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v3.26.1

Acquisitions and Other Transactions (Matterhorn) (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Jun. 16, 2025
Business Combination [Line Items] |  |  |
Investments - acquisitions and contributions | $ 441 | $ 467 |
MXP Parent, LLC |  |  |
Business Combination [Line Items] |  |  |
Equity Method Investment, Addition Ownership Acquired |  |  | 5.00%
Equity method investment, ownership percentage |  |  | 10.00%
Difference between carrying amount and underlying equity |  |  | $ 124
MXP Parent, LLC | Property, Plant and Equipment |  |  |
Business Combination [Line Items] |  |  |
Difference between carrying amount and underlying equity |  |  | 63
MXP Parent, LLC | Customer-Related Intangible Assets |  |  |
Business Combination [Line Items] |  |  |
Difference between carrying amount and underlying equity |  |  | $ 61

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