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Revenue Recognition (Tables) | 12 Months Ended
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Dec. 31, 2023
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following tables disaggregate revenues by reportable segment and major source: CenterPoint Energy
|  | Year Ended December 31, 2023
|  | Electric |  | Natural Gas |  | Corporate and Other |  | Total
|  | (in millions)
Revenue from contracts with customers |  | $ | 4,275 |  |  | $ | 4,210 |  |  | $ | 127 |  |  | $ | 8,612 |
Other (1) |  | 15 |  |  | 69 |  |  | 3 |  |  | 87 |
Eliminations |  | — |  |  | (3) |  |  | — |  |  | (3) |
Total revenues |  | $ | 4,290 |  |  | $ | 4,276 |  |  | $ | 130 |  |  | $ | 8,696 |
|  | Year Ended December 31, 2022
|  | Electric |  | Natural Gas |  | Corporate and Other |  | Total
|  | (in millions)
Revenue from contracts with customers |  | $ | 4,095 |  |  | $ | 4,969 |  |  | $ | 263 |  |  | $ | 9,327 |
Other (1) |  | 13 |  |  | (23) |  |  | 4 |  |  | (6) |
Total revenues |  | $ | 4,108 |  |  | $ | 4,946 |  |  | $ | 267 |  |  | $ | 9,321 |
|  | Year Ended December 31, 2021
|  | Electric |  | Natural Gas |  | Corporate and Other |  | Total
|  | (in millions)
Revenue from contracts with customers |  | $ | 3,726 |  |  | $ | 4,281 |  |  | $ | 249 |  |  | $ | 8,256 |
Other (1) |  | 37 |  |  | 55 |  |  | 4 |  |  | 96 |
Total revenues |  | $ | 3,763 |  |  | $ | 4,336 |  |  | $ | 253 |  |  | $ | 8,352 |
(1)Primarily consists of income from ARPs and leases. Total lease income was $8 million, $7 million and $7 million for each of the years ended December 31, 2023, 2022 and 2021, respectively. Houston Electric
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
| (in millions)
Revenue from contracts with customers | $ | 3,684 |  |  | $ | 3,417 |  |  | $ | 3,117 |
Other (1) | (7) |  |  | (5) |  |  | 17 |
Total revenues | $ | 3,677 |  |  | $ | 3,412 |  |  | $ | 3,134 |
(1)Primarily consists of income from ARPs and leases. Lease income was not significant for the years ended December 31, 2023, 2022, and 2021. CERC
|  | Year Ended December 31,
|  | 2023 |  | 2022 |  | 2021
|  | (in millions)
Revenue from contracts with customers |  | $ | 4,083 |  |  | $ | 4,816 |  |  | $ | 4,148 |
Other (1) |  | 66 |  |  | (16) |  |  | 52 |
Total revenues |  | $ | 4,149 |  |  | $ | 4,800 |  |  | $ | 4,200 |
(1)Primarily consists of income from ARPs and leases. Lease income was $4 million, $3 million and $3 million, respectively, for the years ended December 31, 2023, 2022 and 2021.
Contract with Customer, Asset and Liability | The opening and closing balances of accounts receivable, other accrued unbilled revenue, contract assets and contract liabilities from contracts with customers are as follows: CenterPoint Energy
| Accounts Receivable |  | Other Accrued Unbilled Revenues |  | Contract Assets (1) |  | Contract Liabilities (1) |  |
| (in millions) |  |
Opening balance as of December 31, 2022 | $ | 858 |  |  | $ | 764 |  |  | $ | 4 |  |  | $ | 45 |  |  |
Closing balance as of December 31, 2023 | 652 |  |  | 516 |  |  | — |  |  | 2 |  |  |
Increase (decrease) | $ | (206) |  |  | $ | (248) |  |  | $ | (4) |  |  | $ | (43) |  |  |
(1) Decrease primarily related to the completed sale of Energy Systems Group on June 30, 2023. The amount of revenue recognized in the year ended December 31, 2023 that was included in the opening contract liability was $2 million. Houston Electric
| Accounts Receivable |  | Other Accrued Unbilled Revenues |  | Contract Liabilities
| (in millions) |  |
Opening balance as of December 31, 2022 | $ | 271 |  |  | $ | 142 |  |  | $ | 2 |  |  |
Closing balance as of December 31, 2023 | 275 |  |  | 142 |  |  | 2 |  |  |
Increase | $ | 4 |  |  | $ | — |  |  | $ | — |  |  |
The amount of revenue recognized in the year ended December 31, 2023 that was included in the opening contract liability was $2 million. CERC
| Accounts Receivable |  | Other Accrued Unbilled Revenues |
| (in millions) |  |
Opening balance as of December 31, 2022 | $ | 478 |  |  | $ | 573 |  |  |
Closing balance as of December 31, 2023 | 330 |  |  | 329 |  |  |
Decrease | $ | (148) |  |  | $ | (244) |  |  |
Accounts Receivable, Allowance for Credit Loss | The table below summarizes the Registrants’ bad debt expense amounts for 2023, 2022 and 2021, net of regulatory deferrals, including those related to COVID-19:
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
| CenterPoint Energy |  | Houston Electric |  | CERC |  | CenterPoint Energy |  | Houston Electric |  | CERC |  | CenterPoint Energy |  | Houston Electric |  | CERC
| (in millions)
Bad debt expense | $ | 18 |  |  | $ | — |  |  | $ | 16 |  |  | $ | 20 |  |  | $ | — |  |  | $ | 17 |  |  | $ | 12 |  |  | $ | — |  |  | $ | 10 |
Bad debt expense deferred as regulatory asset | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 16 |  |  | 8 |  |  | 8 |

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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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