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Revenue Recognition (Tables) | 9 Months Ended
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Sep. 30, 2025
Revenue from Contract with Customer [Abstract] |
Schedule of Disaggregation of Revenue | The following tables disaggregate revenues by reportable segment and major source: CenterPoint Energy
| Three Months Ended September 30, 2025
| Electric |  | Natural Gas |  | Corporate and Other |  | Total
| (in millions)
Revenue from contracts with customers | $ | 1,372 |  |  | $ | 617 |  |  | $ | 1 |  |  | $ | 1,990 |
Other (1) | (7) |  |  | 5 |  |  | — |  |  | (2) |
Total revenues | $ | 1,365 |  |  | $ | 622 |  |  | $ | 1 |  |  | $ | 1,988 |
| Three Months Ended September 30, 2024
| Electric |  | Natural Gas |  | Corporate and Other |  | Total
| (in millions)
Revenue from contracts with customers | $ | 1,245 |  |  | $ | 603 |  |  | $ | 1 |  |  | $ | 1,849 |
Other (1) | (2) |  |  | 8 |  |  | 1 |  |  | 7 |
Total revenues | $ | 1,243 |  |  | $ | 611 |  |  | $ | 2 |  |  | $ | 1,856 |
| Nine Months Ended September 30, 2025
| Electric |  | Natural Gas |  | Corporate and Other |  | Total
| (in millions)
Revenue from contracts with customers | $ | 3,639 |  |  | $ | 3,256 |  |  | $ | 4 |  |  | $ | 6,899 |
Other (1) | (17) |  |  | (30) |  |  | 2 |  |  | (45) |
Eliminations | — |  |  | (2) |  |  | — |  |  | (2) |
Total revenues | $ | 3,622 |  |  | $ | 3,224 |  |  | $ | 6 |  |  | $ | 6,852 |
| Nine Months Ended September 30, 2024
| Electric |  | Natural Gas |  | Corporate and Other |  | Total
| (in millions)
Revenue from contracts with customers | $ | 3,504 |  |  | $ | 2,842 |  |  | $ | 3 |  |  | $ | 6,349 |
Other (1) | (5) |  |  | 34 |  |  | 3 |  |  | 32 |
Total revenues | $ | 3,499 |  |  | $ | 2,876 |  |  | $ | 6 |  |  | $ | 6,381 |
(1)Primarily consists of income from ARPs and leases. Houston Electric
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2025 |  | 2024 |  | 2025 |  | 2024
| (in millions)
Revenue from contracts with customers | $ | 1,139 |  |  | $ | 1,065 |  |  | $ | 3,045 |  |  | $ | 3,024 |
Other (1) | (7) |  |  | (7) |  |  | (21) |  |  | (21) |
Total revenues | $ | 1,132 |  |  | $ | 1,058 |  |  | $ | 3,024 |  |  | $ | 3,003 |
(1)Primarily consists of income from ARPs and leases. CERC
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2025 |  | 2024 |  | 2025 |  | 2024
| (in millions)
Revenue from contracts with customers | $ | 602 |  |  | $ | 593 |  |  | $ | 3,157 |  |  | $ | 2,760 |
Other (1) | 5 |  |  | 7 |  |  | (31) |  |  | 31 |
Total revenues | $ | 607 |  |  | $ | 600 |  |  | $ | 3,126 |  |  | $ | 2,791 |
(1)Primarily consists of income from ARPs and leases.
Schedule of Contract with Customers | The opening and closing balances of accounts receivable and accrued unbilled revenues from contracts with customers are as follows: CenterPoint Energy
| Accounts Receivable (1) |  | Accrued Unbilled Revenues |  |
| (in millions)
Opening balance as of December 31, 2024 | $ | 666 |  |  | $ | 521 |  |  |
Closing balance as of September 30, 2025 | 703 |  |  | 448 |  |  |
Increase (decrease) | $ | 37 |  |  | $ | (73) |  |  |
(1)Excludes balances related to customer or vendor cost reimbursements and insurance that are not attributable to revenues from contracts with customers. The opening balance as of December 31, 2024 also excluded receivables associated with the sale of CERC Corp.’s Louisiana and Mississippi natural gas LDC businesses. Houston Electric
| Accounts Receivable (1) |  | Accrued Unbilled Revenues |  |  |  |
| (in millions)
Opening balance as of December 31, 2024 | $ | 284 |  |  | $ | 137 |  |  |  |  |
Closing balance as of September 30, 2025 | 422 |  |  | 270 |  |  |  |  |
Increase | $ | 138 |  |  | $ | 133 |  |  |  |  |
(1)Excludes balances related to customer or vendor cost reimbursements and insurance that are not attributable to revenues from contracts with customers. CERC
| Accounts Receivable (1) |  | Accrued Unbilled Revenues |  |  |  |
| (in millions) |  |
Opening balance as of December 31, 2024 | $ | 326 |  |  | $ | 338 |  |  |  |  |  |  |
Closing balance as of September 30, 2025 | 218 |  |  | 119 |  |  |  |  |  |  |
Decrease | $ | (108) |  |  | $ | (219) |  |  |  |  |  |  |
(1)Excludes balances related to customer or vendor cost reimbursements and insurance that are not attributable to revenues from contracts with customers. The opening balance as of December 31, 2024 also excluded receivables associated with the sale of CERC Corp.’s Louisiana and Mississippi natural gas LDC businesses.

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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