Leases - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025
Leases [Abstract]
Initial direct costs	$ 227	$ 225
Straight line rent receivable, net of allowances, excluding asset held for sale, net	$ 405	$ 373

Straight Line Rent Receivable, Net Of Allowances, Excluding Asset Held For Sale, Net

No definition available.

Name:	peak_StraightLineRentReceivableNetOfAllowancesExcludingAssetHeldForSaleNet
Namespace Prefix:	peak_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant