Commitments and Contingencies - Other (Details) $ in Millions	3 Months Ended
Nov. 30, 2018 USD ($) lawsuit	Aug. 31, 2018 USD ($)
Loss Contingencies [Line Items]
Insurance Receivable	$ 16	$ 36
GEORGIA \| Wrongful Death Lawsuits \| Settled Litigation
Loss Contingencies [Line Items]
Claims Settled \| lawsuit	2
Amount Awarded	$ 20
GEORGIA \| Wrongful Death Lawsuits \| Pending Litigation
Loss Contingencies [Line Items]
Claims Filed \| lawsuit	5
Accrual, Current	$ 10
Pending Claims \| lawsuit	3
Insurance Receivable	$ 10

Amount awarded to other party in judgment or settlement of litigation.

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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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- Definition

Amount of loss contingency liability expected to be resolved within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

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- Definition

Number of claims settled.

+ References

No definition available.

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- Definition

The total number of new claims filed pertaining to a loss contingency during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349

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- Definition

Number of pending claims pertaining to a loss contingency.

+ References

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Amount of receivable related to a loss contingency accrual. For example, an insurance recovery receivable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=115931803&loc=d3e12053-110248

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