Unaudited Condensed Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Operating activities
Net income	$ 468	$ 673
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	95	79
Stock-based compensation expense:
Stock options and other awards	58	100
Restricted stock units	357	302
Acquisition-related items:
Amortization of purchased intangible assets	230	65
Impairments of long-lived assets	85	92
Non-cash settlement gains	(1)	(14)
Gain on strategic investments and other	(11)	0
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(140)	15
Inventory	(35)	137
Prepaid expenses and other assets	(8)	(33)
Accounts payable	125	(99)
Deferred revenue and income	39	(28)
Accrued settlement costs	51	31
Other accrued and long-term liabilities	25	36
Net cash provided by operating activities	1,338	1,356
Investing activities
Net purchases of property and equipment	(189)	(141)
Net cash paid for acquired companies	(3,582)	(347)
Proceeds from sales of strategic investments	13	0
Purchases of marketable securities	(1,854)	(2,533)
Proceeds from sales and maturities of marketable securities	1,192	3,056
Net cash provided by (used in) investing activities	(4,420)	35
Financing activities
Issuance of long-term debt, net	492	0
Repurchases of Class A common stock	(1)	(670)
Dividends paid	(167)	(145)
Payment of assumed contingent consideration and debt	(57)	0
Proceeds from issuance of common stock	209	258
Minimum tax withholding paid on behalf of employees for restricted stock units	(124)	(123)
Net cash provided by (used in) financing activities	352	(680)
Increase (decrease) in cash and cash equivalents	(2,730)	711
Cash and cash equivalents at beginning of period	4,146	1,622
Cash and cash equivalents at end of period	$ 1,416	$ 2,333