Property and Equipment, Net (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	$ 21,288	$ 20,910
Less — accumulated depreciation and amortization	(9,438)	(8,630)
Property and equipment, net	11,850	12,280
Land and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	449	452
Building and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	14,840	14,235
Furniture, Fixtures, Equipment And Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	3,992	3,798
Transportation [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	494	524
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	$ 1,513	$ 1,901