Business Combination (Details) (USD $) In Millions, unless otherwise specified	Nov. 10, 2011
Purchase prices for the acquisitions
Cash and cash equivalents	$ 632
Short-term investments	56
Accounts receivable, net	194
Inventories	250
Deferred income taxes and other current assets	66
Long-term investments	62
Property and equipment, net	104
Goodwill	2,604
Purchased intangible assets	1,365
Other assets	10
Total assets acquired	5,343
Accounts payable and accrued expenses	(134)
Customer deposits and deferred revenue	(52)
Income taxes payable	(60)
Deferred income taxes	(211)
Other liabilities	(25)
Total liabilities assumed	(482)
Purchase price allocated	$ 4,861