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Dispositions Dispositions (Net Income (Loss) from Discontinued Operations) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Dec. 31, 2016 | Nov. 16, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax |  |  | $ 41 | $ (182) |  |
Net (loss) income from discontinued operations | $ 3 | $ (6) | 50 | (191) |  |
Other assets | 1,790 |  | 1,790 |  | $ 1,956 |
TF Holdings Limited | Discontinued Operations, Disposed of by Sale |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Disposal Group, Including Discontinued Operation, Revenue | 0 | 261 | 13 | 819 |  |
Disposal Group, Including Discontinued Operation, Costs of Goods Sold | 0 | 248 | 0 | 730 |  |
Disposal Group, Including Discontinued Operation, Depreciation and Amortization | 0 | 0 | 0 | 80 |  |
Disposal Group, Including Discontinued Operation, Interest Expense | 0 | 12 | 0 | 33 |  |
Disposal Group, Including Discontinued Operation, Other Expense | 0 | 4 | 0 | 10 |  |
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax | 0 | (3) | 13 | (34) |  |
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax | 3 | (5) | 41 | (182) |  |
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax | 3 | (8) | 54 | (216) |  |
Discontinued Operation, Tax Effect of Discontinued Operation | 0 | 2 | (4) | 25 |  |
Net (loss) income from discontinued operations | 3 | (6) | 50 | (191) |  |
Contingent consideration asset |  |  |  |  |  | $ 120
Other assets | 58 |  | 58 |  |  |
Discontinued Operation, Change in Contingent Receivable | 3 |  | 45 |  |  |
Consolidation, Eliminations [Member] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Net (loss) income from discontinued operations | $ 0 | (12) | 0 | (33) |  |
Consolidation, Eliminations [Member] | TF Holdings Limited | Discontinued Operations, Disposed of by Sale |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Disposal Group, Including Discontinued Operation, Revenue |  | $ 53 | $ (13) | $ 125 |  |

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