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Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2024
Share-Based Payment Arrangement [Abstract]  
Summary of Stock-Based Compensation Expense
The following table reflects the components of stock-based compensation expense recognized in our Condensed Consolidated Statements of Operations (in millions):
Three Months Ended March 31,
20242023
Research and development$10 $
General and administrative10 10 
Total stock-based compensation$20 $19