Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Millions		12 Months Ended
	Feb. 10, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Schedule of Equity Method Investments [Line Items]
Straight line rent receivable, net of allowances		$ 338	$ 310
Residency agreement term, minimum		30 days
Residency agreement term, maximum		1 year
Maximum period available for occupancy from cessation of significant construction activity		1 year
Initial direct costs		$ 204	172
Advertising expense		$ 9	$ 8	$ 8
Healthpeak OP
Schedule of Equity Method Investments [Line Items]
Noncontrolling interest, ownership percentage by parent	100.00%
Healthpeak OP | Total Noncontrolling Interests
Schedule of Equity Method Investments [Line Items]
Common stock, unit redemption share amount	1
Building and Building Improvements
Schedule of Equity Method Investments [Line Items]
Property, plant and equipment, useful life		50 years