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Equity - Change In ETE Common Units (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Sep. 30, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Limited Partners' Capital Account, Units Outstanding | 2,705,800,000 |  |  |  |  |  | 2,705,800,000 | 2,702,400,000 |
Stock Issued During Period, Shares, Dividend Reinvestment Plan |  |  |  |  |  |  | 2,700,000 |  |
Partners' Capital Account, Unit-based Payment Arrangement, Number of Units |  |  |  |  |  |  | 700,000 |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 35,349 | $ 35,275 | $ 34,254 | $ 31,291 | $ 32,892 | $ 32,530 | $ 35,349 | $ 31,388 | $ 33,938
Stock Issued During Period, Value, Conversion of Units |  | 0 |  |  |  |  |  |  |
Partners' Capital Account, Sale of Units |  | 889 |  |  |  |  |  |  |
Distributions to partners | (485) | (492) | (406) | $ (813) | $ 8 | $ (1,592) |  |  |
Series H Preferred Units |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | 903 | 890 | 0 |  |  |  | $ 903 |  |
Stock Issued During Period, Value, Conversion of Units |  | 0 |  |  |  |  |  |  |
Partners' Capital Account, Sale of Units |  | 889 |  |  |  |  |  |  |
Distributions to partners | 0 | 0 |  |  |  |  |  |  |
Stockholders' Equity, Other | (2) | (1) |  |  |  |  |  |  |
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest | $ 15 | 2 |  |  |  |  |  |  |
Preferred Stock, Shares Outstanding | 900,000 |  |  |  |  |  | 900,000 |  |
Series A Preferred Units [Member] |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 943 | 958 | 0 |  |  |  | $ 943 |  |
Stock Issued During Period, Value, Conversion of Units |  | 943 |  |  |  |  |  |  |
Partners' Capital Account, Sale of Units |  | 0 |  |  |  |  |  |  |
Distributions to partners | (30) | 0 |  |  |  |  |  |  |
Stockholders' Equity, Other | 0 | 0 |  |  |  |  |  |  |
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest | $ 15 | 15 |  |  |  |  |  |  |
Preferred Stock, Shares Outstanding | 950,000 |  |  |  |  |  | 950,000 |  |
Series C Preferred Units [Member] |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 440 | 440 | 0 |  |  |  | $ 440 |  |
Stock Issued During Period, Value, Conversion of Units |  | 440 |  |  |  |  |  |  |
Partners' Capital Account, Sale of Units |  | 0 |  |  |  |  |  |  |
Distributions to partners | (8) | (8) |  |  |  |  |  |  |
Stockholders' Equity, Other | 0 | 0 |  |  |  |  |  |  |
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest | $ 8 | 8 |  |  |  |  |  |  |
Preferred Stock, Shares Outstanding | 18,000,000 |  |  |  |  |  | 18,000,000 |  |
Series B Preferred Units [Member] |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 547 | 556 | 0 |  |  |  | $ 547 |  |
Stock Issued During Period, Value, Conversion of Units |  | 547 |  |  |  |  |  |  |
Partners' Capital Account, Sale of Units |  | 0 |  |  |  |  |  |  |
Distributions to partners | (18) | 0 |  |  |  |  |  |  |
Stockholders' Equity, Other | 0 | 0 |  |  |  |  |  |  |
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest | $ 9 | 9 |  |  |  |  |  |  |
Preferred Stock, Shares Outstanding | 550,000 |  |  |  |  |  | 550,000 |  |
Series D Preferred Units [Member] |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 434 | 434 | 0 |  |  |  | $ 434 |  |
Stock Issued During Period, Value, Conversion of Units |  | 434 |  |  |  |  |  |  |
Partners' Capital Account, Sale of Units |  | 0 |  |  |  |  |  |  |
Distributions to partners | (9) | (9) |  |  |  |  |  |  |
Stockholders' Equity, Other | 0 | 0 |  |  |  |  |  |  |
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest | $ 9 | 9 |  |  |  |  |  |  |
Preferred Stock, Shares Outstanding | 17,800,000 |  |  |  |  |  | 17,800,000 |  |
Series E Preferred Units [Member] |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 786 | 786 | 0 |  |  |  | $ 786 |  |
Stock Issued During Period, Value, Conversion of Units |  | 786 |  |  |  |  |  |  |
Partners' Capital Account, Sale of Units |  | 0 |  |  |  |  |  |  |
Distributions to partners | (15) | (15) |  |  |  |  |  |  |
Stockholders' Equity, Other | 0 | 0 |  |  |  |  |  |  |
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest | $ 15 | 15 |  |  |  |  |  |  |
Preferred Stock, Shares Outstanding | 32,000,000 |  |  |  |  |  | 32,000,000 |  |
Series F Preferred Units [Member] |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 503 | 495 | 0 |  |  |  | $ 503 |  |
Stock Issued During Period, Value, Conversion of Units |  | 504 |  |  |  |  |  |  |
Partners' Capital Account, Sale of Units |  | 0 |  |  |  |  |  |  |
Distributions to partners | 0 | (17) |  |  |  |  |  |  |
Stockholders' Equity, Other | 0 | 0 |  |  |  |  |  |  |
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest | $ 8 | 8 |  |  |  |  |  |  |
Preferred Stock, Shares Outstanding | 500,000 |  |  |  |  |  | 500,000 |  |
Series G Preferred Units [Member] |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 1,115 | 1,095 | 0 |  |  |  | $ 1,115 |  |
Stock Issued During Period, Value, Conversion of Units |  | 1,114 |  |  |  |  |  |  |
Partners' Capital Account, Sale of Units |  | 0 |  |  |  |  |  |  |
Distributions to partners | 0 | (39) |  |  |  |  |  |  |
Stockholders' Equity, Other | 0 | 0 |  |  |  |  |  |  |
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest | $ 20 | 20 |  |  |  |  |  |  |
Preferred Stock, Shares Outstanding | 1,100,000 |  |  |  |  |  | 1,100,000 |  |
Preferred Unitholders |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 5,671 | 5,654 | 0 |  |  |  | $ 5,671 | $ 0 |
Stock Issued During Period, Value, Conversion of Units |  | 4,768 |  |  |  |  |  |  |
Partners' Capital Account, Sale of Units |  | 889 |  |  |  |  |  |  |
Distributions to partners | (80) | (88) | $ 0 |  |  |  |  |  |
Stockholders' Equity, Other | (2) | (1) |  |  |  |  |  |  |
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest | $ 99 | $ 86 |  |  |  |  |  |  |

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