Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenue from contract with customer, excluding assessed tax	$ 117	$ 112	$ 383
Related Party
Research and development expense, recoveries	110	132	25
General and administrative expense, net of recoveries	0	1	0
License and Development Services Revenue
Revenue from contract with customer, excluding assessed tax	80	74	345
License and Development Services Revenue | Related Party
Revenue from contract with customer, excluding assessed tax	75	74	330
Other Collaboration Revenue
Revenue from contract with customer, excluding assessed tax	37	38	38
Other Collaboration Revenue | Related Party
Revenue from contract with customer, excluding assessed tax	$ 37	$ 33	$ 31