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v3.19.2

Real Estate Transactions - Development Activities (Details) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 USD ($) property | Jun. 30, 2019 USD ($)
Real Estate [Line Items] |  |
Increase to development commitments | $ |  | $ 82
Development commitments | $ | $ 382 | $ 382
Medical office |  |
Real Estate [Line Items] |  |
Number of properties to be developed (in properties) | property | 3 |
On-campus |  |
Real Estate [Line Items] |  |
Number of properties to be developed (in properties) | property | 2 |

X
- Definition Commitments, Development and Redevelopment Projects + References No definition available. + Details
Name: | hcp_CommitmentsDevelopmentandRedevelopmentProjects
Namespace Prefix: | hcp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Commitments, Development and Redevelopment Projects, Increase + References No definition available. + Details
Name: | hcp_CommitmentsDevelopmentandRedevelopmentProjectsAmountIncrease
Namespace Prefix: | hcp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Number Of Properties To Be Developed + References No definition available. + Details
Name: | hcp_NumberOfPropertiesToBeDeveloped
Namespace Prefix: | hcp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_RealEstateLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=hcp_MedicalOfficeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=hcp_OnCampusMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |