Equity Securities and Indexed Debt Securities (ZENS) (CenterPoint Energy) (Tables)

9 Months Ended

Sep. 30, 2022

Investments, Debt and Equity Securities [Abstract]

Schedule of Indexed Debt Securities and Marketable Securities

CenterPoint Energy’s sales of equity securities during the nine months ended September 30, 2022 are as follows:

Equity Security/Date Sold	Units Sold	Proceeds (1)
		(in millions)
Energy Transfer Common Units
February and March 2022	50,999,768	$	515
Energy Transfer Series G Preferred Units
March 2022	192,390	$	187

(1)Proceeds are net of transaction costs.

CenterPoint Energy’s reference shares for each ZENS consisted of the following:

	September 30, 2022	December 31, 2021
	(in shares)
AT&T Common	0.7185	0.7185
Charter Common	0.061382	0.061382
WBD Common	0.173817	—

Schedule of Gain (Loss) on Securities

Gains and losses on equity securities, net of transaction costs, are recorded in Gain (Loss) on Equity Securities in CenterPoint Energy’s Condensed Statements of Consolidated Income.

	Gains (Losses) on Equity Securities
	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
	(in millions)
AT&T Common	$	(57)	$	(18)	$	(94)	$	(18)
Charter Common	(144)		6		(304)		58
WBD Common	(5)		—		28		—
Energy Transfer Common Units	—		—		95		—
Energy Transfer Series G Preferred Units	—		—		(9)		—
Other	—		—		—		—
Total	$	(206)	$	(12)	$	(284)	$	40

Schedule of Debt Securities, Trading, and Equity Securities, FV-NI

CenterPoint Energy and its subsidiaries hold shares of certain securities detailed in the table below, which are classified as trading securities. Shares of AT&T Common, Charter Common and WBD Common are expected to be held to facilitate CenterPoint Energy’s ability to meet its obligation under the ZENS.

	Shares Held		Carrying Value
	September 30, 2022	December 31, 2021	September 30, 2022		December 31, 2021
			(in millions)
AT&T Common	10,212,945	10,212,945	$	157	$	251
Charter Common	872,503	872,503	265		569
WBD Common	2,470,685	—	28		—
Energy Transfer Common Units	—	50,999,768	—		420
Energy Transfer Series G Preferred Units	—	192,390	—		196
Other			2		3
Total			$	452	$	1,439