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Regulatory Matters (Tables) | 12 Months Ended
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Dec. 31, 2024
Regulated Operations [Abstract] |
Schedule of Regulatory Assets and Liabilities | The following is a list of regulatory assets and liabilities reflected on the Registrants’ respective Consolidated Balance Sheets as of December 31, 2024 and 2023:
| December 31, 2024
| CenterPoint Energy |  | Houston Electric |  | CERC
| (in millions)
Regulatory Assets: |  |  |  |  |
Future amounts recoverable from ratepayers related to: |  |  |  |  |
Benefit obligations (1) | $ | 373 |  |  | $ | — |  |  | $ | 4 |
Asset retirement obligations & other | 304 |  |  | 80 |  |  | 188 |
Net deferred income taxes | 144 |  |  | 47 |  |  | 69 |
Total future amounts recoverable from ratepayers | 821 |  |  | 127 |  |  | 261 |
Amounts deferred for future recovery related to: |  |  |  |  |
Cost recovery riders | 145 |  |  | — |  |  | 83 |
Hurricanes and February 2021 Winter Storm Event Restoration Costs | 145 |  |  | 145 |  |  | — |
May 2024 Storm Events | 86 |  |  | 86 |  |  | — |
Hurricane Beryl | 458 |  |  | 458 |  |  | — |
Hurricane Francine | 19 |  |  | 19 |  |  | — |
Other regulatory assets | 177 |  |  | 87 |  |  | 74 |
Decoupling | 12 |  |  | — |  |  | 12 |
Temporary generation costs | 71 |  |  | 71 |  |  | — |
Unrecognized equity return (2) | (115) |  |  | (77) |  |  | (30) |
Total amounts deferred for future recovery | 998 |  |  | 789 |  |  | 139 |
Amounts currently recovered in customer rates related to: |  |  |  |  |
Authorized trackers and cost deferrals | 600 |  |  | 47 |  |  | 440 |
Securitized regulatory assets | 343 |  |  | — |  |  | — |
Unamortized loss on reacquired debt and hedging | 93 |  |  | 63 |  |  | 10 |
Gas recovery costs | 122 |  |  | — |  |  | 122 |
Decoupling | 38 |  |  | — |  |  | 38 |
Extraordinary gas costs | 133 |  |  | — |  |  | 133 |
Regulatory assets related to TCJA | 47 |  |  | 47 |  |  | — |
Hurricanes and February 2021 Winter Storm Event Restoration Costs | 31 |  |  | 5 |  |  | 26 |
Other regulatory assets | 34 |  |  | — |  |  | 34 |
Benefit obligations | 4 |  |  | 4 |  |  | — |
Temporary generation costs | 219 |  |  | 219 |  |  | — |
Unrecognized equity return (3) | (136) |  |  | (17) |  |  | (62) |
Total amounts recovered in customer rates (5) | 1,528 |  |  | 368 |  |  | 741 |
Total Regulatory Assets | $ | 3,347 |  |  | $ | 1,284 |  |  | $ | 1,141 |
Total Current Regulatory Assets | $ | 239 |  |  | $ | — |  |  | $ | 238 |
Total Non-Current Regulatory Assets | $ | 3,108 |  |  | $ | 1,284 |  |  | $ | 903 |
Regulatory Liabilities: |  |  |  |  |
Regulatory liabilities related to TCJA | $ | 1,346 |  |  | $ | 673 |  |  | $ | 501 |
Estimated removal costs | 1,247 |  |  | — |  |  | 1,191 |
Other regulatory liabilities | 454 |  |  | 195 |  |  | 235 |
Total Regulatory Liabilities | $ | 3,047 |  |  | $ | 868 |  |  | $ | 1,927 |
Total Current Regulatory Liabilities (6) | $ | 48 |  |  | $ | 7 |  |  | $ | 40 |
Total Non-Current Regulatory Liabilities | $ | 2,999 |  |  | $ | 861 |  |  | $ | 1,887 |
| December 31, 2023
| CenterPoint Energy |  | Houston Electric |  | CERC
| (in millions)
Regulatory Assets: |  |  |  |  |
Future amounts recoverable from ratepayers related to: |  |  |  |  |
Benefit obligations (1) | $ | 379 |  |  | $ | — |  |  | $ | 5 |
Asset retirement obligations & other | 290 |  |  | 75 |  |  | 186 |
Net deferred income taxes | 96 |  |  | 41 |  |  | 42 |
Total future amounts recoverable from ratepayers | 765 |  |  | 116 |  |  | 233 |
Amounts deferred for future recovery related to: |  |  |  |  |
Cost recovery riders | 113 |  |  | — |  |  | 73 |
Hurricanes and February 2021 Winter Storm Event restoration costs | 149 |  |  | 123 |  |  | 26 |
Other regulatory assets | 147 |  |  | 59 |  |  | 72 |
Gas recovery costs | 27 |  |  | — |  |  | 27 |
Decoupling | 17 |  |  | — |  |  | 17 |
COVID-19 incremental costs | 12 |  |  | 8 |  |  | 4 |
Temporary generation costs | 48 |  |  | 48 |  |  | — |
Unrecognized equity return (2) | (63) |  |  | (39) |  |  | (16) |
Total amounts deferred for future recovery | 450 |  |  | 199 |  |  | 203 |
