Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Net loss	$ (71)	$ (65)	$ (226)	$ (200)
Other comprehensive income (loss)	1	(2)	4	(8)
Comprehensive loss	$ (70)	$ (67)	$ (222)	$ (208)