Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Receivable from collaboration partners, current	$ 11	$ 20
Accounts payable, current	42	18
Deferred revenue, current	35	85
Deferred revenue, noncurrent	$ 43	$ 234
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	400,000,000.0	400,000,000.0
Common stock, shares issued (in shares)	125,300,000	92,200,000
Common stock, shares outstanding (in shares)	125,300,000	92,200,000
Related Party
Receivable from collaboration partners, current	$ 0	$ 6
Accounts payable, current	24	0
Deferred revenue, current	35	85
Deferred revenue, noncurrent	$ 43	$ 234