Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (32)	$ 31	$ 26	$ (77)
Other comprehensive loss
Unrealized gains (losses) and amortization from cash flow hedges, net of deferred tax benefit/(expense) of $(1) and less than $(1), respectively, for the three and nine months ended September 30, 2023 and $(2) for each of the three and nine months ended September 30, 2022. (Note 4)	4	7	0	7
Other comprehensive income (loss)	4	7	0	7
Comprehensive income (loss)	$ (28)	$ 38	$ 26	$ (70)