BASIS OF PRESENTATION (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Percent of the assets, liabilities, revenues, expenses and cash flows discussed	100.00%
Accounts payable	$ 248	$ 301
Advance deposits	185	171
Deferred revenue	436	383
Payroll and benefits liability	185	206
Accrued liabilities	293	250
Securitized debt, net	1,686	1,714
Debt, net	$ 2,294	2,104
Restatement Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Advance deposits		58
Deferred revenue		64
Securitized debt, net		20
Other | Restatement Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Debt, net		(20)
Accounts Payable and Accrued Liabilities | Restatement Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts payable		53
Accrued liabilities		(53)
Advance Deposits and Accrued Liabilities | Restatement Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accrued liabilities		(58)
Deferred Revenue and Accrued Liabilities | Restatement Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accrued liabilities		(64)
Payroll and Benefits Liability And Accounts Payable | Restatement Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Accounts payable		3
Payroll and benefits liability		(3)
Payroll and Benefits Liability And Accrued Liabilities | Restatement Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Payroll and benefits liability		(2)
Accrued liabilities		$ 2