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Stock-Based Compensation (Tables)
 6 Months Ended
Jun. 30, 2023
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 June 30,

 

 

Six Months Ended June 30,

 

 

 

2023

 

 

2022

 

 

2023

 

 

2022

 

Research and development

 

$

9

 

 

$

7

 

 

$

18

 

 

$

16

 

General and administrative

 

 

9

 

 

 

8

 

 

 

19

 

 

 

16

 

Total stock-based compensation

 

$

18

 

 

$

15

 

 

$

37

 

 

$

32