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Debt Obligations (Details) - USD ($) $ in Millions | 1 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Oct. 31, 2019 | Jul. 31, 2019 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 28,196.4 |  | $ 26,420.6
Other, non-principal amounts |  |  |  | (257.2) |  | (242.4)
Less current maturities of debt |  |  |  | (2,300.0) |  | (1,500.1)
Total long-term debt |  |  |  | 25,639.2 |  | 24,678.1
Debt Obligations Terms: |  |  |  |  |  |
Borrowings under debt agreements |  |  |  | 44,629.6 | $ 67,086.3 |
Repayment of debt obligations |  |  |  | 42,855.3 | $ 65,742.1 |
Letters of credit outstanding |  |  |  | 101.4 |  |
Senior Debt Obligations [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | 25,550.0 |  | 23,750.0
Debt Obligations Terms: |  |  |  |  |  |
Aggregate debt principal issued |  |  | $ 2,500.0 |  |  |
Senior Debt Obligations [Member] | Commercial Paper Notes [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 0.0 |  | 0.0
Information regarding variable interest rates paid: |  |  |  |  |  |
Weighted-average interest rate paid |  |  |  | 2.72% |  |
Senior Debt Obligations [Member] | Commercial Paper Notes [Member] | Minimum [Member] |  |  |  |  |  |
Information regarding variable interest rates paid: |  |  |  |  |  |
Variable interest rates paid |  |  |  | 2.58% |  |
Senior Debt Obligations [Member] | Commercial Paper Notes [Member] | Maximum [Member] |  |  |  |  |  |
Information regarding variable interest rates paid: |  |  |  |  |  |
Variable interest rates paid |  |  |  | 2.80% |  |
Senior Debt Obligations [Member] | EPO Senior Notes N [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 0.0 |  | 700.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 6.50% |  |
Senior Debt Obligations [Member] | EPO 364-Day Revolving Credit Agreement [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 0.0 |  | 0.0
Debt Obligations Terms: |  |  |  |  |  |
Credit facilty interest rate description |  |  |  | (i) LIBOR, plus an additional variable spread; or (ii) an alternate base rate, which is the greater of (a) the Prime Rate in effect on such day, (b) the Federal Funds Effective Rate in effect on such day plus 0.5%, or (c) the LIBO Market Index Rate in effect on such day plus 1% and a variable spread. The applicable spreads are determined based on our debt ratings. |  |
Maximum borrowing capacity |  |  |  | $ 1,500.0 |  |
Maximum bank commitments increase |  |  |  | 200.0 |  |
Total maximum borrowing capacity |  |  |  | 1,700.0 |  |
Senior Debt Obligations [Member] | EPO Senior Notes LL [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 800.0 |  | 800.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 2.55% |  |
Senior Debt Obligations [Member] | EPO Senior Notes LL [Member] | Forecast [Member] |  |  |  |  |  |
Debt Obligations Terms: |  |  |  |  |  |
Repayment of debt obligations |  | $ 800.0 |  |  |  |
Senior Debt Obligations [Member] | EPO Senior Notes Q [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 500.0 |  | 500.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 5.25% |  |
Senior Debt Obligations [Member] | EPO Senior Notes Y [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 1,000.0 |  | 1,000.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 5.20% |  |
Senior Debt Obligations [Member] | EPO Senior Notes TT [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 750.0 |  | 750.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 2.80% |  |
Senior Debt Obligations [Member] | EPO Senior Notes RR [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 575.0 |  | 575.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 2.85% |  |
Senior Debt Obligations [Member] | EPO Senior Notes VV [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 750.0 |  | 750.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 3.50% |  |
Senior Debt Obligations [Member] | EPO Senior Notes CC [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 650.0 |  | 650.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 4.05% |  |
Senior Debt Obligations [Member] | EPO Multi-Year Revolving Credit Facility [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 0.0 |  | 0.0
Debt Obligations Terms: |  |  |  |  |  |
Credit facilty interest rate description |  |  |  | (i) LIBOR, plus an additional variable spread; or (ii) an alternate base rate, which is the greater of (a) the Prime Rate in effect on such day, (b) the Federal Funds Effective Rate in effect on such day plus 0.5%, or (c) the LIBO Market Index Rate in effect on such day plus 1% and a variable spread. The applicable spreads are determined based on our debt ratings. |  |
