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Acquisitions and Other Transactions (Northwind Midstream - Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Millions | Dec. 31, 2025 | Aug. 29, 2025 | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | --- | --- | ---
Liabilities assumed: |  |  |  |
Goodwill | $ 8,755 |  | $ 7,645 | $ 7,645
Northwind Midstream |  |  |  |
Assets acquired: |  |  |  |
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent | 17 |  |  |
Business Combination, Recognized Asset Acquired, Receivable, Current | 11 |  |  |
Business Combination, Recognized Asset Acquired, Other Asset, Current | 1 |  |  |
Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment | 1,169 |  |  |
Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill | 951 |  |  |
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent | 2 |  |  |
Business Combination, Recognized Asset Acquired, Asset | 2,151 |  |  |
Liabilities assumed: |  |  |  |
Business Combination, Recognized Liability Assumed, Accounts Payable, Current | 22 |  |  |
Business Combination, Recognized Liability Assumed, Accrued Property, Plant and Equipment, Current | 84 |  |  |
Business Combination, Recognized Liability Assumed, Accrued Liabilities, Current | 9 |  |  |
Business Combination, Recognized Liability Assumed, Other Liability, Current | 1 |  |  |
Business Combination, Recognized Liability Assumed, Operating Lease Liability, Long-term | 1 |  |  |
Business Combination, Recognized Liability Assumed, Liability | 117 |  |  |
Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | 2,034 |  |  |
Goodwill | 379 |  |  |
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill | $ 2,413 |  |  |
Northwind Midstream | Previously Reported |  |  |  |
Assets acquired: |  |  |  |
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent |  | $ 17 |  |
Business Combination, Recognized Asset Acquired, Receivable, Current |  | 11 |  |
Business Combination, Recognized Asset Acquired, Other Asset, Current |  | 1 |  |
Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  | 1,182 |  |
Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  | 951 |  |
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent |  | 2 |  |
Business Combination, Recognized Asset Acquired, Asset |  | 2,164 |  |
Liabilities assumed: |  |  |  |
Business Combination, Recognized Liability Assumed, Accounts Payable, Current |  | 15 |  |
Business Combination, Recognized Liability Assumed, Accrued Property, Plant and Equipment, Current |  | 84 |  |
Business Combination, Recognized Liability Assumed, Accrued Liabilities, Current |  | 6 |  |
Business Combination, Recognized Liability Assumed, Other Liability, Current |  | 1 |  |
Business Combination, Recognized Liability Assumed, Operating Lease Liability, Long-term |  | 1 |  |
Business Combination, Recognized Liability Assumed, Liability |  | 107 |  |
Recognized Identifiable Assets Acquired and Liabilities Assumed, Net |  | 2,057 |  |
Goodwill |  | 356 |  |
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill |  | 2,413 |  |
Northwind Midstream | Revision of Prior Period, Adjustment |  |  |  |
Assets acquired: |  |  |  |
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent |  | 0 |  |
Business Combination, Recognized Asset Acquired, Receivable, Current |  | 0 |  |
Business Combination, Recognized Asset Acquired, Other Asset, Current |  | 0 |  |
Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  | (13) |  |
Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  | 0 |  |
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent |  | 0 |  |
Business Combination, Recognized Asset Acquired, Asset |  | (13) |  |
Liabilities assumed: |  |  |  |
Business Combination, Recognized Liability Assumed, Accounts Payable, Current |  | 7 |  |
Business Combination, Recognized Liability Assumed, Accrued Property, Plant and Equipment, Current |  | 0 |  |
Business Combination, Recognized Liability Assumed, Accrued Liabilities, Current |  | 3 |  |
Business Combination, Recognized Liability Assumed, Other Liability, Current |  | 0 |  |
Business Combination, Recognized Liability Assumed, Operating Lease Liability, Long-term |  | 0 |  |
Business Combination, Recognized Liability Assumed, Liability |  | 10 |  |
Recognized Identifiable Assets Acquired and Liabilities Assumed, Net |  | (23) |  |
Goodwill |  | 23 |  |
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill |  | $ 0 |  |

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