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Income Taxes (Tables) | 6 Months Ended
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Jun. 30, 2025
Income Tax Disclosure [Abstract] |
Schedule of Effective Income Tax Rate Reconciliation | The Registrants reported the following effective tax rates:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2025 |  | 2024 |  | 2025 |  | 2024
CenterPoint Energy (1) | 22 | % |  | 13 | % |  | 22 | % |  | 16 | %
Houston Electric | 20 | % |  | 20 | % |  | 20 | % |  | 20 | %
CERC (2) | 11 | % |  | 24 | % |  | 22 | % |  | 19 | %
(1)CenterPoint Energy’s higher effective tax rate for the three months ended June 30, 2025 compared to the three months ended June 30, 2024 was primarily driven by the impact of the non-deductible goodwill associated with the sale of the Louisiana and Mississippi natural gas LDC businesses and a reduction in favorable tax return true-ups. CenterPoint Energy’s higher effective tax rate for the six months ended June 30, 2025 compared to the six months ended June 30, 2024 was primarily driven by the impact of the non-deductible goodwill associated with the sale of the Louisiana and Mississippi natural gas LDC businesses and a reduction in favorable tax return true-ups. For additional detail, see Note 3. (2)CERC’s lower effective tax rate for the three months ended June 30, 2025 compared to the three months ended June 30, 2024 was primarily driven by a $12 million deferred income tax benefit associated with net operating loss carryforwards at Indiana Gas partially offset by the impact of non-deductible goodwill associated with the sale Louisiana and Mississippi natural gas LDC businesses. CERC’s higher effective tax rate for the six months ended June 30, 2025 compared to the six months ended June 30, 2024 was primarily driven by the impact of the non-deductible goodwill associated with the sale of the Louisiana and Mississippi natural gas LDC businesses. For additional detail, see Note 3.

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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://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 231 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-231 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 + Details
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