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Property and Equipment
 12 Months Ended
Dec. 31, 2023
Property, Plant and Equipment [Abstract]  
Property and Equipment Property and Equipment
Property and equipment consists of the following (in millions):
 As of December 31,
20232022
Land and land improvements$1,981 $2,020 
Buildings and leasehold improvements14,253 13,849 
Furniture and equipment2,331 2,249 
Construction in progress237 313 
18,802 18,431 
Less accumulated depreciation and amortization(9,178)(8,683)
$9,624 $9,748 
The aggregate cost of real estate for federal income tax purposes is approximately $10.3 billion at December 31, 2023.