RESTRUCTURING COSTS - Restructuring Roll Forward (Details) $ in Millions	12 Months Ended
	Jun. 30, 2017 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 387.3
Global Integration Activities
Restructuring Cost and Reserve [Line Items]
Balance—July 1, 2016	0.0
Restructuring charges	369.4
Payments	(35.0)
Change in estimates	(5.2)
Non-cash utilization	(3.8)
Effect of exchange rates	3.1
Balance—June 30, 2017	328.5
Acquisition Integration Program
Restructuring Cost and Reserve [Line Items]
Balance—July 1, 2016	43.4
Restructuring charges	5.9
Payments	(17.9)
Change in estimates	(3.6)
Non-cash utilization	1.8
Effect of exchange rates	0.8
Balance—June 30, 2017	30.4
Organizational Redesign
Restructuring Cost and Reserve [Line Items]
Balance—July 1, 2016	34.5
Restructuring charges	8.3
Payments	(31.5)
Change in estimates	(3.2)
Non-cash utilization	(2.2)
Effect of exchange rates	0.3
Balance—June 30, 2017	6.2
Severance and Employee Benefits | Global Integration Activities
Restructuring Cost and Reserve [Line Items]
Balance—July 1, 2016	0.0
Restructuring charges	339.1
Payments	(26.0)
Change in estimates	(5.2)
Non-cash utilization	0.0
Effect of exchange rates	2.9
Balance—June 30, 2017	310.8
Severance and Employee Benefits | Acquisition Integration Program
Restructuring Cost and Reserve [Line Items]
Balance—July 1, 2016	35.7
Restructuring charges	0.6
Payments	(11.7)
Change in estimates	(0.8)
Non-cash utilization	0.0
Effect of exchange rates	1.0
Balance—June 30, 2017	24.8
Severance and Employee Benefits | Organizational Redesign
Restructuring Cost and Reserve [Line Items]
Balance—July 1, 2016	33.6
Restructuring charges	6.1
Payments	(31.3)
Change in estimates	(3.0)
Non-cash utilization	0.0
Effect of exchange rates	0.5
Balance—June 30, 2017	5.9
Third-Party Contract Terminations | Global Integration Activities
Restructuring Cost and Reserve [Line Items]
Balance—July 1, 2016	0.0
Restructuring charges	22.4
Payments	(7.7)
Change in estimates	0.0
Non-cash utilization	0.0
Effect of exchange rates	0.2
Balance—June 30, 2017	14.9
Third-Party Contract Terminations | Acquisition Integration Program
Restructuring Cost and Reserve [Line Items]
Balance—July 1, 2016	7.6
Restructuring charges	0.6
Payments	(3.7)
Change in estimates	(2.8)
Non-cash utilization	0.0
Effect of exchange rates	(0.2)
Balance—June 30, 2017	1.5
Third-Party Contract Terminations | Organizational Redesign
Restructuring Cost and Reserve [Line Items]
Balance—July 1, 2016	0.4
Restructuring charges	0.0
Payments	0.0
Change in estimates	(0.2)
Non-cash utilization	0.0
Effect of exchange rates	0.0
Balance—June 30, 2017	0.2
Fixed Asset Write-offs | Global Integration Activities
Restructuring Cost and Reserve [Line Items]
Balance—July 1, 2016	0.0
Restructuring charges	4.6
Payments	0.0
Change in estimates	0.0
Non-cash utilization	(4.6)
Effect of exchange rates	0.0
Balance—June 30, 2017	0.0
Fixed Asset Write-offs | Organizational Redesign
Restructuring Cost and Reserve [Line Items]
Balance—July 1, 2016	0.0
Restructuring charges	2.2
Payments	0.0
Change in estimates	0.0
Non-cash utilization	(2.2)
Effect of exchange rates	0.0
Balance—June 30, 2017	0.0
Other Exit Costs | Global Integration Activities
Restructuring Cost and Reserve [Line Items]
Balance—July 1, 2016	0.0
Restructuring charges	3.3
Payments	(1.3)
Change in estimates	0.0
Non-cash utilization	0.8
Effect of exchange rates	0.0
Balance—June 30, 2017	2.8
Other Exit Costs | Acquisition Integration Program
Restructuring Cost and Reserve [Line Items]
Balance—July 1, 2016	0.1
Restructuring charges	4.7
Payments	(2.5)
Change in estimates	0.0
Non-cash utilization	1.8
Effect of exchange rates	0.0
Balance—June 30, 2017	4.1
Other Exit Costs | Organizational Redesign
Restructuring Cost and Reserve [Line Items]
Balance—July 1, 2016	0.5
Restructuring charges	0.0
Payments	(0.2)
Change in estimates	0.0
Non-cash utilization	0.0
Effect of exchange rates	(0.2)
Balance—June 30, 2017	$ 0.1