Assets and Liabilities Measured at Fair Value - Realized and Unrealized Gains (Losses) (Details) - USD ($) $ in Millions |
3 Months Ended | |
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Mar. 31, 2025 |
Mar. 31, 2024 |
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| Realized and unrealized gains (losses) on financial instruments | ||
| Realized and unrealized gains (losses) on financial instruments, net | $ (15) | $ (7) |
| Change in fair value of exchangeable senior debentures realized gain (loss) | 53 | (129) |
| Cumulative amount of gain in change in fair value | 566 | |
| Equity securities | ||
| Realized and unrealized gains (losses) on financial instruments | ||
| Realized and unrealized gains (losses) on financial instruments, net | (2) | |
| Exchangeable senior debentures | ||
| Realized and unrealized gains (losses) on financial instruments | ||
| Realized and unrealized gains (losses) on financial instruments, net | $ (15) | $ (5) |
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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 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. No definition available.
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- Definition Amount of realized and unrealized gain (loss) on investment. 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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