STOCKHOLDER'S EQUITY (Details) - USD ($)	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2021
Document Fiscal Year Focus				2020
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	$ (1,000,000)		$ 1,000,000	$ (17,000,000)	$ 1,000,000
Balance at the beginning of period	(9,000,000)	$ 7,000,000	4,000,000	7,000,000	4,000,000	$ (10,000,000)
Reclassification Aof net loss relating to interest rate cash flow hedges from AOCI to earnings, Tax of less than $1 million	1,000,000		1,000,000	1,000,000	1,000,000
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	(2,000,000)			(18,000,000)
Total other comprehensive (loss) income, net of tax	(1,000,000)	(16,000,000)	1,000,000	(17,000,000)	1,000,000
Balance at the end of period	(10,000,000)	$ (9,000,000)	5,000,000	(10,000,000)	5,000,000
Other Comprehensive Income (Loss), Gain (Loss) on Derivatives Qualifying as Hedges, Tax	1,000,000			8,000,000
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax					0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	$ 1,000,000		$ 1,000,000	$ 1,000,000	$ 1,000,000
Forecast [Member]
Other Comprehensive Loss, reclassification adjustment from AOCI to earnings, pretax						4,000,000
Other Comprehensive Loss, reclassification adjustment from AOCI to earnings, Tax of less than $1 million						$ 2,000,000