Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Receivable from collaboration partners	$ 9	$ 28	$ 15
Other assets	5	22	(14)
Accounts payable	24	3	(1)
Deferred revenue	(240)	(56)	(68)
Proceeds from issuance of common stock	429	228	25
Related Party
Receivable from collaboration partners	6	14	19
Other assets	0	(6)	4
Accounts payable	24	0	0
Deferred revenue	(240)	(56)	(77)
Proceeds from issuance of common stock	$ 14	$ 228	$ 20