Income Taxes (Reconciliation of Beginning and Ending balance of Unrecognized Tax) (Details) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized Tax Benefits, beginning balance	$ 27.4	$ 27.1	$ 56.5
Additions for tax positions	7.5	3.8	2.4
Additions for tax positions of periods	41.9	3.5	3.1
Reductions for tax positions of periods	(0.5)	(0.1)	(6.5)
Settlement with tax authorities	(0.9)	(1.7)	(12.2)
Expiration of the statute of limitations	(0.9)	(4.9)	(14.0)
Impact of foreign exchange rate fluctuations	0.1	(0.3)	(2.2)
Unrecognized Tax Benefits, ending balance	$ 74.6	$ 27.4	$ 27.1

Unrecognized Tax Benefits Foreign Currency Translation Adjustment

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

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- Definition

Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=SL6600010-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Unrecognized Tax Benefit
-URI http://asc.fasb.org/extlink&oid=6527854

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- Definition

Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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- Definition

Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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