Pension and Other Postretirement Benefits - Schedule of Amounts Recognized in the Accumulated other Comprehensive Loss (Details) - USD ($) $ in Millions	Jun. 30, 2017	Jun. 30, 2016
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 1,369.0	$ 1,404.3
Fair value of plan assets	987.4	884.9
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	255.1	246.0
Fair value of plan assets	$ 117.0	$ 115.6

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No definition available.

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- Definition

Amount of benefit obligation for defined benefit plan with benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e2417-114920

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- Definition

Fair value of plan assets for defined benefit plan with benefit obligation in excess of plan assets.

+ References

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