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Other Balance Sheet Components - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Millions | Jun. 30, 2026 | Dec. 31, 2025
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Other Balance Sheet Components [Abstract] |  |
Prepaid expenses | $ 84 | $ 63
Accrued interest receivable | 47 | 35
Other current assets | 8 | 11
Total prepaid expenses and other current assets | $ 139 | $ 109

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