
No Hollywood/Sherman Way [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 16, 2001
Initial Cost, Land 2,173us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NoHollywoodShermanWayMember
Initial Cost, Buildings & Improvements 5,442us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NoHollywoodShermanWayMember
Costs Subsequent to Acquisition 3,715us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NoHollywoodShermanWayMember
Gross Carrying Amount, Land 2,200us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NoHollywoodShermanWayMember
Gross Carrying Amount, Buildings 9,130us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NoHollywoodShermanWayMember
Gross Carrying Amount, Total 11,330us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NoHollywoodShermanWayMember
Accumulated Depreciation 4,405us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_NoHollywoodShermanWayMember
Tuscon/E. Speedway [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 18, 2001
Initial Cost, Land 735us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TusconESpeedwayMember
Initial Cost, Buildings & Improvements 2,895us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TusconESpeedwayMember
Costs Subsequent to Acquisition 1,317us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TusconESpeedwayMember
Gross Carrying Amount, Land 1,095us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TusconESpeedwayMember
Gross Carrying Amount, Buildings 3,852us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TusconESpeedwayMember
Gross Carrying Amount, Total 4,947us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TusconESpeedwayMember
Accumulated Depreciation 2,052us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TusconESpeedwayMember
Lombard/Finley [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jan. 25, 2001
Initial Cost, Land 851us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LombardFinleyMember
Initial Cost, Buildings & Improvements 3,806us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LombardFinleyMember
Costs Subsequent to Acquisition 2,685us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LombardFinleyMember
Gross Carrying Amount, Land 1,564us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LombardFinleyMember
Gross Carrying Amount, Buildings 5,778us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LombardFinleyMember
Gross Carrying Amount, Total 7,342us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LombardFinleyMember
Accumulated Depreciation 2,963us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LombardFinleyMember
Los Angeles/West Pico [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Mar. 15, 2001
Initial Cost, Land 8,579us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesWestPicoMember
Initial Cost, Buildings & Improvements 8,630us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesWestPicoMember
Costs Subsequent to Acquisition 2,408us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesWestPicoMember
Gross Carrying Amount, Land 8,294us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesWestPicoMember
Gross Carrying Amount, Buildings 11,323us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesWestPicoMember
Gross Carrying Amount, Total 19,617us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesWestPicoMember
Accumulated Depreciation 6,203us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesWestPicoMember
Lakewood/Cedar Dr [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Apr. 01, 2001
Initial Cost, Land 1,329us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakewoodCedarDrMember
Initial Cost, Buildings & Improvements 9,356us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakewoodCedarDrMember
Costs Subsequent to Acquisition 4,228us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakewoodCedarDrMember
Gross Carrying Amount, Land 1,331us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakewoodCedarDrMember
Gross Carrying Amount, Buildings 13,582us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakewoodCedarDrMember
Gross Carrying Amount, Total 14,913us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakewoodCedarDrMember
Accumulated Depreciation 7,216us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LakewoodCedarDrMember
Farmingdale/Rte 110 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Apr. 07, 2001
Initial Cost, Land 2,364us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FarmingdaleRte110Member
Initial Cost, Buildings & Improvements 5,807us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FarmingdaleRte110Member
Costs Subsequent to Acquisition 2,198us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FarmingdaleRte110Member
Gross Carrying Amount, Land 1,779us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FarmingdaleRte110Member
Gross Carrying Amount, Buildings 8,590us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FarmingdaleRte110Member
Gross Carrying Amount, Total 10,369us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FarmingdaleRte110Member
Accumulated Depreciation 4,271us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_FarmingdaleRte110Member
Philadelphia/Aramingo [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Apr. 17, 2001
Initial Cost, Land 968us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhiladelphiaAramingoMember
Initial Cost, Buildings & Improvements 4,539us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhiladelphiaAramingoMember
Costs Subsequent to Acquisition 177us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhiladelphiaAramingoMember
Gross Carrying Amount, Land 968us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhiladelphiaAramingoMember
Gross Carrying Amount, Buildings 4,716us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhiladelphiaAramingoMember
Gross Carrying Amount, Total 5,684us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhiladelphiaAramingoMember
Accumulated Depreciation 2,615us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PhiladelphiaAramingoMember
