Equity and Redeemable Noncontrolling Interests - Narrative (Details) $ / shares in Units, unit in Thousands				1 Months Ended	12 Months Ended
	Jan. 04, 2026 $ / shares	Mar. 01, 2024 shares	Feb. 10, 2023 shares	Jan. 31, 2026 USD ($)	Dec. 31, 2026	Dec. 31, 2025 USD ($) unit entity property plan_participant $ / shares shares	Dec. 31, 2024 USD ($) unit entity $ / shares shares	Dec. 31, 2023 USD ($) unit $ / shares shares	Jul. 24, 2024 USD ($)	Apr. 30, 2024 USD ($) interest	Aug. 01, 2022 USD ($)
Noncontrolling Interest [Line Items]
Dividends declared per common share (in dollars per share) | $ / shares						$ 1.22	$ 1.20	$ 1.20
Dividends paid per common share (in dollars per share) | $ / shares						$ 1.22	$ 1.20	$ 1.20
Issuance of common stock, net						$ 2,039,000	$ 1,094,000	$ 1,438,000
Number of plan participants | plan_participant						1
Noncontrolling interests, currently exercisable put options						$ 14,000,000
Noncontrolling interests, exercisable upon completion of development projects						$ 13,000,000
Number of redeemable noncontrolling interest with redemption conditions | interest										4
Redemption value										$ 53,000,000
Units outstanding (in units) | unit						4,000	3,000
Issuance of OP units criteria redemption (in units) | unit						275	76
Value of units meeting criteria for redemption						$ 4,000,000	$ 2,000,000
DownREIT units outstanding (in shares) | shares						11,000,000	11,000,000
Number of DownREIT LLCs | entity						8	8
Non-managing member unitholders						$ 347,321,000	$ 337,917,000
Down REIT units, market value						215,000,000	$ 274,000,000
Gateway Crossing JV
Noncontrolling Interest [Line Items]
Noncontrolling interests redeemable						$ 132,000,000
Ownership (in percent)						50.00%
Down REIT
Noncontrolling Interest [Line Items]
Common stock issuable (in shares) | shares						13,000,000	14,000,000
Non-managing member unitholders						$ 307,000,000	$ 310,000,000
Healthpeak OP
Noncontrolling Interest [Line Items]
Noncontrolling interest, ownership parent (in percent)			100.00%
Outpatient Medical
Noncontrolling Interest [Line Items]
Number of joint ventures | property						2
2022 Share Repurchase Program
Noncontrolling Interest [Line Items]
Stock repurchase program, authorized amount											$ 500,000,000
Common stock repurchased (in shares) | shares							10,500,000	0
Average cost per share (in dollars per share) | $ / shares							$ 17.98
Stock repurchase program, total value							$ 188,000,000
2024 Share Repurchase Program
Noncontrolling Interest [Line Items]
Stock repurchase program, authorized amount									$ 500,000,000
Common stock repurchased (in shares) | shares						5,090,000.00	0
Average cost per share (in dollars per share) | $ / shares						$ 18.50
Stock repurchase program, total value						$ 94,000,000
Stock repurchase program, remaining authorized repurchase amount						406,000,000
At-The-Market Program
Noncontrolling Interest [Line Items]
Aggregate amount authorized						1,500,000,000
Issuance of common stock, net						$ 0	$ 0	$ 0
At-The-Market Program | Minimum
Noncontrolling Interest [Line Items]
Option indexed to issuers equity, term (in years)						1 year
At-The-Market Program | Maximum
Noncontrolling Interest [Line Items]
Option indexed to issuers equity, term (in years)						2 years
2023 At-The-Market Program
Noncontrolling Interest [Line Items]
Aggregate amount remaining						$ 1,500,000,000
ATM Direct Issuances | Common Stock
Noncontrolling Interest [Line Items]
Issuance of common stock, net (in shares) | shares						0	0	0
Common Stock
Noncontrolling Interest [Line Items]
Common stock, convertible, conversion ratio		0.674
Shares issued as part of the Merger (in shares) | shares		162,000,000					162,231,000
Issuance of common stock, net						$ 596,000	$ 434,000	$ 683,000
Issuance of common stock, net (in shares) | shares						596,000	434,000	683,000
Total Noncontrolling Interests | Healthpeak OP
Noncontrolling Interest [Line Items]
Issuance of OP units (in units) | unit						2,000	2,000	2,000
Common stock, unit redemption share amount | shares			1
Subsequent Event
Noncontrolling Interest [Line Items]
Dividends declared per common share (in dollars per share) | $ / shares	$ 0.10167
Subsequent Event | Gateway Crossing JV
Noncontrolling Interest [Line Items]
Noncontrolling interests redeemable				$ 132,000,000
Ownership (in percent)				50.00%	50.00%