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Related Party Transactions - Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Related Party Transaction [Line Items]      
Costs and expenses $ 45,691 $ 49,289 $ 43,248
Revenues 52,596 56,219 49,715
Related Party      
Related Party Transaction [Line Items]      
Costs and expenses 1,763 1,657 1,541
Revenues 52 58 61
EPCO and its privately held affiliates      
Related Party Transaction [Line Items]      
Total cash distributions 1,500 1,400 1,300
Operating lease, expense 25 23 13
Costs and expenses $ 1,604 1,472 1,353
EPCO and its privately held affiliates | Common Units      
Related Party Transaction [Line Items]      
Enterprise common units pledged as security (in units) 59,976,464    
Unconsolidated affiliates      
Related Party Transaction [Line Items]      
Costs and expenses $ 159 185 188
Revenues 52 58 61
Unconsolidated affiliates | Management/Operator Fees      
Related Party Transaction [Line Items]      
Costs and expenses (15) (14) (11)
Unconsolidated affiliates | Seaway Crude Holdings LLC (“Seaway”)      
Related Party Transaction [Line Items]      
Costs and expenses 26 30 27
Revenues 17 23 25
Unconsolidated affiliates | Venice Energy Service Company, L.L.C. (“VESCO”)      
Related Party Transaction [Line Items]      
Costs and expenses 72 75 80
Unconsolidated affiliates | K/D/S Promix, L.L.C. (“Promix”)      
Related Party Transaction [Line Items]      
Costs and expenses 39 39 36
Revenues 12 9 11
Unconsolidated affiliates | Texas Express Pipeline LLC (“Texas Express”)      
Related Party Transaction [Line Items]      
Costs and expenses $ 3 $ 10 $ 27