BUSINESS COMBINATIONS - Unaudited Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Jun. 30, 2016	Jun. 30, 2015
Brazilian Acquisition
Business Acquisition [Line Items]
Pro forma Net revenues	$ 4,531.8	$ 4,748.1
Pro forma Net income	207.7	278.8
Pro forma Net income (loss) attributable to Coty Inc.	$ 185.4	$ 251.9
Pro forma Net income (loss) attributable to Coty Inc. per common share, Basic	$ 0.54	$ 0.71
Pro forma Net income (loss) attributable to Coty Inc. per common share, Diluted	$ 0.52	$ 0.69
Bourjois
Business Acquisition [Line Items]
Pro forma Net revenues	$ 4,553.2	$ 4,788.7
Pro forma Net income (loss) attributable to Coty Inc.	275.3	(77.0)
Pro forma Net income (loss) attributable to Coty Inc.	$ 248.4	$ (110.2)
Pro forma Net income (loss) attributable to Coty Inc. per common share, Basic	$ 0.68	$ (0.28)
Pro forma Net income (loss) attributable to Coty Inc. per common share, Diluted	$ 0.66	$ (0.28)

Business Acquisition, Pro Forma Net Income (Loss) Attributable to Parent

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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Amount after tax of pro forma income from continuing operations as if the business combination had been completed at the beginning of a period.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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