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Acquisitions And Divestitures Discontinued Operations (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Net sales |  |  | $ 1,037
Cost of sales |  |  | 701
SG&A |  |  | 263
Other deductions, net |  |  | (473)
Earnings (Loss) before income taxes |  |  | 546
Income taxes |  |  | 671
Earnings (Loss), net of tax | $ 0 | $ 0 | $ (125)

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