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Equity and Distributions, Issuances of Equity (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Net Cash Proceeds from Sale of Common Units [Abstract] |  |  |  |
Net cash proceeds from the issuance of common units |  | $ 82.2 | $ 538.4 | $ 1,073.4
Common units issued in connection with employee compensation (in units) |  | 1,626,041 | 1,443,586 | 1,176,103
Common units issued in connection with employee compensation |  | $ 45.6 | $ 39.1 | $ 33.7
Treasury Units: |  |  |  |
Total of common units repurchased under a buyback program (in units) |  | 2,909,128 | 1,236,800 |
Common units acquired in connection with buyback program |  | $ 81.1 | $ 30.8 |
Phantom units vesting during the period (in units) |  | 3,895,049 | 3,479,958 | 2,485,580
Phantom unit and restricted unit awards that vested during the period |  |  |  | 3,166,624
Acquisition of treasury units in connection with vesting of equity-based awards (in units) |  | 1,174,446 | 1,037,522 | 1,027,798
Capital expenditures |  | $ 4,531.7 | $ 4,223.2 | $ 3,101.8
Common units issued in connection with land acquisition (in units) |  |  | 1,223,242 |
Land [Member] |  |  |  |
Treasury Units: |  |  |  |
Property, plant and equipment, additions |  |  | $ 85.2 |
Capital expenditures |  |  | $ 55.2 |
Common units issued in connection with land acquisition (in units) |  |  | 1,223,242 |
Phantom Unit Awards [Member] |  |  |  |
Treasury Units: |  |  |  |
Phantom units vesting during the period (in units) |  | 3,895,049 | 3,479,958 | 2,490,081
Treasury Units [Member] |  |  |  |
Treasury Units: |  |  |  |
Acquisition of treasury units in connection with vesting of equity-based awards (in units) |  | 1,174,446 | 1,037,522 | 1,027,798
Common units acquired in connection with phantom unit awards |  | $ 33.7 | $ 27.3 | $ 29.5
Junior Debt Obligations [Member] |  |  |  |
Net Cash Proceeds from Sale of Common Units [Abstract] |  |  |  |
Debt issued under universal shelf registration |  |  | $ 700.0 | $ 1,700.0
2019 Buyback Program [Member] |  |  |  |
Treasury Units: |  |  |  |
Total of common units repurchased under a buyback program (in units) |  | 2,909,128 |  |
Common units acquired in connection with buyback program |  | $ 81.1 |  |
Amount authorized under 2019 Buyback Program |  | 2,000.0 |  |
Remaining available capacity under the 2019 Buyback Program |  | 1,920.0 |  |
Legacy Buyback Program [Member] |  |  |  |
Treasury Units: |  |  |  |
Maximum common units authorized for repurchase under a buyback program (in units) |  |  | 4,000,000 |
Total of common units repurchased under a buyback program (in units) |  |  | 1,236,800 |
Common units acquired in connection with buyback program |  |  | $ 30.8 |
Universal Shelf Registration [Member] | Senior Debt Obligations [Member] |  |  |  |
Net Cash Proceeds from Sale of Common Units [Abstract] |  |  |  |
Debt issued under universal shelf registration |  | 2,500.0 |  |
Universal Shelf Registration [Member] | Senior Debt Obligations [Member] | Subsequent Event [Member] |  |  |  |
Net Cash Proceeds from Sale of Common Units [Abstract] |  |  |  |
Debt issued under universal shelf registration | $ 3,000.0 |  |  |
At-the-Market Registration [Member] |  |  |  |
Registration Statements and Equity Offerings [Line Items] |  |  |  |
Maximum common units authorized for issuance |  | 2,540.0 |  |
Net Cash Proceeds from Sale of Common Units [Abstract] |  |  |  |
Number of common units issued (in units) |  |  |  | 21,807,726
Gross proceeds from the sale of common units |  |  |  | $ 603.1
Net cash proceeds from the issuance of common units |  |  |  | $ 597.0
Remaining units available for issuance |  | $ 2,540.0 |  |
Distribution Reinvestment Plan [Member] |  |  |  |
Net Cash Proceeds from Sale of Common Units [Abstract] |  |  |  |
Number of common units issued (in units) |  | 2,601,727 | 19,316,781 | 18,541,355
Net cash proceeds from the issuance of common units |  | $ 73.7 | $ 523.3 | $ 462.9
Distribution reinvestment plan discount rate |  | 0.00% | 2.50% |
Remaining units available for issuance (in units) |  | 56,320,229 |  |
Distribution Reinvestment Plan [Member] | Minimum [Member] |  |  |  |
Net Cash Proceeds from Sale of Common Units [Abstract] |  |  |  |
Distribution reinvestment plan discount rate range |  | 0.00% |  |
Distribution Reinvestment Plan [Member] | Maximum [Member] |  |  |  |
Net Cash Proceeds from Sale of Common Units [Abstract] |  |  |  |
Distribution reinvestment plan discount rate range |  | 5.00% |  |
Distribution Reinvestment Plan [Member] | EPCO and its privately held affiliates [Member] |  |  |  |
Net Cash Proceeds from Sale of Common Units [Abstract] |  |  |  |
Gross proceeds from the sale of common units |  | $ 29.0 | $ 213.0 | $ 100.0
Employee Unit Purchase Plan [Member] |  |  |  |
Net Cash Proceeds from Sale of Common Units [Abstract] |  |  |  |
Number of common units issued (in units) |  | 296,263 | 545,170 | 504,664
Net cash proceeds from the issuance of common units |  | $ 8.5 | $ 15.1 | $ 13.5
Employer contribution to EUPP |  | $ 0.9 |  |
Remaining units available for issuance (in units) |  | 4,596,585 |  |
Distribution Reinvestment and Employee Unit Purchase Plans [Member] |  |  |  |
Net Cash Proceeds from Sale of Common Units [Abstract] |  |  |  |
Number of common units purchased on the open market and delivered to participants (in units) |  | 2,801,196 |  |

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