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Plant Closures (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2019
Property, Plant and Equipment [Line Items] |  |
Prior Period Reclassification Adjustment |  | $ 13
Property, Plant and Equipment [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Property, Plant and Equipment, Dispositions | 20 | 144
Property, Plant and Equipment, Disposals | $ 5 | $ 16
Depreciation expense | $ 225 | $ 341

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- Definition Amount of divestiture of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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