Amounts currently recovered in customer rates related to: |  |  |  |  |
Authorized trackers and cost deferrals | 535 |  |  | 44 |  |  | 375 |
Securitized regulatory assets | 434 |  |  | 74 |  |  | — |
Unamortized loss on reacquired debt and hedging | 106 |  |  | 72 |  |  | 11 |
Gas recovery costs | 34 |  |  | — |  |  | 34 |
Extraordinary gas costs | 208 |  |  | — |  |  | 208 |
Regulatory assets related to TCJA | 47 |  |  | 47 |  |  | — |
Hurricane Harvey restoration costs | 17 |  |  | 17 |  |  | — |
Benefit obligations | 11 |  |  | 11 |  |  | — |
Temporary generation costs | 208 |  |  | 208 |  |  | — |
Unrecognized equity return (4) | (141) |  |  | (36) |  |  | (53) |
Total amounts recovered in customer rates | 1,459 |  |  | 437 |  |  | 575 |
Total Regulatory Assets | $ | 2,674 |  |  | $ | 752 |  |  | $ | 1,011 |
Total Current Regulatory Assets | $ | 161 |  |  | $ | — |  |  | $ | 161 |
Total Non-Current Regulatory Assets | $ | 2,513 |  |  | $ | 752 |  |  | $ | 850 |
Regulatory Liabilities: |  |  |  |  |
Regulatory liabilities related to TCJA | $ | 1,377 |  |  | $ | 695 |  |  | $ | 505 |
Estimated removal costs | 1,322 |  |  | 91 |  |  | 1,150 |
Other regulatory liabilities | 548 |  |  | 245 |  |  | 260 |
Total Regulatory Liabilities | $ | 3,247 |  |  | $ | 1,031 |  |  | $ | 1,915 |
Total Current Regulatory Liabilities (6) | $ | 39 |  |  | $ | 6 |  |  | $ | 33 |
Total Non-Current Regulatory Liabilities | $ | 3,208 |  |  | $ | 1,025 |  |  | $ | 1,882 |
(1)Pension and postretirement-related regulatory assets balances are actuarially valued annually. (2)Represents the following: (a) CenterPoint Energy’s allowed equity return on post in-service carrying cost generally associated with investments in Indiana; (b) Houston Electric’s allowed equity return on TEEEF costs and storm restoration costs; and (c) CERC’s allowed equity return on post in-service carrying cost associated with certain distribution facilities replacements expenditures in Texas. (3)Represents the following: (a) CenterPoint Energy’s allowed equity return on post in-service carrying cost generally associated with investments in Indiana; (b) Houston Electric’s allowed equity return on certain storm restoration balances and (c) CERC’s allowed equity return on post in-service carrying cost associated with certain distribution facilities replacements expenditures in Texas. (4)Represents the following: (a) CenterPoint Energy’s allowed equity return on post in-service carrying cost generally associated with investments in Indiana; (b) 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 balances; and (c) CERC’s allowed equity return on post in-service carrying cost associated with certain distribution facilities replacements expenditures in Texas. (5)Of the $1.5 billion, $368 million and $741 million currently being recovered in customer rates related to CenterPoint Energy, Houston Electric and CERC, respectively, $463 million, $305 million and $158 million is earning a return, respectively. The weighted average recovery period of regulatory assets currently being recovered in base rates, not earning a return, which totals $424 million, $63 million and $328 million for CenterPoint Energy, Houston Electric and CERC, respectively, is 11 years, 27 years and 7 years, respectively. Regulatory assets not earning a return with perpetual or undeterminable lives have been excluded from the weighted average recovery period calculation. (6)Current regulatory liabilities are included in Other current liabilities in each of the Registrants’ respective Consolidated Balance Sheets. The table below reflects the amount of allowed equity return recognized by each Registrant in its Statements of Consolidated Income for the periods presented:
| Year Ended December 31,
| 2024 |  | 2023 |  | 2022
| CenterPoint Energy |  | Houston Electric |  | CERC |  | CenterPoint Energy |  | Houston Electric |  | CERC |  | CenterPoint Energy |  | Houston Electric |  | CERC
| (in millions)
Allowed equity return recognized | $ | 23 |  |  | $ | 20 |  |  | $ | 2 |  |  | $ | 41 |  |  | $ | 38 |  |  | $ | 2 |  |  | $ | 45 |  |  | $ | 42 |  |  | $ | 2 |

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