Maximum borrowing capacity |  |  |  | $ 3,500.0 |  | 4,000.0
Maximum bank commitments increase |  |  |  | 500.0 |  |
Total maximum borrowing capacity |  |  |  | 4,000.0 |  |
Senior Debt Obligations [Member] | EPO Senior Notes HH [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 1,250.0 |  | 1,250.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 3.35% |  |
Senior Debt Obligations [Member] | EPO Senior Notes JJ [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 850.0 |  | 850.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 3.90% |  |
Senior Debt Obligations [Member] | EPO Senior Notes MM [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 1,150.0 |  | 1,150.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 3.75% |  |
Senior Debt Obligations [Member] | EPO Senior Notes PP [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 875.0 |  | 875.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 3.70% |  |
Senior Debt Obligations [Member] | EPO Senior Notes SS [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 575.0 |  | 575.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 3.95% |  |
Senior Debt Obligations [Member] | EPO Senior Notes WW [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 1,000.0 |  | 1,000.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 4.15% |  |
Senior Debt Obligations [Member] | EPO Senior Notes YY [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 1,250.0 |  | 0.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 3.125% |  |
Aggregate debt principal issued |  |  | $ 1,250.0 |  |  |
Debt issued as percent of principal amount |  |  | 99.955% |  |  |
Senior Debt Obligations [Member] | EPO Senior Notes D [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 500.0 |  | 500.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 6.875% |  |
Senior Debt Obligations [Member] | EPO Senior Notes H [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 350.0 |  | 350.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 6.65% |  |
Senior Debt Obligations [Member] | EPO Senior Notes J [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 250.0 |  | 250.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 5.75% |  |
Senior Debt Obligations [Member] | EPO Senior Notes W [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 399.6 |  | 399.6
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 7.55% |  |
Senior Debt Obligations [Member] | EPO Senior Notes R [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 600.0 |  | 600.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 6.125% |  |
Senior Debt Obligations [Member] | EPO Senior Notes Z [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 600.0 |  | 600.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 6.45% |  |
Senior Debt Obligations [Member] | EPO Senior Notes BB [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 750.0 |  | 750.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 5.95% |  |
Senior Debt Obligations [Member] | EPO Senior Notes DD [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 600.0 |  | 600.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 5.70% |  |
Senior Debt Obligations [Member] | EPO Senior Notes EE [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 750.0 |  | 750.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 4.85% |  |
Senior Debt Obligations [Member] | EPO Senior Notes GG [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 1,100.0 |  | 1,100.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 4.45% |  |
Senior Debt Obligations [Member] | EPO Senior Notes II [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 1,400.0 |  | 1,400.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 4.85% |  |
Senior Debt Obligations [Member] | EPO Senior Notes KK [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 1,150.0 |  | 1,150.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 5.10% |  |
Senior Debt Obligations [Member] | EPO Senior Notes QQ [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 975.0 |  | 975.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 4.90% |  |
Senior Debt Obligations [Member] | EPO Senior Notes UU [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 1,250.0 |  | 1,250.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 4.25% |  |
Senior Debt Obligations [Member] | EPO Senior Notes XX [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 1,250.0 |  | 1,250.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 4.80% |  |
Senior Debt Obligations [Member] | EPO Senior Notes ZZ [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 1,250.0 |  | 0.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 4.20% |  |
