Pension and Postretirement Benefit Plans (Schedule of Plan Assets, Allocations by Asset Category) (Details) - Pension	Jun. 30, 2019	Jun. 30, 2018
Domestic
Defined Benefit Plan Disclosure [Line Items]
Target	100.00%	100.00%
Actual	100.00%	100.00%
Domestic \| Equity securities
Defined Benefit Plan Disclosure [Line Items]
Target	70.00%	70.00%
Actual	68.00%	70.00%
Domestic \| Fixed-income securities
Defined Benefit Plan Disclosure [Line Items]
Target	30.00%	30.00%
Actual	32.00%	30.00%
Domestic \| Other securities
Defined Benefit Plan Disclosure [Line Items]
Target	0.00%	0.00%
Actual	0.00%	0.00%
International
Defined Benefit Plan Disclosure [Line Items]
Target	100.00%	100.00%
Actual	100.00%	100.00%
International \| Equity securities
Defined Benefit Plan Disclosure [Line Items]
Target	7.00%	32.00%
Actual	7.00%	18.00%
International \| Fixed-income securities
Defined Benefit Plan Disclosure [Line Items]
Target	80.00%	17.00%
Actual	79.00%	29.00%
International \| Other securities
Defined Benefit Plan Disclosure [Line Items]
Target	13.00%	51.00%
Actual	14.00%	53.00%

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No definition available.

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- Definition

Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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- Definition

Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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