Amount of increase (decrease) to additional paid in capital (APIC) resulting from changes in fair value of common and preferred stock issued to employee benefit trust but unearned.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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average closing price.

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Vesting date.

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STOCK-BASED COMPENSATION (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended								12 Months Ended
	Oct. 16, 2014	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense										$ 109.3	$ 96.7	$ 114.1
Adjustment to additional paid-in capital fair value adjustment share-based compensation awards													$ 12.9
PCIP [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Incentive plan termination period	10 years
Part A restricted stock units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense										$ 93.8	82.3	$ 76.5
Average closing price										10 days
Unrecognized compensation cost		$ 30.9								$ 30.9
Award recorded as liability		6.2				$ 5.7				$ 6.2	$ 5.7
Number of RSUs, Granted										3,216,786	2,664,538	2,678,503
Vesting period					15 months						12 months
Part B restricted stock units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense										$ 13.0	$ 12.4	$ 26.0
Average closing price										10 days
Unrecognized compensation cost		$ 8.1								$ 8.1
Number of RSUs, Granted		75,370	98,342	61,123	58,418	78,123	77,218	82,556	163,960	293,253	401,857	715,564
Vesting period					15 months						12 months
Part C restricted stock units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense										$ 2.5	$ 2.0	$ 1.5
Average closing price										10 days
Number of RSUs, Granted										85,872	58,421	47,420
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Average closing price										10 days
Performance price										1 year
CII \| Common Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost														$ 0.0
CII \| Common and Preferred Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense												$ 10.1