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Regulatory Matters (Tables)
12 Months Ended
Dec. 31, 2021
Regulated Operations [Abstract]  
Schedule of Regulatory Assets and Liabilities
The following is a list of regulatory assets and liabilities, excluding amounts related to the Arkansas and Oklahoma Natural Gas businesses classified as held for sale, reflected on the Registrants’ respective Consolidated Balance Sheets as of December 31, 2021 and 2020. For information about regulatory assets and liabilities in held for sale, see Note 4.

 December 31, 2021
CenterPoint EnergyHouston ElectricCERC
(in millions)
Regulatory Assets:
Future amounts recoverable from ratepayers related to:
Benefit obligations (1)
$412 $— $
Asset retirement obligations & other240 45 192 
Net deferred income taxes41 29 
Total future amounts recoverable from ratepayers693 74 199 
Amounts deferred for future recovery related to:
Extraordinary gas costs1,528 — 1,454 
Cost recovery riders124 — — 
Hurricane and February 2021 Winter Storm Event restoration costs105 105 — 
Other regulatory assets94 57 37 
Gas recovery costs29 — 29 
Decoupling25 — 25 
COVID-19 incremental costs 23 15 
Emergency generation costs21 21 — 
Unrecognized equity return (28)(3)(4)
Total amounts deferred for future recovery1,921 188 1,556 
Amounts currently recovered in customer rates related to:
Authorized trackers and cost deferrals504 24 11 
Securitized regulatory assets420 420 — 
Unamortized loss on reacquired debt and hedging92 67 — 
Gas recovery costs72 — 40 
Extraordinary gas costs66 — 66 
Regulatory assets related to TCJA48 46 
Hurricane Harvey restoration costs43 43 — 
Benefit obligations28 24 
Unrecognized equity return (2)
(171)(97)(12)
Total amounts recovered in customer rates (3)
1,102 527 111 
Total Regulatory Assets$3,716 $789 $1,866 
Total Current Regulatory Assets (4)
$1,395 $— $1,289 
Total Non-Current Regulatory Assets$2,321 $789 $577 
Regulatory Liabilities:
Regulatory liabilities related to TCJA$1,389 $738 $400 
Estimated removal costs1,304 229 452 
Other regulatory liabilities481 205 128 
Total Regulatory Liabilities$3,174 $1,172 $980 
Total Current Regulatory Liabilities (5)
$21 $20 $
Total Non-Current Regulatory Liabilities$3,153 $1,152 $979 
December 31, 2020
CenterPoint EnergyHouston ElectricCERC
(in millions)
Regulatory Assets:
Future amounts recoverable from ratepayers related to:
Benefit obligations (1)
$550 $— $
Asset retirement obligations & other173 39 125 
Net deferred income taxes37 25 
Total future amounts recoverable from ratepayers760 64 132 
Amounts deferred for future recovery related to:
Cost recovery riders221 — — 
Other regulatory assets90 38 52 
Hurricane restoration costs36 36 — 
COVID-19 incremental costs23 18 
Gas recovery costs— 
Decoupling— 
Unrecognized equity return(42)— (5)
Total amounts deferred for future recovery339 79 76 
Amounts currently recovered in customer rates related to:
Securitized regulatory assets633 633 — 
Authorized trackers and cost deferrals332 30 20 
Unamortized loss on reacquired debt and hedging111 73 — 
Hurricane Harvey restoration costs55 55 — 
Benefit obligations37 31 
Regulatory assets related to TCJA25 20 
Gas recovery costs— 
Unrecognized equity return (2)
(187)(137)(8)
Total amounts recovered in customer rates1,013 705 30 
Total Regulatory Assets$2,112 $848 $238 
Total Current Regulatory Assets $18 $— $18 
Total Non-Current Regulatory Assets$2,094 $848 $220 
Regulatory Liabilities:
Regulatory liabilities related to TCJA$1,484 $764 $421 
Estimated removal costs1,470 231 656 
Other regulatory liabilities566 300 178 
Total Regulatory Liabilities$3,520 $1,295 $1,255 
Total Current Regulatory Liabilities (5)
$72 $43 $29 
Total Non-Current Regulatory Liabilities$3,448 $1,252 $1,226 

(1)Pension and postretirement-related regulatory assets balances are measured annually, and the ending amortization period may change based on the actuarial valuation.
(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 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 pending recovery in the next rate proceeding; and (c) CERC’s allowed equity return on post in-service carrying cost associated with certain distribution facilities replacements expenditures in Texas.
(3)Of the $1.1 billion, $527 million and $111 million currently being recovered in customer rates related to CenterPoint Energy, Houston Electric and CERC, respectively, $558 million, $459 million and $7 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 $175 million, $67 million and $69 million for CenterPoint Energy, Houston Electric and CERC, respectively, is 11 years, 23 years and 2 years, respectively. Regulatory assets not earning a return with perpetual or undeterminable lives have been excluded from the weighted average recovery period calculation.
(4)Current regulatory assets for CenterPoint Energy and CERC include extraordinary gas costs of $1,256 million and $1,182 million, respectively.
(5)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:
Year Ended December 31,
202120202019
CenterPoint EnergyHouston ElectricCERCCenterPoint EnergyHouston ElectricCERCCenterPoint EnergyHouston ElectricCERC
(in millions)
Allowed equity return recognized$40 $37 $$31 $31 $— $45 $45 $—