Equity (Tables)

3 Months Ended

Mar. 31, 2023

Equity [Abstract]

Schedule of Dividends Declared

Dividends Declared and Paid (CenterPoint Energy)

	Dividends Declared Per Share				Dividends Paid Per Share
	Three Months Ended March 31,					Three Months Ended March 31,
	2023		2022			2023		2022
Common Stock	$	—	$	—		$	0.190	$	0.170
Series A Preferred Stock	—		—			30.625		30.625

Equity Instrument	Declaration Date	Record Date	Payment Date	Per Share
Common Stock	April 20, 2023	May 18, 2023	June 8, 2023	$	0.1900

Schedule of Preferred Stock

Preferred Stock (CenterPoint Energy)

	Liquidation Preference Per Share		Shares Outstanding as of		Outstanding Value as of
			March 31, 2023	December 31, 2022	March 31, 2023		December 31, 2022
	(in millions, except shares and per share amounts)
Series A Preferred Stock	$	1,000	800,000	800,000	$	790	$	790
			800,000	800,000	$	790	$	790

Schedule of Dividend Requirement on Preferred Stock

Income Allocated to Preferred Shareholders (CenterPoint Energy)

		Three Months Ended March 31,
		2023		2022
	(in millions)
Series A Preferred Stock		$	12	$	13
Total income allocated to preferred shareholders		$	12	$	13

Schedule of Accumulated Other Comprehensive Income (Loss)

Changes in accumulated comprehensive income (loss) are as follows:

	Three Months Ended March 31,
	2023						2022
	CenterPoint Energy		Houston Electric		CERC		CenterPoint Energy		Houston Electric		CERC
	(in millions)
Beginning Balance	$	(31)	$	—	$	16	$	(64)	$	—	$	10
Amounts reclassified from accumulated other comprehensive income (loss):
Prior service cost (1)	(1)		—		(1)		—		—		—
Actuarial losses (1)	—		—		—		1		—		—
Reclassification of deferred loss from cash flow hedges realized in net income	—		—		—		1		—		—
Net current period other comprehensive income (loss)	(1)		—		(1)		2		—		—
Ending Balance	$	(32)	$	—	$	15	$	(62)	$	—	$	10

(1)Amounts are included in the computation of net periodic cost and are reflected in Other income, net in each of the Registrants’ respective Condensed Statements of Consolidated Income.