Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(1)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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- Definition

Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(2)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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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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Pension and Other Postretirement Benefits - Schedule of Weighted-average Assumptions Used to Determine Benefit Obligation (Details)	Jun. 30, 2017	Aug. 31, 2016	Jun. 30, 2016
Defined Benefit Plan Disclosure [Line Items]
Discount rate		3.57%
Rate of compensation increase	3.50%		3.49%
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.92%		3.92%
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.89%		3.86%