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Business Combinations (Schedule of Transaction Costs) (Details) - USD ($) $ in Millions | 1 Months Ended | 2 Months Ended | 3 Months Ended | 8 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | ---
Sep. 30, 2017 | Aug. 31, 2017 | Sep. 30, 2016 | Aug. 31, 2017 | Sep. 30, 2016
Successor |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Integration and Separation Costs | $ 71 |  |  |  |
Predecessor |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Integration and Separation Costs |  | $ 210 | $ 122 | $ 581 | $ 222

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- Definition Costs incurred to effect a business combination which have been expensed during the period. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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