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Related Party Transactions - Schedule of Costs and Expenses Attributable (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Related Party Transaction [Line Items]      
Operating costs and expenses $ 45,440 $ 49,045 $ 43,017
General and administrative costs 251 244 231
Total costs and expenses 45,691 49,289 43,248
Related Party      
Related Party Transaction [Line Items]      
Operating costs and expenses 1,615 1,491 1,385
General and administrative costs 148 166 156
Total costs and expenses 1,763 1,657 1,541
EPCO and its privately held affiliates      
Related Party Transaction [Line Items]      
Total costs and expenses 1,604 1,472 1,353
Administrative Services Agreement | EPCO and its privately held affiliates      
Related Party Transaction [Line Items]      
Operating costs and expenses 1,443 1,294 1,189
General and administrative costs 134 152 141
Total costs and expenses $ 1,577 $ 1,446 $ 1,330