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v3.25.2

Segment Information (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Segment Reporting [Abstract] |  |  |  |  |
Equity Method Investments | $ 232 |  | $ 232 |  | $ 246
Segment Reporting Information [Line Items] |  |  |  |  |
Electric | 2,878 | $ 2,659 | 5,713 | $ 5,344 |
Natural gas | 396 | 355 | 1,451 | 1,296 |
Revenues Including Intersegment Revenues | 3,280 |  | 7,175 | 6,642 |
Electric fuel and purchased power | 918 | 855 | 1,938 | 1,803 |
Cost of natural gas sold and transported | 134 | 118 | 647 | 601 |
Operating and maintenance expenses | 675 | 662 | 1,361 | 1,267 |
Utilities Operating Expense, Depreciation and Amortization | 722 | 703 | 1,450 | 1,361 |
Other income, net | 68 | 22 | 75 | 36 |
Interest and Debt Expense | 322 | 303 | 631 | 580 |
Income tax (benefit) expense | (60) | (88) | (121) | (115) |
Net income | 444 | 302 | 927 | 790 |
Equity Method Investments | 232 |  | 232 |  | 246
Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Regulated Operating Revenue | 3,274 | 3,014 | 7,164 | 6,640 |
Electric fuel and purchased power | 918 | 855 | 1,938 | 1,803 |
Cost of natural gas sold and transported | 134 | 118 | 647 | 601 |
Operating and maintenance expenses | 660 | 654 | 1,333 | 1,262 |
Utilities Operating Expense, Depreciation and Amortization | 719 | 699 | 1,443 | 1,354 |
Other income, net | 183 | 180 | 411 | 403 |
Interest and Debt Expense | 244 | 228 | 478 | 441 |
Income tax (benefit) expense | (52) | (76) | (86) | (94) |
Net income | 474 | 356 | 1,011 | 872 |
Intersegment Eliminations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Regulated Operating Revenue | 6 |  | 11 | 2 |
All Other |  |  |  |  |
Segment Reporting [Abstract] |  |  |  |  |
Equity Method Investments | 148 |  | 148 |  | 161
Segment Reporting Information [Line Items] |  |  |  |  |
Net income | (30) | (54) | (84) | (82) |
Equity Method Investments | 148 |  | 148 |  | 161
Regulated Electric Segment |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues Including Intersegment Revenues | 2,878 |  | 5,713 | 5,345 |
Regulated Electric Segment | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Electric | 2,878 | 2,659 | 5,713 | 5,344 |
Electric fuel and purchased power | 918 | 855 | 1,938 | 1,803 |
Cost of natural gas sold and transported | 0 | 0 | 0 | 0 |
Operating and maintenance expenses | 554 | 553 | 1,122 | 1,056 |
Utilities Operating Expense, Depreciation and Amortization | 617 | 612 | 1,243 | 1,181 |
Other income, net | 156 | 161 | 327 | 350 |
Interest and Debt Expense | 213 | 198 | 417 | 384 |
Income tax (benefit) expense | (48) | (73) | (143) | (140) |
Net income | 468 | 353 | 809 | 711 |
Regulated Electric Segment | Intersegment Eliminations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Electric | 0 |  | 0 | 1 |
Regulated Natural Gas Segment |  |  |  |  |
Segment Reporting [Abstract] |  |  |  |  |
Equity Method Investments | 84 |  | 84 |  | 85
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues Including Intersegment Revenues | 402 |  | 1,462 | 1,297 |
Equity Method Investments | 84 |  | 84 |  | $ 85
Regulated Natural Gas Segment | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Natural gas | 396 | 355 | 1,451 | 1,296 |
Electric fuel and purchased power | 0 | 0 | 0 | 0 |
Cost of natural gas sold and transported | 134 | 118 | 647 | 601 |
Operating and maintenance expenses | 106 | 101 | 211 | 206 |
Utilities Operating Expense, Depreciation and Amortization | 102 | 87 | 200 | 173 |
Other income, net | 27 | 19 | 84 | 53 |
Interest and Debt Expense | 31 | 30 | 61 | 57 |
Income tax (benefit) expense | (4) | (3) | 57 | 46 |
Net income | 6 | $ 3 | 202 | 161 |
Regulated Natural Gas Segment | Intersegment Eliminations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Natural gas | $ 6 |  | $ 11 | $ 1 |

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- Definition Amount of operating expense for depreciation and amortization of regulated operation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(2)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
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