Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 71	$ 13	$ 58	$ (108)
Other comprehensive loss
Unrealized gains (losses) and amortization from cash flow hedges, net of deferred tax benefit/(expense) of $(1) and $1, respectively, for the three and six months ended June 30, 2023 and less than $1 for each of the three and six months ended June 30, 2022. (Note 4)	3	0	(4)	0
Other comprehensive income (loss)	3	0	(4)	0
Comprehensive income (loss)	$ 74	$ 13	$ 54	$ (108)