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Intangible Assets and Goodwill - Schedule of Intangible Assets by Business Segment (Details) - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | $ 6,709 | $ 6,339
Accumulated Amortization | (2,550) | (2,334)
Carrying Value | 4,159 | 4,005
Customer relationship intangibles |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Carrying Value | 2,400 |
Contract-based intangibles |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Carrying Value | 1,800 |
NGL Pipelines & Services |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 1,499 | 1,203
Accumulated Amortization | (466) | (417)
Carrying Value | 1,033 | 786
NGL Pipelines & Services | Customer relationship intangibles |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 449 | 449
Accumulated Amortization | (289) | (276)
Carrying Value | 160 | 173
NGL Pipelines & Services | Contract-based intangibles |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 1,050 | 754
Accumulated Amortization | (177) | (141)
Carrying Value | 873 | 613
Crude Oil Pipelines & Services |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 2,478 | 2,478
Accumulated Amortization | (990) | (905)
Carrying Value | 1,488 | 1,573
Crude Oil Pipelines & Services | Customer relationship intangibles |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 2,195 | 2,195
Accumulated Amortization | (710) | (627)
Carrying Value | 1,485 | 1,568
Crude Oil Pipelines & Services | Contract-based intangibles |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 283 | 283
Accumulated Amortization | (280) | (278)
Carrying Value | 3 | 5
Natural Gas Pipelines & Services |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 2,501 | 2,432
Accumulated Amortization | (965) | (890)
Carrying Value | 1,536 | 1,542
Natural Gas Pipelines & Services | Customer relationship intangibles |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 1,351 | 1,351
Accumulated Amortization | (700) | (663)
Carrying Value | 651 | 688
Natural Gas Pipelines & Services | Contract-based intangibles |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 1,150 | 1,081
Accumulated Amortization | (265) | (227)
Carrying Value | 885 | 854
Petrochemical & Refined Products Services |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 231 | 226
Accumulated Amortization | (129) | (122)
Carrying Value | 102 | 104
Petrochemical & Refined Products Services | Customer relationship intangibles |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 181 | 181
Accumulated Amortization | (99) | (92)
Carrying Value | 82 | 89
Petrochemical & Refined Products Services | Contract-based intangibles |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 50 | 45
Accumulated Amortization | (30) | (30)
Carrying Value | $ 20 | $ 15

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