Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.

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Inventories (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
Inventories (Narrative) (Details) - USD ($) $ in Millions	Jul. 01, 2018	Sep. 30, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016
Inventory Disclosure [Abstract]
Percentage of LIFO Inventory				49.00%
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase in inventories			$ 64.2	$ (6.4)	$ (32.2)
Income from continuing operations before taxes			2,015.0	$ 1,416.1	$ 1,554.6
Change in Inventory Valuation Method
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase in inventories	$ 24.1
Income from continuing operations before taxes		$ 24.1	$ 24.1