Revenues - Disaggregated Hotel Revenues by Market Location (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Total	$ 1,640	$ 1,586	$ 3,285	$ 3,180
Hotel
Disaggregation of Revenue [Line Items]
Total	1,587	1,586	3,206	3,180
Domestic
Disaggregation of Revenue [Line Items]
Total	1,610	1,557	3,233	3,133
Domestic \| Hotel
Disaggregation of Revenue [Line Items]
Total	1,557	1,557	3,154	3,133
Florida Gulf Coast \| Hotel
Disaggregation of Revenue [Line Items]
Total	136	122	319	276
San Diego \| Hotel
Disaggregation of Revenue [Line Items]
Total	134	134	271	263
New York \| Hotel
Disaggregation of Revenue [Line Items]
Total	142	134	244	228
San Francisco/San Jose \| Hotel
Disaggregation of Revenue [Line Items]
Total	106	101	236	208
Maui \| Hotel
Disaggregation of Revenue [Line Items]
Total	115	104	229	216
Phoenix \| Hotel
Disaggregation of Revenue [Line Items]
Total	94	92	224	216
Orlando \| Hotel
Disaggregation of Revenue [Line Items]
Total	77	132	197	277
Miami \| Hotel
Disaggregation of Revenue [Line Items]
Total	77	71	180	160
Washington, D.C. (Central Business District) \| Hotel
Disaggregation of Revenue [Line Items]
Total	96	94	169	188
Oahu \| Hotel
Disaggregation of Revenue [Line Items]
Total	55	49	101	99
Jacksonville \| Hotel
Disaggregation of Revenue [Line Items]
Total	45	45	85	78
Boston \| Hotel
Disaggregation of Revenue [Line Items]
Total	49	46	79	76
Los Angeles/Orange County \| Hotel
Disaggregation of Revenue [Line Items]
Total	36	35	72	70
Chicago \| Hotel
Disaggregation of Revenue [Line Items]
Total	49	43	69	64
Houston \| Hotel
Disaggregation of Revenue [Line Items]
Total	32	36	68	78
San Antonio \| Hotel
Disaggregation of Revenue [Line Items]
Total	32	31	68	65
Nashville \| Hotel
Disaggregation of Revenue [Line Items]
Total	35	34	64	63
Northern Virginia \| Hotel
Disaggregation of Revenue [Line Items]
Total	28	25	52	49
New Orleans \| Hotel
Disaggregation of Revenue [Line Items]
Total	25	27	51	60
Seattle \| Hotel
Disaggregation of Revenue [Line Items]
Total	30	32	50	51
Denver \| Hotel
Disaggregation of Revenue [Line Items]
Total	27	28	47	47
Austin \| Hotel
Disaggregation of Revenue [Line Items]
Total	23	14	46	37
Philadelphia \| Hotel
Disaggregation of Revenue [Line Items]
Total	26	24	45	43
Atlanta \| Hotel
Disaggregation of Revenue [Line Items]
Total	20	19	40	38
Other \| Hotel
Disaggregation of Revenue [Line Items]
Total	68	85	148	183
International \| Hotel
Disaggregation of Revenue [Line Items]
Total	$ 30	$ 29	$ 52	$ 47