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- Definition

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Line of Credit Facility, Commitment Fee Percentage, Increase (Decrease)

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of real estate investment property, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

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The cash outflow to repay long-term debt that is not secured by collateral. Excludes repayments of tax exempt unsecured debt.

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Debt - Narrative (Details) - USD ($)	1 Months Ended		6 Months Ended
Debt - Narrative (Details) - USD ($)	May 31, 2026	Jul. 31, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Notes Payable, Unsecured Notes and Credit Facility
Commercial paper, maximum borrowing capacity			$ 1,000,000,000
Repayment of unsecured debt			475,000,000	$ 525,000,000
Net carrying value of apartment communities and improved land parcels securing debt			20,974,899,000		$ 20,806,242,000
Asset Pledged as Collateral \| Notes Payable, Other Payables
Notes Payable, Unsecured Notes and Credit Facility
Net carrying value of apartment communities and improved land parcels securing debt			1,190,937,000
Credit Facility
Notes Payable, Unsecured Notes and Credit Facility
Available borrowing capacity			$ 2,500,000,000		$ 2,500,000,000
Current interest rate (as a percent)			4.39%
Debt instrument, basis spread on variable rate (as a percent)			0.705%
Annual facility fee, percentage			0.12%
Debt instrument, basis spread on variable rate, increase (decrease)		0.02%
Line of credit facility, commitment fee percentage, increase (decrease)		0.005%
Credit Facility \| Minimum
Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, basis spread on variable rate (as a percent)			0.65%
Annual facility fee, percentage			0.10%
Credit Facility \| Maximum
Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, basis spread on variable rate (as a percent)			1.40%
Annual facility fee, percentage			0.30%
Notes Payable 2.950 Maturities 2026 \| Unsecured notes
Notes Payable, Unsecured Notes and Credit Facility
Repayment of unsecured debt	$ 475,000,000
Fixed interest rate	2.95%