Restructuring and Other Special Charges (Credits), Net - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring and other special charges (credits), net	$ 16	$ 12	$ 48	$ 37
Other special charges, net	16	1	24	17
Restructuring costs		13	8	8
Reversal of reserves		5	(9)
Restructuring reserves	3		3		$ 6
Accrued expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserves	$ 2		2		$ 4
Marriott International Inc
Restructuring Cost and Reserve [Line Items]
Other special charges			19
Technology Related Costs [Member]
Restructuring Cost and Reserve [Line Items]
Other special charges		$ 6	$ 2
Prior President and Chief Executive Officer and our interim Chief Executive Officer [Member]
Restructuring Cost and Reserve [Line Items]
Other special charges				7
Litigation Reserve [Member]
Restructuring Cost and Reserve [Line Items]
Other special charges				$ 6