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Related Party Transactions - Schedule of Costs and Expenses Attributable (Details) - USD ($) $ in Millions | 12 Months Ended
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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

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