Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
| Investments in unconsolidated subsidiaries, fair value | $ 406 | $ 402 |
| Unamortized debt issuance costs | 5,871 | 5,181 |
| 2.500% senior notes due 2031 | Carrying Value | Mortgages | ||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
| Unamortized debt issuance costs | 405 | 197 |
| Fair Value Measured at Net Asset Value | ||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
| Investments at fair value using NAV | 23 | 23 |
| Non-Marketable Equity Investments | ||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
| Capital investments | $ 130 | $ 130 |
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- Definition Investments, Unconsolidated Subsidiaries, Fair Value No definition available.
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Cost of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The total fair value for all investments, comprising or included in the major category, of those certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments) for which the entity has intentions to sell or liquidate, but the specific assets for sale or liquidation have not been identified (for example, the entity intends to sell $10,000,000 of its investments in private equity funds, but the individual investments to be sold have not been identified). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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