Property and Equipment - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($) Room	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($) Room	Oct. 31, 2016 USD ($) Room
Property, Plant and Equipment [Line Items]
Depreciation	$ 297	$ 262	$ 273
Impairment Loss, Property and equipment	90
Other (loss) gain, net	$ (15)	45	99
Hurricanes Irma and Maria [Member]
Property, Plant and Equipment [Line Items]
Insurance receivable		70	119
Reimbursements expense		3	6
Impairment loss and casualty (gain) loss, net		(18)
Gain on insurance recovered in excess of insurance receivable		27
Loss on property damage insurance not recovered		9
Expenses on property and equipment from hurricane damage			35
Loss on property and equipment from hurricane damage			22
Additional insurance receivable recognized for property and equipment damaged from hurricanes			57
Hurricanes Irma and Maria [Member] | Other Assets [Member]
Property, Plant and Equipment [Line Items]
Insurance settlements receivable on hurricanes damage		4
Hurricanes Irma and Maria [Member] | Ancillary Hotel [Member]
Property, Plant and Equipment [Line Items]
Business interruption insurance recovery		28	25
Hurricanes Irma and Maria [Member] | Property Damage [Member]
Property, Plant and Equipment [Line Items]
Insurance receivable		$ 39
Hilton Waikoloa Village [Member]
Property, Plant and Equipment [Line Items]
Number of hotel rooms | Room		466
Net book value of assets					$ 177
Lease expiration date		Dec. 31, 2019
Number of rooms released | Room				134
Derecognized property and equipment, net		$ 123	3	$ 38
Liability related to derecognized property and equipment, net		135	$ 3	$ 39
Other (loss) gain, net		$ 12
Hilton Waikoloa Village [Member] | Time Share Project [Member]
Property, Plant and Equipment [Line Items]
Number of hotel rooms | Room					600