Casino Promotional Allowances (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Promotional Allowances	$ 563	$ 1,138	$ 1,107
Cost of Promotional Allowances	269	691	639
Food and Beverage
Promotional Allowances	281	622	589
Cost of Promotional Allowances	169	463	428
Rooms
Promotional Allowances	234	422	427
Cost of Promotional Allowances	83	168	165
Other
Promotional Allowances	48	94	91
Cost of Promotional Allowances	$ 17	$ 60	$ 46