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Consolidated Balance Sheet Components (Tables)
 12 Months Ended
Dec. 31, 2025
Balance Sheet Related Disclosures [Abstract]  
Summary of Prepaid and Other Current Assets
Prepaid expenses and other current assets consisted of the following (in millions):
As of December 31,
20252024
Prepaid expenses and other assets$10 $13 
Accrued interest receivable5 5 
Total prepaid expenses and other current assets$15 $18 
Summary of Other Current Liabilities
Other current liabilities consisted of the following (in millions):
As of December 31,
20252024
Accrued research and development$89 $65 
Accrued personnel expenses33 31 
Income taxes payable
1 1 
Current portion of lease liabilities13 12 
Other18 14 
Total other current liabilities$154 $123