Property and Equipment

12 Months Ended

Dec. 31, 2017

Property Plant And Equipment [Abstract]

Property and Equipment

2. Property and Equipment

Property and equipment consists of the following (in millions):

	As of December 31,
	2017			2016
Land and land improvements	$	1,934		$	2,047
Buildings and leasehold improvements		13,529			13,483
Furniture and equipment		2,357			2,377
Construction in progress		106			86
		17,926			17,993
Less accumulated depreciation and amortization		(8,234	)		(7,848	)
	$	9,692		$	10,145

The aggregate cost of real estate for federal income tax purposes is approximately $10.7 billion at December 31, 2017.