v3.26.3
Intangible Assets and Goodwill - Schedule of Intangible Assets by Business Segment (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Intangible Asset, Excluding Goodwill, after Accumulated Amortization [Abstract]    
Gross Value $ 6,714 $ 6,709
Accumulated Amortization (2,726) (2,550)
Carrying Value 3,988 4,159
NGL Pipelines & Services    
Intangible Asset, Excluding Goodwill, after Accumulated Amortization [Abstract]    
Gross Value 1,499 1,499
Accumulated Amortization (507) (466)
Carrying Value 992 1,033
NGL Pipelines & Services | Customer relationship intangibles    
Intangible Asset, Excluding Goodwill, after Accumulated Amortization [Abstract]    
Gross Value 449 449
Accumulated Amortization (297) (289)
Carrying Value 152 160
NGL Pipelines & Services | Contract-based intangibles    
Intangible Asset, Excluding Goodwill, after Accumulated Amortization [Abstract]    
Gross Value 1,050 1,050
Accumulated Amortization (210) (177)
Carrying Value 840 873
Crude Oil Pipelines & Services    
Intangible Asset, Excluding Goodwill, after Accumulated Amortization [Abstract]    
Gross Value 2,478 2,478
Accumulated Amortization (1,061) (990)
Carrying Value 1,417 1,488
Crude Oil Pipelines & Services | Customer relationship intangibles    
Intangible Asset, Excluding Goodwill, after Accumulated Amortization [Abstract]    
Gross Value 2,195 2,195
Accumulated Amortization (781) (710)
Carrying Value 1,414 1,485
Crude Oil Pipelines & Services | Contract-based intangibles    
Intangible Asset, Excluding Goodwill, after Accumulated Amortization [Abstract]    
Gross Value 283 283
Accumulated Amortization (280) (280)
Carrying Value 3 3
Natural Gas Pipelines & Services    
Intangible Asset, Excluding Goodwill, after Accumulated Amortization [Abstract]    
Gross Value 2,506 2,501
Accumulated Amortization (1,023) (965)
Carrying Value 1,483 1,536
Natural Gas Pipelines & Services | Customer relationship intangibles    
Intangible Asset, Excluding Goodwill, after Accumulated Amortization [Abstract]    
Gross Value 1,351 1,351
Accumulated Amortization (726) (700)
Carrying Value 625 651
Natural Gas Pipelines & Services | Contract-based intangibles    
Intangible Asset, Excluding Goodwill, after Accumulated Amortization [Abstract]    
Gross Value 1,155 1,150
Accumulated Amortization (297) (265)
Carrying Value 858 885
Petrochemical & Refined Products Services    
Intangible Asset, Excluding Goodwill, after Accumulated Amortization [Abstract]    
Gross Value 231 231
Accumulated Amortization (135) (129)
Carrying Value 96 102
Petrochemical & Refined Products Services | Customer relationship intangibles    
Intangible Asset, Excluding Goodwill, after Accumulated Amortization [Abstract]    
Gross Value 181 181
Accumulated Amortization (104) (99)
Carrying Value 77 82
Petrochemical & Refined Products Services | Contract-based intangibles    
Intangible Asset, Excluding Goodwill, after Accumulated Amortization [Abstract]    
Gross Value 50 50
Accumulated Amortization (31) (30)
Carrying Value $ 19 $ 20