Trade Accounts Receivable Securitization and Sale Programs (Sales Programs Activity) (Details) - Trade Accounts Receivable Sale Programs - USD ($) $ in Millions	12 Months Ended
Aug. 31, 2018	Aug. 31, 2017	Aug. 31, 2016
Trade Accounts Receivable Securitization and Sale Program [Line Items]
Trade accounts receivable sold	$ 5,480	$ 2,968	$ 3,651
Cash proceeds received	5,463	2,962	3,647
Loss on sales	$ 17	$ 6	$ 4

Value of trade accounts receivable sold during the period under the asset-backed securitization and sales programs.

No definition available.

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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=109247956&loc=d3e107207-111719

+ Details

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- Definition

Reflects the net positive or negative amount derived from subtracting from net proceeds of sale, the carrying amounts, net of allocated reserves, of accounts receivable transferred to a third party in a transaction that qualifies for sales treatment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109247956&loc=d3e107425-111719

+ Details

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- Details

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