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Intangible Assets and Goodwill - Schedule of Intangible Assets by Business Segment (Details) - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | $ 6,340 | $ 6,339
Accumulated Amortization | (2,438) | (2,334)
Carrying Value | 3,902 | 4,005
NGL Pipelines & Services |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 1,203 | 1,203
Accumulated Amortization | (440) | (417)
Carrying Value | 763 | 786
NGL Pipelines & Services | Customer relationship intangibles |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 449 | 449
Accumulated Amortization | (282) | (276)
Carrying Value | 167 | 173
NGL Pipelines & Services | Contract-based intangibles |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 754 | 754
Accumulated Amortization | (158) | (141)
Carrying Value | 596 | 613
Crude Oil Pipelines & Services |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 2,478 | 2,478
Accumulated Amortization | (947) | (905)
Carrying Value | 1,531 | 1,573
Crude Oil Pipelines & Services | Customer relationship intangibles |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 2,195 | 2,195
Accumulated Amortization | (669) | (627)
Carrying Value | 1,526 | 1,568
Crude Oil Pipelines & Services | Contract-based intangibles |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 283 | 283
Accumulated Amortization | (278) | (278)
Carrying Value | 5 | 5
Natural Gas Pipelines & Services |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 2,433 | 2,432
Accumulated Amortization | (926) | (890)
Carrying Value | 1,507 | 1,542
Natural Gas Pipelines & Services | Customer relationship intangibles |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 1,351 | 1,351
Accumulated Amortization | (682) | (663)
Carrying Value | 669 | 688
Natural Gas Pipelines & Services | Contract-based intangibles |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 1,082 | 1,081
Accumulated Amortization | (244) | (227)
Carrying Value | 838 | 854
Petrochemical & Refined Products Services |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 226 | 226
Accumulated Amortization | (125) | (122)
Carrying Value | 101 | 104
Petrochemical & Refined Products Services | Customer relationship intangibles |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 181 | 181
Accumulated Amortization | (95) | (92)
Carrying Value | 86 | 89
Petrochemical & Refined Products Services | Contract-based intangibles |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Gross Value | 45 | 45
Accumulated Amortization | (30) | (30)
Carrying Value | $ 15 | $ 15

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