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Investments in Unconsolidated Affiliates - Schedule of Equity Earnings (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Schedule of Equity Method Investments [Line Items]      
Equity in income of unconsolidated affiliates $ 361 $ 408 $ 462
NGL Pipelines & Services      
Schedule of Equity Method Investments [Line Items]      
Equity in income of unconsolidated affiliates 83 117 133
Crude Oil Pipelines & Services      
Schedule of Equity Method Investments [Line Items]      
Equity in income of unconsolidated affiliates 271 285 320
Natural Gas Pipelines & Services      
Schedule of Equity Method Investments [Line Items]      
Equity in income of unconsolidated affiliates 5 5 6
Petrochemical & Refined Products Services      
Schedule of Equity Method Investments [Line Items]      
Equity in income of unconsolidated affiliates $ 2 $ 1 $ 3