Supplemental Disclosures of Cash Flow Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Supplemental Disclosure of Cash Flow Information [Line Items]
Interest Paid	$ 135	$ 123	$ 118
Income taxes paid	15	63	16
Capital expenditures included within accounts Payable and accrued expenses	$ 26	15	$ 20
Common stock shares issued	978		441
Mortgage loans assumed	$ 310
Unpaid and accrued dividends	136	206	$ 120
Hilton Waikoloa Village [Member]
Supplemental Disclosure of Cash Flow Information [Line Items]
Derecognized property and equipment, net	123	3
Hilton Waikoloa Village [Member] | Hilton Grand Vacations [Member]
Supplemental Disclosure of Cash Flow Information [Line Items]
Liability related to derecognized property and equipment, net	$ 135	$ 3
New York Hilton Midtown and Hilton Waikoloa Village [Member]
Supplemental Disclosure of Cash Flow Information [Line Items]
Derecognized property and equipment, net			70
New York Hilton Midtown and Hilton Waikoloa Village [Member] | Hilton Grand Vacations [Member]
Supplemental Disclosure of Cash Flow Information [Line Items]
Liability related to derecognized property and equipment, net			$ 72