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Commitments and Contingencies - Credit Enhancement Guarantee (Details) $ in Millions | Dec. 31, 2019 USD ($)
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Commitments and Contingencies Disclosure [Abstract] |
Third party debt collateralized by facilities, debt amount | $ 64
Third party debt collateralized by facilities, asset carrying amount | $ 334

X
- Definition The carrying value of facilities owned by the entity that are collateral for third party debt. + References No definition available. + Details
Name: | hcp_ThirdPartyDebtCollateralizedByFacilitiesAssetCarryingAmount
Namespace Prefix: | hcp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of debt owed by a third party for which the entity's facilities are collateral. + References No definition available. + Details
Name: | hcp_ThirdPartyDebtCollateralizedByFacilitiesDebtAmount
Namespace Prefix: | hcp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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