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Reportable Segments
 9 Months Ended
Sep. 30, 2022
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. Certain prior year amounts have been reclassified for discontinued operations as described below. Additionally, during the nine months ended September 30, 2022, CenterPoint Energy sold certain assets previously owned by entities within Corporate and Other to businesses within the Electric and Natural Gas reportable segments. Prior year amounts were reclassified as a result of this transaction in the nine months ended September 30, 2022 and as described in the combined 2021 Form 10-K.

In 2021, CenterPoint Energy’s equity investment in Enable was classified and presented as held for sale and discontinued operations. On December 2, 2021, Enable completed the previously announced Enable Merger pursuant to the Enable Merger Agreement entered into on February 16, 2021. See Note 3 for further information.

As of September 30, 2022, reportable segments by Registrant were 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 through Energy Systems Group and other corporate operations which support all of the business operations of CenterPoint Energy.

Houston Electric

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

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.

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

CenterPoint Energy
Three Months Ended September 30,
20222021
Revenues from
External
Customers		Net Income (Loss)Revenues from
External
Customers		Net Income (Loss)
(in millions)
Electric$1,146 (1)$234 $1,056 (1)$185 
Natural Gas 692 (10)619 5 
Corporate and Other65 (22)74 (40)
Continuing Operations$1,903 202 $1,749 150 
Discontinued Operations, net— 68 
Consolidated$202 $218 
Nine Months Ended September 30,
20222021
Revenues from
External
Customers		Net IncomeRevenues from
External
Customers		Net Income (Loss)
(in millions)
Electric$3,092 (1)$489 $2,823 (1)$385 
Natural Gas 3,334 416 3,022 308 
Corporate and Other184 18 193 (63)
Continuing Operations$6,610 923 $6,038 630 
Discontinued Operations, net— 202 
Consolidated$923 $832 

(1)Houston Electric revenues from major external customers are as follows (CenterPoint Energy and Houston Electric):
Three Months Ended September 30,Nine Months Ended September 30,
2022202120222021
(in millions)
Affiliates of NRG$327 $285 $797 $672 
Affiliates of Vistra Energy Corp.153 128 372 303 
Total Assets
September 30, 2022December 31, 2021
(in millions)
Electric$18,524 $16,548 
Natural Gas 16,796 16,270 
Corporate and Other, net of eliminations (1)
1,399 2,523 
Continuing Operations36,719 35,341 
Assets Held for Sale— 2,338 
Consolidated$36,719 $37,679 

(1)Total assets included pension and other postemployment-related regulatory assets of $424 million and $427 million as of September 30, 2022 and December 31, 2021, respectively.

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.