XML 119 R103.htm IDEA: XBRL DOCUMENT
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Subsequent Event (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 30, 2018 | Feb. 15, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Debt Obligations [Abstract] |  |  |  |  |  |
Repayment of debt obligations |  |  |  | $ 68,459.6 | $ 61,672.6 | $ 19,867.2
Junior Debt Obligations [Member] | EPO Junior Subordinated Notes B [Member] |  |  |  |  |  |
Debt Obligations [Abstract] |  |  |  |  |  |
Maturity date |  |  |  | Jan. 15, 2068 |  |
Interest rate terms |  |  |  | fixed/variable |  |
Interest rate, stated percentage | [1] |  |  | 7.034% |  |
Variable annual interest rate thereafter, variable rate basis | [2] |  |  | 3-month LIBOR |  |
Variable interest rate | [2] |  |  | 2.68% |  |
Forecast [Member] | Junior Debt Obligations [Member] |  |  |  |  |  |
Debt Obligations [Abstract] |  |  |  |  |  |
Estimated annual interest expense savings |  | $ 11.3 |  |  |  |
Forecast [Member] | Junior Debt Obligations [Member] | EPO Junior Subordinated Notes B [Member] |  |  |  |  |  |
Debt Obligations [Abstract] |  |  |  |  |  |
Repayment of debt obligations |  | $ 682.7 |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |
Debt Obligations [Abstract] |  |  |  |  |  |
Aggregate debt principal issued |  |  | $ 2,700.0 |  |  |
Subsequent Event [Member] | Senior Debt Obligations [Member] |  |  |  |  |  |
Debt Obligations [Abstract] |  |  |  |  |  |
Aggregate debt principal issued |  |  | 2,000.0 |  |  |
Subsequent Event [Member] | Senior Debt Obligations [Member] | EPO Senior Notes TT [Member] |  |  |  |  |  |
Debt Obligations [Abstract] |  |  |  |  |  |
Aggregate debt principal issued |  |  | $ 750.0 |  |  |
Maturity date |  |  | Feb. 15, 2021 |  |  |
Interest rate terms |  |  | fixed |  |  |
Interest rate, stated percentage |  |  | 2.80% |  |  |
Debt issued as percent of principal amount |  |  | 99.946% |  |  |
Subsequent Event [Member] | Senior Debt Obligations [Member] | EPO Senior Notes UU [Member] |  |  |  |  |  |
Debt Obligations [Abstract] |  |  |  |  |  |
Aggregate debt principal issued |  |  | $ 1,250.0 |  |  |
Maturity date |  |  | Feb. 15, 2048 |  |  |
Interest rate terms |  |  | fixed |  |  |
Interest rate, stated percentage |  |  | 4.25% |  |  |
Debt issued as percent of principal amount |  |  | 99.865% |  |  |
Subsequent Event [Member] | Junior Debt Obligations [Member] |  |  |  |  |  |
Debt Obligations [Abstract] |  |  |  |  |  |
Aggregate debt principal issued |  |  | $ 700.0 |  |  |
Subsequent Event [Member] | Junior Debt Obligations [Member] | EPO Junior Subordinated Notes F [Member] |  |  |  |  |  |
Debt Obligations [Abstract] |  |  |  |  |  |
Aggregate debt principal issued |  |  | $ 700.0 |  |  |
Maturity date |  |  | Feb. 15, 2078 |  |  |
Interest rate terms |  |  | fixed/variable |  |  |
Interest rate, stated percentage |  |  | 5.375% |  |  |
Variable annual interest rate thereafter, variable rate basis |  |  | 3-month LIBOR |  |  |
Variable interest rate |  |  | 2.57% |  |  |
Debt issued as percent of principal amount |  |  | 100.00% |  |  |
[1] | Interest was payable semi-annually in arrears in January and July of each year, which commenced in January 2008.
[2] | Interest was payable quarterly in arrears in January, April, July and October of each year commencing in April 2018.

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