Assets and Liabilities Measured at Fair Value - Narrative (Details) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Assets and liabilities measured at fair value | ||||
| Change in fair value of exchangeable senior debentures realized gain (loss) | $ 270 | $ (27) | $ 50 | |
| Cumulative amount of gain in change in fair value | $ 772 | $ 772 | $ 512 | |
| 4% Exchangeable Senior Debentures due 2029 | ||||
| Assets and liabilities measured at fair value | ||||
| Interest rate (as a percent) | 4.00% | 4.00% | 4.00% | |
| Repayment of long-term debt, principal | $ 10 | |||
| Repayment of long-term debt, carrying value | $ 1 | |||
| 1.75% Exchangeable Senior Debentures due 2046 | ||||
| Assets and liabilities measured at fair value | ||||
| Interest rate (as a percent) | 1.75% | |||
| Gain (loss) on extinguishment of debt | $ 10 | $ 60 | ||
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- Definition The cumulative amount as of the reporting date, before tax and reclassification adjustment, of unrealized gain (loss) from increase (decrease) in instrument-specific credit risk of financial liability measured under fair value option. No definition available.
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- Definition Repayment Of Long-Term Debt, Carrying Value No definition available.
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- Definition Repayment Of Long-Term Debt, Principal No definition available.
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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 Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before tax and reclassification adjustment, of unrealized gain (loss) from increase (decrease) in instrument-specific credit risk of financial liability measured under fair value option. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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