Casino Promotional Allowances - Retail Value (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Promotional Allowances	$ 295.0	$ 281.3	$ 853.6	$ 827.5
Food and Beverage [Member]
Promotional Allowances	159.2	147.5	467.4	440.0
Rooms [Member]
Promotional Allowances	109.1	110.9	314.7	319.5
Other Promotional Allowances [Member]
Promotional Allowances	$ 26.7	$ 22.9	$ 71.5	$ 68.0