Debt - Fair Value (Details) $ in Millions |
Mar. 31, 2026
USD ($)
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Dec. 31, 2025
USD ($)
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| Fixed rate mortgages and unsecured indebtedness | Book value | ||
| Fair Value of Debt | ||
| Fair value of consolidated fixed rate mortgages and unsecured indebtedness | $ 26,900 | $ 28,100 |
| Fixed rate mortgages and unsecured indebtedness | Fair value | ||
| Fair Value of Debt | ||
| Fair value of consolidated fixed rate mortgages and unsecured indebtedness | $ 25,710 | $ 27,300 |
| Discount Rate | Weighted average | Fixed rate mortgages | ||
| Fair Value of Debt | ||
| Debt percentage- measurement input | 0.0584 | 0.0563 |
| Discount Rate | Weighted average | Unsecured Debt | ||
| Fair Value of Debt | ||
| Debt percentage- measurement input | 0.0619 | 0.0605 |
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- Definition Value of input used to measure debt instrument, including, but not limited to, convertible and non-convertible debt. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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