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v3.20.1

Real Estate Transactions - Development Activities (Details) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2020 USD ($)
Real Estate [Abstract] |
Decrease to development commitments | $ 77
Development commitments | $ 284

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

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

X
- References No definition available. + Details
Name: | us-gaap_RealEstateAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration