Property and Equipment (Tables)

9 Months Ended

Sep. 30, 2017

Property Plant And Equipment [Abstract]

Property and Equipment

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

	September 30, 2017			December 31, 2016
Land and land improvements	$	2,072		$	2,047
Buildings and leasehold improvements		13,658			13,483
Furniture and equipment		2,362			2,377
Construction in progress		94			86
		18,186			17,993
Less accumulated depreciation and amortization		(8,172	)		(7,848	)
	$	10,014		$	10,145