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Discontinued Operations Discontinued Operations, Alternative Cash Flow Information (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] |  |  |
Depreciation and amortization | $ 825 | $ 824 | $ 919
Pension and postretirement benefit expense (income) | 515 | (170) | (533)
Equity in earnings of partially-owned affiliates | 34 | 128 | 92
Deferred income taxes | 612 | (739) | 573
Non-cash restructuring and impairment charges | 235 | 36 | 71
Equity-based compensation | 95 | 106 | 134
Accrued income taxes | (1,222) | 855 | (753)
Other | (29) | 35 | 12
Capital expenditures | $ (586) | $ (645) | $ (760)

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