Pension and Other Postretirement Benefits (Details 6) - Other Postretirement Plans $ in Millions	12 Months Ended
Jun. 30, 2015 USD ($)
Expected health care cost trend rate
Effect of one percentage point increase in the assumed health care cost trend rate on service and interest cost components	$ 0.5
Effect of one percentage point increase in the assumed health care cost trend rate on postretirement benefit obligation	3.8
Effect of one percentage point decrease in the assumed health care cost trend rate on service and interest cost components	0.5
Effect of one percentage point decrease in the assumed health care cost trend rate on postretirement benefit obligation	$ 3.4

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- Definition

Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits.

+ 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 (m)

-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

+ Details

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- Definition

Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs.

+ References

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- Definition

The effect of a one-percentage-point increase in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits.

+ References

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The effect of a one-percentage-point increase in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs.

+ References

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