Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Incremental percentage increase (decrease) in the stated rate on a debt instrument.

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No definition available.

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Contractual interest rate for funds borrowed, under the debt agreement.

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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.

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Amount of the required periodic payments applied to principal.

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Amount, after accumulated amortization, of debt discount.

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- Definition

Weighted average interest rate of debt outstanding.

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No definition available.

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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No definition available.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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No definition available.

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The cash outflow for incremental, external costs directly pertaining to an early extinguishment of debt, including legal costs and prepayment penalties, and excluding interest and repayment of debt principal.

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No definition available.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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- Definition

Debt instrument covenant leverage ratio.

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Debt instrument covenant secured debt ratio.

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Debt Instrument, Repriced Percentage

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No definition available.

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Letters of credit outstanding amount increased.

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Additional proceeds from the amended line of credit facility during the year.

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Priced percent of additional/amended line of credit.

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Percentage of excess cash flows committed to debt payments.

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No definition available.

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Percentage of excess revolver committed to debt payments.

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Redemption Premium and Accrued Interest

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LONG-TERM DEBT (Narrative) (Details) - USD ($)						3 Months Ended	9 Months Ended
LONG-TERM DEBT (Narrative) (Details) - USD ($)	Jan. 19, 2017	Jul. 22, 2016	Apr. 14, 2016	Jan. 15, 2016	May 06, 2015	Mar. 31, 2017	Mar. 31, 2017	Mar. 31, 2016	Jan. 27, 2017	Jun. 30, 2016
Debt Instrument [Line Items]
Amended term loan facility				$ 400,000,000
Discount on debt				$ 4,800,000
Debt extinguishment costs						$ 4,500,000	$ 4,500,000
Term loan priced percent			97.10%	99.00%
Redemption of debt							$ 1,837,400,000	$ 13,400,000
Secured debt ratio						4.50	4.50
Total indebtedness ratio						6.00	6.00
Loss on extinguishment of debt						$ (4,500,000)	$ (4,500,000)
Payment of early redemption fees on debt extinguished			$ 2,100,000
Outstanding letters of credit						$ 7,800,000	$ 7,800,000
10.125% Senior Notes due 2020 [Member]
Debt Instrument [Line Items]
Interest rate			10.125%
Redemption of debt			$ 325,600,000
Redemption premium and accrued interest included in redemption amount			20,300,000
6.00% Senior Notes due 2023 [Member]
Debt Instrument [Line Items]
Interest rate						6.00%	6.00%
6.375% Senior Notes due 2025 [Member]
Debt Instrument [Line Items]
Interest rate						6.375%	6.375%
Discount on debt						$ 14,600,000	$ 14,600,000			$ 15,600,000
5.75% Senior Unsecured Notes due 2027 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount									$ 800,000,000
Interest rate						5.75%	5.75%		5.75%
New 2025 Notes [Member]
Debt Instrument [Line Items]
Debt instrument, face amount			550,000,000
Discount on debt			15,900,000
Tranche One [Member]
Debt Instrument [Line Items]
Debt instrument, face amount						$ 500,000,000	$ 500,000,000
Facility interest rate							2.50%
Tranche Two [Member]
Debt Instrument [Line Items]
Debt instrument, face amount						2,000,000,000	$ 2,000,000,000
LIBOR [Member]
Debt Instrument [Line Items]
Interest rate				1.00%
Facility interest rate				3.50%
LIBOR [Member] \| Tranche One [Member]
Debt Instrument [Line Items]
Debt instrument, face amount						500,000,000	$ 500,000,000
Facility interest rate							0.00%
LIBOR [Member] \| Tranche Two [Member]
Debt Instrument [Line Items]
Debt instrument, face amount						$ 2,000,000,000	$ 2,000,000,000
Facility interest rate							1.00%
Revolver [Member]
Debt Instrument [Line Items]
Secured debt ratio						5.25	5.25
Percentage of excess revolver committed to debt payments							35.00%
Weighted average interest rates (including margins)						3.70%	3.70%			3.40%
Senior Secured Term Loan Facility [Member]
Debt Instrument [Line Items]
Weighted average interest rates (including margins)						3.40%	3.40%			3.90%
Standby Letter Of Credit [Member]
Debt Instrument [Line Items]
Unused commitment, percentage							0.25%
Secured Debt [Member] \| Revolver [Member]
Debt Instrument [Line Items]
Outstanding letters of credit increased						$ 50,000,000	$ 50,000,000
Outstanding letters of credit						442,200,000	$ 442,200,000
Secured Debt [Member] \| Revolver [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Unused commitment, percentage							0.25%
Secured Debt [Member] \| Revolver [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Unused commitment, percentage							0.375%
Secured Debt [Member] \| Revolver [Member] \| LIBOR [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Facility interest rate							2.00%
Secured Debt [Member] \| Revolver [Member] \| LIBOR [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Facility interest rate							3.00%
Term Loan Facility [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 1,850,000,000
Interest rate decrease (basis point)		75.00%
Discount on debt						$ 21,600,000	$ 21,600,000			$ 19,000,000
Repriced percentage	99.75%
Redemption of debt			$ 196,000,000
Term Loan Facility [Member] \| Amendment and Restatement Agreement [Member]
Debt Instrument [Line Items]
Line of credit facility maximum borrowing capacity					$ 450,000,000
Payment towards principal					$ 5,100,000
Percentage of excess cash flows committed to debt payments					50.00%
Term Loan Facility [Member] \| Tranche One [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 500,000,000
Interest rate decrease (basis point)	0.75%
Term Loan Facility [Member] \| Tranche Two [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 1,350,000,000
Interest rate decrease (basis point)	0.25%
Term Loan Facility [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Facility interest rate		2.75%
Term Loan Facility [Member] \| LIBOR [Member] \| Amendment and Restatement Agreement [Member]
Debt Instrument [Line Items]
Interest rate decrease (basis point)					(25.00%)
Facility interest rate					2.75%
Term Loan Facility [Member] \| LIBOR [Member] \| Tranche One [Member]
Debt Instrument [Line Items]
Facility interest rate	2.00%
Term Loan Facility [Member] \| LIBOR [Member] \| Tranche Two [Member]
Debt Instrument [Line Items]
Facility interest rate	2.50%
Term Loan Facility [Member] \| LIBOR [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Facility interest rate		1.00%					2.00%
Term Loan Facility [Member] \| LIBOR [Member] \| Minimum [Member] \| Amendment and Restatement Agreement [Member]
Debt Instrument [Line Items]
Facility interest rate					1.00%
Term Loan Facility [Member] \| LIBOR [Member] \| Minimum [Member] \| Tranche One [Member]
Debt Instrument [Line Items]
Facility interest rate	0.00%
Term Loan Facility [Member] \| LIBOR [Member] \| Minimum [Member] \| Tranche Two [Member]
Debt Instrument [Line Items]
Facility interest rate	1.00%
Electric Lightwave [Member] \| Term Loan Facility [Member] \| $650 Million Term Loan [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 650,000,000
Electric Lightwave [Member] \| Term Loan Facility [Member] \| Term Loan 2500 Million [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	$ 2,500,000,000
Repriced percentage	99.75%
Electric Lightwave [Member] \| Term Loan Facility [Member] \| LIBOR [Member] \| $650 Million Term Loan [Member]
Debt Instrument [Line Items]
Facility interest rate	2.50%
Electric Lightwave [Member] \| Term Loan Facility [Member] \| LIBOR [Member] \| Minimum [Member] \| $650 Million Term Loan [Member]
Debt Instrument [Line Items]
Facility interest rate	1.00%