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v3.25.1

Reportable Segments - Schedule of Financial Data (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Segment Reporting Information [Line Items] |  |  |
Revenues from external customers | $ 2,920 | $ 2,620 |
Intersegment revenues | 0 |  |
Utility natural gas, fuel and purchased power | 1,006 | 787 |
Non-utility cost of revenues, including natural gas | 1 | 1 |
Operation and maintenance | 747 | 709 |
Depreciation and amortization | 363 | 363 |
Taxes other than income taxes | 154 | 144 |
Interest expense | 238 | 204 |
Income tax expense | 81 | 78 |
Interest income | 6 | 0 |
Other income(expense), net | (39) | 16 |
Net income (loss) | 297 | 350 |
Interest income from securitization bonds (less than for 2025) | 1 | 1 |
Expenditures for Long-lived Assets | 1,340 | 811 |
Total Assets | 44,486 |  | $ 43,768
Natural Gas |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues from external customers | 1,852 | 1,570 |
Corporate and Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues from external customers | 2 | 1 |
Corporate and Other | Pension and Other Postretirement Plans Costs |  |  |
Segment Reporting Information [Line Items] |  |  |
Regulatory assets | 378 |  | 384
Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues from external customers | 2,920 | 2,620 |
Intersegment revenues | 1 |  |
Utility natural gas, fuel and purchased power | 1,007 | 787 |
Non-utility cost of revenues, including natural gas | 1 | 1 |
Operation and maintenance | 747 | 709 |
Depreciation and amortization | 363 | 363 |
Taxes other than income taxes | 154 | 144 |
Interest expense | 245 | 211 |
Income tax expense | 81 | 78 |
Interest income | 13 | 7 |
Other income(expense), net | (39) | 16 |
Net income (loss) | 297 | 350 |
Operating Segments | Electric |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues from external customers | 1,066 | 1,049 |
Intersegment revenues | 0 |  |
Utility natural gas, fuel and purchased power | 74 | 43 |
Non-utility cost of revenues, including natural gas | 0 | 0 |
Operation and maintenance | 484 | 475 |
Depreciation and amortization | 210 | 226 |
Taxes other than income taxes | 78 | 78 |
Interest expense | 101 | 91 |
Income tax expense | 25 | 31 |
Interest income | 4 | 5 |
Other income(expense), net | 10 | 11 |
Net income (loss) | 108 | 121 |
Expenditures for Long-lived Assets | 971 | 507 |
Total Assets | 24,605 |  | 23,936
Operating Segments | Natural Gas |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues from external customers | 1,852 | 1,570 |
Intersegment revenues | 1 |  |
Utility natural gas, fuel and purchased power | 933 | 744 |
Non-utility cost of revenues, including natural gas | 1 | 1 |
Operation and maintenance | 265 | 234 |
Depreciation and amortization | 147 | 132 |
Taxes other than income taxes | 74 | 65 |
Interest expense | 59 | 51 |
Income tax expense | 105 | 63 |
Interest income | 2 | 0 |
Other income(expense), net | (43) | 3 |
Net income (loss) | 228 | 283 |
Expenditures for Long-lived Assets | 363 | 303 |
Total Assets | 18,299 |  | 18,583
Operating Segments | Corporate and Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues from external customers | 2 | 1 |
Intersegment revenues | 0 |  |
Utility natural gas, fuel and purchased power | 0 | 0 |
Non-utility cost of revenues, including natural gas | 0 | 0 |
Operation and maintenance | (2) | 0 |
Depreciation and amortization | 6 | 5 |
Taxes other than income taxes | 2 | 1 |
Interest expense | 85 | 69 |
Income tax expense | (49) | (16) |
Interest income | 7 | 2 |
Other income(expense), net | (6) | 2 |
Net income (loss) | (39) | (54) |
Expenditures for Long-lived Assets | 6 | 1 |
Total Assets | 1,582 |  | $ 1,249
Eliminations |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues from external customers | 0 | 0 |
Intersegment revenues | (1) |  |
Utility natural gas, fuel and purchased power | (1) | 0 |
Non-utility cost of revenues, including natural gas | 0 | 0 |
Operation and maintenance | 0 | 0 |
Depreciation and amortization | 0 | 0 |
Taxes other than income taxes | 0 | 0 |
Interest expense | (7) | (7) |
Income tax expense | 0 | 0 |
Interest income | 7 | 7 |
Other income(expense), net | 0 | 0 |
Net income (loss) | $ 0 | $ 0 |

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