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v3.25.3

Statement of Net Income (Unaudited) - Transco - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Revenues [Abstract] |  |  |  |
Revenues | $ 2,923 | $ 2,653 | $ 8,752 | $ 7,760
Costs and Expenses [Abstract] |  |  |  |
Depreciation, depletion, and amortization | 564 | 566 | 1,754 | 1,654
Other Operating Income (Expense), Net | 14 | (25) | 17 | (69)
Total costs and expenses | 1,814 | 1,815 | 5,604 | 5,214
Operating income (loss) | 1,109 | 838 | 3,148 | 2,546
Interest expense | (372) | (338) | (1,071) | (1,026)
Other Nonoperating Income (Expense) | 21 | 31 | 51 | 95
Net income (loss) attributable to The Williams Companies, Inc. | 647 | 706 | 1,884 | 1,739
Transcontinental Gas Pipe Line Company, LLC [Member] |  |  |  |
Revenues [Abstract] |  |  |  |
Revenues | 844 | 746 | 2,405 | 2,188
Costs and Expenses [Abstract] |  |  |  |
Cost of natural gas sales | 37 | 26 | 81 | 72
Utilities Operating Expense, Maintenance and Operations | 131 | 138 | 372 | 376
General and Administrative Expense | 56 | 56 | 166 | 159
Depreciation, depletion, and amortization | 111 | 145 | 426 | 410
Taxes, Miscellaneous | 30 | 28 | 91 | 85
Other Operating Income (Expense), Net | 4 | (13) | 25 | (38)
Total costs and expenses | 369 | 380 | 1,161 | 1,064
Operating income (loss) | 475 | 366 | 1,244 | 1,124
Interest expense | (82) | (82) | (244) | (243)
Interest Income, Other | 8 | 14 | 23 | 47
Public Utilities, Allowance for Funds Used During Construction, Additions | 10 | 23 | 25 | 73
Other Nonoperating Income (Expense) | (1) | (2) | (3) | (5)
Net income (loss) attributable to The Williams Companies, Inc. | 410 | 319 | 1,045 | 996
Natural Gas, US Regulated | Transcontinental Gas Pipe Line Company, LLC [Member] |  |  |  |
Revenues [Abstract] |  |  |  |
Revenues | 750 | 663 | 2,134 | 1,949
Natural Gas, Storage | Transcontinental Gas Pipe Line Company, LLC [Member] |  |  |  |
Revenues [Abstract] |  |  |  |
Revenues | 51 | 52 | 169 | 148
Natural Gas, Gathering, Transportation, Marketing and Processing | Transcontinental Gas Pipe Line Company, LLC [Member] |  |  |  |
Revenues [Abstract] |  |  |  |
Revenues | 37 | 26 | 81 | 72
Product and Service, Other | Transcontinental Gas Pipe Line Company, LLC [Member] |  |  |  |
Revenues [Abstract] |  |  |  |
Revenues | $ 6 | $ 5 | $ 21 | $ 19

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