Property and Equipment - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Property, Plant and Equipment [Line Items]
Depreciation	$ 75	$ 60	$ 224	$ 182
Impairment Loss, Property and equipment			90
Impairment and casualty loss, net	$ 2	$ 8	$ 696	8
Hurricanes Irma and Maria [Member]
Property, Plant and Equipment [Line Items]
Insurance receivable				23
Reimbursements expense				3
Impairment and casualty loss, net				7
Hurricanes Irma and Maria [Member] | Ancillary Hotel [Member]
Property, Plant and Equipment [Line Items]
Business interruption insurance recovery				8
Hurricanes Irma and Maria [Member] | Property Damage [Member]
Property, Plant and Equipment [Line Items]
Insurance receivable				$ 12