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Intangible Assets and Goodwill - Schedule of Amortization Expense of our Intangible Assets by Business Segment (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]      
Amortization of intangible assets $ 216 $ 207 $ 201
NGL Pipelines & Services      
Finite-Lived Intangible Assets [Line Items]      
Amortization of intangible assets 49 44 40
Crude Oil Pipelines & Services      
Finite-Lived Intangible Assets [Line Items]      
Amortization of intangible assets 85 100 103
Natural Gas Pipelines & Services      
Finite-Lived Intangible Assets [Line Items]      
Amortization of intangible assets 75 56 51
Petrochemical & Refined Products Services      
Finite-Lived Intangible Assets [Line Items]      
Amortization of intangible assets $ 7 $ 7 $ 7