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Goodwill and Other Intangibles (CenterPoint Energy and CERC) (Tables) | 3 Months Ended
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Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | CenterPoint Energy’s goodwill by reportable segment as of both March 31, 2023 and December 31, 2022 is as follows:
|  |  |  |  |  |  |  | (in millions)
Electric (1) |  |  |  |  |  |  |  | $ | 936 |
Natural Gas |  |  |  |  |  |  |  | 2,920 |
Corporate and Other |  |  |  |  |  |  |  | 438 |
Total |  |  |  |  |  |  |  | $ | 4,294 |
(1)Amount presented is net of the accumulated goodwill impairment charge of $185 million recorded in 2020. CERC’s goodwill as of both March 31, 2023 and December 31, 2022 is as follows:
|  |  |  |  |  |  |  | (in millions)
Goodwill |  |  |  |  |  |  |  | $ | 1,583 |
Schedule of Finite-Lived Intangible Assets | The tables below present information on CenterPoint Energy’s intangible assets, excluding goodwill, recorded in Other non-current assets on CenterPoint Energy’s Condensed Consolidated Balance Sheets and the related amortization expense included in Depreciation and amortization on CenterPoint Energy’s Condensed Statements of Consolidated Income.
|  | March 31, 2023 |  | December 31, 2022
|  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Balance |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Balance
|  | (in millions)
Customer relationships |  | $ | 33 |  |  | $ | (17) |  |  | $ | 16 |  |  | $ | 33 |  |  | $ | (16) |  |  | $ | 17 |
Trade names |  | 16 |  |  | (6) |  |  | 10 |  |  | 16 |  |  | (6) |  |  | 10 |
Operation and maintenance agreements (1) |  | 12 |  |  | (2) |  |  | 10 |  |  | 12 |  |  | (2) |  |  | 10 |
Other |  | 2 |  |  | (1) |  |  | 1 |  |  | 2 |  |  | (1) |  |  | 1 |
Total |  | $ | 63 |  |  | $ | (26) |  |  | $ | 37 |  |  | $ | 63 |  |  | $ | (25) |  |  | $ | 38 |
(1)Amortization expense related to the operation and maintenance agreements is included in Non-utility cost of revenues, including natural gas on CenterPoint Energy’s Condensed Statements of Consolidated Income.
Schedule of Finite-lived Intangible Assets Amortization Expense |
|  |  | Three Months Ended March 31, |
|  |  |  |  | 2023 |  | 2022 |
|  |  |  | (in millions) |
Amortization expense of intangible assets recorded in Depreciation and amortization |  |  |  |  | $ | 1 |  |  | $ | 1 |  |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense | CenterPoint Energy estimates that amortization expense of intangible assets with finite lives for the next five years will be as follows:
| Amortization Expense
| (in millions)
Remaining nine months of 2023 | $ | 5 |
2024 | 5 |
2025 | 5 |
2026 | 5 |
2027 | 4 |
2028 | 4 |

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