DERIVATIVE INSTRUMENTS - Narrative (Details)		12 Months Ended
		Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2016 EUR (€)	Oct. 31, 2015 EUR (€)
Derivative [Line Items]
Fair value of contracts in net asset positions		$ 12,400,000	$ 9,200,000
Accumulated loss on foreign currency borrowings classified as net investment hedges		274,000,000	239,700,000
Euro | Line of Credit | Term Loan | Term Loan B Facility due October 2022
Derivative [Line Items]
Principal Amount | €	[1]			€ 990,000,000.0
Euro | Net investment hedge | Line of Credit | Term Loan | Term Loan B Facility due October 2022
Derivative [Line Items]
Principal Amount | €					€ 665,000,000.0
Fair value of foreign currency borrowings designated as net investment hedge			734,600,000
Carrying value of foreign currency borrowings designated as net investment hedge			736,400,000
Foreign exchange forward contracts
Derivative [Line Items]
Foreign currency forward contracts in net liability position		6,300,000	7,300,000
Net loss reclassified as existing hedges were no longer deemed effective		3,900,000
Interest rate swap contracts
Derivative [Line Items]
Foreign currency forward contracts in net liability position		0	30,000,000
Foreign exchange contract | Foreign Currency Translation Adjustments | Net investment hedge
Derivative [Line Items]
Accumulated loss on foreign currency borrowings classified as net investment hedges		0	2,500,000
Designated as Hedging Instrument
Derivative [Line Items]
Fair value of contracts in net asset positions		6,800,000	2,800,000
Designated as Hedging Instrument | Foreign exchange forward contracts
Derivative [Line Items]
Notional amounts of derivatives		277,000,000	121,700,000
Accumulated loss recognized in OCI, net		100,000	28,900,000
Estimated loss that is expected to be reclassified into from AOCI into earnings in next 12 months			13,400,000
Designated as Hedging Instrument | Foreign exchange forward contracts | British Pound
Derivative [Line Items]
Notional amounts of derivatives		97,700,000	61,700,000
Designated as Hedging Instrument | Foreign exchange forward contracts | Euro
Derivative [Line Items]
Notional amounts of derivatives		112,100,000
Designated as Hedging Instrument | Foreign exchange forward contracts | Australia, Dollars
Derivative [Line Items]
Notional amounts of derivatives		18,700,000	19,300,000
Designated as Hedging Instrument | Foreign exchange forward contracts | Canadian Dollar
Derivative [Line Items]
Notional amounts of derivatives		37,000,000	19,100,000
Designated as Hedging Instrument | Foreign exchange forward contracts | Russian Rubles
Derivative [Line Items]
Notional amounts of derivatives		10,300,000	19,200,000
Designated as Hedging Instrument | Interest rate swap contracts
Derivative [Line Items]
Notional amounts of derivatives		0	2,000,000,000.0
Not Designated as Hedging Instrument
Derivative [Line Items]
Fair value of contracts in net asset positions		5,600,000	6,400,000
Not Designated as Hedging Instrument | Foreign exchange forward contracts
Derivative [Line Items]
Notional amounts of derivatives		$ 1,297,600,000	$ 1,002,800,000

[1] Includes €665.0 million of the Euro portion of Term Loan B originated on October 27, 2015, and the €325.0 million from the Incremental Term Loans, as defined below, originated on April 8, 2016. Repayments on the €325.0 million Incremental Term Loan B are payable quarterly beginning on September 30, 2016 at 0.25% of the original principal amount.