STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME - CERC - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net income (loss)	$ 917	$ 1,057	$ 1,486
Other comprehensive income (loss):
Adjustment to other postemployment plans	(5)	32	21
Total	(4)	33	26
CERC Corp
Net income (loss)	512	725	390
Other comprehensive income (loss):
Adjustment to other postemployment plans	0	6	0
Total	0	6	0
Comprehensive income available to common shareholders	$ 512	$ 731	$ 390