Pension and Postretirement Benefit Plans (Schedule of Benefit Obligations in Excess of Plan Assets) (Details) - Pension - USD ($) $ in Millions	Jun. 30, 2019	Jun. 30, 2018
Domestic
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation	$ 63.4	$ 57.3
Accumulated benefit obligation	57.1	51.6
Fair value of plan assets	0.1	0.1
International
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Projected benefit obligation	10.3	28.4
Accumulated benefit obligation	10.3	28.4
Fair value of plan assets	$ 0.0	$ 11.0

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
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Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount of projected benefit obligation for defined benefit pension plan with accumulated benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
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