Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Taxes [Line Items]
Provision for U.S federal income taxes	$ (2,346,000,000)	$ 82,000,000	$ 118,000,000
Income taxes paid	16,000,000	0	0
Nontaxable liquidation of subsidiaries			(34,000,000)
Tax rate change	(25,000,000)		(81,000,000)
Net operating loss carryforwards	10,000,000	6,000,000
Valuation allowance	4,000,000
Hilton [Member]
Income Taxes [Line Items]
Income taxes paid		$ 146,000,000	$ 119,000,000
U.S. Federal Tax [Member] | REIT [Member]
Income Taxes [Line Items]
Provision for U.S federal income taxes	0
Federal, State and Foreign [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	71,000,000
Federal [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	5,000,000
State [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	$ 14,000,000
Earliest Tax Year [Member]
Income Taxes [Line Items]
Net operating loss carry forwards expiration year	2023
Latest Tax Year [Member]
Income Taxes [Line Items]
Net operating loss carry forwards expiration year	2025
Foreign [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	$ 52,000,000