v3.26.3
Stockholders' Equity (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended
Sep. 30, 2025
Mar. 31, 2025
Class of Stock [Line Items]    
Sale of stock, number of shares issued in transaction (in shares)   13.6
Sale of stock, price per share (in dollars per share)   $ 11.00
Sale of stock, consideration received on transaction   $ 150
At-the-Market Facility    
Class of Stock [Line Items]    
Sale of stock, number of shares issued in transaction (in shares) 0.6  
Sale of stock, consideration received on transaction $ 8  
Gilead    
Class of Stock [Line Items]    
Sale of stock, consideration received on transaction   $ 15
Gilead    
Class of Stock [Line Items]    
Sale of stock, number of shares acquired in transaction (in shares)   1.4