Income Taxes (Tables)

3 Months Ended

Mar. 31, 2022

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation

The Registrants reported the following effective tax rates:

	Three Months Ended March 31,
	2022		2021
CenterPoint Energy - Continuing operations (1)	27	%	15	%
CenterPoint Energy - Discontinued operations	—	%	23	%
Houston Electric (2)	22	%	13	%
CERC (3)	26	%	22	%

(1)CenterPoint Energy’s higher effective tax rate on income from continuing operations for the three months ended March 31, 2022 compared to the three months ended March 31, 2021 was primarily driven by the impact of the non-deductible goodwill associated with the sale of the Natural Gas businesses in Arkansas and Oklahoma, and a decrease in EDIT amortization of the net regulatory EDIT liability.

(2)Houston Electric’s higher effective tax rate for the three months ended March 31, 2022 compared to the same period in 2021 was primarily driven by a decrease in the amount of amortization of the net regulatory EDIT liability.

(3)CERC’s higher effective tax rate for the three months ended March 31, 2022 compared to the same period ended March 31, 2021 was primarily driven by the impact of the non-deductible goodwill associated with the sale of the Natural Gas businesses in Arkansas and Oklahoma, and an increase in EDIT amortization of the net regulatory EDIT liability.