Aggregate debt principal issued |  |  | $ 1,250.0 |  |  |
Debt issued as percent of principal amount |  |  | 99.792% |  |  |
Senior Debt Obligations [Member] | EPO Senior Notes NN [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 400.0 |  | 400.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 4.95% |  |
Senior Debt Obligations [Member] | TEPPCO Senior Notes [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding |  |  |  | $ 0.4 |  | 0.4
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 7.55% |  |
Junior Debt Obligations [Member] | EPO Junior Subordinated Notes C [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding | [1] |  |  | $ 232.2 |  | 256.4
Debt Obligations Terms: |  |  |  |  |  |
Repayment of debt obligations |  |  |  | 24.2 |  |
Gain on extinguishment of debt |  |  |  | $ 1.5 |  |
Variable annual interest rate thereafter, variable rate basis |  |  |  | 3-month LIBOR |  |
Variable interest rate |  |  |  | 2.778% |  |
Information regarding variable interest rates paid: |  |  |  |  |  |
Weighted-average interest rate paid |  |  |  | 5.34% |  |
Junior Debt Obligations [Member] | EPO Junior Subordinated Notes C [Member] | Minimum [Member] |  |  |  |  |  |
Information regarding variable interest rates paid: |  |  |  |  |  |
Variable interest rates paid |  |  |  | 4.91% |  |
Junior Debt Obligations [Member] | EPO Junior Subordinated Notes C [Member] | Maximum [Member] |  |  |  |  |  |
Information regarding variable interest rates paid: |  |  |  |  |  |
Variable interest rates paid |  |  |  | 5.52% |  |
Junior Debt Obligations [Member] | EPO Junior Subordinated Notes D [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding | [2] |  |  | $ 700.0 |  | 700.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 4.875% |  |
Variable annual interest rate thereafter, variable rate basis |  |  |  | 3-month LIBOR |  |
Variable interest rate |  |  |  | 2.986% |  |
Junior Debt Obligations [Member] | EPO Junior Subordinated Notes E [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding | [3] |  |  | $ 1,000.0 |  | 1,000.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 5.25% |  |
Variable annual interest rate thereafter, variable rate basis |  |  |  | 3-month LIBOR |  |
Variable interest rate |  |  |  | 3.033% |  |
Junior Debt Obligations [Member] | EPO Junior Subordinated Notes F [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding | [4] |  |  | $ 700.0 |  | 700.0
Debt Obligations Terms: |  |  |  |  |  |
Interest rate, stated percentage |  |  |  | 5.375% |  |
Variable annual interest rate thereafter, variable rate basis |  |  |  | 3-month LIBOR |  |
Variable interest rate |  |  |  | 2.57% |  |
Junior Debt Obligations [Member] | TEPPCO Junior Subordinated Notes [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Principal outstanding | [1] |  |  | $ 14.2 |  | $ 14.2
Debt Obligations Terms: |  |  |  |  |  |
Variable annual interest rate thereafter, variable rate basis |  |  |  | 3-month LIBOR |  |
Variable interest rate |  |  |  | 2.778% |  |
Information regarding variable interest rates paid: |  |  |  |  |  |
Weighted-average interest rate paid |  |  |  | 5.34% |  |
Junior Debt Obligations [Member] | TEPPCO Junior Subordinated Notes [Member] | Minimum [Member] |  |  |  |  |  |
Information regarding variable interest rates paid: |  |  |  |  |  |
Variable interest rates paid |  |  |  | 4.91% |  |
Junior Debt Obligations [Member] | TEPPCO Junior Subordinated Notes [Member] | Maximum [Member] |  |  |  |  |  |
Information regarding variable interest rates paid: |  |  |  |  |  |
Variable interest rates paid |  |  |  | 5.52% |  |
[1] | Variable rate is reset quarterly and based on 3-month LIBOR, or London Inter-Bank Offered Rate, plus 2.778%. During 2019, EPO repurchased and retired $24.2 million in principal amount of these junior subordinated notes.
[2] | Fixed rate of 4.875% through August 15, 2022; thereafter, a variable rate reset quarterly and based on 3-month LIBOR plus 2.986%.
[3] | Fixed rate of 5.250% through August 15, 2027; thereafter, a variable rate reset quarterly and based on 3-month LIBOR plus 3.033%.
[4] | Fixed rate of 5.375% through February 14, 2028; thereafter, a variable rate reset quarterly and based on 3-month LIBOR plus 2.57%.

X
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- Definition The amount outstanding on a letter of credit related to operations at our facilities and motor fuel tax obligations . These letters of credit reduce the amount available for borrowing under EPO's Multi-Year Revolving Credit Facility. + References No definition available. + Details
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