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Commitments And Contingencies (Narrative) (Details) certificate in Millions | Sep. 30, 2022 USD ($) certificate
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Commitments and Contingencies Disclosure [Abstract] |
Deductible for general liability | $ 2,000,000
Deductible for property | 25,000,000
Reduced deductible for property | 5,000,000
Aggregate loss threshold for reduced deductible for property | 35,000,000
Minimum loss per occurrence to reach aggregate loss threshold for reduced deductible for property | 5,000,000
Aggregate limit for property coverage | 75,000,000
Aggregate limit for general liability coverage | 102,000,000
Tenant insurance program against claims, maximum amount | 5,000
Third-party insurance coverage for claims paid exceeding amount for individual event | 15,000,000
Third-party limit for insurance coverage claims paid for individual event | $ 5,000,000
Number of tenant certificate holders participating in insurance program, approximate | certificate | 1.2
Aggregate coverage of tenants participating in insurance program | $ 5,600,000,000
Construction commitments | 265,700,000
Construction commitments remainder of 2022 | 71,400,000
Construction commitments 2023 | 185,800,000
Construction commitments 2024 | 8,500,000
Various lease commitments | 64,100,000
Various lease commitments remainder of 2022 | 700,000
Various lease commitments 2023 | 3,100,000
Various lease commitments 2024 | 3,100,000
Various lease commitments 2025 | 3,000,000
Various lease commitments 2026 | 3,000,000
Various lease commitments thereafter | $ 51,200,000

X
- Definition The aggregate coverage of tenant insurance under our tenant insurance program based on the number of certificate holders held by tenants at our self-storage facilities participating in our tenant insurance program at the end of the reporting period. + References No definition available. + Details
Name: | psa_AggregateCoverageOfTenantsParticipating
Namespace Prefix: | psa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The aggregate maximum limit of coverage under our general liability insurance policies through third-party insurance carriers. + References No definition available. + Details
Name: | psa_AggregateLimitGeneralLiabilityCoverage
Namespace Prefix: | psa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The aggregate maximum limit of coverage under our property insurance policies through third-party insurance carriers. + References No definition available. + Details
Name: | psa_AggregateLimitPropertyCoverage
Namespace Prefix: | psa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The aggregate maximum losses under our property insurance policies through third-party insurance carriers. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Deductible for general liability insurance + References No definition available. + Details
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Namespace Prefix: | psa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Deductible for property insurance + References No definition available. + Details
Name: | psa_DeductibleForProperty
Namespace Prefix: | psa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Lessee, Operating Lease, Liability, To Be Paid, After Year Four + References No definition available. + Details
Name: | psa_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour
Namespace Prefix: | psa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The aggregate per occurrence limit of coverage under our property insurance policies through third-party insurance carriers. + References No definition available. + Details
Name: | psa_MinimumLossPerOccurrenceToReachAggregateLossThresholdForReducedDeductibleForProperty
Namespace Prefix: | psa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Reduced Deductible For Property + References No definition available. + Details
Name: | psa_ReducedDeductibleForProperty
Namespace Prefix: | psa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The number of certificate holders held by tenants at our self-storage facilities participating in our tenant insurance program at the end of the reporting period. + References No definition available. + Details
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Namespace Prefix: | psa_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The maximum individual limit amount offered under our tenant reinsurance program for goods stored by tenants at our self-storage facilities. + References No definition available. + Details
Name: | psa_TenantIndividualInsuranceLimitMaximum
Namespace Prefix: | psa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The minimum amount for which claims paid for individual events must exceed under our third-party insurance coverage. + References No definition available. + Details
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Namespace Prefix: | psa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The maximum amount of claims paid for individual events under our third-party insurance coverage. + References No definition available. + Details
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Namespace Prefix: | psa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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- Definition Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of contractual obligation to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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- Definition Amount of contractual obligation to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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- Definition Amount of contractual obligation to be paid in remainder of current fiscal year. + References No definition available. + Details
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- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918701-209980 + Details
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- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918701-209980 + Details
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- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918701-209980 + Details
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- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918701-209980 + Details
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- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918701-209980 + Details
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- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease having initial or remaining lease term in excess of one year to be paid in remainder of current fiscal year. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918701-209980 + Details
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