Cash, Cash Equivalents and Restricted Cash, Investments and Fair Value Measurements - Narrative (Details) - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Fair Value Disclosures [Abstract] | ||||
| Debt securities, available-for-sale, realized gain | $ 0 | $ 0 | $ 0 | $ 0 |
| Debt securities, available-for-sale, realized loss | 0 | 0 | 0 | 0 |
| Interest income | $ 10,000,000 | $ 13,000,000 | $ 21,000,000 | $ 23,000,000 |
| X | ||||||||||
- Definition Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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