Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Property and Equipment

Property and Equipment—Property and equipment is stated at cost.  Depreciation is computed by the straight-line method over estimated useful lives as follows:

Buildings and building improvements	10 to 40 years
Leasehold Improvements	Shorter of lease term or useful life
Equipment and other (including capital leases)	3 to 20 years

At December 31,	2016		2015
Land	$	195	$	195
Buildings	733		696
Capital leases (a)	164		162
Equipment and other	1,843		1,827
	2,935		2,880
Less accumulated depreciation and amortization	1,694		1,627
Net property and equipment	$	1,241	$	1,253

(a) Accumulated amortization of capital leases was $98 million and $89 million at December 31, 2016 and 2015, respectively.

Year Ended December 31,	2016		2015		2014
Depreciation expense, including capitalized lease amortization (a)	$	205	$	212	$	218

(a) Amortization expense related to capital leases was $17 million in 2016 and $16 million in each of the years 2015 and 2014.