STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME - CERC - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net income (loss)	$ 1,057	$ 1,486	$ (773)
Other comprehensive income (loss):
Adjustment to pension and other postemployment plans (net of tax expense of $2, $7 and $-0-, respectively)	32	21	(5)
Total	33	26	8
CERC Corp
Net income (loss)	725	390	199
Other comprehensive income (loss):
Adjustment to pension and other postemployment plans (net of tax expense of $2, $7 and $-0-, respectively)	6	0	0
Total	6	0	0
Comprehensive income (loss) available to common shareholders	$ 731	$ 390	$ 199