Property and Equipment, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 23,589,980	$ 22,237,181
Less — accumulated depreciation and amortization	(7,285,285)	(6,505,543)
Property and equipment, net	16,304,695	15,731,638
Land and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	629,000	556,947
Building and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	17,667,275	15,308,791
Furniture, Fixtures, Equipment and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	3,664,703	3,281,161
Transportation [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	454,087	456,942
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,174,915	$ 2,633,340