Debt - Schedule of Debt (Detail) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2018		Dec. 31, 2017		Oct. 31, 2016
Debt Instrument [Line Items]
Debt and capital lease obligations, gross		$ 2,957		$ 2,973
Less: unamortized deferred financing costs and discount		(11)		(12)
Debt		2,946		2,961
SF CMBS Loan [Member]
Debt Instrument [Line Items]
Debt, gross		$ 725	[1]	725	[1]	$ 725
Debt instrument, interest rate, stated percentage	[1]	4.11%
Maturity Date	[1]	2023-11
HHV CMBS Loan [Member]
Debt Instrument [Line Items]
Debt, gross		$ 1,275	[1]	1,275	[1]	$ 1,275
Debt instrument, interest rate, stated percentage	[1]	4.20%
Maturity Date	[1]	2026-11
Mortgage loans [Member]
Debt Instrument [Line Items]
Debt, gross		$ 207		207
Debt instrument, weighted average interest rate		4.13%
Maturity Date, start year	[2]	2020
Maturity Date, end year	[2]	2026
Term Loan [Member]
Debt Instrument [Line Items]
Debt, gross		$ 750		750
Debt instrument, interest rate		1.45%
Maturity Date		2021-12
Capital lease obligations [Member]
Debt Instrument [Line Items]
Capital lease obligations	[3]	$ 0		16
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt, gross	[4]	$ 0		$ 0
Debt instrument, interest rate	[4]	1.50%
Maturity Date	[2],[4]	2021-12

[1] In October 2016, we entered into a $725 million commercial mortgaged-back securities (“CMBS”) loan secured by the Hilton San Francisco Union Square and the Parc 55 Hotel San Francisco (“SF CMBS Loan”) and a $1.275 billion CMBS loan secured by the Hilton Hawaiian Village (“HHV CMBS Loan”).

[2] Assumes the exercise of all extensions that are exercisable solely at our option.

[3] Capital lease obligations were disposed in connection with the sale of our UK portfolio in February 2018.

[4] $1 billion available.