Property, Plant and Equipment - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Aug. 31, 2020	Aug. 31, 2019	Aug. 31, 2018
Property, Plant and Equipment [Line Items]
Assets under capital leases		$ 62.7	$ 50.0
Accumulated amortization on assets under capital leases		20.6	18.9
Depreciation expense	$ 470.4	495.3	$ 475.8
Ag
Property, Plant and Equipment [Line Items]
Impairment charge		$ 12.2

Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services.

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The total charge for the use of long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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