Asset-Backed Securitization Programs (Securitization Activity) (Details) - Asset-Backed Securitization Programs - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Feb. 29, 2020	Feb. 28, 2019	Nov. 30, 2018	Nov. 26, 2018	Feb. 29, 2020	Feb. 28, 2019
Trade Accounts Receivable Securitization and Sale Program [Line Items]
Trade accounts receivable sold	$ 1,095.0	$ 1,078.0	$ 650.3		$ 2,257.0	$ 1,828.0
Cash proceeds received	1,089.0	1,072.0		$ 488.1	2,245.0	1,816.0
Pre-tax losses on sale of receivables	$ 6.0	$ 6.0			$ 12.0	$ 12.0
Net cash received			$ 13.9

Net Cash Received In Securitization Transactions

No definition available.

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- Definition

Value of trade accounts receivable sold during the period.

+ References

No definition available.

+ Details

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- Definition

Trade Accounts Receivable Securitization and Sale Program [Line Items]

+ References

No definition available.

+ Details

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- Definition

Cash Flows between a transferor and a transferee attributable to collections reinvested in revolving period transfers related to either a securitization, asset-backed financing arrangement, or similar transfer in which the transferor has continuing involvement with the transferred financial assets underlying the transaction (including, but not limited to, servicing, recourse, and restrictions on transferor's interests in the transferred financial assets).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (d)(2)
-URI http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Reflects, by transferred financial asset type, the amount of sales proceeds in excess of or deficient from the sum of the carrying amounts of transferred financial assets plus transaction costs, including those transactions in which the seller/transferor has continuing involvement with the financial assets that have been transferred.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 10
-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=116634877&loc=d3e96813-111708

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Period Type: