XML 72 R48.htm IDEA: XBRL DOCUMENT
v3.23.3

Regulatory Matters (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2023
Regulatory Assets and Liabilities, Other Disclosure [Abstract] |
Schedule of Allowed Equity Return Not Recognized | The recoverable allowed equity return not yet recognized by the Registrants is as follows:
| September 30, 2023 |  | December 31, 2022
| CenterPoint Energy (1) |  | Houston Electric (2) |  | CERC (3) |  | CenterPoint Energy (1) |  | Houston Electric (2) |  | CERC (3)
| (in millions)
Allowed equity return not recognized | $ | 205 |  |  | $ | 81 |  |  | $ | 66 |  |  | $ | 188 |  |  | $ | 82 |  |  | $ | 54 |
(1)In addition to the amounts described in (2) and (3) below, represents CenterPoint Energy’s allowed equity return on post in-service carrying cost, including investments at SIGECO and securitized qualified costs associated with the completed retirements of SIGECO’s A.B. Brown coal-fired generation facilities. (2)Represents Houston Electric’s allowed equity return on its true-up balance of stranded costs, other changes and related interest resulting from the formerly integrated electric utilities prior to Texas deregulation to be recovered in rates through 2024 and certain storm restoration, TEEEF and LLTF balances. (3)CERC’s allowed equity return on post in-service carrying cost associated with certain distribution facilities replacements expenditures in Texas and costs associated with investments in Indiana.
Schedule of Amount Allowed Equity Return Recognized in Period | The table below reflects the amount of allowed equity return recognized by each Registrant in its Condensed Statements of Consolidated Income:
| Three Months Ended September 30,
| 2023 |  | 2022
| CenterPoint Energy |  | Houston Electric |  | CERC |  | CenterPoint Energy |  | Houston Electric |  | CERC
| (in millions)
Allowed equity return recognized | $ | 14 |  |  | $ | 14 |  |  | $ | — |  |  | $ | 14 |  |  | $ | 12 |  |  | $ | 1 |
| Nine Months Ended September 30,
| 2023 |  | 2022
| CenterPoint Energy |  | Houston Electric |  | CERC |  | CenterPoint Energy |  | Houston Electric |  | CERC
| (in millions)
Allowed equity return recognized | $ | 32 |  |  | $ | 30 |  |  | $ | 1 |  |  | $ | 36 |  |  | $ | 33 |  |  | $ | 2 |

X
- Definition Allowed Equity Return Not Recognized + References No definition available. + Details
Name: | cnp_AllowedEquityReturnNotRecognizedTableTextBlock
Namespace Prefix: | cnp_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule Of Allowed Equity Return Recognized + References No definition available. + Details
Name: | cnp_ScheduleOfAllowedEquityReturnRecognizedTableTextBlock
Namespace Prefix: | cnp_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RegulatoryAssetsAndLiabilitiesOtherDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration