Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (1,622)	$ 428	$ (73)
Other comprehensive income (loss):
Net unrealized gain (loss) on available-for-sale marketable securities, net of tax	3	(2)	(1)
Change in foreign currency translation adjustments	5	(2)	0
Total other comprehensive income (loss)	8	(4)	(1)
Comprehensive income (loss)	$ (1,614)	$ 424	$ (74)