Concentration of Risk and Segment Data (Segment Assets) (Details) - USD ($) $ in Millions	Aug. 31, 2021	Aug. 31, 2020
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 16,654	$ 14,397
Operating Segments \| EMS
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	4,340	3,729
Operating Segments \| DMS
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	8,228	7,251
Other non-allocated assets
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 4,086	$ 3,417

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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+ Details