Property and Equipment (Tables)

6 Months Ended

Jun. 30, 2017

Property Plant And Equipment [Abstract]

Property and Equipment

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

	June 30, 2017			December 31, 2016
Land and land improvements	$	2,131		$	2,047
Buildings and leasehold improvements		13,777			13,483
Furniture and equipment		2,389			2,377
Construction in progress		75			86
		18,372			17,993
Less accumulated depreciation and amortization		(8,121	)		(7,848	)
	$	10,251		$	10,145