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Short And Long-Term Debt First Lien Notes (Details) - Secured Debt [Member] - 7.625% First Lien Notes - USD ($) $ in Millions | Oct. 23, 2015 | Sep. 30, 2015
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Debt Instrument [Line Items] |  |
Interest Rate |  | 7.625%
Subsequent Event [Member] |  |
Debt Instrument [Line Items] |  |
Debt Instrument, Repurchase Amount | $ 593 |
Repayments of Debt | $ 638 |

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