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Income Taxes (Tables) | 3 Months Ended
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Mar. 31, 2023
Income Tax Disclosure [Abstract] |
Schedule of Effective Income Tax Rate Reconciliation | The Registrants reported the following effective tax rates:
|  |  | Three Months Ended March 31,
|  |  |  |  | 2023 |  | 2022
CenterPoint Energy (1) |  |  |  |  | 19 | % |  | 27 | %
Houston Electric (2) |  |  |  |  | 23 | % |  | 22 | %
CERC (3) |  |  |  |  | 22 | % |  | 25 | %
(1)CenterPoint Energy’s lower effective tax rate for the three months ended March 31, 2023 compared to the same periods ended March 31, 2022 was primarily driven by the decrease in state income taxes and the absence of the non-deductible goodwill associated with the sale of the Natural Gas businesses in Arkansas and Oklahoma in 2022 which is partially offset by the decrease in the amount of amortization of the net regulatory EDIT liability. (2)Houston Electric’s higher effective tax rate for the three months ended March 31, 2023 compared to the same period in 2022 was primarily driven by an increase in state income taxes which is partially offset by an increase in the amount of amortization of the net regulatory EDIT liability. (3)CERC’s lower effective tax rate for the three months ended March 31, 2023 compared to the same period ended March 31, 2022 was primarily driven by a decrease in state income taxes and the absence of the non-deductible goodwill associated with the sale of the Natural Gas businesses in Arkansas and Oklahoma in 2022 which is partially offset by the decrease in the amount of amortization of the net regulatory EDIT liability.

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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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