Largo/Walsingham Road [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Apr. 18, 2001
Initial Cost, Land 1,000us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LargoWalsinghamRoadMember
Initial Cost, Buildings & Improvements 3,545us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LargoWalsinghamRoadMember
Costs Subsequent to Acquisition (179)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LargoWalsinghamRoadMember
Gross Carrying Amount, Land 800us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LargoWalsinghamRoadMember
Gross Carrying Amount, Buildings 3,566us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LargoWalsinghamRoadMember
Gross Carrying Amount, Total 4,366us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LargoWalsinghamRoadMember
Accumulated Depreciation 2,000us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LargoWalsinghamRoadMember
Port Washington/Seaview &W.Sh [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 17, 2001
Initial Cost, Land 2,381us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PortWashingtonSeaviewWShMember
Initial Cost, Buildings & Improvements 4,608us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PortWashingtonSeaviewWShMember
Costs Subsequent to Acquisition 1,927us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PortWashingtonSeaviewWShMember
Gross Carrying Amount, Land 2,359us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PortWashingtonSeaviewWShMember
Gross Carrying Amount, Buildings 6,557us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PortWashingtonSeaviewWShMember
Gross Carrying Amount, Total 8,916us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PortWashingtonSeaviewWShMember
Accumulated Depreciation 3,310us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_PortWashingtonSeaviewWShMember
Silver Springs/Prosperity [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 18, 2001
Initial Cost, Land 1,065us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SilverSpringsProsperityMember
Initial Cost, Buildings & Improvements 5,391us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SilverSpringsProsperityMember
Costs Subsequent to Acquisition 2,189us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SilverSpringsProsperityMember
Gross Carrying Amount, Land 1,065us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SilverSpringsProsperityMember
Gross Carrying Amount, Buildings 7,580us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SilverSpringsProsperityMember
Gross Carrying Amount, Total 8,645us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SilverSpringsProsperityMember
Accumulated Depreciation 3,841us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SilverSpringsProsperityMember
Tampa/W. Waters Ave & Wilsky [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 19, 2001
Initial Cost, Land 953us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaWWatersAveWilskyMember
Initial Cost, Buildings & Improvements 3,785us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaWWatersAveWilskyMember
Costs Subsequent to Acquisition 112us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaWWatersAveWilskyMember
Gross Carrying Amount, Land 954us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaWWatersAveWilskyMember
Gross Carrying Amount, Buildings 3,896us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaWWatersAveWilskyMember
Gross Carrying Amount, Total 4,850us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaWWatersAveWilskyMember
Accumulated Depreciation 2,147us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_TampaWWatersAveWilskyMember
Middletown [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jun. 26, 2001
Initial Cost, Land 1,535us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiddletownMember
Initial Cost, Buildings & Improvements 4,258us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiddletownMember
Costs Subsequent to Acquisition 2,830us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiddletownMember
Gross Carrying Amount, Land 2,295us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiddletownMember
Gross Carrying Amount, Buildings 6,328us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiddletownMember
Gross Carrying Amount, Total 8,623us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiddletownMember
Accumulated Depreciation 3,061us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiddletownMember
Miami/Sw 85th Ave [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Jul. 29, 2001
Initial Cost, Land 2,755us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSw85thAveMember
Initial Cost, Buildings & Improvements 4,951us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSw85thAveMember
Costs Subsequent to Acquisition 3,758us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSw85thAveMember
Gross Carrying Amount, Land 2,730us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSw85thAveMember
Gross Carrying Amount, Buildings 8,734us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSw85thAveMember
Gross Carrying Amount, Total 11,464us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSw85thAveMember
Accumulated Depreciation 4,349us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_MiamiSw85thAveMember
Hoover/John Hawkins Pkwy [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Aug. 28, 2001
Initial Cost, Land 1,050us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HooverJohnHawkinsPkwyMember
Initial Cost, Buildings & Improvements 2,453us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HooverJohnHawkinsPkwyMember
Costs Subsequent to Acquisition 190us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HooverJohnHawkinsPkwyMember
Gross Carrying Amount, Land 1,051us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HooverJohnHawkinsPkwyMember
Gross Carrying Amount, Buildings 2,642us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HooverJohnHawkinsPkwyMember
Gross Carrying Amount, Total 3,693us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HooverJohnHawkinsPkwyMember
Accumulated Depreciation 1,446us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HooverJohnHawkinsPkwyMember
