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v3.23.3

Acquisitions, Development and Divestitures - Development (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Business Acquisition [Line Items] |  |  |  |  |  |  |
Goodwill, Acquired During Period |  |  |  |  |  | $ 1,585 |
Transition Service Agreement Cost | $ 59 |  |  |  | $ 179 |  |
Goodwill | 2,247 |  |  |  | 2,247 |  | $ 2,248
Operating Revenues from external customers | 2,043 | $ 2,134 |  |  | 6,281 | 5,612 |
Net income (loss) | 230 | 174 |  |  | 627 | 566 |
Indemnification for Safari sale/leaseback |  |  |  |  | 25 |  |
Narragansett Electric |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Total cash consideration |  |  |  | $ 3,800 |  |  |
Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] | Safari Holdings LLC, Consolidated |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Gain (Loss) on Disposition of Business |  | (67) |  |  | (6) | (67) |
gain (loss) on disposition of business, net of tax |  | (50) |  |  | (5) | (50) |
Rhode Island Regulated |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Goodwill |  |  | $ 725 |  |  |  |
Operating Revenues from external customers | 413 | 384 |  |  | 1,355 | 512 |
Net income (loss) | 6 | (26) |  |  | 70 | (55) |
Corporate and Other [Member] |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Goodwill, Acquired During Period |  |  | 860 |  |  |  |
Goodwill, Purchase Accounting Adjustments |  |  | $ 1 |  |  |  |
Operating Revenues from external customers | 0 | 7 |  |  | 0 | 19 |
Net income (loss) | (87) | $ (107) |  |  | (259) | $ (254) |
Rhode Island Energy | Rhode Island Energy TSA |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Other Nonrecurring (Income) Expense | 69 |  |  |  | 193 |  |
Rhode Island Energy | Accrual for TSA Markup |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Other Nonrecurring (Income) Expense | $ 2 |  |  |  | $ 6 |  |

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