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Business Segments (Schedule of Revenue, By Products and Services) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | $ 32,237 | $ 30,357 | $ 29,060
Total Reportable Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 32,209 | 30,319 | 29,023
Electric Utilities and Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 29,297 | 28,020 | 26,846
Gas Utilities and Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 2,912 | 2,299 | 2,177
Operating Segments | Total Reportable Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 32,360 | 30,483 | 29,187
Operating Segments | Electric Utilities and Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 29,357 | 28,093 | 26,921
Operating Segments | Gas Utilities and Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 3,003 | 2,390 | 2,266
Operating Segments | Retail Electric |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 25,504 | 24,593 | 23,484
Operating Segments | Retail Electric | Electric Utilities and Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 25,504 | 24,593 | 23,484
Operating Segments | Retail Electric | Gas Utilities and Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 0 | 0 | 0
Operating Segments | Wholesale Electric |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 2,423 | 2,219 | 2,193
Operating Segments | Wholesale Electric | Electric Utilities and Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 2,423 | 2,219 | 2,193
Operating Segments | Wholesale Electric | Gas Utilities and Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 0 | 0 | 0
Operating Segments | Retail Natural Gas |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 2,782 | 2,320 | 2,199
Operating Segments | Retail Natural Gas | Electric Utilities and Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 0 |  | 0
Operating Segments | Retail Natural Gas | Gas Utilities and Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 2,782 | 2,320 | 2,199
Operating Segments | Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 1,651 | 1,351 | 1,311
Operating Segments | Other | Electric Utilities and Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | 1,430 | 1,281 | 1,244
Operating Segments | Other | Gas Utilities and Infrastructure |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating Revenues | $ 221 | $ 70 | $ 67

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