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COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2018	Oct. 09, 2018	Apr. 28, 2018	Mar. 26, 2018	Mar. 21, 2018
6.875% Senior Notes due 2018
Debt Instrument [Line Items]
Stated interest rate					6.875%
7.25% Senior Notes due 2027
Debt Instrument [Line Items]
Stated interest rate					7.25%
14.0% Senior Notes Due 2021
Debt Instrument [Line Items]
Stated interest rate	14.00%		14.00%	14.00%
Ministry of Economic Affairs and Finance, Italy
Debt Instrument [Line Items]
Estimated loss from Italy investigation	$ 17
Subsequent Event | 6.875% Senior Notes due 2018
Debt Instrument [Line Items]
Stated interest rate		6.875%
Subsequent Event | 7.25% Senior Notes due 2027
Debt Instrument [Line Items]
Stated interest rate		7.25%

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