Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Receivable from collaboration partners	$ 13	$ 6
Other assets	5	(8)
Deferred revenue	(42)	(25)
Proceeds from issuance of common stock	228	0
Related Party
Receivable from collaboration partners	(1)	6
Other assets	(6)	1
Deferred revenue	(54)	(25)
Proceeds from issuance of common stock	$ 228	$ 0