CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Comprehensive income:
Net income	$ 247	$ 215	$ 555	$ 516
Derivative instruments:
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	1	0	1	1
Total other comprehensive income	1	0	1	1
Total comprehensive income	$ 248	$ 215	$ 556	$ 517