XML 214 R50.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Property, Plant and Equipment (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2024
Property, Plant and Equipment [Abstract] |
Schedule of Property, Plant and Equipment | Property, plant and equipment includes the following:
|  |  | December 31, 2024 |  | December 31, 2023
| Weighted Average Useful Lives |  | Property, Plant and Equipment, Gross |  | Accumulated Depreciation & Amortization |  | Property, Plant and Equipment, Net |  | Property, Plant and Equipment, Gross |  | Accumulated Depreciation & Amortization |  | Property, Plant and Equipment, Net
| (in years) |  | (in millions)
CenterPoint Energy |  |  |  |  |  |  |  |  |  |  |  |  |
Electric transmission and distribution | 37 |  | $ | 21,387 |  |  | $ | 4,810 |  |  | $ | 16,577 |  |  | $ | 19,151 |  |  | $ | 4,762 |  |  | $ | 14,389 |
Electric generation (1) | 25 |  | 1,107 |  |  | 154 |  |  | 953 |  |  | 1,381 |  |  | 315 |  |  | 1,066 |
Natural gas distribution | 32 |  | 16,399 |  |  | 4,326 |  |  | 12,073 |  |  | 16,492 |  |  | 4,337 |  |  | 12,155 |
Finance ROU asset (2) | 7.5 |  | 662 |  |  | 232 |  |  | 430 |  |  | 662 |  |  | 136 |  |  | 526 |
Other property | 22 |  | 3,112 |  |  | 1,056 |  |  | 2,056 |  |  | 2,710 |  |  | 993 |  |  | 1,717 |
Total |  |  | $ | 42,667 |  |  | $ | 10,578 |  |  | $ | 32,089 |  |  | $ | 40,396 |  |  | $ | 10,543 |  |  | $ | 29,853 |
|  |  | December 31, 2024 |  | December 31, 2023
| Weighted Average Useful Lives |  | Property, Plant and Equipment, Gross |  | Accumulated Depreciation & Amortization |  | Property, Plant and Equipment, Net |  | Property, Plant and Equipment, Gross |  | Accumulated Depreciation & Amortization |  | Property, Plant and Equipment, Net
| (in years) |  | (in millions)
Houston Electric |  |  |  |  |  |  |  |  |  |  |  |  |
Electric transmission and distribution | 37 |  | $ | 18,645 |  |  | $ | 3,647 |  |  | $ | 14,998 |  |  | $ | 16,800 |  |  | $ | 3,641 |  |  | $ | 13,159 |
Finance ROU asset (2) | 7.5 |  | 662 |  |  | 232 |  |  | 430 |  |  | 662 |  |  | 136 |  |  | 526 |
Other property | 20 |  | 2,443 |  |  | 749 |  |  | 1,694 |  |  | 2,053 |  |  | 692 |  |  | 1,361 |
Total |  |  | $ | 21,750 |  |  | $ | 4,628 |  |  | $ | 17,122 |  |  | $ | 19,515 |  |  | $ | 4,469 |  |  | $ | 15,046 |
CERC |  |  |  |  |  |  |  |  |  |  |  |  |
Natural gas distribution | 32 |  | $ | 15,474 |  |  | $ | 4,118 |  |  | $ | 11,356 |  |  | $ | 15,591 |  |  | $ | 4,136 |  |  | $ | 11,455 |
Other property | 11 |  | 78 |  |  | 28 |  |  | 50 |  |  | 81 |  |  | 33 |  |  | 48 |
Total |  |  | $ | 15,552 |  |  | $ | 4,146 |  |  | $ | 11,406 |  |  | $ | 15,672 |  |  | $ | 4,169 |  |  | $ | 11,503 |
(1)SIGECO and AGC owned a 300 MW unit at the Warrick Power Plant (Warrick Unit 4) as tenants in common as of December 31, 2023. SIGECO’s share of the cost of this unit as of December 31, 2023, was $198 million with accumulated depreciation totaling $171 million. Under the operating agreement, AGC and SIGECO shared equally in the cost of operation and output of the unit. SIGECO’s share of operating costs was included in Operation and maintenance expense in CenterPoint Energy’s Statements of Consolidated Income. SIGECO exited joint operations of Warrick Unit 4 on January 1, 2024. (2)Houston Electric recognized a finance ROU asset as of December 31, 2024 and December 31, 2023 related to temporary generation. See Note 19 for further discussion.
Schedule of Depreciation and Amortization | The following table presents depreciation and amortization expense for 2024, 2023 and 2022:
| Year Ended December 31,
| 2024 |  | 2023 |  | 2022
| CenterPoint Energy |  | Houston Electric |  | CERC |  | CenterPoint Energy |  | Houston Electric |  | CERC |  | CenterPoint Energy |  | Houston Electric |  | CERC
| (in millions)
Depreciation | $ | 1,177 |  |  | $ | 545 |  |  | $ | 492 |  |  | $ | 1,092 |  |  | $ | 484 |  |  | $ | 459 |  |  | $ | 1,013 |  |  | $ | 434 |  |  | $ | 420 |
Amortization of securitized regulatory assets | 90 |  |  | 74 |  |  | — |  |  | 163 |  |  | 155 |  |  | — |  |  | 191 |  |  | 191 |  |  | — |
Other amortization | 172 |  |  | 143 |  |  | 30 |  |  | 146 |  |  | 109 |  |  | 34 |  |  | 84 |  |  | 45 |  |  | 28 |
Total | $ | 1,439 |  |  | $ | 762 |  |  | $ | 522 |  |  | $ | 1,401 |  |  | $ | 748 |  |  | $ | 493 |  |  | $ | 1,288 |  |  | $ | 670 |  |  | $ | 448 |
Schedule of Asset Retirement Obligation | A reconciliation of the changes in the ARO liability recorded in Other non-current liabilities on each of the Registrants’ respective Consolidated Balance Sheets is as follows:
| December 31, 2024 |  | December 31, 2023
| CenterPoint Energy |  | Houston Electric |  | CERC |  | CenterPoint Energy |  | Houston Electric |  | CERC
| (in millions)
Beginning balance | $ | 590 |  |  | $ | 40 |  |  | $ | 380 |  |  | $ | 610 |  |  | $ | 36 |  |  | $ | 420 |
Additions | 11 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Accretion expense (1) | 21 |  |  | 1 |  |  | 16 |  |  | 23 |  |  | 1 |  |  | 16 |
Revisions in estimates (2) | (34) |  |  | (2) |  |  | (33) |  |  | (43) |  |  | 3 |  |  | (56) |
Ending balance | $ | 588 |  |  | $ | 39 |  |  | $ | 363 |  |  | $ | 590 |  |  | $ | 40 |  |  | $ | 380 |
(1)Reflected in Regulatory assets on each of the Registrants’ respective Consolidated Balance Sheets. (2)In 2024 and 2023, CenterPoint Energy and CERC reflected a decrease in their respective ARO liability, which was primarily attributable to increases in the long-term interest rates used for discounting in the ARO calculation. In 2024, Houston Electric reflected a decrease in its ARO liability attributable to an increase in discount rates, while in 2023, Houston Electric reflected an increase in its ARO liability attributable to an increase in discount rates and disposal costs.

X
- Definition This element can be used to encapsulate the entire disclosure for depreciation and amortization expense for the period. + References No definition available. + Details
Name: | cnp_DepreciationAndAmortizationTableTextBlock
Namespace Prefix: | cnp_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 360 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 + Details
Name: | us-gaap_PropertyPlantAndEquipmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481850/410-20-50-1 + Details
Name: | us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration