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Reportable Segments
 12 Months Ended
Dec. 31, 2023
Segment Reporting [Abstract]  
Reportable Segments Reportable Segments
The Registrants’ determination of reportable segments considers the strategic operating units under which its CODM manages sales, allocates resources and assesses performance of various products and services to wholesale or retail customers in differing regulatory environments. Each Registrant’s CODM views net income as the measure of profit or loss for the reportable segments.
As of December 31, 2023, reportable segments by Registrant are as follows:

CenterPoint Energy

•CenterPoint Energy’s Electric reportable segment consisted of electric transmission and distribution services in the Texas gulf coast area in the ERCOT region and electric transmission and distribution services primarily to southwestern Indiana and includes power generation and wholesale power operations in the MISO region.

•CenterPoint Energy’s Natural Gas reportable segment consists of (i) intrastate natural gas sales to, and natural gas transportation and distribution for residential, commercial, industrial and institutional customers in Indiana, Louisiana, Minnesota, Mississippi, Ohio and Texas; and (ii) permanent pipeline connections through interconnects with various interstate and intrastate pipeline companies through CEIP.

•CenterPoint Energy’s Corporate and Other category consists of energy performance contracting and sustainable infrastructure services by Energy Systems Group through June 30, 2023, the date of the sale of Energy Systems Group, and corporate support operations that support all of CenterPoint Energy’s business operations. CenterPoint Energy’s Corporate and Other also includes office buildings and other real estate used for business operations.

Houston Electric

•Houston Electric’s single reportable segment consisted of electric transmission services to transmission service customers in the ERCOT region and distribution service to REPs in the Texas gulf coast area that includes the city of Houston.

CERC

•CERC’s single reportable segment following the Restructuring consisted of (i) intrastate natural gas sales to, and natural gas transportation and distribution for residential, commercial, industrial and institutional customers in Indiana, Louisiana, Minnesota, Mississippi, Ohio and Texas; and (ii) permanent pipeline connections through interconnects with various interstate and intrastate pipeline companies through CEIP.

Expenditures for long-lived assets include property, plant and equipment. Intersegment sales are eliminated in consolidation, except as described in Note 4.

Financial data for reportable segments is as follows, including Discontinued Operations for reconciliation purposes:

CenterPoint Energy
 Revenues
from
External
Customers
Intersegment Revenues
Depreciation
and
Amortization		Interest Income (1)Interest ExpenseIncome Tax Expense
(Benefit)		Net Income (Loss)
(in millions)
For the year ended December 31, 2023:    
 
Electric $4,290 $— $872 $19 $(303)$189 $654 
Natural Gas4,276 3 513 10 (188)(25)533 
Corporate and Other130 — 16 34 (264)6 (270)
Eliminations— (3)— (54)54 — — 
Consolidated
$8,696 $— $1,401 $9 $(701)$170 917 
For the year ended December 31, 2022:     
Electric$4,108 $— $793 $4 $(235)$147 $603 
Natural Gas4,946 — 466 2 (137)243 492 
Corporate and Other267 — 29 59 (214)(30)(38)
Eliminations— — — (62)62 — — 
Consolidated
$9,321 $— $1,288 $3 $(524)$360 1,057 
 Revenues
from
External
Customers
Intersegment Revenues
Depreciation
and
Amortization		Interest Income (1)Interest ExpenseIncome Tax Expense
(Benefit)		Net Income (Loss)
(in millions)
For the year ended December 31, 2021:     
Electric$3,763 $— $775 $— $(226)$95 $475 
Natural Gas4,336 — 527 1 (141)80 403 
Corporate and Other253 — 14 118 (278)(65)(210)
Eliminations— — — (116)116 — — 
Continuing Operations
$8,352 $— $1,316 $3 $(529)$110 668 
Discontinued Operations, net
818 
Consolidated
$1,486 
(1) Interest income from Securitization Bonds of $4 million, less than $1 million, and $1 million for the years ended December 31, 2023, 2022 and 2021, respectively, is included in Other income, net on both CenterPoint Energy’s and Houston Electric’s respective Statements of Consolidated Income.
Total AssetsExpenditures for Long-lived Assets
December 31, December 31,
 2023
 
2022202320222021
(in millions)
Electric$21,089 $19,024 $2,660 $2,611 $2,008 
Natural Gas17,429 18,043 1,697 1,697 1,178 
Corporate and Other, net of eliminations (1)
1,197 1,479 13 107 42 
Continuing Operations
39,715 
 
38,546 4,370 4,415 3,228 
Divestitures/Discontinued Operations
— — — 3 171 
Consolidated
$39,715 $38,546 $4,370 $4,418 $3,399 

(1)Total assets included pension and other postemployment-related regulatory assets of $385 million and $405 million as of December 31, 2023 and 2022, respectively.

Divestitures and Discontinued Operations (CenterPoint Energy and CERC)

For further information regarding CenterPoint Energy’s and CERC’s divestitures and discontinued operations, see Note 4.

Houston Electric

Houston Electric consists of a single reportable segment; therefore, a tabular reportable segment presentation has not been
included.

CERC

CERC consists of a single reportable segment; therefore, a tabular reportable segment presentation has not been included.

Major Customers (Houston Electric)

Houston Electric’s revenues from major external customers are as follows:

Year Ended December 31,
202320222021
(in millions)
Affiliates of NRG$1,106 $1,046 $905 
Affiliates of Vistra Energy Corp.539 489 410 
Revenues by Products and Services
 Year Ended December 31,
202320222021
Revenues by Products and Services:
CenterPoint EnergyHouston ElectricCERCCenterPoint EnergyHouston ElectricCERC CenterPoint EnergyHouston Electric
CERC
 (in millions)
Electric delivery$3,701 $3,677 $— $3,438 $3,412 $— $3,158 $3,134 $— 
Retail electric sales569 — — 630 — — 559 — — 
Wholesale electric sales20 — — 40 — — 46 — — 
Retail gas sales4,078 — 3,951 4,759 — 4,613 4,157 — 4,021 
Gas transportation
11 — 11 12 — 12 12 — 12 
Energy products and services
317 — 187 442 — 175 420 — 167 
Total$8,696 $3,677 $4,149 $9,321 $3,412 $4,800 $8,352 $3,134 $4,200