Real Estate Transactions - Development Activities (Details) $ in Millions	3 Months Ended
Mar. 31, 2022 USD ($)
Real Estate [Abstract]
Development and redevelopment projects, amount decrease	$ 52
Development commitments	$ 418

Commitments, Development and Redevelopment Projects, Increase (Decrease)

No definition available.

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Namespace Prefix:	peak_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration