LONG-TERM DEBT (Redemption Rights) (Details)	12 Months Ended
	Jun. 30, 2018
2023 Unsecured Notes [Member] | Second Note Redemption [Member]
Debt Instrument [Line Items]
Redemption price	104.50%
2023 Unsecured Notes [Member] | Debt Instrument Redemption Period Three [Member]
Debt Instrument [Line Items]
Redemption price	103.00%
2023 Unsecured Notes [Member] | Debt Instrument, Redemption, Period Four [Member]
Debt Instrument [Line Items]
Redemption price	101.50%
2023 Unsecured Notes [Member] | Debt Instrument Redemption Period Fourth And Thereafter [Member]
Debt Instrument [Line Items]
Redemption price	100.00%
6.375% Senior Unsecured New Notes Due 2025 [Member] | Debt Instrument Redemption Period Fifth
Debt Instrument [Line Items]
Redemption price	103.188%
6.375% Senior Unsecured New Notes Due 2025 [Member] | Debt Instrument Redemption Period Sixth
Debt Instrument [Line Items]
Redemption price	102.125%
6.375% Senior Unsecured New Notes Due 2025 [Member] | Debt Instrument Redemption Period Seven
Debt Instrument [Line Items]
Redemption price	101.063%
6.375% Senior Unsecured New Notes Due 2025 [Member] | Debt Instrument Redemption Period Seventh And There After
Debt Instrument [Line Items]
Redemption price	100.00%
5.75% Senior Unsecured Notes due 2027 [Member] | Debt Instrument Redemption Period Sixth
Debt Instrument [Line Items]
Redemption price	102.875%
5.75% Senior Unsecured Notes due 2027 [Member] | Debt Instrument Redemption Period Seven
Debt Instrument [Line Items]
Redemption price	101.917%
5.75% Senior Unsecured Notes due 2027 [Member] | Debt Instrument Redemption Period Eight
Debt Instrument [Line Items]
Redemption price	100.958%
5.75% Senior Unsecured Notes due 2027 [Member] | Debt Instrument Redemption Period Seventh And There After
Debt Instrument [Line Items]
Redemption price	100.00%