Number of entities which were accounted for under the equity method of accounting.

No definition available.

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- Definition

Number of Equity Method Investments, Divested in the Period

+ References

No definition available.

+ Details

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- Definition

Number of Joint Venture Investments

+ References

No definition available.

+ Details

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- Definition

The charge against earnings in the period for known or estimated future costs arising from requirements to perform environmental remediation activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 30
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=109237650&loc=d3e13064-110858

Reference 2: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 30
-Section 50
-Paragraph 12
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13296-110859

+ Details

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

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- Definition

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.

+ References

No definition available.

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Segment Information - Additional Information (Details) $ in Millions	3 Months Ended	12 Months Ended
	Aug. 31, 2018 USD ($) jointventureinterest	Aug. 31, 2018 jointventureinterest	Aug. 31, 2017 jointventureinterest	Aug. 31, 2019 jointventureinterest
Segment Reporting Information [Line Items]
Number of Equity Method Investments				2
Equity Method Investment, Ownership Percentage				50.00%
Corporate
Segment Reporting Information [Line Items]
Environmental remediation expense \| $	$ 1
AMR
Segment Reporting Information [Line Items]
Number of Equity Method Investments	2	2
Equity Method Investment, Ownership Percentage	50.00%	50.00%
Number of Joint Venture Investments				1
Number of equity method investments, divested in the period		2
CSS
Segment Reporting Information [Line Items]
Number of Equity Method Investments			1
Equity Method Investment, Ownership Percentage			50.00%
Number of Joint Venture Investments				1
Number of equity method investments, divested in the period			1