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v3.23.3

Segment Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Segment Reporting [Abstract] |  |  |  |  |
Equity Method Investments | $ 244 |  | $ 244 |  | $ 219
Segment Reporting Information [Line Items] |  |  |  |  |
Electric | 3,387 | $ 3,699 | 8,751 | $ 9,255 |
Net income | 656 | 649 | 1,362 | 1,357 |
Natural gas | 245 | 357 | 1,926 | 1,923 |
Other | 30 | 26 | 87 | 79 |
Regulated and Unregulated Operating Revenue | 3,662 | 4,082 | 10,764 | 11,257 |
Equity Method Investments | 244 |  | 244 |  | 219
Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Regulated and Unregulated Operating Revenue | 3,663 | 4,083 | 10,767 | 11,259 |
Intersegment Eliminations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Regulated and Unregulated Operating Revenue | (1) | (1) | (3) | (2) |
Regulated Electric |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net income | 706 | 697 | 1,352 | 1,312 |
Revenues Including Intersegment Revenues | 3,387 | 3,699 | 8,751 | 9,256 |
Regulated Electric | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Electric |  |  | 8,751 | 9,255 |
Regulated Electric | Intersegment Eliminations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Electric |  |  | 0 | 1 |
Regulated Natural Gas |  |  |  |  |
Segment Reporting [Abstract] |  |  |  |  |
Equity Method Investments | 244 |  | 244 |  | 219
Segment Reporting Information [Line Items] |  |  |  |  |
Net income | (21) | (7) | 116 | 148 |
Revenues Including Intersegment Revenues | 246 | 358 | 1,929 | 1,924 |
Equity Method Investments | 244 |  | 244 |  | $ 219
Regulated Natural Gas | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Natural gas | 245 | 357 | 1,926 | 1,923 |
Regulated Natural Gas | Intersegment Eliminations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Natural gas | 1 | 1 | 3 | 1 |
All Other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net income | (29) | (41) | (106) | (103) |
All Other | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Other | $ 30 | $ 26 | $ 87 | $ 79 |

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