Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 11	$ 120	$ 12	$ 286
Other comprehensive income (loss), net of tax	8	(2)	21
Comprehensive income	$ 19	$ 118	$ 33	$ 286