Syosset [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Sep. 30, 2001
Initial Cost, Land 2,461us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SyossetMember
Initial Cost, Buildings & Improvements 5,312us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SyossetMember
Costs Subsequent to Acquisition 2,225us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SyossetMember
Gross Carrying Amount, Land 3,089us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SyossetMember
Gross Carrying Amount, Buildings 6,909us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SyossetMember
Gross Carrying Amount, Total 9,998us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SyossetMember
Accumulated Depreciation 3,382us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SyossetMember
Los Angeles/W.Jefferson '01 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 27, 2001
Initial Cost, Land 8,285us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesWJeffersonTwoThousandOneMember
Initial Cost, Buildings & Improvements 9,429us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesWJeffersonTwoThousandOneMember
Costs Subsequent to Acquisition 4,896us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesWJeffersonTwoThousandOneMember
Gross Carrying Amount, Land 8,333us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesWJeffersonTwoThousandOneMember
Gross Carrying Amount, Buildings 14,277us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesWJeffersonTwoThousandOneMember
Gross Carrying Amount, Total 22,610us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesWJeffersonTwoThousandOneMember
Accumulated Depreciation 6,660us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_LosAngelesWJeffersonTwoThousandOneMember
Howell/Hgwy 9 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 27, 2001
Initial Cost, Land 941us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HowellHgwyNineMember
Initial Cost, Buildings & Improvements 4,070us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HowellHgwyNineMember
Costs Subsequent to Acquisition 1,721us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HowellHgwyNineMember
Gross Carrying Amount, Land 1,365us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HowellHgwyNineMember
Gross Carrying Amount, Buildings 5,367us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HowellHgwyNineMember
Gross Carrying Amount, Total 6,732us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HowellHgwyNineMember
Accumulated Depreciation 2,678us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_HowellHgwyNineMember
Catonsville/Kent [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 29, 2001
Initial Cost, Land 1,378us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CatonsvilleKentMember
Initial Cost, Buildings & Improvements 5,289us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CatonsvilleKentMember
Costs Subsequent to Acquisition 2,773us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CatonsvilleKentMember
Gross Carrying Amount, Land 1,377us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CatonsvilleKentMember
Gross Carrying Amount, Buildings 8,063us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CatonsvilleKentMember
Gross Carrying Amount, Total 9,440us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CatonsvilleKentMember
Accumulated Depreciation 4,025us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_CatonsvilleKentMember
Old Bridge/Rte 9 [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 29, 2001
Initial Cost, Land 1,244us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OldBridgeRte9Member
Initial Cost, Buildings & Improvements 4,960us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OldBridgeRte9Member
Costs Subsequent to Acquisition 115us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OldBridgeRte9Member
Gross Carrying Amount, Land 1,250us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OldBridgeRte9Member
Gross Carrying Amount, Buildings 5,069us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OldBridgeRte9Member
Gross Carrying Amount, Total 6,319us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OldBridgeRte9Member
Accumulated Depreciation 2,669us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_OldBridgeRte9Member
Sacremento / Roseville [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 29, 2001
Initial Cost, Land 876us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacrementoRosevilleMember
Initial Cost, Buildings & Improvements 5,344us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacrementoRosevilleMember
Costs Subsequent to Acquisition 2,059us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacrementoRosevilleMember
Gross Carrying Amount, Land 526us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacrementoRosevilleMember
Gross Carrying Amount, Buildings 7,753us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacrementoRosevilleMember
Gross Carrying Amount, Total 8,279us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacrementoRosevilleMember
Accumulated Depreciation 4,002us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SacrementoRosevilleMember
Santa Ana/E.Mcfadden [Member]  
Real Estate and Accumulated Depreciation [Line Items]  
Date Acquired Dec. 31, 2001
Initial Cost, Land 7,587us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaAnaEMcfaddenMember
Initial Cost, Buildings & Improvements 8,612us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaAnaEMcfaddenMember
Costs Subsequent to Acquisition 5,334us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaAnaEMcfaddenMember
Gross Carrying Amount, Land 7,600us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaAnaEMcfaddenMember
Gross Carrying Amount, Buildings 13,933us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaAnaEMcfaddenMember
Gross Carrying Amount, Total 21,533us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaAnaEMcfaddenMember
Accumulated Depreciation $ 6,010us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= psa_SantaAnaEMcfaddenMember