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Segment Information - Segment Financial Data (Details)
$ in Millions
 3 Months Ended
Mar. 31, 2024
USD ($)
segment
Mar. 31, 2023
USD ($)
Segment Reporting Information    
Operating segments number | segment 2  
Reportable segments number | segment 2  
Revenues:    
Revenues $ 11,995 $ 12,341
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments    
Equity earnings in unconsolidated entities 95 89
Segment Adjusted EBITDA 712 709
Maintenance capital expenditures 57 48
Product sales    
Revenues:    
Revenues 11,546 11,943
Services    
Revenues:    
Revenues 449 398
Operating Segments    
Revenues:    
Revenues 12,089 12,448
Intersegment Revenues Elimination    
Revenues:    
Revenues (94) (107)
Intersegment Revenues Elimination | Product sales    
Revenues:    
Revenues (88) (101)
Intersegment Revenues Elimination | Services    
Revenues:    
Revenues (6) (6)
Crude Oil    
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments    
Equity earnings in unconsolidated entities 95 89
Segment Adjusted EBITDA 553 517
Maintenance capital expenditures 46 32
Crude Oil | Operating Segments    
Revenues:    
Revenues 11,582 11,758
Crude Oil | Operating Segments | Product sales    
Revenues:    
Revenues 11,176 11,409
Crude Oil | Operating Segments | Services    
Revenues:    
Revenues 406 349
NGL    
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments    
Segment Adjusted EBITDA 159 192
Maintenance capital expenditures 11 16
NGL | Operating Segments    
Revenues:    
Revenues 507 690
NGL | Operating Segments | Product sales    
Revenues:    
Revenues 458 635
NGL | Operating Segments | Services    
Revenues:    
Revenues $ 49 $ 55