Property and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2017

Property Plant And Equipment [Abstract]

Property and equipment consists of the following for the periods presented:

	December 31, 2017			December 31, 2016
	(in millions)
Capitalized software and website development	$	213		$	153
Building (1)		123			123
Leasehold improvements		39			39
Computer equipment and purchased software		46			37
Furniture, office equipment and other		19			19
		440			371
Less: accumulated depreciation		(177	)		(111	)
Total	$	263		$	260

(1)

The Company is deemed for accounting purposes to be the owner of its corporate headquarters building under GAAP, and depreciates the asset over its estimated useful life of 40 years on a straight-line basis. Refer to “Note 13 – Commitments and Contingencies,” for additional information on our corporate headquarters lease.