INCOME TAXES - Types of Temporary Differences and Carry-Forwards that Significantly Effect Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Deferred Tax Assets
Employee benefits	$ 274	$ 430
Net operating loss carry-forwards	375	320
Accrued expenses and other reserves	145	204
Receivables, net	29	134
Tax credits	27	79
Frequent guest program	12	42
Deferred income	14	20
Self-insurance	12	15
Other	0	32
Deferred tax assets	888	1,276
Valuation allowance	(313)	(249)
Deferred tax assets after valuation allowance	575	1,027
Deferred Tax Liabilities
Joint venture interests	(43)	(8)
Property and equipment	(47)	(199)
Intangibles	(963)	(1,724)
Other	(33)	0
Deferred tax liabilities	(1,086)	(1,931)
Net deferred taxes	$ (511)	$ (904)