Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2014

Balance Sheet Components [Abstract]

Property, Plant and Equipment

	As of December 31,
	2014			2013
	(In millions)
Property and equipment:
Computer equipment and software	$	6,073		$	5,179
Land and buildings, including building improvements	943			931
Leasehold improvements	549			512
Furniture and fixtures	350			290
Construction in progress and other	331			208
	8,246			7,120
Accumulated depreciation	(5,344		)	(4,360		)
	$	2,902		$	2,760